Arthroscopic repair of chronic capsular defect after popliteal cystectomy.

We present an arthroscopic repair technique (all inside suture) for chronic capsular defect of posterolateral space of knee joint developed after previous popliteal cystectomy. We use a transseptal posteromedial viewing portal, and two posterolateral working portals. This procedure can be an alternative to an open repair technique for a posterior capsular defect after open cystectomy.