Fig. 3
A 37-year-old man (case 1) with recurvatum deformity on femur was treated with one-stage TKA and femoral osteotomy using a constrained condylar knee. a Anteroposterior view and lateral view before surgery. b X-ray at the first day after surgery showing an asymmetrical gap. c Long-term X-ray (91 months postoperatively) showing a stable component and no sign of pronounced wear on tibial insert