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- Title
Gait analysis and electromyography in fixed- and mobile-bearing total knee replacement: a prospective, comparative study.
- Authors
Tibesku, Carsten; Daniilidis, Kiriakos; Skwara, Adrian; Dierkes, Tobias; Rosenbaum, Dieter; Fuchs-Winkelmann, Susanne
- Abstract
Purpose: The theoretical superiority of mobile-bearing total knee arthroplasties (TKAs) has not yet been proven in clinical studies. The aim of the current study was to compare and to analyse in a patient population that had received either a fixed or a mobile TKA differences in gait analysis electromyography and clinical scores. Methods: In a prospective, randomized, patient- and observer-blinded clinical study, 33 patients with primary osteoarthritis of the knee were included. All patients received a Genesis II total knee replacement. Sixteen patients received a mobile and 17 a fixed-bearing cruciate retaining Genesis II TKA. Clinical and quality-of-life scores, electromyography and gait analysis were applied preoperatively and postoperatively with a follow-up of 24 months. Results: In both groups, improvements from pre- to postoperative were detected. whereas the results of gait analysis and electromyography did not show any differences. The results from the clinical and the quality-of-life scores improved from pre- to postoperative, while the Knee Society Score showed a superiority of the mobile-bearing group (mean 159 ± 28) over the fixed-bearing group (mean 134 ± 41). Conclusion: No functional advantage of mobile over fixed-bearing TKA was detected, although the mobile-bearing group had better clinical results for which a reason could not be found. These results only apply to cruciate retaining mobile-bearing TKA with a bearing which allows both rotation and anteroposterior translation. Level of evidence: Prospective comparative study, Level II.
- Subjects
TOTAL knee replacement; GAIT in humans; ELECTROMYOGRAPHY; OSTEOARTHRITIS; KNEE surgery; THERAPEUTICS
- Publication
Knee Surgery, Sports Traumatology, Arthroscopy, 2011, Vol 19, Issue 12, p2052
- ISSN
0942-2056
- Publication type
Article
- DOI
10.1007/s00167-011-1540-y