ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2011
High-flexion total knee arthroplasty improves flexion of stiff knees.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.
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Who cites it
14 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.
- Comparison of High-Flexion and Conventional Implants in Total Knee Arthroplasty: A Meta-Analysis.Medical science monitor : international medical journal of experimental and clinical research · 2015Pooled it
- Does the severity or cause of preoperative stiffness affect the clinical results and range of motion after total knee arthroplasty?PloS one · 2018Article
- Analysis of different bicruciate-retaining tibial prosthesis design using a three dimension finite element model.American journal of translational research · 2017Article
- Total knee arthroplasty using NexGen LPS-flex® improves clinical outcomes without early loosening: minimum 6-year follow-up results.Journal of orthopaedic surgery and research · 2016Article
- Functional versus patient-reported outcome of the bicruciate and the standard condylar-stabilizing total knee arthroplasty.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2016Article
- High-Flexion Total Knee Arthroplasty Using NexGen LPS-Flex System: Minimum 5-year Follow-up Results.Knee surgery & related research · 2015Article
- Factors affecting the osteolysis around the components after posterior-stabilized total knee replacement arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2015Article
- Patients achieved greater range of movement when using high-flexion implants.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2015Review
- Short-term functional versus patient-reported outcome of the bicruciate stabilized total knee arthroplasty: prospective consecutive case series.BMC musculoskeletal disorders · 2014Article
- Patellar tilt and thickness do not influence postoperative flexion in a high-flex design total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2013Article
- No better flexion or function of high-flexion designs in Asian patients with TKA.Clinical orthopaedics and related research · 2013Article
- Factors affecting range of motion in total knee arthroplasty using high flexion prosthesis: A prospective study.Indian journal of orthopaedics · 2013Article
- Modular tibial plate for minimally invasive total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2012Article
- The Columbus Knee System: 4-Year Results of a New Deep Flexion Design Compared to the NexGen Full Flex Implant.Arthritis · 2012Article
Corrections and comments
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Authors and funding
7 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeHigh-flexion knee prosthesis designs are generally thought to be of benefit only in patients with a satisfactory preoperative flexion angle. The aim of the study was to evaluate whether high-flexion designs were indeed worthless in osteoarthritis patients with severe preoperative flexion limitation.
methodsThe postoperative maximum flexion was compared in osteoarthritis patients with a preoperative maximum flexion of 100° or less, using LPS and LPS-flex implants (NexGen®; Zimmer, Warsaw, IN) in total knee arthroplasties. Data on 39 knees in the LPS group and 41 in the LPS-flex group, with a minimum of 2 years of follow-up, were reviewed retrospectively, focused on the postoperative maximum flexion.
resultsTwo years after operation, the LPS-flex group had a mean postoperative maximum flexion of 131±10° (range, 105-140°), which was significantly higher than the 121±12° (range, 95-140°) in the LPS group (P<0.001). In the LPS-flex group, about half of the knees (n=18, 44%) could achieve a maximum flexion of 140° postoperatively, but in the LPS group only five knees (13%) achieved a maximum flexion of 140°.
conclusionDespite a different period of the operation between groups, this study suggested that osteoarthritis patients with severe preoperative flexion limitation could achieve more postoperative gain in flexion when a high-flexion prosthesis was used, compared to the flexion obtained using a standard prosthesis.
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