Unicompartmental knee arthroplasty, is it superior to high tibial osteotomy in treating unicompartmental osteoarthritis? A meta-analysis and systemic review

Marcel Budhi Santoso, Lidong Wu, Marcel Budhi Santoso, Lidong Wu

Abstract

Background: Debate remains whether high tibial osteotomy (HTO) or unicompartmental knee arthroplasty (UKA) is more beneficial for the treatment of unicompartmental knee osteoarthritis. The purpose of this study was to compare the functional results, knee scores, activity levels, and complications between the two procedures.

Methods: We performed a systematic review of published literature from August 1982 through January 2017. Fifteen papers reporting three prospective randomized trials were subjected to a meta-analysis.

Results: No significant difference between the two groups was noted with respect to free walking (velocity), knee score, deterioration of the contralateral or patellofemoral knee, or revision rate and total knee arthroplasty. However, UKA produced better outcomes compared to HTO in terms of the functional results, pain assessment, and complications, although patients who underwent HTO tended to have slightly better range of motion.

Conclusions: Valgus HTO provides better physical activity for younger patients whereas UKA is more suitable for older patients due to shorter rehabilitation time and faster functional recovery. Although UKA patients tended to have improved overall long-term outcomes, which may be due to accurate indications and patient selection, both treatment options yielded pleasing results. Therefore, we are unable to conclude that either method is superior.

Keywords: High tibial osteotomy (HTO); Meta-analysis; Osteoarthritis; Unicompartmental knee arthroplasty (UKA).

Figures

Fig. 1
Fig. 1
PRISMA Chart
Fig. 2
Fig. 2
Risk of bias assessment shown in included studies
Fig. 3
Fig. 3
Funnel plot to assess small study exclusion/publication bias
Fig. 4
Fig. 4
Forrest plot of ten studies presenting data about primary outcome (excellent/good) result
Fig. 5
Fig. 5
Forrest plot of ten studies presenting data about revision rate

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Source: PubMed

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