Knee Surg Relat Res.  2018 Dec;30(4):293-302. 10.5792/ksrr.18.007.

Short-Term Results of Hybrid Closed-Wedge High Tibial Osteotomy: A Case Series with a Minimum 3-Year Follow-up

• Saito H
• Saito K
• Shimada Y
• Yamamura T
• Yamada S
• Sato T
• Nozaka K
• Kijima H
• Miyakoshi

• KMID: 2438109
• DOI: http://doi.org/10.5792/ksrr.18.007

Abstract

PURPOSE
High tibial valgus osteotomy (HTO) is a well-established surgical procedure for patients with medial compartment osteoarthritis (OA) of the knee. The hybrid closed-wedge HTO (CWHTO) procedure permits extensive correction in patients with severe deformities or patellofemoral joint OA. The aim of this study was to report the short-term results in a consecutive series of patients treated with hybrid CWHTO.
MATERIALS AND METHODS
We retrospectively evaluated the clinical outcomes and radiographic parameters in 29 consecutive knees that underwent hybrid CWTHO to correct medial compartment OA at an average follow-up of 52.6 months. Clinical outcomes were assessed using the Lysholm score and knee scoring system of the Japanese Orthopedic Association (JOA). The Kellgren-Lawrence grading system and pre- and postoperative mechanical axis (MA), femorotibial angle (FTA), posterior tibial slope, and patella height were assessed.
RESULTS
The FTA and MA significantly changed from 180.7° to 170.4° and from 22.0° to 60.2°, respectively. No significant differences were observed between the mean pre- and postoperative posterior tibial slope, Insall-Salvati ratio, or Caton-Deschamps index. The postoperative JOA and Lysholm scores significantly improved from 76.7 to 95.8 and from 58.8 to 90.2, respectively.
CONCLUSIONS
Satisfactory outcomes can be achieved with hybrid CWHTO in patients with medial OA.

Keyword

Knee; Osteoarthritis; Osteotomy; Closed-wedge; Hybrid

MeSH Terms

Asian Continental Ancestry Group
Congenital Abnormalities
Follow-Up Studies*
Humans
Knee
Orthopedics
Osteoarthritis
Osteotomy*
Patella
Patellofemoral Joint
Retrospective Studies