Prosthetic Patient Assessment
What assessment must cover
Assessment establishes the baseline against which every later decision is judged. A complete evaluation addresses: medical and surgical history (amputation level, reason for amputation, healing status, comorbidities such as diabetes or vascular disease), residual limb characteristics (length, shape, volume, soft-tissue coverage, bony prominences, scars, skin integrity, sensation, and pain including phantom and neuroma pain), contralateral limb status, joint range of motion and strength, cardiovascular endurance, balance and gait, cognition and learning ability, functional goals, vocational and avocational demands, home and work environment, and psychosocial and financial resources.
Concepts to name
Know the distinction between a transfemoral and transtibial assessment focus: knee stability and ischial containment concerns versus tibial length, tibial crest sensitivity, and the fibular head. Be able to describe volumetric change of a maturing limb and why it drives socket fit decisions. Understand K-levels as a functional classification framework that shapes component selection, and the role of validated outcome measures (e.g., ambulation and balance tools) in documenting function objectively.
Traps
Questions often present a patient with a healing wound, unstable volume, or uncontrolled edema and ask whether to proceed to definitive prosthesis. The correct answer is usually to delay definitive fabrication and manage the limb. Another trap: confusing phantom sensation (normal, expected) with phantom pain (requires evaluation and management). A third: assuming a patient with good limb length automatically has good prosthetic potential without assessing skin, vascular status, and motivation.
Rule of thumb
Assess the limb, the person, and the environment before assessing components. If any of the three is unstable, the plan is premature. Document findings in measurable terms so follow-up can detect change.
Worked example
A patient two weeks post-transtibial amputation has a well-healed incision, mild edema, and wants to walk to church. The correct next step is edema control and a preparatory/interim device with ongoing reassessment, not a definitive carbon-fiber socket - the limb volume is still changing.