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Knee

Simultaneous mobile- and fixed-bearing total knee replacement in the same patients

A PROSPECTIVE COMPARISON OF MID-TERM OUTCOMES USING A SIMILAR DESIGN OF PROSTHESIS



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Abstract

We conducted a randomised prospective study to evaluate the clinical and radiological results of a mobile- and fixed-bearing total knee replacement of similar design in 174 patients who had bilateral simultaneous knee replacement. The mean follow-up was for 5.6 years (5.2 to 6.1).

The total knee score, pain score, functional score and range of movement were not statistically different (p > 0.05) between the two groups. Osteolysis was not seen in any knee in either group. Two knees (1%) in the mobile-bearing group required revision because of infection; none in the fixed-bearing group needed revision. Excellent results can be achieved with both mobile- and fixed-bearing prostheses of similar design at mid-term follow-up. We could demonstrate no significant clinical advantage for a mobile bearing.


Correspondence should be sent to Professor Y.-H. Kim; e-mail: younghookim@ewha.ac.kr

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