2023年8月18日 · Lateral patellar dislocation refers to lateral displacement followed by dislocation of the patella due to disruptive changes to the medial patellar retinaculum.

2024年5月29日 · In the acute and subacute setting MRI displays features of lateral patellar dislocation as: knee joint effusion. medial patellofemoral ligament tear. bone contusions or …

The patella has dislocated laterally. This is often a transient phenomenon with spontaneous reduction before the patient attends the ED. MRI can show damage to the medial retinaculum …

2024年7月20日 · The medial and lateral patellar retinaculum, which are condensations of fascia rather than true ligaments, attach the patella margins to surrounding fascia. The medial …

2024年6月19日 · The "pucker" or "dimple" sign is pathognomonic of a posterolateral knee dislocation. It is usually located at the anteromedial distal thigh and is due to soft tissue …

Transient lateral patellar dislocation injury, with fractures of the anterolateral aspect of the lateral femoral condyle and osteochondral fractures of the medial patellar facet. No patellar alta or …

2023年10月20日 · The tibial tuberosity to trochlear groove (TT-TG) distance is used to guide the treatment of patellofemoral instability. It can be accurately measured on both CT and MRI …

Severe osteo-arthritic changes of the patella-femoral and tibio-femoral articulations in the form of marginal osteophytes, narrowing of tibio-femoral articulation and minimal subchondral bone …

2023年7月6日 · Patella alta, or a high-riding patella, describes a situation where the position of the patella is considered high. It may be idiopathic or may result secondary to a patellar …

2022年4月15日 · Patella baja, also known as patella infera, is an abnormally low lying patella, which is associated with restricted range of motion, crepitations, and retropatellar pain. If …