v4.1 Fusion X
Common in young females; often after acute lateral dislocation. Risk factors: trochlear dysplasia, patella alta, increased TT-TG distance, ligamentous laxity. Clinical: recurrent dislocation, apprehension sign, medial tenderness. Imaging: MRI shows MPFL injury, chondral damage; CT for TT–TG. Management: conservative after first dislocation; MPFL reconstruction ± tibial tubercle osteotomy for recurrent cases.
Which of the following statements regarding patellofemoral instability is correct?
What is the primary mechanism of injury leading to the first dislocation of the patella?
Which imaging modality is most useful for assessing the MPFL injury in cases of lateral patellar dislocation?
In which of the following scenarios would surgical intervention be considered for patellofemoral instability?
What is the significance of the TT-TG distance in the assessment of patellofemoral instability?
Which of the following is a common clinical sign associated with patellofemoral instability?
What anatomical feature is primarily injured in a lateral patellar dislocation?
Which of the following is NOT a risk factor for recurrent patellar dislocation?
In terms of trochlear dysplasia, which Dejour classification is associated with the highest risk of recurrence?
What is the primary goal of conservative management after a first-time patellar dislocation?