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Do patients need to earn total knee arthroplasty?
S Gidwani1, B Tauro, S Whitehouse
1Avon Orthopaedic Centre, Southmead Hospital, Westbury-on-Trym, Bristol, United Kingdom.
The Journal of Arthroplasty
|March 12, 2003
Summary
Total knee arthroplasty (TKA) outcomes are not negatively impacted by early-stage osteoarthritis (OA). Radiographic severity of knee osteoarthritis did not affect patient improvement after TKA surgery.
Area of Science:
- Orthopaedic Surgery
- Rheumatology
- Radiology
Background:
- Traditional orthopaedic practice often delays total knee arthroplasty (TKA) for osteoarthritis (OA) until advanced stages.
- This approach is based on the perception that TKA in early OA leads to suboptimal outcomes.
Purpose of the Study:
- To investigate the influence of preoperative radiographic osteoarthritis severity on TKA outcomes.
- To challenge the traditional view regarding the timing of TKA in knee OA management.
Main Methods:
- Prospective study of 130 patients undergoing TKA for knee OA.
- Radiographs were graded using the Ahlback classification to assess OA severity.
- Patient outcomes were evaluated using the Oxford Knee Score (OKS) preoperatively and 1 year post-surgery.
Main Results:
- No significant difference in OKS improvement was observed between patients with varying degrees of preoperative radiographic OA.
- All patient groups demonstrated similar levels of improvement 1 year after TKA.
- No correlation was found between OA symptom severity and radiographic OA findings.
Conclusions:
- The degree of preoperative radiographic knee osteoarthritis does not influence TKA outcomes at 1 year.
- These findings suggest that TKA may be underutilized and performed too late in the OA disease process.
- Re-evaluation of current orthopaedic practices regarding TKA timing is warranted.