Table 6.
Multiple Linear Regression Analysis of PRUJ OA Radiologic Features and Elbow ROM a
| Estimate (β) | Standard Error | P | ||
|---|---|---|---|---|
| Flexion-extension | Intercept | 140.17 | 4.361 | <.0001 |
| Radial notch osteophyte | -11.276 | 4.620 | .017 | |
| Radial head osteophyte | -3.4192 | 3.499 | .331 | |
| Joint space narrowing | 3.1714 | 3.649 | .387 | |
| Subchondral cyst | -2.9427 | 4.05 | .470 | |
| Loose bodies | -2.0364 | 3.986 | .610 | |
| Pronation-supination | Intercept | 166.92 | 4.67 | <.0001 |
| Radial notch osteophyte | -34.1 | 4.95 | <.0001 | |
| Radial head osteophyte | -5.0871 | 3.75 | .179 | |
| Joint space narrowing | 4.0402 | 3.91 | .305 | |
| Subchondral cyst | -0.5497 | 4.34 | .899 | |
| Loose bodies | 1.762 | 4.27 | .681 |
a
Boldface type indicates statistical significance. OA, osteoarthritis; PRUJ, proximal radioulnar joint; ROM, range of motion.