Summary of alterations relative to intact condition observed for arthroplasty-implanted and plated conditions
| Parameter | Arthroplasty | Plated |
|---|---|---|
| ROM | ||
| Flexion | No change | Substantial decrease |
| Extension | No change | Substantial decrease |
| Lateral bending | Mild decrease | Substantial decrease |
| Axial rotation | No change | Substantial decrease |
| LZ | ||
| Flexion-extension | No change | Substantial decrease |
| Lateral bending | Mild decrease | Substantial decrease |
| Axial rotation | Mild decrease | Substantial decrease |
| SZ | ||
| Flexion | No change | No change |
| Extension | No change | No change |
| Lateral bending | Mild increase | No change |
| Axial rotation | Mild increase | No change |
| Coupled axial rotation during lateral bending | No change | Substantial decrease |
| Coupled lateral bending during axial rotation | Substantial decrease | Substantial decrease |
| Anteroposterior position of axis of rotation | No change | Substantial increase |
| Rostrocaudal position of axis of rotation | Mild increase | Substantial increase |
| Facet load during flexion | Mild decrease | Mild decrease |
| Facet load during other loading | No change | No change |