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Revision total knee arthroplasty for stiffness.
Curtis W Hartman1, Nick T Ting, Mario Moric
1Department of Orthopaedic Surgery, University of Nebraska Medical Center Omaha, Nebraska 68198, USA.
The Journal of Arthroplasty
|July 13, 2010
Summary
Revision total knee arthroplasty for stiffness can improve range of motion, but carries a substantial risk of complications and further procedures. This study evaluated 35 patients undergoing revision for stiffness.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Stiffness after total knee arthroplasty (TKA) is a challenging complication.
- Few studies have evaluated revision surgery for well-fixed components causing stiffness.
Purpose of the Study:
- To assess the outcomes of revision TKA for stiffness.
- To evaluate the improvement in range of motion and complication rates.
Main Methods:
- Retrospective review of 35 consecutive patients undergoing revision TKA for stiffness.
- Analysis of pre- and post-operative range of motion (arc of motion).
- Assessment of complication rates and need for further interventions.
Main Results:
- Mean arc of motion significantly improved from 53.6 to 98.1 degrees (P < .0001).
- 75% of patients achieved >30 degrees improvement in arc of motion at 2 years.
- 49% of patients required further intervention or experienced complications.
Conclusions:
- Revision TKA for stiffness can lead to significant improvement in range of motion.
- The procedure has a substantial risk of complications and need for additional surgeries.
- Careful patient selection and counseling are essential for managing expectations.
