Figure 1
From: Autologous chondrocyte implantation for rheumatoid arthritis of the knee: a case report
(a) Pre-operatively, both knee standing anteroposterior radiographs show lateral joint space narrowing and a 13° valgus deformity. Arthroscopic findings of the (b) trochlea and (c) lateral condyle show severe arthritic change. (d) Both knee standing anteroposterior radiographs obtained 12 months after the autologous chondrocyte implantation surgery show widening of the lateral joint space and improvement in the valgus deformity to 7°.