In clinical experience, patients complaining of knee joint pain which is not belong to the category of well documented causative diseases, such as rupture of menisci, collateral ligaments and so forth, have-been encountered,
Since the report of Mayeda´s chords cavi articularis genu in 1918, internal derangement of knee due-to rupture of plica synovialis has been presented from time to time.
Numerous nomenclatures have been offered and various histologic and clinicopathologic features have-been observed.
Majority of uncomplicated plica synovialis are asymptomatic and respond well to conservative treatment, whereas in complicated cases operation is often inevitable.
Here, a symptomatic case, due to rupture of plica synovialis mediopatellaris which was hard to differentiate from rupture of meniscus in clinical aspect and on operation field is reported with available references.
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