Knee injury (site of stress on joint and possible cause)
Stress on the joint - was there a varus or valgus stress or rotational force acting through the knee at the time of injury?
- non-contact twisting injuries
- twisting injury of extended knee
- causes include patellar subluxation or dislocation
- particularly the case in patients with patella alta where the patella is abnormally high in relation to the femur
- in this situation the patella is not well engaged in the trochlear groove and is at an increased risk for injury
- in this situation the patella is not well engaged in the trochlear groove and is at an increased risk for injury
- particularly the case in patients with patella alta where the patella is abnormally high in relation to the femur
- causes include patellar subluxation or dislocation
- twisting injury of flexed knee
- causes include meniscus or ACL tear
- causes include meniscus or ACL tear
- twisting injury of extended knee
- blow to the lateral aspect of knee (valgus injury)
- would result in sudden stretching of medial-sided knee structures
- superficial medial collateral ligament most at risk for injury
- superficial medial collateral ligament most at risk for injury
- would result in sudden stretching of medial-sided knee structures
- blow to the medial aspect of knee (varus injury)
- increases stress on the outside of the knee
- possible posterolateral corner injury
- increases stress on the outside of the knee
Reference
- Duong V et al. Evaluation and Treatment of Knee Pain: A Review. JAMA. 2023 Oct 24;330(16):1568-1580
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