Comparison of Mobile-Bearing and Fixed-Bearing Total Knee Arthroplasty (Short-Term Functional Results)

Kazemi, MD, Seyyed Morteza; Minaei, MD, Reza; Okhovatpoor, MD, Mohammad Ali; Farhang Zanganeh, MD, Ramin; Bigdeli, MD, Mohammad Reza; Aghapour, MD, Seyed Reza

doi:10.22034/ijos.2020.121143

Comparison of Mobile-Bearing and Fixed-Bearing Total Knee Arthroplasty (Short-Term Functional Results)

Authors

Seyyed Morteza Kazemi, MD

Reza Minaei, MD

Mohammad Ali Okhovatpoor, MD

Ramin Farhang Zanganeh, MD

Mohammad Reza Bigdeli, MD

Seyed Reza Aghapour, MD

https://doi.org/10.22034/ijos.2020.121143

Abstract

Background: The role of a mobile-bearing knee arthroplasty is still not clear. This study was designed to compare the mobile and fixed-bearing prosthesis.Methods: In 30 knees a fixed-bearing and in 38 knees a mobile-bearing prosthesis was used. The results were compared using the "Knee Society Scoring System".Results: The mobile-bearing group of patients had an average age of 65 and 34 months average follow-up. The fixed-bearing group had an average age of 69 years and a mean follow-up of 30 months. The average knee score, functional score and overall score in the mobile-bearing group rose from 29, 45, 73 to 64, 67, 128 and in the fixed-bearing group from 31.7, 34, 65.9 to 68, 57, 125 prospectively. The difference between two groups was not significant statistically.Conclusion: Although in both groups the average knee scores increased after the operation, there were, however, no significant difference between knee scores in the two types in short-term, and no preference between two types of prosthesis.

Keywords

Arthroplasty

knee

prostheses and implants