Midterm follow-up results of two different types of implants in opening wedge high tibia osteotomy
| Autor: | Jussi Jalkanen, Antti Joukainen, Hannu Miettinen, Simo S. A. Miettinen, Henrik Nyländen, Heikki Kröger |
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| Rok vydání: | 2020 |
| Předmět: |
medicine.medical_specialty
Knee Joint medicine.medical_treatment Osteoarthritis Osteotomy 03 medical and health sciences 0302 clinical medicine medicine Humans Orthopedics and Sports Medicine Survival analysis Retrospective Studies 030222 orthopedics Tibia Proportional hazards model business.industry Tibia osteotomy Retrospective cohort study 030229 sport sciences Osteoarthritis Knee Opening wedge medicine.disease Surgery Implant business Follow-Up Studies |
| Zdroj: | The Knee. 31 |
| ISSN: | 1873-5800 |
| Popis: | Background This retrospective study investigated the midterm results of medial opening wedge high tibia osteotomy, with a monoplanar or a biplanar osteotomy using two types of implant system. Methods Osteotomies were performed on 241 knees (231 patients). The mean follow-up period was 6.0 years (SD 3.0, range 0.2–12.8 years). Two types of implant system were used, a precountered non-locking plate (PP) (n = 74) and a precountered locking plate (LP) (n = 167). A Kaplan-Meier cumulative survival curve and a Cox regression model were used to analyse and revise survival and risk factors. Results Cumulative survival estimates for LP were 80% at 5 years, and 64% at 10 years (SE = 0.4, CI 95%: 9.0–10.5), and for PP, they were 68% at 5 years and 49% at 10 years (SE = 0.5, CI: 95% 6.3–8.2) (p = 0.024). The revision rate was 26% (44/167) for the LP group, and 47% (35/74) for the PP group (p = 0.001). Reoperations on LP osteotomies occurred for the tibial monoplanar cut and biplanar cut groups, in 19/52 (37%) and 25/167 (16%) osteotomies, respectively (p = 0.04). Our Cox regression model showed that PP had a higher risks (RR = 1.7; CI: 95% 1.1–2.6) of revision, when compared with LP (p = 0.026). Conclusions The risk of revision for any reason and that of early conversion to total knee arthroplasty (TKA) after high tibia osteotomy were significantly increased for PP, when compared with LP. |
| Databáze: | OpenAIRE |
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