Treatment of Varus Ankle Osteoarthritis and Instability With a Novel Mortise-Plasty Osteotomy Procedure

Supramalleolar Osteotomy With or Without Fibular Osteotomy for Varus Ankle Arthritis

“…Some authors reported a significant decrease of the TT 4,10,13,18,19 ; however, some did not. 1,12,14,27 Tanaka et al 27 reported that in all patients with a preoperative TT greater than 10 degrees, the joint space did not improve to normal.…”

“…The talar tilt angle was completely corrected postoperatively (from 14.5 to 1.2 degrees), and the tibiocrural angle also was well corrected. ‡References 1,3,4,7,8,10,[12][13][14][15][18][19][20]24,26,27. …”

The role of fibular for supramalleolar osteotomy in treatment of varus ankle arthritis: a biomechanical and clinical study

“…In previous studies, the authors recommended fibular osteotomy as a standard procedure for the treatment of varus ankle OA [2, 12, 16]. However, some studies recommended preserving the fibula in all cases [3, 11, 17, 18]. We based the decision to perform the fibular osteotomy on the pre- and intraoperative evaluation.…”

“…The role of TT in SMOT is highly controversial. Some authors have reported a significant decrease of the TT [4, 7, 8, 11, 17]; however, others have not [3, 12, 15, 19]. Tanaka et al [12] reported that in all patients with a preoperative TT greater than 10°, the joint space did not return to normal.…”

“…Some authors have proposed combined fibular osteotomy for all SMOT patients [2, 12–16], some have suggested that the fibula should always be preserved [3, 11, 17, 18], and some authors have performed fibular osteotomy depending on the conditions [4, 5, 7, 19]. Few studies have focused on the role of the fibula in SMOT.…”