Painful locking of the knee due to bucket handle tear of

【Abstract】 A case of swelling and anterior painful knee due to tear of mediopatellar plica is reported. The patient also felt clunk of the patellofemoral joint and knee locking. Under arthroscopic examination, a thick and fibrous plica was found medial to patellar, and a bucket tear along the p...

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Bibliographic Details
Main Authors: HE Rui, YANG Liu, GUO Lin
Format: Article
Language:English
Published: Elsevier 2011-04-01
Series:Chinese Journal of Traumatology
Online Access:http://www.cjtrauma.com/apps/ojs/index.php/cjt/article/view/70
Description
Summary:【Abstract】 A case of swelling and anterior painful knee due to tear of mediopatellar plica is reported. The patient also felt clunk of the patellofemoral joint and knee locking. Under arthroscopic examination, a thick and fibrous plica was found medial to patellar, and a bucket tear along the plica from medial patellar retinaculum to infrapatellar fat pad. Polarized microscopic examination showed collagen fiber fragment and loss of light reflecting property. Neuroimmunohistology suggested up-regulation of synovial plica innervation in the area around the crack. This may be related to the pain. The bucket tear of mediopatellar plicacaused pain and lock of knee are more common than previously reported. Key words: Knee injuries; Arthroscopy; Patellofemoral joint
ISSN:1008-1275