Patellar Instability — MPFL Reconstruction
Patellar instability often due to MPFL rupture after lateral patellar dislocation. Risk factors: trochlear dysplasia, patella alta, increased TT-TG distance. Clinical: recurrent dislocation, apprehension sign, medial tenderness. Imaging: MRI confirms MPFL injury, evaluates trochlear morphology; CT for TT-TG. Treatment: MPFL reconstruction using hamstring autograft; correct bony factors if severe.
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2Practised by MCQ
10What is the primary function of the medial patellofemoral ligament (MPFL)?
mcqWhich imaging modality is best used to confirm an MPFL tear?
mcqWhich of the following is a key anatomical risk factor for recurrent patellar dislocation?
mcqIn MPFL reconstruction, what is the ideal graft choice for minimizing donor site morbidity?
mcqWhat is the recommended distance for TT-TG (tibial tuberosity-trochlear groove) to indicate surgical intervent...
mcqThe MPFL provides its greatest restraining force during which range of knee flexion?
mcqWhat is the most critical step in MPFL reconstruction regarding tunnel placement?
mcqWhich of the following is NOT an indication for MPFL reconstruction?
mcqThe VMO (vastus medialis obliquus) contributes to patellar stability by:
mcqWhat is the primary goal of MPFL reconstruction?