ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2023
A BMI above 30 results in satisfying outcomes in patients undergoing fixed-bearing lateral unicompartmental knee arthroplasty.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.
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Who cites it
18 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Meta-analysis of the efficacy of lateral unicompartmental knee arthroplasty and total knee arthroplasty in the treatment of isolated lateral compartment knee osteoarthritis.Journal of orthopaedic surgery and research · 2025Pooled it
- Magnesium sulphate and sodium bicarbonate as additives for periarticular local infiltration analgesia improve pain management after unicompartmental knee arthroplasty: a prospective, double-blind, randomized controlled trial.Journal of orthopaedic surgery and research · 2024Trial
- Ninety-three point seven percent pooled 10-year survival rate following lateral unicompartmental knee arthroplasty for isolated lateral knee osteoarthritis-A systematic review and meta-analysis.Journal of experimental orthopaedics · 2026Review
- The effect of mechanical axis correction on clinical outcomes after unicondylar knee arthroplasty.BMC musculoskeletal disorders · 2026Article
- Five-year patient-reported outcomes after fixed-bearing medial UKA with broad patient selection.Arthroplasty (London, England) · 2026Article
- How to choose treatment for patients who are eligible for both unicompartmental knee arthroplasty and high tibial osteotomy?Journal of orthopaedic translation · 2026Review
- Lateral unicompartmental knee arthroplasty anatomy, indications, technique, and outcomes: a narrative review.Archives of orthopaedic and trauma surgery · 2025Review
- Obesity has no adverse effect on the survival of unicompartmental knee arthroplasty in a long-term follow-up of 16 years.Journal of experimental orthopaedics · 2025Article
- A controlled study of personalized versus standard osteotomy in medial unicompartmental knee osteoarthritis.Journal of orthopaedic surgery and research · 2025Article
- Gradual restoration of gait following unicompartmental knee arthroplasty: a prospective study.Journal of orthopaedic surgery and research · 2025Article
- Lateral unicompartmental knee arthroplasty is an effective procedure for lateral post-meniscectomy knee osteoarthritis: a case-control study at a mean 7-year follow-up.Journal of orthopaedic surgery and research · 2025Article
- Research on the biomechanical characteristics of the tibiofemoral joint before and after kinematic alignment unicompartmental knee arthroplasty.Journal of orthopaedic surgery and research · 2025Article
- The impact of anterior cruciate ligament deficiency severity on the outcomes of fixed-bearing unicompartmental knee arthroplasty: a retrospective study.Journal of orthopaedic surgery and research · 2025Review
- Obesity and hyperlipidemia were associated with more severe synovitis and structural abnormalities as well as inferior functional outcomes in knee osteoarthritis: a retrospective comparative study.Journal of orthopaedic surgery and research · 2024Article
- Mid-term outcomes of medial metal backed and all-polyethylene unicompartmental knee arthroplasty in obese patients: a retrospective propensity-matched analysis.Journal of orthopaedic surgery and research · 2024Article
- Unicompartmental knee arthroplasty for lateral compartment knee osteoarthritis: a credible surgical approach and short-term clinical outcomes.International orthopaedics · 2024Article
- Effect of lower limb alignment on outcome after lateral unicompartmental knee arthroplasty: a retrospective study.BMC musculoskeletal disorders · 2024Article
- Risk Factors for Postoperative Knee Stiffness in Patients with Anteromedial Knee Osteoarthritis Undergoing Unicompartmental Knee Arthroplasty with Cemented Prostheses: A Short-Term, Retrospective, Case-Control Study.Medical science monitor : international medical journal of experimental and clinical research · 2023Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe purpose of this study is to analyse the effect of BMI on clinical outcomes of cemented fixed-bearing lateral unicompartmental knee arthroplasty (UKA) on a 2- to 12-year follow-up.
methodsBetween January 2010 and January 2020, a total of 103 lateral UKAs were implanted. The Oxford Knee Score (OKS) and the Western Ontario and McMaster University Osteoarthritis Index for pain, stiffness, function, and total score were administered to estimate patients' overall health status pre- and post-operatively. Results were considered good or excellent for WOMAC values > 85 points and OKS > 40 points. Survivorship, described with Kaplan-Meier method, was defined as the lack of revision at the latest follow-up. Complications or further operations were recorded. p values of < 0.05 were considered significant.
resultsOne hundred one lateral UKAs were assessed at a mean follow-up of 77.8 months. No patients underwent revision, but 2 patients (2, 0%) developed aseptic loosening of the implant 2 and 5 years after surgery but for clinical reasons neither undergo revision (5-year survivor 97.2%). Overall satisfaction was generally high, with excellent scores in all WOMAC subscales and OKS for all BMI groups. Considering the pain subscale (WOMAC pain), patients with normal weight and overweight achieve excellent results more frequently [10 (25.64%) vs 10 (23.81%) p = 0.026] than obese patients (n = 0); on the other hand, considering the quality of life (WOMAC QoL), obese patients most frequently reach excellent values, even statistically significant [n = 15 (75.00%) p = 0.040].
conclusionAlthough obesity has historically been described as a contraindication to UKA, improved outcomes with modern UKA implant designs have challenged this perception. Therefore, the classic contraindication of UKAs in patients with BMI > 30 kg/m
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