Table 3.
Multivariable regression analysis of pre-, peri, and postoperative factors associated with post-MUA-FU flexion or gain in flexion
| Factor | Post-MUA-FU flexion Beta (CI) | Gain in flexion Beta (CI) |
|---|---|---|
| Male sex (ref. female) | 2.1 (–4.2 to 8.5) | 4.1 ( –3.0 to 11) |
| Age | –0.3 (–0.8 to 0.1) | –0.1 (–0.6 to 0.4) |
| BMI | 0.4 (–0.2 to 1.1) | 0.8 (0.2 to 1.5) |
| Diabetes mellitus | –5.8 (–13 to 1.7) | –5.1 (–13 to 3.2) |
| Current smoker | –4.1 (–15 to 6.5) | 5.8 ( –5.9 to 18) |
| ASA score | 0.7 (–4.4 to 5.9) | 2.7 (–3.0 to 8.5) |
| Prior procedure | –0.8 (–5.2 to 8.1) | –1.4 (–8.6 to 5.9) |
| Indication primary OA | ||
| (ref. other than OA) | 2.8 (–6.5 to 12) | 4.4 ( –6.2 to 15) |
| Pre–TKA flexion | –0.007 (–0.2 to 0.2) | 0.2 (–0.1 to 0.4) |
| CR prosthesis | ||
| (ref.PS prosthesis) | 0.1 (–10 to 10) | –1.5 (–13 to 9.8) |
| Patellar component | 0.5 (–9.9 to 11) | 2.4 (–9.5 to 14) |
| Overstuffing | –0.3 (–2.9 to 2.4) | 0.5 (–2.5 to 3.5) |
| Length of stay | –0.7 (–2.9 to 1.6 | 2.2 (–0.4 to 4.8) |
| Timing of MUA | –0.004 (–0.03 to 0.03) | –0.04 (–0.08 to –0.01) |
Beta = regression coefficient; TKA = total knee arthroplasty; OA = osteoarthritis; CR = cruciate-retaining; PS = posterior-stabilized; MUA = manipulation under anesthesia.