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- Title
Faster union rate and better clinical outcomes using autologous bone graft after medial opening wedge high tibial osteotomy.
- Authors
Jung, Woon-Hwa; Takeuchi, Ryohei; Kim, Dong-Hyun; Nag, Ramvilas
- Abstract
<bold>Purpose: </bold>To compare the radiological bone union rate after medial opening wedge high tibial osteotomy (MOW-HTO) and stabilization using a TomoFix™ plate (Synthes, Oberdorf, Switzerland) in three patient groups.<bold>Methods: </bold>Retrospective analysis of 137 knees that underwent MOW-HTO between January 2014 and January 2017 was using a TomoFix™ plate. Osteotomy gaps were filled with β-tricalcium phosphate (β-TCP) (group A), left unfilled (group B), and subject to autologous bone graft and β-TCP (group C). Radiological bone union using simple radiography was determined by a modified version of the Brosset et al. osteotomy filling index. Clinical outcomes were evaluated using the International Knee Documentation Committee (IKDC) and Lysholm score. Statistical analyses using the Chi-square and ANOVA tests were performed between the groups.<bold>Results: </bold>The mean time for radiological bone union was 8.3 ± 3.1 months in group A, 7.2 ± 3.2 in group B and 3.4 ± 1.5 in group C (p = 0.001). There was statistically significant faster bone union in Group C. If the opening distance was more than 10 mm, group A united in 8.6 ± 3.6 months, group B in 8.8 ± 3.4, and group C in 3.5 ± 1.7 (p = 0.001). IKDC and Lysholm knee scores improved significantly (p = 0.004 for IKDC and 0.001 for Lysholm knee scores) in group C when compared to groups A and B at sixth month follow-up. At final follow-up, there was no difference in IKDC and Lysholm knee scores. Less delayed union occurred in group C.<bold>Conclusions: </bold>MOW-HTO with autologous bone graft and β-TCP had the fastest radiological bone union and best clinical scores at 6 month follow-up.<bold>Level Of Evidence: </bold>Retrospective comparative study, Level III.
- Subjects
OSTEOTOMY; PATIENTS; RADIOGRAPHY; KNEE radiography; BONE grafting; KNEE surgery; TIBIA surgery; KNEE diseases; WOUND healing; ORTHOPEDIC implants; BONE substitutes; RETROSPECTIVE studies; SURGICAL complications; TREATMENT effectiveness; AUTOGRAFTS; OSTEOARTHRITIS; TIBIA; PHOSPHATES; KNEE
- Publication
Knee Surgery, Sports Traumatology, Arthroscopy, 2020, Vol 28, Issue 5, p1380
- ISSN
0942-2056
- Publication type
journal article
- DOI
10.1007/s00167-019-05463-w