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Severe Bilateral Fixed Flexion Deformity-Simultaneous or Staged Total Knee Arthroplasty?
Wu Chean Lee1, Yu Heng Kwan2, Seng Jin Yeo1
1Department of Orthopaedic Surgery, Singapore General Hospital, Singapore.
The Journal of Arthroplasty
|September 26, 2015
Summary
Simultaneous bilateral total knee arthroplasty (SimBTKA) showed slightly better outcomes for residual fixed flexion deformity (FFD) compared to staged procedures (StaBTKA). However, the overall clinical advantage of SimBTKA for severe FFD is not significant.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Severe bilateral fixed flexion deformity (FFD) presents challenges in total knee arthroplasty.
- Simultaneous bilateral total knee arthroplasty (SimBTKA) and staged bilateral total knee arthroplasty (StaBTKA) are surgical options.
Purpose of the Study:
- To compare the clinical outcomes of SimBTKA versus StaBTKA in patients with severe bilateral FFD (≥16°).
Main Methods:
- Retrospective investigation of 29 SimBTKA and 38 StaBTKA patients.
- Analysis of residual FFD and functional scores at 2-year follow-up.
Main Results:
- SimBTKA patients were younger.
- SimBTKA demonstrated significantly better residual FFD and Knee Society function scores at 2 years.
- No significant differences were observed in Knee Society knee scores, Oxford Knee Scores, or SF-36 scores.
Conclusions:
- While SimBTKA may offer slight improvements in residual deformity and function, it does not present a substantial clinical advantage over StaBTKA for severe bilateral FFD.
- Severe bilateral FFD is not an absolute indication for SimBTKA.
