Discoid lateral meniscus has been desceibed as a morphologically varable anomaly, and several calssifications have been proposed.
Arthroscopic management of knee joint has many advantages and has become an essential diagnostic porcedure of knee joint lesions. Watanabe et al, classified al discoid menisci, as seen arthroscopically, into three types: (1) complete, (2)
incomplete,
and (3) Wrisberg-ligament type.
The purpose of this paper is to report the arthroscopic classification of discoid meniscus and other types not mentioned in Watanabe classification.
During the period from August 1990 to August 1992, We found and analyzed 46 cases of discoid meniscus in 44 patients.
@ES The results are as follows:
EN 1. Of these 46 discoid meniscus including 2 discoid medial menisci, 21 menisci were classified as complete, 19 menisci as incomplete, 2 menisci as Wrisberg ligament type, and remaining 4 menisci as unusal type which were not belonged to
Watanabe
classification.
2. There were 4 minisci which were unusual to anterior cruciate ligament along entire meartgin and were not belonged to any type of watanabe classification.
We called them continuous type.
3. The age were ranged from 6 to 73 and average age wasd 37.7%.
4. There were 24 men (53%), 21 women (47%), 25 right, 21 left and 2 bilaterallesions. The two bilateral lesions were incomplete lateral discoid lesions.
We suggest that there can be conspecific type of discoid menisci which are not belonged to Watanabe classification.
|