Table 2 Vilkki HWO severity grading for radial dysplasia
From: Hand function in children with radial longitudinal deficiency
|  |  | Severity points HWO (−1 to 16p) | Severity points mH (−1 to 9p) |
|---|---|---|---|
H | HAND (0-8p) | Â | Â |
|  | MCP II-V flexion <45° | 1/ digit | 1/digit |
|  | PIP II-V extension deficit >20° | 1/digit | 1/digit |
W | WRIST Radial deviation (0-4p) | Â | Â |
|  | Mild 10-30° | 1 |  |
|  | Moderate 30-60° | 2 |  |
|  | Severe 60-90° | 3 |  |
|  | Extreme >90° | 4 |  |
O | OTHER (0-3p) | Â | Â |
|  | Elbow TAM <60° or weak flexion | 1 |  |
|  | Elbow Extension deficit >20° | 1 |  |
|  | Shoulder Abduction or Flexion <120° | 1 |  |
| Â | Pinching pattern dig IV-V | 1 | 1 |
|  | Functional or reconstructable thumb | −1 | −1 |
| Â | Sum Maximum | 16 | 9 |