Research article
Knee extension range of motion and self-report physical function in total knee arthroplasty: mediating effects of knee extensor strength
- † Equal contributors
1 Department of Physiotherapy, Singapore General Hospital, Singapore, Singapore
2 Orthopaedic Diagnostic Centre, Singapore General Hospital, Singapore, Singapore
3 Allied Health Division, Singhealth, Singapore, Singapore
4 Department of Orthopaedic Surgery, Singapore General Hospital, Singapore, Singapore
BMC Musculoskeletal Disorders 2013, 14:33 doi:10.1186/1471-2474-14-33
Published: 18 January 2013Additional files
Additional file 1:
Figure S1. Flowchart of participant recruitment. TKA = Total Knee Arthroplasty, HTO = High Tibial Osteotomy, UKA = Unicompartmental Knee Arthroplasty. Figure S2. Scattergram of changes in SF-36 physical function scores versus changes in knee extension ROM in 441 patients. The straight line represents ordinary least product regression line with its 95% confidence limits (curved lines): (changes in SF-36 physical function) = 15.5 (14.4 to 16.5) + 2.9 (2.7 to 3.2) X (changes in knee extension ROM). Observed change scores of the knee and SF-36 measures are indicated by the short vertical lines above the x- and y-axes, respectively. Figure S3. Scattergram of changes in SF-36 physical function scores versus changes in knee extension strength in 441 patients. The straight line represents ordinary least product regression line with its 95% confidence limits (curved lines): (changes in SF-36 physical function) = 8.1 (6.3 to 9.7) + 2.5 (2.3 to 2.7) X (changes in knee extensor strength). Observed change scores of the knee and SF-36 measures are indicated by the short vertical lines above the x- and y-axes, respectively.
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