Lateral patellar dislocation

Lateral patellar dislocation of the left knee. Note that the knee is held in approximately 20 degrees of flexion and the patella (arrow) is laterally displaced.

Reproduced with permission from: Silverberg M. Patellar dislocations. In: Greenberg's Text-Atlas of Emergency Medicine, Greenberg MI (Ed), Lippincott Williams & Wilkins, Philadelphia 2005. Copyright © 2003 Lippincott Williams & Wilkins. www.lww.com.

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