Bilateral total knee arthroplasty in a patient with bilateral knee lipoma arborescens

Lipoma arborescens (LA) is an uncommon intra-articular tumor of the synovium that can affect any joint in the body. A few cases of bilateral knee LA with osteoarthritis (OA) have been studied in the literature. We report the first patient with bilateral knee LA associated with advanced OA changes, who was operated upon with staged bilateral total knee replacement (TKR). Our case was complicated by immediate postoperative hematoma and wound complications on both sides. We describe the possible postoperative challenges that we encountered after TKR for knee OA combined with LA.