Patellar Dislocation — Acute
Most common acute dislocation of knee; lateral displacement of patella. Mechanism: valgus stress + external rotation with knee flexion. Clinical: sudden giving way, patella displaced laterally, hemarthrosis. Imaging: X-ray for osteochondral fracture; MRI for MPFL tear, loose bodies. Treatment: reduction + immobilization, physiotherapy; surgery if recurrent or osteochondral fracture.
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10What is the most common direction of patellar dislocation in acute cases?
mcqWhat is the primary static restraint to lateral patellar displacement?
mcqWhich imaging modality is most useful for assessing a suspected MPFL tear after an acute patellar dislocation?
mcqWhat is the typical mechanism of injury for an acute patellar dislocation?
mcqWhat is the first-line treatment for an acute patellar dislocation?
mcqWhat percentage of first-time patellar dislocators are likely to experience a recurrence?
mcqWhat anatomical feature is a significant risk factor for recurrent patellar dislocation?
mcqWhich examination finding is most characteristic of an acute patellar dislocation?
mcqWhen assessing the TT-TG distance, what measurement is considered abnormal?
mcqWhich of the following is a common symptom reported by patients after an acute patellar dislocation?