Mean angular ROM, LZ, and SZ
| Parameter and loading mode | Normal (mean ± SD) (°) | Arthroplasty (mean ± SD) (°) | Plated (mean ± SD) (°) |
|---|---|---|---|
| ROM | |||
| Flexion | 7.0 ± 1.6* | 7.8 ± 1.9* | 3.2 ± 2.3 |
| Extension | 6.9 ± 1.9* | 6.7 ± 1.9* | 2.9 ± 2.0 |
| Lateral bending | 5.4 ± 1.6* | 3.8 ± 1.3*† | 2.6 ± 1.5 |
| Axial rotation | 6.1 ± 1.4* | 5.7 ± 1.6* | 3.0 ± 1.4 |
| LZ | |||
| Flexion-extension | 9.5 ± 2.8* | 9.7 ± 3.6* | 2.9 ± 3.2 |
| Lateral bending | 8.4 ± 2.9* | 4.2 ± 2.0† | 2.3 ± 2.1 |
| Axial rotation | 9.1 ± 2.2* | 6.1 ± 2.4*† | 2.5 ± 2.3 |
| SZ | |||
| Flexion | 2.2 ± 0.5 | 2.9 ± 0.9* | 1.7 ± 0.9 |
| Extension | 2.2 ± 0.6 | 1.9 ± 0.9 | 1.4 ± 0.6 |
| Lateral bending | 1.2 ± 0.2 | 1.7 ± 0.5† | 1.4 ± 0.6 |
| Axial rotation | 1.5 ± 0.4 | 2.6 ± 0.8*† | 1.7 ± 0.4 |