Non-union after correction of femoral deformity combined with total knee arthroplasty

AnIn knee arthritis with extra-articular deformity of the femur, total knee arthroplasty becomes more challenging. Simultaneous femoral deformity correction and TKA can be a complex procedure. We present a case in which TKA and femoral osteotomy for varus femoral deformity were performed simultaneously. Non-union in the osteotomy portion occurred after the operation. Teriparatide therapy and low intensity pulsed ultrasound therapy was administered after a diagnosis of non-union. Bony union was partially obtained at 29 months after surgery.