Musculoskeletal causes of acute nontraumatic knee pain in active adults*

No acute trauma, but abrupt onset or increase in pain Presence of ligamentous instability strongly suggests traumatic injury and is NOT consistent with the diagnoses listed below Effusion may be present
Anterior knee pain	Medial knee pain	Generalized knee pain	Lateral knee pain	Posterior knee pain
Patellofemoral pain syndrome	Pes anserine bursitis or tendinopathy	Osteoarthritis flare	Iliotibial band syndrome	Ruptured popliteal (Bakers) cyst
Patellar tendinopathy	Degenerative meniscus	Degenerative meniscus	Degenerative meniscus	Semimembranosus-gastrocnemius bursitis
Quadriceps tendinopathy	Medial hamstring tendinopathy or bursitis		Lateral hamstring (biceps femoris) tendinopathy
Prepatellar or infrapatellar bursitis	Medial plica syndrome		Popliteus tendinopathy
Osgood Schlatter or Sinding Larsen Johansson syndrome

Acute pain is generally defined as less than six weeks duration; chronic pain is generally defined as greater than six weeks duration.

*Acute knee pain in an adult without inciting trauma or a history of overuse raises concerns for non-musculoskeletal causes (eg, crystal arthopathy, septic joint) and a more extensive evaluation is often required, particularly if the pain is associated with constitutional symptoms, such as fever.

Graphic 91018 Version 3.0

خرید پکیج

Musculoskeletal causes of acute nontraumatic knee pain in active adults*