Mobile Bearing Vs Fixed Bearing Prostheses in Total Knee Arthroplasty | ||||
| Benha Medical Journal | ||||
| Articles in Press, Accepted Manuscript, Available Online from 06 August 2025 PDF (584.7 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/bmfj.2025.367939.2342 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Emad E. Esmat1; Mohamed A. Musilihy1; Mohamed S. Mohamed  2
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| 1Professor of Orthopedic, Faculty of Medicine, Benha University | ||||
| 2Department of Orthopedic Faculty of Medicine - Benha University | ||||
| Abstract | ||||
| Background: Total Knee Replacement (TKR) is an effective treatment for severe knee osteoarthritis, improving pain, mobility, and quality of life. Prostheses are categorized into Fixed-Bearing (FB) and Mobile-Bearing (MB) designs, differing in stability and wear characteristics. Objectives: to compare MB and FB prostheses in primary TKR for functional and clinical outcomes in osteoarthritis patients. Methods: A prospective comparative study was conducted on 20 knee osteoarthritis patients at the Orthopedic Department in Benha University Hospital, divided into MB-TKR and FB-TKR groups. Preoperative and postoperative assessments included Hospital for Special Surgery (HSS) scores, pain levels, walking distance, stair climbing, Range of Motion (ROM), muscle strength, knee stability, and complications. Results: Both groups demonstrated significant improvements in HSS scores, pain reduction, and mobility. The MB group had a significantly greater increase in walking distance (9.4 ± 1.9m vs. 8.8 ± 2.5m, p = 0.04), stair climbing score (4.4 ± 1.3 vs. 3.8 ± 1.5, p = 0.03), muscle strength (8.2 ± 2.4 vs. 7.4 ± 2.5, p = 0.04), and knee stability (p < 0.05). ROM, transfer ability, and complication rates were similar between groups. Conclusion: Both MB and FB prostheses improve functional outcomes in TKR. MB implants provide superior gains in walking distance, stair climbing, muscle strength, and knee stability, suggesting potential advantages in active patients. | ||||
| Keywords | ||||
| Mobile-Bearing; Fixed-Bearing; Total Knee Replacement; Arthroplasty Outcomes; Knee Prostheses | ||||
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