Fig. 4A–E.

(A) AP, (B) lateral, and (C) long-leg radiographs of a patient with subsidence of the medial tibial plateau and increased postoperative posterior tibial slope are shown. The patient underwent revision surgery after 18 months from the index surgery owing to persistent pain on the medial side. (D) AP and (E) lateral radiographs show the knee after the revision procedure. The reimplantation was performed with a one-stage procedure using a constrained implant with uncemented stems for the femoral and tibial components. Owing to bone loss on the medial tibial side, a metal augment was used.