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- Title
Long-term follow-up of a non-randomised prospective cohort of one hundred and ninety two total knee arthroplasties using the NexGen implant.
- Authors
Schiavone Panni, Alfredo; Falez, Franceso; D'Apolito, Rocco; Corona, Katia; Perisano, Carlo; Vasso, Michele
- Abstract
<bold>Purpose: </bold>The purpose of this study was to retrospectively analyse the clinical, functional and radiological outcomes, and the long-term survivorship of the NexGen Legacy Posterior Stabilised (LPS) knee prosthesis (Zimmer Biomet, Warsaw, IN, USA).<bold>Methods: </bold>Between 1996 and 2001, 197 primary NexGen LPS total knee arthroplasties (TKAs) were implanted by a single surgeon; 132 prostheses in 124 patients with a minimum follow-up of 15 years were included in the study. Surgical procedure and post-operative care were the same for all patients. All patients were assessed through the International Knee Society (IKS) scores and range of motion (ROM). A complete radiological study was performed for all patients. Failure was defined as revision of at least one prosthetic component for any cause.<bold>Results: </bold>IKS knee and function scores, as well as ROM and leg alignment, significantly improved at the latest follow-up (p ≤ 0.05). No significant differences were found between fixed- and mobile-bearing groups. Seven implant failures were reported; the implant survival rate (overall) was 94.7% at the latest follow-up.<bold>Conclusions: </bold>This study showed optimal survivorship of the NexGen LPS, associated with a significant improvement in overall outcomes at a minimum follow-up of 15 years.
- Subjects
TOTAL knee replacement; OSTEOARTHRITIS; PROSTHETICS; ARTHROPLASTY; RANGE of motion of joints; KNEE surgery; ARTIFICIAL joints; LONGITUDINAL method; COMPLICATIONS of prosthesis; SURVIVAL; TREATMENT effectiveness; RETROSPECTIVE studies
- Publication
International Orthopaedics, 2017, Vol 41, Issue 6, p1155
- ISSN
0341-2695
- Publication type
journal article
- DOI
10.1007/s00264-017-3438-x