ArticleInternational orthopaedics2017
Does low-constraint mobile bearing knee prosthesis give satisfactory results for severe coronal deformities? A five to twelve year follow up study.
Article in International orthopaedics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- Total knee arthroplasty for valgus deformity correction using "inverted cruciform release": technique and outcomes.BMC musculoskeletal disorders · 2026Article
- Article
- Long-term results of a rotationally unconstrained fixed-bearing total knee prosthesis.International orthopaedics · 2024Article
- Primary complex total knee arthroplasty with severe varus deformity and large bone defects: mid-term results of a consecutive series treated with primary implants.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2022Article
- Similar outcomes including maximum knee flexion between mobile bearing condylar-stabilised and fixed bearing posterior-stabilised prosthesis: a case control study.Journal of experimental orthopaedics · 2022Article
- Prostheses option in revision total knee arthroplasty, from the bench to the bedside: (1) basic science and principles.EFORT open reviews · 2022Review
- Fixed-Bearing Posterior-Stabilized Implant versus Constrained Condylar Knee in One-Stage Bilateral Primary Arthroplasty of the Varus Knee: A Randomized Controlled Trial with Minimum 2-year Follow-Up.Advanced biomedical research · 2022Article
- Minimal under-correction gives better outcomes following total knee arthroplasty in severe varus knees-myth or reality?-analysis of one hundred sixty two knees with varus greater than fifteen degrees.International orthopaedics · 2020Article
- Intraoperative morphometric study of distal femur in Brazilian patients undergoing total knee arthroplasty.PloS one · 2020Observational
- Outcomes after knee arthroplasty in extra-articular deformity.International orthopaedics · 2019Article
- Medial femoral epicondyle upsliding osteotomy with posterior stabilized arthroplasty provided good clinical outcomes such as constrained arthroplasty in primary total knee arthroplasty with severe valgus deformity.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019Article
- Increased valgus laxity in flexion with greater tibial resection depth following total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019Article
- Total knee arthroplasties from the origin to navigation: history, rationale, indications.International orthopaedics · 2019Review
- Total knee arthroplasty in patients with varus deformities greater than ten degrees: survival analysis at a mean ten year follow-up.International orthopaedics · 2019Article
- Total knee arthroplasty in the varus knee: tips and tricks.International orthopaedics · 2019Review
- The effect of different insert design congruencies on the kinematics of a mobile bearing TKA: A cadaveric study.Journal of orthopaedicsArticle
- The use of mobile bearing TKA in valgus deformities - A clinical study.Journal of orthopaedicsArticle
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeSevere varus and valgus knee deformities traditionally are replaced with constrained implants, with a number of disadvantages. We present our results in this challenging group using a low constraint deep-dish mobile bearing implant design.
methodsOne hundred fifty-four patients (170 arthroplasties) who underwent primary TKA using a deep-dish, mobile bearing posterior-stabilized implant for severe varus (HKA < 170°) or valgus (HKA > 190°) deformity between 2004 and 2009 were evaluated at a mean of 6.6 years post-operatively (minimum of 5 years).
resultsAlignment improved from a pre-operative mean (±SD) varus deformity of 167.4° (±2.6°) and a mean (±SD) valgus deformity of 194.1° (±4.0°) to an overall mean (±SD) post-operative mechanical alignment of 178.6° (±3.2°). Twenty-three patients had post-operative varus alignment, five patients had post-operative valgus alignment and 134 knees were in neutral alignment (within 3° spread). Clinical scores at final follow-up were excellent (IKS score 93.8 (±7.4) and function score 82.4 (±20.2)). Three patients were re-operated upon: one deep infection, one periprosthetic fracture and one revision at 144 months for aseptic loosening of the femoral component. No patient was revised for instability or implant failure. The survival rate at five years was 99.4% and at ten years 98.6%.
conclusionsSatisfactory outcomes can be achieved in patients with substantial varus or valgus deformities using low constraint deep-dish mobile bearing implant, standard approach and appropriate soft tissue releases.
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