ArticleHSS journal : the musculoskeletal journal of Hospital for Special Surgery2017
Mid-Term Outcomes of Metal-Backed Unicompartmental Knee Arthroplasty Show Superiority to All-Polyethylene Unicompartmental and Total Knee Arthroplasty.
Article in HSS journal : the musculoskeletal journal of Hospital for Special Surgery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 4 of them syntheses that pooled it.
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Who cites it
16 citing papers in PubMed, 4 syntheses or guidelines pooled it.
- Unicompartmental knee arthroplasty is associated with lower pain levels but inferior range of motion, compared with high tibial osteotomy: a systematic overview of meta-analyses.Journal of orthopaedic surgery and research · 2022Pooled it
- Robotic-assisted knee arthroplasty: an evolution in progress. A concise review of the available systems and the data supporting them.Archives of orthopaedic and trauma surgery · 2021Pooled it
- Robotic-assisted surgery in medial unicompartmental knee arthroplasty: does it improve the precision of the surgery and its clinical outcomes? Systematic review.Journal of robotic surgery · 2021Pooled it
- Patient relevant outcomes of unicompartmental versus total knee replacement: systematic review and meta-analysis.BMJ (Clinical research ed.) · 2019Pooled it
- Outcomes and short-term survivorship of fixed-bearing all-poly unicompartmental knee arthroplasty. A retrospective single-center study of 42 prostheses with a main follow-up of 32.3 months.Archives of orthopaedic and trauma surgery · 2026Article
- Sport participation after unicompartmental knee arthroplasty: High return rates independent of implant design or technique, a systematic review and meta-analysis.Journal of experimental orthopaedics · 2026Review
- Metal-backed versus all-poly tibia in the original cartier unicompartmental knee arthroplasty: outcomes and survivorship at long-term follow-up.Archives of orthopaedic and trauma surgery · 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
- All-Polyethylene Tibial Component in Unicompartmental Knee Arthroplasty Offers Excellent Survivorship and Clinical Outcomes at Short-Term Follow-Up: A Multicenter Retrospective Clinical Study.Medicina (Kaunas, Lithuania) · 2024Article
- Metal-backed or all-poly tibial components: which are better for medial unicompartmental knee arthroplasty? A propensity-score-matching retrospective study at the 5-year follow-up.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2024Article
- Unicompartmental knee arthroplasties: does the type of tibial component selected influence implant survival?Archives of orthopaedic and trauma surgery · 2024Article
- All-polyethylene unicompartmental knee arthroplasty is associated with increased risks of poorer knee society knee score and lower satisfaction in obese patients.Archives of orthopaedic and trauma surgery · 2022Article
- Conversion of anatomic total shoulder arthroplasty to reverse shoulder arthroplasty using a unique hybrid glenoid component: technique and preliminary results.JSES reviews, reports, and techniques · 2022Article
- Unicompartmental knee arthroplasty: all-poly versus metal-backed tibial component-a long-term follow-up study.International orthopaedics · 2021Article
- Lateral unicompartmental knee arthroplasty: A review.World journal of orthopedics · 2021Review
- Excellent survival and outcomes with fixed-bearing medial UKA in young patients (≤ 60 years) at minimum 10-year follow-up.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundTwo commonly used tibial designs for unicompartmental knee arthroplasty (UKA) are all-polyethylene "inlay" and metal-backed "onlay" components. Biomechanical studies showed that the metal baseplate in onlay designs better distributes forces over the tibia but studies failed to show differences in functional outcomes between both designs at mid-term follow-up. Furthermore, no studies have compared both designs with total knee arthroplasty (TKA). QUESTIONS/PURPOSES: The goal of this study was to compare outcomes of inlay UKA and onlay UKA at mid-term follow-up and compare these with TKA outcomes.
methodsIn this retrospective study, 52 patients undergoing inlay medial UKA, 59 patients undergoing onlay medial UKA, and 59 patients undergoing TKA were included. Western Ontario and McMaster Universities Arthritis Index scores were collected preoperatively and at mean 5.1-year follow-up (range 4.0-7.0 years).
resultsPreoperatively, no differences were observed in patient characteristics or outcome scores. At mid-term follow-up, patients undergoing onlay medial UKA reported significant better functional outcomes than those of inlay medial UKA (92.0 ± 10.4 vs. 82.4 ± 18.7,
conclusionFunctional outcomes following onlay metal-backed medial UKA were significantly better compared to inlay all-polyethylene medial UKA and to TKA. Based on the results of this study and on biomechanical and survivorship studies in the literature, we recommended using metal-backed onlay tibial components for unicompartmental knee arthroplasty.
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