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J Korean Knee Soc. 1998 Dec;10(2):198-201. Korean. Original Article.
Lim HC , Hong JS , Kim TH , Min KK .

The authors have performed arthroscopic management in 126 knees of 121 patients with internal derangement of knee(IDK) from March, 1995 to June, 1997 at Guro hospital. Among them, there were 41 knees of 39 patients who had complained the extension block of knee joint which must be differentiated from flexion contracture and extension lag. As a result of arthroscopy, the associated diseases with extension block were lateral discoid meniscus tear in 13 knees, bucket handle tear in 9 knees, hypertrophic infrapatellar plica in 7 knees, Hoffas disease in 5 knees, ACL rupture in 3 knees, intra-articular loose bodies in 2 knees, and cyclops lesion in 2 knees. In conclusion, detailed historical taking and physical examination followed by arthroscopic management are very useful methods to confirm the pathology and making complete treatment of IDK causing extension block.

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