Ace Your Ortho Exam: Lower Limb Trauma Structured Oral Examination Question
Key Takeaway
For anyone wondering about Ace Your Ortho Exam: Lower Limb Trauma Structured Oral Examination Question, A structured oral examination question in orthopedics assesses a candidate's ability to diagnose and manage common injuries. For an intracapsular neck of femur fracture in an elderly, independent patient, candidates must identify the injury, evaluate patient comorbidities, and propose surgical management. The preferred approach often involves total hip arthroplasty over hemiarthroplasty for better functional outcomes and survivorship.
A 45-year-old male presents after a high-energy fall, sustaining a posterior wall acetabular fracture with a congruent reduction after closed hip dislocation. Post-reduction radiographs show no incarcerated fragments. How do you assess for stability, and what is your management strategy?
Candidate: I would confirm the reduction with an urgent post-reduction CT scan to ensure no intra-articular fragments. If the hip remains stable on clinical examination and dynamic imaging (like stress views or fluoroscopy under anaesthesia), I would manage this conservatively with protected weight-bearing and restricted range of motion. If it is unstable or demonstrates fragment incarceration, I would proceed to ORIF.
Failing to mention the "stability" assessment. A candidate who assumes the fracture is stable simply because the initial reduction is "congruent" often fails. Examiners look for the mention of dynamic assessment (stress views) to distinguish between a truly stable posterior wall and one that subluxates with flexion.
The candidate must articulate a structured approach: 1. Exclusion of incarcerated fragments: Use of thin-slice CT. 2. Dynamic Stability Assessment: Mentioning stress radiographs (or dynamic fluoroscopy under anaesthetic) at specific ranges of motion. 3. Classification: Briefly acknowledging the posterior wall involvement. 4. Decision Logic: If stable on dynamic testing, non-operative management (protected weight-bearing); if unstable, definitive surgical fixation (ORIF via Kocher-Langenbeck approach).
