Purposes:To investigate the MRI diagnosis of discoid lateral meniscus and its concomitant changes.

目的：探讨盘状半月板及其继发病变的磁共振诊断方法和价值。

Purposes : To investigate the MRI diagnosis of discoid lateral meniscus and its concomitant changes.

目的: 探讨盘状半月板及其继发病变的磁共振诊断方法和价值.

Medial meniscus is approached through transverse incisions in both skin and capsule; lateral meniscus through oblique incision in skin and hockey stick incision in capsule.

经皮肤和关节囊的横向切口显露内侧半月板，经皮肤斜行切口和关节囊曲棍球棒状切口显露外侧半月板。

Lateral approaches permit good exposure for complete excision of the lateral meniscus. They do not require division or release of the fibular collateral ligament.

外侧入路可以为外侧半月板全切术提供良好显露，而且不用切断或松解腓侧副韧带。

Conclusion:The incarceration of lateral meniscus and the collapsed bone fragments are two factors which make the reduction of the lateral tibial condyle difficult.

结论：外侧半月板及塌陷骨块嵌顿是导致胫骨平台外髁复位困难的两大因素。