Abstract
The patellofemoral articulation in total knee arthroplasty can give rise to postoperative complications, such as patellar fracture, subluxation, or dislocation. The accumulation of hypertrophic fibrous tissue at the superior margin of the patellar button can give rise to catching or “clunking” of the extensor mechanism. Open surgical excision of this mass is successful in alleviating symptoms but runs the risk of infection and wound complications and delays postoperative mobilization. Arthroscopic resection with motorized instrumentation is highly successful, offers less risk of infection, and allows rapid postoperative mobilization.
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