To open the joint posteriorly , make an incision through the capsule posterior to the tibial collateral ligament 于胫侧副韧带后方切开关节囊,从后方显露关节。
To expose the posterior compartment , make a second deep incision posterior to the tibial collateral ligament , from the level of the femoral epicondyle straight distally across the joint line 再在胫侧副韧带后方从股骨内上髁水平垂直向远端跨过关节间隙做深层切口,即可显露关节后室。