Orthopedic Board Prep: MCQ Practice & Systematic Exam Answering Guide
Key Takeaway
To excel in orthopedic board exams, especially long cases, focus on developing a systematic answering strategy. Utilize practice MCQs to refine your ability to structure responses with clear headings for differential diagnoses, investigations, and management plans. This organized approach ensures comprehensive coverage and significantly optimizes your marks by demonstrating a thorough understanding to examiners.
A 65-year-old patient presents with a history of progressive hip pain and limited range of motion. Examination reveals a fixed flexion deformity and a positive Trendelenburg sign. You are provided with the following radiograph. Describe the findings and outline your management plan.
Candidate: The radiograph shows severe osteoarthritis of the left hip with joint space narrowing, subchondral sclerosis, and osteophyte formation. I would perform a physical exam to assess range of motion and leg length discrepancy. I would recommend a Total Hip Arthroplasty (THA) given the patient's age and clinical symptoms.
The candidate fails to use a systematic reporting structure for the image (ABCDE or similar). They jump straight to surgery without mentioning non-operative management failure, patient optimization, or the informed consent process. They also ignore the "positive Trendelenburg sign" mentioned in the scenario, failing to correlate it with the radiograph (e.g., abductor mechanism deficiency).
Structure the answer: 1. Radiographic Analysis: Systematically describe the joint (Loss of joint space, subchondral sclerosis, osteophytes, cysts, and acetabular/femoral head morphology). 2. Clinical Correlation: Link findings to the Trendelenburg sign (abductor insufficiency vs. pain-related inhibition). 3. Management Plan: - Patient Factors: Assess physiological age, comorbidities (ASA grade), and functional goals. - Non-operative: Explicitly mention that conservative measures (NSAIDs, physiotherapy, mobility aids) have been exhausted. - Surgical Planning: Discuss templating, implant selection (e.g., cemented vs. uncemented), and risk mitigation (DVT prophylaxis, infection control). - Consent: Include a structured discussion on benefits, risks (dislocation, leg length discrepancy, infection, nerve injury), and alternatives.
