ABOHNS Plastic Surgery Within the Head and Neck common mistakes
ABOHNS Plastic Surgery Within the Head and Neck · Understand the traps and how to avoid them.
Choosing a reconstructive ladder option based on the defect's size alone, without first classifying the defect by composition (mucosa, bone, skin, dead space) and recipient vessel status before selecting a flap.
Candidates memorize flap algorithms as size-based flowcharts and then apply them reflexively; the exam deliberately presents defects where the same dimensions demand different flaps because of bone loss, through-and-through anatomy, or irradiated recipient vessels.
What to do instead
For every reconstruction item, write a one-line defect inventory (tissue layers missing, volume needed, need for bone, vessel-depleted neck yes/no) before reading the answer choices, then eliminate options that fail a stated requirement.
Treating all facial fractures as single-bone injuries and missing the associated second fracture or ligamentous injury (e.g., calling a zygomaticomaxillary complex fracture without addressing the orbital floor, or missing a contralateral condyle fracture with a parasymphyseal fracture).
Candidates pattern-match the most visually obvious fracture and stop; the exam tests the known association patterns (mandible symphyseal plus condylar, ZMC plus orbital floor, Le Fort levels, naso-orbitoethmoid with telecanthus) that are easy to overlook under time pressure.
What to do instead
Before answering any facial trauma item, run a fixed checklist: occlusion, orbital floor/globe, nasofrontal duct, zygomatic arch, condyles, and cervical spine; state which associated injury each answer choice would or would not explain.
Selecting free tissue transfer for a head and neck defect without verifying that the patient's comorbidities and prior treatments (irradiation, prior neck dissection, atherosclerosis, diabetes, smoking) permit it, or ignoring that a pedicled regional flap is safer in a vessel-depleted or medically fragile patient.
Candidates equate the most complex reconstruction with the best answer; the exam rewards matching the reconstruction to the patient's physiologic reserve and vascular anatomy rather than to defect complexity alone.
What to do instead
For each flap choice, explicitly name the recipient vessels and the patient factors that threaten them; if the stem mentions prior radiation, prior neck surgery, or severe comorbidity, default to evaluating pedicled and locoregional options first.
Understaging or overstaging a cutaneous malignancy by relying on the biopsy diagnosis without applying the high-risk features (perineural invasion, deep invasion, immunosuppression, ear/lip/scalp location, recurrent disease) that determine margin width and the need for nodal evaluation.
Candidates anchor on the histologic subtype and forget that staging and margin recommendations for head and neck skin cancer depend on a composite of tumor, host, and anatomic factors.
What to do instead
For every cutaneous lesion item, tabulate size, depth, differentiation, perineural/lymphovascular invasion, immunosuppression, recurrence status, and anatomic subunit before choosing margins or nodal workup.
Failing to distinguish congenital craniofacial diagnoses that look similar in infancy (e.g., deformational versus synostotic plagiocephaly, or isolated versus syndromic craniosynostosis) and therefore recommending the wrong timing or type of intervention.
Candidates lump all abnormal head shapes together and skip the discriminating examination findings (ear position, ridging, skull base, extremity or cardiac anomalies) that separate positional from suture-driven deformity.
What to do instead
For each craniofacial item, list the two or three physical findings that separate the leading diagnosis from its mimic, and confirm the answer is consistent with the recommended age window for that specific intervention.
Answering aesthetic facial questions by naming a procedure rather than by diagnosing the underlying anatomic problem (e.g., recommending a skin-only procedure for midface volume loss, or a brow lift for upper eyelid dermatochalasis with normal brow position).
Candidates substitute procedure recall for facial analysis; the exam presents aging or deformity findings and expects the answer to follow from an anatomic diagnosis.
What to do instead
Before choosing an aesthetic option, perform and state a brief facial analysis (skin quality, volume, ptosis, brow position, skeletal support) and eliminate any procedure that does not address the dominant finding.
Ignoring the functional consequences of tumor resection when planning reconstruction, such as oral competence, lip seal, velopharyngeal closure, or tracheostomy dependence, and optimizing only for soft tissue coverage.
Candidates focus on closing the defect and forget that the exam tests functional outcomes, which often determine the correct flap choice (e.g., lip reconstruction technique by defect fraction, palate obturator versus flap).
What to do instead
For each ablative-reconstruction item, state the function at risk (speech, swallow, oral competence, airway) and check that the chosen reconstruction restores it, not just covers it.
Missing perioperative and complication-management details: not recognizing flap compromise signs and their time course, not anticipating airway edema after neck surgery, and not applying venous thromboembolism or antibiotic prophylaxis principles to head and neck patients.
Candidates treat perioperative care as background knowledge and do not rehearse the specific timelines (e.g., arterial versus venous compromise presentation, when to re-explore) that the exam tests as discrete facts.
What to do instead
Build a short table of flap compromise signs by cause and time, airway red flags after neck dissection, and prophylaxis indications; review it before each perioperative item and match the scenario to the table.
Confusing skull base approaches and their associated morbidity (e.g., choosing an approach without accounting for the cranial nerve at risk, CSF leak risk, or need for vascularized reconstruction of the skull base defect).
Candidates learn approaches by name and corridor rather than by the structures exposed and the reconstruction required; the exam links approach choice to specific complications.
What to do instead
For each skull base item, state the approach, the cranial nerves and vessels in the corridor, and the reconstruction (vascularized versus nonvascularized) needed to prevent CSF leak, then select the option consistent with all three.
Managing complications by naming a salvage operation without first identifying the mechanism (infection, hematoma, fistula, flap thrombosis, hardware exposure) and the appropriate initial step before definitive reconstruction.
Candidates jump to the definitive reconstructive answer and skip the staged initial management (drainage, debridement, culture-directed antibiotics, flap monitoring) that the exam often considers the correct next step.
What to do instead
For each complication item, state the mechanism, the immediate stabilizing step, and only then the definitive reconstruction; choose the answer that matches the earliest appropriate action when the stem asks for next step.