Fractures of the proximal tibial epiphysis are rare, representing less than 3% of all epiphyseal and 1% of all physeal injuries in adolescents. Bilateral injuries are extremely rare. The specific anatomical and histological features of the proximal tibial epiphysis make it vulnerable to a specific fracture pattern that occurs when the tensile force of the quadriceps is greater than the fibrocar...

Avulsion fracture of the tibial tuberosity is an uncommon lesion generally seen in adolescents. Intra-articular lesions combined with a tibial tuberosity fracture reported in the literature are; 3 patellar tendon ruptures, 2 anterior cruciate ligament tears, 2 medial collateral ligament tears, 2 medial meniscus tears, one arcuate ligament tear, and one lateral meniscus tear. In our study, both ...

Lesions in canine stifle joints after previous trochleoplasty surgery were documented. In four clinical cases arthrotomies were performed due to stifle pain after previous trochlear deepening procedures. A small area of hyaline cartilage remained in the groove of the stifles in cases where previous wedge trochleoplasties had been performed. All of the stifles had significant areas of eburnation...

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Patellar luxation is the result of progressive structural abnormalities in the soft and/or skeletal tissues of the dog’s pelvic limbs. There is an alteration of the patella-trochlear groove interaction with negative effects on the stifle stability and extensor mechanism integrity, on the trochlear articular cartilage nutrition and the adequate trochlear depth and length development and maintena...

The thickness of the tibial polyethylene (PE) insert is a critical parameter to ensure optimal soft-tissue balancing in intraoperative decision-making procedure total knee arthroplasty (TKA). However, there paucity information about kinetic response PE variations tibiofemoral (TF) joint, and subsequently, secondary effects on patellofemoral (PF) biomechanics. Therefore, purpose this study was i...

Optimal patellar tracking and component alignment are important in achieving a well-functioning total knee arthroplasty (TKA). The patella is constrained partly by design of the prosthetic trochlear groove, and patellar tracking is governed by a combination of static and dynamic factors. Maltracking may result from excessive or unbalanced tension in the surrounding soft tissues. This article de...

To cite: Maher PJ, Ilgen JS. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/ bcr-2012-007614 DESCRIPTION A 14-year-old man presented to our emergency department with 3 days of progressively worsening right knee pain that was exacerbated by movement. The patient played basketball and had a history of asthma, but he denied any recent trauma or prior knee pain. Systemic...