期刊
JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH
卷 17, 期 1, 页码 -出版社
BMC
DOI: 10.1186/s13018-022-02934-8
关键词
Medial opening-wedge high tibial osteotomy; Absorbable implants; Medial compartment osteoarthritis; Knee; Age factors; Kellgren-Lawrence grade
类别
资金
- National Natural Science Foundation of China [31802022]
Spacer-type MOWHTO is an effective treatment for osteoarthritis with varus deformity. Age and K-L grade are prognostic factors for spacer-type MOWHTO.
Background To identify medial open-wedge high tibial osteotomy (MOWHTO) prognostic factors with wedge-shaped spacer implantation (spacer-type MOWHTO) for varus medial compartment knee osteoarthritis. Methods Patients who underwent spacer-type MOWHTO between August 2018 and September 2019 were prospectively enrolled in this study. Patients were divided into effective group and invalid group based on the Western Ontario and McMasters University Osteoarthritis Index (WOMAC) score one year postoperatively. The variables assessed at baseline and one year postoperatively including age, sex, body mass index (BMI), Kellgren-Lawrence (K-L) grade, hip-knee-ankle angle (HKAA), medial proximal tibial angle (MPTA), posterior tibial slope angle (PTSA), Blackburn-Peel index (BPI), duration of symptoms, and WOMAC score were compared. Prognostic factors were analyzed using logistic regression, and the corresponding odds ratios were also calculated. Results A total of 104 patients were enrolled in the study protocol at one year postoperatively. The WOMAC score decreased from 72.39 +/- 12.95 at baseline to 20.06 +/- 12.96 at one year postoperatively. Univariate analysis revealed that the significant predictors of the WOMAC score were age > 70 years, BMI > 30 kg/m(2), K-L grade IV, and pre-HKAA > 10 degrees (P < 0.1 for all). Multivariable logistic regression analysis revealed that age > 70 (OR = 4.861) and K-L grade IV (OR = 6.590) were significantly associated with the higher WOMAC score at one year postoperatively. Conclusions Spacer-type MOWHTO is an effective treatment for osteoarthritis with varus deformity. The prognostic factors for spacer-type MOWHTO are age and K-L grade.
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