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Eidgenössisches Examen Chiropraktik study materials
Eidgenössisches Examen Chiropraktik study resources

Eidgenössisches Examen Chiropraktik practice questions

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Question 1Neuromusculoskeletal assessment and differential diagnosis

A 46-year-old carpenter presents with neck pain radiating down the lateral arm and forearm into the thumb and index finger. Neurological examination reveals weakness of the biceps brachii and wrist extensors (extensor carpi radialis longus/brevis) and a diminished brachioradialis reflex. Which cervical nerve root is most likely compressed?

  1. C6 nerve root (C5–C6 disc herniation or neuroforaminal stenosis) Correct answer.
  2. C5 nerve root (deltoid weakness and lateral shoulder numbness)
  3. C7 nerve root (triceps weakness and middle finger numbness)
  4. C8 nerve root (finger flexor weakness and little finger numbness)

Explanation

C6 radiculopathy characteristically causes pain and sensory alteration radiating to the lateral forearm, thumb, and index finger. Motor testing reveals weakness in the wrist extensors (extensor carpi radialis) and elbow flexors (biceps/brachioradialis), with hyporeflexia or absence of the brachioradialis and biceps deep tendon reflexes. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 2Neuromusculoskeletal assessment and differential diagnosis

A 68-year-old woman presents with progressive clumsiness in her hands, difficulty buttoning shirts, and a stiff, unsteady gait. Physical examination reveals bilateral positive Hoffman reflexes, hyperreflexia at the patellar and Achilles tendons, sustained ankle clonus, and an 'inverted supinator reflex' (brachioradialis testing produces finger flexion with absent elbow flexion). What is the primary diagnosis?

  1. Bilateral severe carpal tunnel syndrome with thenar atrophy
  2. Acute lumbar disc herniation at L4-L5 with radiculopathy
  3. Cervical spondylotic myelopathy (CSM) with spinal cord compression Correct answer.
  4. Normal pressure hydrocephalus without spinal involvement

Explanation

This clinical picture represents classic cervical spondylotic myelopathy (CSM). The combination of upper extremity lower motor neuron signs at the level of compression (inverted supinator reflex indicating C5/C6 involvement) and lower extremity upper motor neuron signs (Hoffman sign, hyperreflexia, clonus, spastic ataxic gait) is characteristic for cervical spinal cord compression and demands urgent MRI evaluation. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 3Neuromusculoskeletal assessment and differential diagnosis

Which listed conventional myotomal and sensory comparison helps distinguish an L5 from an S1 radiculopathy, recognizing overlap, variable reflex findings and the need for complete assessment?

  1. L5 causes loss of the Achilles reflex and weakness of plantar flexion, whereas S1 causes loss of the patellar reflex
  2. L5 causes weakness of the quadriceps and anterior thigh numbness, whereas S1 causes groin pain
  3. Both L5 and S1 cause identical weakness of the extensor digitorum brevis without sensory distinctions
  4. L5 affects the extensor hallucis longus and gluteus medius with sensory loss over the anterolateral leg and dorsum of the foot (no reflex change), whereas S1 affects the gastrocnemius/soleus with a diminished Achilles reflex and lateral foot sensory loss Correct answer.

Explanation

An L5 radiculopathy typically causes weakness of big toe extension (extensor hallucis longus), ankle dorsiflexion/eversion (extensor digitorum / tibialis anterior), and hip abduction (gluteus medius), with sensory deficits over the anterolateral calf, first web space, and dorsum of the foot, typically sparing deep tendon reflexes. An S1 radiculopathy causes weakness of ankle plantarflexion (gastrocnemius-soleus complex / toe walking difficulty), sensory loss over the lateral foot and small toe, and a depressed or absent Achilles (calcaneal) deep tendon reflex. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 4Spinal biomechanics, manual-care evidence and limits

In a conventional mid-to-lower cervical biomechanics model, which listed lateral-flexion/rotation coupling is commonly described, rather than being a fixed relation for every position, level or individual?

  1. Lateral flexion is coupled with contralateral axial rotation due to horizontal facet orientation
  2. Lateral flexion is coupled with ipsilateral axial rotation due to the 45-degree oblique orientation of the facet joints Correct answer.
  3. Lateral flexion is strictly uncoupled from axial rotation due to the uncinate processes
  4. Lateral flexion is coupled with pure sagittal extension regardless of posture

Explanation

Ipsilateral axial rotation is commonly coupled with lateral flexion in conventional mid-to-lower cervical descriptions. Facet geometry contributes, but posture, level, anatomy and loading influence the actual relationship. An approximate orientation does not create a universal movement rule or a manipulation prescription.

Question 5Spinal biomechanics, manual-care evidence and limits

How does the spatial orientation of the zygapophysial (facet) joints differ between the mid-lumbar levels (L1–L4) and the lumbosacral junction (L5–S1), and what is its primary functional consequence?

  1. L1–L4 facets lie in the transverse plane to maximize axial rotation, whereas L5–S1 facets lie in the sagittal plane to resist lateral bending
  2. L1–L4 facets lie in the frontal plane to prevent lateral bending, whereas L5–S1 facets lie in the transverse plane to allow pelvic rotation
  3. L1–L4 facets are completely horizontal, whereas L5–S1 facets are inverted to lock the sacral base
  4. L1–L4 facets are oriented predominantly in the sagittal plane to resist axial rotation, whereas L5–S1 facets are oriented more in the coronal (frontal) plane to resist anterior shear force Correct answer.

Explanation

Mid-lumbar facet joints (L1–L4) are oriented predominantly in the sagittal plane (with J-shaped or curved articular surfaces), which facilitates flexion-extension while strictly limiting axial rotation to approximately 1–2 degrees per segment. In contrast, the L5–S1 facet joints are oriented more coronally (frontal plane), a critical adaptation that resists the substantial anterior shear forces imposed by the downward and forward tilt of the sacral base. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 6Spinal biomechanics, manual-care evidence and limits

During quiet and deep inspiration, how do the kinematic motion patterns differ between the upper ribs (ribs 1–5) and the lower true ribs (ribs 6–10)?

  1. Ribs 1–5 move exclusively via caliper motion, whereas ribs 6–10 move strictly via pump-handle motion
  2. Ribs 1–5 exhibit predominantly 'pump-handle' motion increasing anterior-posterior thoracic diameter, whereas ribs 6–10 exhibit predominantly 'bucket-handle' motion increasing lateral thoracic diameter Correct answer.
  3. Ribs 1–5 exhibit bucket-handle motion, whereas ribs 6–10 exhibit pump-handle motion
  4. All ribs 1–10 exhibit identical pure translation along the vertical Y-axis

Explanation

Biomechanically, the upper ribs (ribs 1–5) have costovertebral and costotransverse axes lying close to the coronal plane, producing predominantly 'pump-handle' motion that elevates the sternum and expands the thoracic cage in the anterior-posterior dimension. The lower ribs (ribs 6–10) have axes oriented closer to the sagittal plane, producing predominantly 'bucket-handle' motion that elevates the lateral rib shafts and expands the transverse (lateral) diameter of the thorax. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 7Imaging selection, pattern recognition and uncertainty

Which listed posterior vertebral-body alignment line is described as George’s line, with a focal disruption requiring appropriate imaging and clinical interpretation rather than automatically proving every case of instability?

  1. The line connecting the tips of the spinous processes; disruption indicates trapezius spasm
  2. The smooth curve connecting the posterior margins of the vertebral bodies (posterior vertebral body line); disruption indicates anterolisthesis, retrolisthesis, or segmental instability Correct answer.
  3. The line along the anterior margin of the trachea; disruption indicates thyroid enlargement
  4. The line traversing the spinal cord parenchyma; disruption indicates disc calcification

Explanation

George's line is formed by drawing a continuous smooth vertical line along the posterior cortical margins of the cervical vertebral bodies on a lateral radiograph. Any focal disruption, step-off, or translation greater than 2 to 3 mm signifies segmental displacement (anterolisthesis or retrolisthesis), indicating facet dislocation, pars fracture, ligamentous disruption, or degenerative instability. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 8Imaging selection, pattern recognition and uncertainty

According to the Meyerding grading system for spondylolisthesis, how is a Grade II spondylolisthesis defined?

  1. 0% to 25% anterior translation of the superior vertebral body
  2. 76% to 100% anterior translation of the superior vertebral body
  3. 26% to 50% anterior translation of the superior vertebral body over the inferior vertebral body Correct answer.
  4. Greater than 100% translation (spondyloptosis)

Explanation

The Meyerding classification divides the superior endplate of the subjacent vertebra into four equal quarters: Grade I represents 0% to 25% displacement; Grade II represents 26% to 50% displacement; Grade III represents 51% to 75%; Grade IV represents 76% to 100%; and Grade V (spondyloptosis) represents complete displacement (>100%) off the sacral promontory. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 9Imaging selection, pattern recognition and uncertainty

Which listed T1/T2 signal pattern describes Modic type1 endplate change, without asserting that it establishes the pain source or a single precise time of onset?

  1. Hyperintense on T1 and hyperintense on T2; represents fatty bone marrow transformation
  2. Hypointense on T1 and hypointense on T2; represents advanced subchondral bone sclerosis
  3. Isointense on T1 and hyperintense on STIR; represents primary metastatic osteosarcoma
  4. Hypointense on T1-weighted images and hyperintense on T2/STIR-weighted images; represents acute/active vascularized bone marrow edema and inflammation Correct answer.

Explanation

Modic Type 1 changes show low signal intensity (hypointense) on T1-weighted images and high signal intensity (hyperintense) on T2-weighted and STIR sequences, corresponding histologically to active vertebral endplate disruption, vascularized granulation tissue, and bone marrow edema strongly correlated with acute axial low back pain. Modic Type 2 represents fatty replacement (high T1, high T2), while Modic Type 3 represents sclerosis (low T1, low T2). Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 10Neurological and musculoskeletal danger signs

A 44-year-old man with acute severe low back pain is evaluated in a chiropractic clinic. Which symptom complex represents a surgical RED FLAG indicating acute Cauda Equina Syndrome (CES)?

  1. Saddle anesthesia (loss of sensation in S3–S5 dermatomes), urinary retention or overflow incontinence, fecal incontinence, and progressive bilateral motor weakness Correct answer.
  2. Unilateral knee pain aggravated by downhill walking with normal reflexes
  3. Localized paraspinal muscle tenderness relieved by rest
  4. Mild morning stiffness lasting 10 minutes that resolves after a hot shower

Explanation

Cauda Equina Syndrome is an acute neurosurgical emergency caused by massive compression of the lumbosacral nerve roots. The classic tetrad includes saddle anesthesia (perianal, perineal, and genital sensory loss), bladder dysfunction (urinary retention with overflow incontinence), bowel dysfunction (loss of anal sphincter tone and fecal incontinence), and bilateral lower extremity motor and sensory deficits. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 11Neurological and musculoskeletal danger signs

A 38-year-old female presents with acute, sudden-onset, severe unilateral occipital-nuchal headache that she describes as 'completely unlike any headache previously experienced' ('thunderclap-like'), accompanied by ipsilateral ptosis and miosis (partial Horner syndrome). What vascular emergency must be immediately suspected?

  1. Benign tension-type headache with dry eye syndrome
  2. Acute angle-closure glaucoma without pupillary changes
  3. Cervical artery dissection (vertebral or internal carotid artery dissection) Correct answer.
  4. Trigeminal neuralgia involving the V2 maxillary division

Explanation

Acute spontaneous cervical artery dissection (vertebral artery or internal carotid artery dissection) typically presents with sudden, severe, unfamiliar unilateral neck or occipitotemporal headache. In carotid dissection, ischemic disruption of the sympathetic plexus surrounding the internal carotid artery produces an ipsilateral partial Horner syndrome (ptosis and miosis without anhidrosis). High clinical index of suspicion and emergency CT/MR angiography are vital before cerebral ischemia/stroke occurs. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 12Neurological and musculoskeletal danger signs

Which listed historical symptom mnemonic is associated with posterior-circulation neurological concern, without claiming it is a validated complete screen or that absence guarantees safe cervical manipulation?

  1. Dyspepsia, Diarrhea, Dysuria, Depression, Dermatitis, and Nausea, Necrosis, Nocturia
  2. Dyspnea, Dehydration, Disorientation, Dementia, Delirium, and Numbness, Narcolepsy, Nephritis
  3. Delirium, Dysphoria, Dyspraxia, Dyskinesia, Dyshidrosis, and Nystagmus, Neoplasia, Neuralgia
  4. Dizziness (vertigo), Drop attacks, Diplopia, Dysarthria, Dysphagia, and Nausea, Numbness (facial/body hemianesthesia), Nystagmus (plus Ataxia) Correct answer.

Explanation

The '5 D's and 3 N's' is a crucial screening mnemonic for brainstem and vertebrobasilar territory ischemia: Dizziness/vertigo, Drop attacks, Diplopia, Dysarthria, Dysphagia, Nausea/vomiting, Numbness (perioral or hemisensory), Nystagmus, along with Ataxia of gait. Any positive findings mandate immediate medical referral and avoidance of cervical manual therapy. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 13Swiss chiropractic qualification and professional framework

Under the Swiss Federal Act on University Medical Professions (Medizinalberufegesetz / MedBG, SR 811.11), which five professions are legally recognized and regulated as university medical professions in Switzerland?

  1. Human medicine (physicians), dentistry, pharmacy, veterinary medicine, and chiropractic medicine Correct answer.
  2. Human medicine, physiotherapy, osteopathy, naturopathy, and psychology
  3. Human medicine, nursing science, occupational therapy, podiatry, and pharmacy
  4. Dentistry, pharmacy, biomedical science, radiology technology, and chiropractic medicine

Explanation

Under Art. 2 of the Swiss MedBG, exactly five professions are federally recognized as university medical professions: human medicine (physicians), dental medicine, pharmacy, veterinary medicine, and chiropractic medicine. All five require an accredited university Master's degree and passing the corresponding Eidgenössisches Examen (Federal Licensing Examination). Use the current official Swiss legal and professional framework and the actual individual authorization. A short conceptual answer is not a complete legal determination or promise that every listed activity is permitted.

Question 14Swiss chiropractic qualification and professional framework

In the standard Swiss insurance framework, which listed general description distinguishes chiropractic benefit and direct access from an assumed universal referral requirement, while actual indication, service and insurance-contract conditions must still be checked?

  1. Chiropractic is only covered if the patient has purchased private supplementary insurance (VVG)
  2. Chiropractic care is a mandatory statutory benefit (Pflichtleistung) in basic health insurance, accessible directly by patients without mandatory prior physician referral under the standard insurance model Correct answer.
  3. Chiropractic is covered up to a maximum of CHF 200 per calendar year only
  4. Chiropractic is covered exclusively for inpatient hospital admissions exceeding 30 days

Explanation

Swiss compulsory insurance includes chiropractic services under the applicable framework, and the standard access arrangement differs from assuming a universal physician referral. Actual reimbursable services, indication, authorization and managed-care contracts can introduce conditions. This is not a guarantee of payment for every intervention or every policy.

Question 15Swiss chiropractic qualification and professional framework

Which listed description captures first-contact assessment and triage within Swiss chiropractic competence, without implying unrestricted authority over every disease or clinical activity?

  1. The chiropractor has full diagnostic autonomy to evaluate, examine, diagnose, triage, and formulate independent management plans for patients without prior medical referral Correct answer.
  2. The chiropractor can only treat patients who have an emergency physician present in the room
  3. The chiropractor must contact an insurance adjustor before speaking with the patient
  4. The chiropractor is restricted solely to executing treatment orders written by a physical therapist

Explanation

First-contact practice permits relevant assessment and clinical reasoning without treating a physician referral as universally necessary in the standard arrangement. It remains bounded by competence, applicable authorization and the duty to refer conditions needing other care. It does not create unrestricted prescribing, imaging-operation or specialist authority.

Question 16Neuromusculoskeletal assessment and differential diagnosis

During the Straight Leg Raise (SLR / Lasègue test) in a supine patient, reproduction of sharp radiating shooting pain down the posterior leg below the knee between which angular ranges is most indicative of mechanical irritation of the L4–S1 nerve roots?

  1. Between 30° and 70° of hip flexion Correct answer.
  2. Exclusively between 0° and 15° of hip flexion
  3. Only when the hip is flexed beyond 110°
  4. Exclusively during passive hip internal rotation at 90° flexion

Explanation

Between 30° and 70° of passive straight leg raising, the sciatic nerve and its roots (L4, L5, S1, S2) undergo maximum excursion and tension over the intervertebral disc and foramina. Pain before 30° is often non-organic or severe acute inflammation; pain beyond 70° typically represents hamstring tightness or sacroiliac/lumbar facet joint strain rather than classic dural root tension. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 17Neuromusculoskeletal assessment and differential diagnosis

A crossed straight-leg raise reproduces the patient’s familiar contralateral radicular pain. Which listed disc-related differential is supported, without transferring one published specificity percentage to every population?

  1. It rules out disc herniation and indicates severe hamstring spasm
  2. It is highly specific (~90%) for a lumbar disc herniation, particularly a medial (axillary) or large paracentral herniation Correct answer.
  3. It indicates isolated sacroiliac ligamentous sprain on the right side
  4. It is an invalid test with no proven diagnostic correlation

Explanation

The Crossed Straight Leg Raise (Well Leg Raise / Fajersztajn sign) has moderate sensitivity (approx. 25–40%) but very high clinical specificity (approx. 88–97%) for lumbar disc herniation. Traction on the unaffected contralateral nerve root pulls the dural sac caudally and medially, squeezing the symptomatic inflamed nerve root against a large or axillary disc protrusion on the opposite side. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 18Neuromusculoskeletal assessment and differential diagnosis

Which listed extraspinal sciatic-irritation differential may be considered in the supplied buttock presentation, rather than being definitively proven by a FAIR maneuver or a normal root examination?

  1. Piriformis syndrome (extraspinal sciatic nerve entrapment) Correct answer.
  2. Acute L3 radiculopathy with femoral nerve traction
  3. Complete transection of the tibial nerve at the popliteal fossa
  4. Avascular necrosis of the femoral head with joint collapse

Explanation

Piriformis syndrome is an extraspinal entrapment neuropathy of the sciatic nerve as it passes under (or through) the piriformis muscle in the greater sciatic foramen. The FAIR maneuver stretches the piriformis tendon over the sciatic nerve, reproducing local buttock tenderness and radiating aching without true neurological deficits (motor loss, hyporeflexia). Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 19Neuromusculoskeletal assessment and differential diagnosis

A 28-year-old dental hygienist presents with severe jaw pain and inability to open her mouth fully. She previously had a clicking jaw for 2 years, which suddenly stopped yesterday, replaced by painful limited mouth opening (maximum interincisal opening of 22 mm) with mandibular deviation to the symptomatic side. What temporomandibular joint (TMJ) pathology has occurred?

  1. Posterior disc displacement with immediate reduction
  2. Bilateral condylar fracture with subluxation
  3. Anterior disc displacement WITHOUT reduction (acute closed lock) Correct answer.
  4. Chronic myofascial masseter hypertrophy with normal joint mechanics

Explanation

In TMJ anterior disc displacement WITH reduction, a reciprocal click occurs as the condyle pops back onto the disc during opening. When it progresses to anterior disc displacement WITHOUT reduction (closed lock), the displaced disc forms an anatomical mechanical barrier anterior to the condyle; the click disappears, maximum active opening drops to <30 mm, and the mandible deviates toward the affected side during attempted opening. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 20Neuromusculoskeletal assessment and differential diagnosis

Which listed group of provocative maneuvers has been used in thoracic-outlet assessment, recognizing that they have important accuracy limitations and cannot independently confirm or exclude vascular or neurological disease?

  1. Phalen test, Tinel sign at the elbow, and Finkelstein test
  2. Lachman test, McMurray test, and Thessaly test
  3. Kernig sign, Brudzinski sign, and Lhermitte test
  4. Roos test (Elevated Arm Stress Test / EAST), Adson test, Wright hyperabduction test, and Costoclavicular (Eden) test Correct answer.

Explanation

Thoracic outlet syndrome (TOS) involves compression of the brachial plexus and/or subclavian vessels at the interscalene triangle (Adson test), costoclavicular space (Eden test), or retropectoralis minor space (Wright hyperabduction test). The Roos test (EAST-opening/closing hands for 3 minutes with arms abducted 90° and externally rotated) reproduces ischemic/neurological fatigue and pain. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 21Neuromusculoskeletal assessment and differential diagnosis

Which listed branch-course explanation accounts for the fact that thenar-eminence skin sensation can be preserved in carpal tunnel syndrome, without claiming this single observation always distinguishes a root lesion?

  1. Sensation over the thenar eminence is preserved in Carpal Tunnel Syndrome because the palmar cutaneous branch of the median nerve passes superficial to the carpal tunnel Correct answer.
  2. Carpal Tunnel Syndrome causes sensory loss exclusively over the medial 5th digit
  3. C6 radiculopathy causes numbness restricted solely to the posterior calf and heel
  4. There is no anatomical or sensory difference between the two conditions

Explanation

The palmar cutaneous branch of the median nerve branches off approximately 5 cm proximal to the wrist crease and passes superficial to the transverse carpal ligament (flexor retinaculum). Therefore, sensation over the proximal thenar eminence is preserved in true carpal tunnel syndrome, whereas a C6 radiculopathy typically involves numbness across the entire C6 dermatome including the thenar eminence and lateral forearm. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 22Neuromusculoskeletal assessment and differential diagnosis

A 52-year-old musician presents with numbness in the 4th and 5th digits and weakness when pinching paper between the thumb and index finger. During testing, the patient compensates for weak adductor pollicis muscle by vigorously flexing the interphalangeal joint of the thumb (Froment sign). What nerve is compressed and at which common anatomical site?

  1. Median nerve at the pronator teres
  2. Ulnar nerve at the cubital tunnel (elbow) or Guyon canal (wrist) Correct answer.
  3. Radial nerve at the arcade of Frohse
  4. Musculocutaneous nerve at the coracobrachialis

Explanation

Froment sign tests the adductor pollicis, an ulnar-innervated muscle. When the ulnar nerve is compromised (most commonly in the cubital tunnel behind the medial epicondyle or Guyon canal), the patient cannot perform powerful thumb adduction and reflexively substitutes the flexor pollicis longus (median-innervated), causing hyperflexion of the thumb interphalangeal joint when gripping paper. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 23Neuromusculoskeletal assessment and differential diagnosis

A 50-year-old police officer wearing a heavy duty belt presents with burning pain, numbness, and hypersensitivity over the anterolateral aspect of his right thigh. Neurological examination reveals intact quadriceps strength, normal patellar reflexes, and normal straight leg raise. What is the diagnosis?

  1. L3 nerve root compression with severe femoral neuropathy
  2. Trochanteric bursitis with complete gluteus medius tear
  3. Meralgia paresthetica (entrapment of the Lateral Femoral Cutaneous Nerve under the inguinal ligament) Correct answer.
  4. Obturator nerve entrapment in the obturator canal

Explanation

Meralgia paresthetica is an entrapment neuropathy of the lateral femoral cutaneous nerve (LFCN), a purely sensory nerve originating from L2–L3 that passes beneath or through the lateral attachment of the inguinal ligament near the anterior superior iliac spine (ASIS). Because the LFCN contains no motor fibers, motor power and the patellar deep tendon reflex remain completely normal. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 24Neuromusculoskeletal assessment and differential diagnosis

A 54-year-old diabetic woman presents with insidious onset of progressive shoulder stiffness and pain over 6 months. Physical examination reveals profound and equal loss of BOTH active and passive glenohumeral range of motion in a capsular pattern (external rotation most restricted, followed by abduction and internal rotation), with normal plain radiographs. What is the diagnosis?

  1. Adhesive capsulitis (frozen shoulder) Correct answer.
  2. Acute subacromial calcific tendinitis
  3. Traumatic posterior shoulder dislocation
  4. Acromioclavicular joint osteoarthritis Grade 4

Explanation

Adhesive capsulitis is characterized by progressive fibrosis and contracture of the glenohumeral joint capsule, classically manifesting as a global reduction in both active AND passive range of motion in a capsular pattern (external rotation > abduction > internal rotation) with normal glenohumeral joint space on plain radiographs. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 25Neuromusculoskeletal assessment and differential diagnosis

A 24-year-old football player complains of deep anterior groin pain aggravated by prolonged sitting and pivoting. On physical examination, passive hip flexion to 90° combined with adduction and internal rotation vigorously reproduces sharp anterior groin pain (positive FADIR test). What condition does this test primarily evaluate?

  1. Greater trochanteric pain syndrome
  2. Femoroacetabular impingement (FAI / cam or pincer morphology) and acetabular labral tear Correct answer.
  3. Complete rupture of the hamstring origin at the ischial tuberosity
  4. Sacroiliac joint ankylosis in early spondyloarthritis

Explanation

The FADIR test (Flexion, Adduction, Internal Rotation) brings the femoral head-neck junction into direct abutment against the anterior-superior acetabular rim and labrum. A positive test indicates femoroacetabular impingement (FAI) and/or an anterosuperior acetabular labral tear. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 26Neuromusculoskeletal assessment and differential diagnosis

A 58-year-old female presents with lateral hip pain that prevents her from sleeping on that side. On physical examination, she demonstrates marked point tenderness over the facet of the greater trochanter and pain during the Single-Leg Stance test held for 30 seconds. What is the modern evidence-based diagnostic terminology for this presentation?

  1. Primary osteoarthritis of the pubic symphysis
  2. Lumbar disc sequestration at L1-L2
  3. Greater Trochanteric Pain Syndrome (GTPS), predominantly gluteus medius/minimus tendinopathy with or without secondary bursitis Correct answer.
  4. Isolated iliopectineal bursitis

Explanation

Historical 'trochanteric bursitis' is now recognized in musculoskeletal medicine as Greater Trochanteric Pain Syndrome (GTPS). High-resolution ultrasound and MRI studies show that the underlying primary pathology in the vast majority of patients is insertional tendinopathy or partial tearing of the gluteus medius and/or minimus tendons, with bursal inflammation being secondary. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 27Neuromusculoskeletal assessment and differential diagnosis

During an orthopedic knee evaluation, the examiner asks the patient to stand on the symptomatic leg with the knee flexed to 20° and actively rotate the femur on the tibia internally and externally three times. Reproduction of joint line pain and catching indicates a positive test. What is the name of this diagnostic test?

  1. Lachman test
  2. Apley distraction test
  3. Godfrey sag sign
  4. Thessaly test (for meniscal tear) Correct answer.

Explanation

The Thessaly test is a dynamic weight-bearing test performed at 5° and 20° of knee flexion that creates rotational and axial compressive loads across the medial and lateral menisci. Karachalios et al. demonstrated that the Thessaly test at 20° flexion has high diagnostic accuracy (sensitivity ~89%, specificity ~97%) for detecting meniscal tears. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 28Neuromusculoskeletal assessment and differential diagnosis

A 44-year-old postal delivery worker presents with burning pain and tingling in the sole of his foot, especially after prolonged standing. Percussion posterior to the medial malleolus elicits tingling radiating into the plantar surface of the foot (positive Tinel sign). What is the diagnosis?

  1. Plantar fasciitis with calcaneal spur
  2. Tarsal tunnel syndrome (compression of the posterior tibial nerve under the flexor retinaculum) Correct answer.
  3. Achilles tendon rupture
  4. S1 radiculopathy with absent patellar reflex

Explanation

Tarsal tunnel syndrome is an entrapment neuropathy of the posterior tibial nerve (or its medial/lateral plantar and calcaneal branches) within the fibro-osseous tarsal tunnel beneath the flexor retinaculum posterior and inferior to the medial malleolus. Hallmark signs include burning plantar paresthesias, pain exacerbated by weight bearing/eversion, and a positive Tinel sign retromalleolarly. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 29Neuromusculoskeletal assessment and differential diagnosis

A 36-year-old female runner complains of sharp, burning pain in the ball of her forefoot radiating to the 3rd and 4th toes, describing it as 'walking on a pebble inside her shoe.' During physical exam, simultaneous transverse compression of the metatarsal heads with direct interdigital plantar pressure produces a palpable and audible click with sharp pain reproduction (Mulder sign). What is the diagnosis?

  1. Freiberg infraction of the 2nd metatarsal head
  2. Stress fracture of the 5th metatarsal base (Jones fracture)
  3. Morton interdigital neuroma (perineural fibrosis of the 3rd common digital nerve) Correct answer.
  4. Gouty arthritis of the 1st metatarsophalangeal joint

Explanation

Morton neuroma is a benign non-neoplastic perineural fibroma and degeneration of the plantar digital nerve, occurring most commonly in the third web space between the 3rd and 4th metatarsal heads. Mulder sign (transverse metatarsal squeeze producing a click as the enlarged nerve is subluxated between the metatarsal heads) is clinically diagnostic. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 30Neuromusculoskeletal assessment and differential diagnosis

A 40-year-old mechanic presents with chronic lateral forearm pain that has failed standard tennis elbow treatments. On examination, maximum point tenderness is located 3 to 4 cm distal to the lateral epicondyle over the mobile wad of muscles, and pain is provoked by resisted middle finger extension and resisted forearm supination with the elbow extended. What condition is present?

  1. Medial epicondylalgia (golfer's elbow)
  2. Pronator teres syndrome
  3. Biceps brachii distal tendon rupture
  4. Radial tunnel syndrome (compression of the posterior interosseous nerve / deep branch of radial nerve) Correct answer.

Explanation

Radial tunnel syndrome involves entrapment or irritation of the posterior interosseous nerve (PIN / deep motor branch of the radial nerve) without overt motor palsy. Unlike lateral epicondylalgia (where tenderness is directly over the lateral epicondyle and common extensor origin), radial tunnel tenderness is localized 3–4 cm distal to the epicondyle over the radial tunnel (arcade of Frohse), with pain exacerbated by resisted extension of the 3rd digit and resisted supination. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 31Neuromusculoskeletal assessment and differential diagnosis

In the assessment of patients with suspected cervicogenic headache or upper cervical dysfunction, what is the primary diagnostic utility of the Cervical Flexion-Rotation Test (FRT)?

  1. To specifically evaluate mobility and pain provocation at the C1–C2 (atlantoaxial) motion segment Correct answer.
  2. To measure thoracic expansion during forced vital capacity
  3. To assess the integrity of the anterior talofibular ligament
  4. To evaluate lumbar disc herniation in the sitting position

Explanation

The Cervical Flexion-Rotation Test (FRT) is a validated physical examination test where the cervical spine is placed into full passive end-range flexion (relaxing subaxial joints) and then passively rotated left and right. This selectively isolates rotation to the C1–C2 atlantoaxial motion segment (which accounts for ~50% of total cervical rotation). A restriction >10° compared to the opposite side or total range <32° indicates C1–C2 dysfunction and cervicogenic headache etiology. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 32Spinal biomechanics, manual-care evidence and limits

In Manohar Panjabi's classic conceptual model of spinal stability, what constitutes the 'neutral zone' (NZ), and how does early degenerative disc disease alter it?

  1. The NZ is the extreme physiological limit of range of motion, and it decreases during early degeneration
  2. The NZ is the zone where only active muscle contraction stabilizes the spine, and it disappears in osteoarthritis
  3. The NZ represents the osseous boundary of the spinal canal, which narrows during disc herniation
  4. The NZ is the region of intervertebral motion around the neutral posture where movement occurs with minimal internal resistance, and it widens significantly with early disc degeneration Correct answer.

Explanation

Panjabi’s neutral-zone concept describes relatively low passive resistance around a reference position. Degenerative changes can alter it, including increasing motion in some early models. This is not a direct universal measurement of symptoms or proof that every degenerative segment is unstable and needs manipulation.

Question 33Spinal biomechanics, manual-care evidence and limits

Which of the following conditions represents an ABSOLUTE contraindication to high-velocity, low-amplitude (HVLA) thrust manipulation of the involved spinal segment?

  1. Active vertebral osteomyelitis or spondylodiscitis with endplate destruction Correct answer.
  2. Chronic mild myofascial trigger point pain in the paraspinal musculature
  3. Asymptomatic facet joint arthrosis without neurological deficit
  4. Postural thoracic hyperkyphosis in an otherwise healthy 25-year-old athlete

Explanation

Active infectious processes of the spine, such as spondylodiscitis, epidural abscess, or vertebral osteomyelitis, cause severe structural weakening of the bone and disc matrix; applying mechanical thrust forces carries a catastrophic risk of pathological collapse, spinal cord compression, and dissemination of infection. Mild myofascial pain, asymptomatic arthrosis, and postural kyphosis are non-contraindicated conditions commonly managed conservatively. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 34Spinal biomechanics, manual-care evidence and limits

During physiological sacroiliac joint 'nutation' (sacral flexion), which movement of the sacral base relative to the ilium occurs, and which ligamentous complex is primarily placed under tension?

  1. The sacral base moves posterior-superior relative to the ilium, tensioning the long posterior sacroiliac ligament
  2. The sacral base tilts anterior-inferior into the pelvic basin, placing the sacrotuberous, sacrospinous, and interosseous sacroiliac ligaments under tension Correct answer.
  3. The sacral base translates purely lateral by 15 mm, relaxing all pelvic ligaments
  4. The ilium rotates anteriorly while the sacral apex moves anteriorly, tensioning the inguinal ligament

Explanation

Nutation (sacral flexion) involves the anterior-inferior tilting and translation of the sacral base relative to the ilium, with posterior movement of the sacral apex. This movement is the close-packed, inherently stable position of the pelvis (form closure) and increases tension across the sacrotuberous, sacrospinous, and interosseous ligaments. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 35Spinal biomechanics, manual-care evidence and limits

A 42-year-old office worker presents with acute low back pain and radicular aching radiating into the right buttock and posterior thigh. During repeated movement testing, repetitive standing lumbar extension causes the distal thigh pain to abolish and retreat into the midline low back. According to Mechanical Diagnosis and Therapy (MDT / McKenzie), what does this clinical response signify?

  1. Peripheralization, indicating worsening annular displacement that requires immediate surgical decompression
  2. The centralization phenomenon, indicating a directional preference for extension that carries a favorable conservative prognosis Correct answer.
  3. Spinal stenosis neurogenic claudication requiring permanent flexion immobilization
  4. A false-positive dural tension test indicative of non-organic illness behavior

Explanation

Centralization describes the progressive abolition of distal radicular symptoms toward the spinal midline in response to specific repeated movements or sustained postures. Centralization indicates a directional preference (in this case, extension) and is one of the strongest validated clinical predictors of successful conservative management and discogenic pain resolution. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 36Spinal biomechanics, manual-care evidence and limits

What are the primary anatomical restraints and mechanical roles of the alar ligaments and transverse ligament of the atlas at the craniovertebral junction?

  1. The alar ligaments prevent anterior atlas translation, while the transverse ligament restricts pure axial rotation
  2. The alar ligaments limit excessive contralateral axial rotation and lateral flexion of the head-C1 complex, while the transverse ligament prevents anterior displacement of the atlas (C1) on the axis (C2) Correct answer.
  3. Both ligaments function exclusively to prevent hyperextension of the lower cervical spine
  4. The transverse ligament connects C1 to the clavicle to stabilize the brachial plexus

Explanation

The strong transverse ligament of the atlas arches across the posterior aspect of the dens, holding the odontoid process firmly against the anterior arch of C1 and preventing anterior subluxation. The paired alar ligaments originate from the sides of the dens and insert onto the medial margins of the occipital condyles, acting as check-ligaments that limit contralateral axial rotation and lateral bending of the craniocervical complex. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 37Imaging selection, pattern recognition and uncertainty

In the stated lumbar-disc nomenclature framework, which listed geometric relationship is one criterion distinguishing an extrusion from a protrusion, rather than the complete definition covering every possible plane or continuity pattern?

  1. In an extrusion, the maximum dimension of the displaced disc material in any plane is greater than the width of the base of the disc material at the disc space of origin Correct answer.
  2. In an extrusion, the disc material extends around more than 50% of the entire vertebral circumference
  3. In a protrusion, the disc fragment has completely separated from the parent disc and migrated 10 cm away
  4. There is no standardized radiological distinction between protrusion and extrusion

Explanation

An extrusion can have displaced material whose dimension exceeds the base width in the relevant plane, and continuity is another relevant aspect of the full nomenclature. Interpret the complete imaging definition rather than treating one geometric sentence as every possible case. The label does not by itself establish symptoms or treatment need.

Question 38Imaging selection, pattern recognition and uncertainty

What anatomical structure is fractured in a classic 'Hangman fracture' (traumatic spondylolisthesis of the axis / C2)?

  1. Bilateral fracture through the neural arch / pars interarticularis (pedicles) of the axis (C2) Correct answer.
  2. Isolated avulsion fracture of the anterior tubercle of C1
  3. Complete transverse fracture through the apex of the odontoid process
  4. Vertical split fracture of the sternal manubrium

Explanation

A Hangman fracture (traumatic spondylolisthesis of C2) is characterized by bilateral fractures through the pars interarticularis (isthmus) or pedicles of the axis (C2 vertebra), typically resulting from high-energy hyperextension and axial loading (such as motor vehicle collisions or hanging). Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 39Imaging selection, pattern recognition and uncertainty

Which listed name describes a classic spinous-process avulsion fracture in the supplied shoveling mechanism, with complete assessment still needed before declaring an actual injury stable?

  1. Teardrop extension fracture
  2. Clay-shoveler fracture Correct answer.
  3. Chance fracture
  4. Burst fracture of C7

Explanation

A Clay-shoveler fracture is an avulsion fracture of the spinous process of a lower cervical or upper thoracic vertebra (most commonly C7, followed by C6 and T1) caused by forceful contraction of the trapezius and rhomboid musculature or direct trauma. Because it involves only the posterior spinous process without canal compromise or anterior column disruption, it is an inherently stable fracture. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 40Imaging selection, pattern recognition and uncertainty

Which combination of magnetic resonance imaging (MRI) features most strongly distinguishes a malignant pathological vertebral compression fracture (e.g., metastatic carcinoma or myeloma) from a benign acute osteoporotic compression fracture?

  1. Benign fractures always involve the entire pedicle with a soft tissue mass extending into the spinal canal
  2. Malignant fractures show complete preservation of normal T1 fatty bone marrow signal throughout the entire vertebral body
  3. Malignant fractures typically show convex bulging of the posterior vertebral cortex, involvement of the pedicle/posterior elements, complete replacement of normal marrow signal, and an associated epidural/paraspinal soft-tissue mass Correct answer.
  4. Both benign and malignant fractures have identical MRI findings and cannot be distinguished without open biopsy

Explanation

On spinal MRI, signs favoring a malignant pathological fracture over a benign osteoporotic fracture include: convex posterior vertebral contour bulging into the spinal canal, diffuse complete T1 signal replacement of the marrow, involvement of the pedicles and posterior elements, and presence of an associated epidural or paraspinal soft-tissue mass. Benign osteoporotic fractures typically show a retropulsed bone fragment, preserved fatty marrow signal in unaffected portions of the body, and horizontal band-like edema. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 41Imaging selection, pattern recognition and uncertainty

A 64-year-old man with type 2 diabetes presents with thoracic stiffness. Thoracic radiographs demonstrate flowing ossification along the anterolateral aspect of five contiguous vertebral bodies, with preservation of disc heights and no erosion or fusion of the sacroiliac or facet joints. What is the diagnosis according to Resnick's criteria?

  1. Ankylosing spondylitis with marginal syndesmophytes
  2. Diffuse Idiopathic Skeletal Hyperostosis (DISH / Forestier disease) Correct answer.
  3. Pyogenic bacterial osteomyelitis
  4. Scheuermann disease with multiple Schmorl nodes

Explanation

Resnick and Niwayama's radiographic diagnostic criteria for DISH (Diffuse Idiopathic Skeletal Hyperostosis) require: 1) flowing calcification/ossification along the anterolateral aspects of at least 4 contiguous vertebral bodies; 2) relative preservation of intervertebral disc height without prominent degenerative changes; and 3) absence of apophyseal joint bony ankylosis or sacroiliac joint erosions/intra-articular fusion (which rules out ankylosing spondylitis). Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 42Imaging selection, pattern recognition and uncertainty

Under the Swiss Federal Radiation Protection Ordinance (Strahlenschutzverordnung, StSV), what core radiation protection principle mandates that all diagnostic X-ray exposures must be kept as low as reasonably achievable, taking into account economic and societal factors?

  1. The Maximum Permissible Dose Acceleration (MPDA) principle
  2. The Fixed Linear Dose Ratio (FLDR) mandate
  3. The Universal Diagnostic Threshold (UDT) guideline
  4. The ALARA principle (As Low As Reasonably Achievable / Optimierungsgebot) Correct answer.

Explanation

The ALARA principle ('As Low As Reasonably Achievable'), codified in Swiss radiation protection legislation (StSV / BAG guidelines), requires that all medical and chiropractic radiation exposures be justified (clinical indication) and optimized (using proper collimation, filtration, digital exposure parameters, sensitive detectors, and protective gonadal shielding) to deliver the minimal dose necessary to achieve diagnostic image quality. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 43Imaging selection, pattern recognition and uncertainty

In the Canadian C-Spine Rule, which of the following clinical presentations in an alert, stable trauma patient is considered a 'High-Risk Factor' that mandates cervical spine radiography without assessing range of motion?

  1. Age 65 years or older, dangerous trauma mechanism (e.g., fall from >1 meter/5 stairs, axial load to head), or paresthesias in the extremities Correct answer.
  2. Simple rear-end motor vehicle collision at low speed
  3. Delayed onset of neck pain (>2 hours post-injury)
  4. Patient able to actively rotate the neck 45 degrees bilaterally in the emergency setting

Explanation

The Canadian C-Spine Rule identifies three mandatory high-risk criteria that mandate immediate cervical radiography: 1) age ≥ 65 years; 2) dangerous mechanism of injury (fall from elevation ≥ 1 m / 5 stairs, axial load to head, high-speed rollover MVC, bicycle collision); or 3) presence of paresthesias in the extremities. If any high-risk factor is present, imaging is required immediately. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 44Imaging selection, pattern recognition and uncertainty

For an appropriate acute ankle injury with pain in the malleolar zone, which listed additional findings meet the Ottawa ankle-rule imaging criteria, with the rule’s actual inclusion conditions still applicable?

  1. In any patient who has mild ecchymosis over the anterior shin with normal gait
  2. If there is bone tenderness along the posterior 6 cm of the lateral malleolus or medial malleolus, OR an inability to bear weight for 4 steps both immediately and in the clinic Correct answer.
  3. Only if there is complete sensory numbness of the femoral nerve
  4. Radiographs are mandatory for all ankle sprains regardless of physical examination findings

Explanation

The Ottawa Ankle Rules state that an ankle radiographic series is required only if there is pain in the malleolar zone AND any of the following: 1) bone tenderness along the posterior 6 cm of the posterior edge or tip of the lateral malleolus; 2) bone tenderness along the posterior 6 cm of the posterior edge or tip of the medial malleolus; or 3) inability to bear weight both immediately after injury and in the examination room for 4 steps. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 45Neurological and musculoskeletal danger signs

A 71-year-old male smoker with hypertension presents with deep, boring low back and flank pain that is unaffected by spinal motion or posture. Abdominal palpation reveals a prominent pulsatile, expansile mass superior to the umbilicus. What vascular condition must be immediately evaluated?

  1. Abdominal Aortic Aneurysm (AAA) Correct answer.
  2. Acute lumbar facet joint arthrosis
  3. Right-sided psoas muscle strain
  4. Idiopathic coccydynia

Explanation

An Abdominal Aortic Aneurysm (AAA) frequently mimics mechanical low back pain. In an older patient with cardiovascular risk factors (smoking, hypertension), deep boring pain unrelated to musculoskeletal activity combined with a pulsatile, expansile epigastric/umbilical mass is a critical red flag for expanding or leaking AAA, requiring emergency abdominal ultrasound or CT angiography. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 46Neurological and musculoskeletal danger signs

A 59-year-old diabetic patient with a history of recent hemodialysis catheter placement presents with severe localized thoracic spine pain, low-grade fever (38.2°C), elevated CRP (85 mg/L), and rapidly progressive lower limb weakness. What is the most likely diagnosis?

  1. Thoracic disc herniation with benign intercostal neuralgia
  2. Spinal epidural abscess (SEA) Correct answer.
  3. Polymyalgia rheumatica
  4. Postural thoracic strain

Explanation

The classic clinical triad of Spinal Epidural Abscess (SEA) consists of: 1) severe localized spinal pain; 2) fever/systemic illness; and 3) progressive neurological deficits (radiculopathy, weakness, bowel/bladder dysfunction). Risk factors include diabetes, IV drug use, indwelling vascular catheters, and spinal procedures. Elevated inflammatory markers (CRP/ESR) and urgent gadolinium-enhanced MRI are mandatory to prevent irreversible paraplegia. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 47Neurological and musculoskeletal danger signs

A 62-year-old chronic smoker presents with unremitting right shoulder and medial arm pain radiating to the 4th and 5th digits (C8–T1 distribution), accompanied by right-sided ptosis, miosis, and anhidrosis (Horner syndrome), and visible wasting of the intrinsic hand muscles. What is the underlying diagnosis?

  1. Adhesive capsulitis of the shoulder with secondary ulnar neuropathy
  2. C5–C6 acute disc extrusion with nerve root avulsion
  3. Pancoast tumor (superior pulmonary sulcus bronchogenic carcinoma) invading the brachial plexus and inferior cervical sympathetic ganglion Correct answer.
  4. Thoracic outlet syndrome caused by an anomalous anterior scalene muscle

Explanation

A Pancoast tumor (superior sulcus non-small cell lung carcinoma) arises in the apex of the lung and directly invades surrounding structures, including the lower trunk of the brachial plexus (C8–T1 distribution pain, intrinsic hand muscle atrophy) and the stellate / cervical sympathetic ganglion (causing classic Horner syndrome: ptosis, miosis, anhidrosis). Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 48Neurological and musculoskeletal danger signs

A 67-year-old patient presents with generalized back pain, normocytic anemia, fatigue, and mild renal impairment. Plain radiographs of the skull and pelvis demonstrate multiple well-defined, 'punched-out' osteolytic bone lesions without any surrounding sclerotic rim. What hematological malignancy is suspected?

  1. Osteosarcoma
  2. Paget disease of bone (osteitis deformans)
  3. Ankylosing spondylitis
  4. Multiple myeloma (plasma cell dyscrasia) Correct answer.

Explanation

Multiple myeloma is a clonal plasma cell neoplasm presenting with the 'CRAB' criteria: hyperCalcemia, Renal insufficiency, Anemia, and Bone lesions. On plain radiographs, extensive osteoclastic activation produces characteristic punched-out, purely osteolytic radiolucencies without reactive sclerotic margins in the skull, spine, ribs, and pelvis. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 49Neurological and musculoskeletal danger signs

A 27-year-old man presents with a 9-month history of insidious buttock and low back pain. The pain is worst in the early morning, accompanied by stiffness lasting >45 minutes, improves with physical exercise but not with rest, and wakes him up during the second half of the night. What inflammatory condition is most likely?

  1. Axial spondyloarthritis / Ankylosing Spondylitis (AS) Correct answer.
  2. Degenerative lumbar facet joint arthrosis
  3. Acute L5–S1 disc prolapse with sciatica
  4. Spondylolisthesis Grade 1

Explanation

This is the textbook clinical presentation of inflammatory back pain (ASAS criteria for axial spondyloarthritis): age of onset < 45 years, insidious onset, duration ≥ 3 months, prominent morning stiffness (>30–45 minutes), improvement with exercise, no improvement with rest, and night pain (especially early morning awakening). Sacroiliac MRI and HLA-B27 testing are standard diagnostic investigations. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.

Question 50Neurological and musculoskeletal danger signs

In a patient with long-standing seropositive Rheumatoid Arthritis (RA), what is the most critical cervical spine complication that represents an absolute contraindication to high-velocity manual manipulation?

  1. Isolated calcification of the stylohyoid ligament
  2. Synovial pannus proliferation causing erosion of the transverse ligament and dens, leading to Atlantoaxial Subluxation (AAS) and potential brainstem/spinal cord compression Correct answer.
  3. Idiopathic hypertrophy of the trapezius muscle
  4. Unilateral styloid process elongation (Eagle syndrome)

Explanation

In rheumatoid arthritis, chronic synovial inflammation (pannus) frequently targets the synovial joints of the craniocervical junction (atlanto-odontoid and atlantoaxial facet joints), destroying the transverse atlantal ligament and the dens. This causes atlantoaxial subluxation (ADI > 3 mm), cranial settling (basilar invagination), and high cervical myelopathy. HVLA cervical manipulation is strictly contraindicated. Interpret this finding or framework in its actual clinical and jurisdictional context. It does not supply a universal diagnosis, procedural setting, insurance entitlement or permission to delay urgent referral.