Commonest source of dissatisfaction after TKA. Includes anterior knee pain, maltracking, subluxation/dislocation, fracture, loosening of patellar component. Risk factors: malrotation of femoral/tibial components, improper patellar preparation, soft tissue imbalance. Investigation: clinical exam, skyline view radiographs, CT for malrotation. Management: physiotherapy, lateral release, component revision, patellar resurfacing as indicated.
What is the most common source of dissatisfaction after total knee arthroplasty (TKA)?
Which of the following is a risk factor for patellar maltracking in TKA?
What is the purpose of the 'no-thumb test' during intraoperative assessment in TKA?
Which imaging modality is most useful for evaluating component malrotation after TKA?
What is the normal tibial tubercle-to-trochlear groove (TT-TG) distance in TKA?
Which intraoperative maneuver can help correct lateral patellar maltracking?
What is the main complication associated with aggressive lateral release during TKA?
If persistent patellar maltracking occurs postoperatively, what is the first step in management?
Which of the following is NOT a complication of patellofemoral joint issues after TKA?
What is the primary goal of patellar resurfacing in TKA?
