Hip joint space width (JSW) measurement with a 0.1 mm graduated magnifying glass1-150
| Measurement site1-150 | Mean ± limits of agreement between two measurements of the same hip | Mean ± limits of agreements between right and left hips | Asymmetical hip JSW%† | Greatest difference (mm) |
|---|---|---|---|---|
| Superointermediate | 0.04±0.13 | −0.03±0.61 | 56 | 0.7 |
| Superolateral | 0.10±0.18 | +0.08±0.78 | 66 | 1.2 |
| superomedial | 0.15±0.22 | +0.01±0.67 | 54 | 0.9 |
↵1-150 See Methods for measurement site definition. †Percentage of people in whom the difference between the two hip JSW is greater than the within expected intraobserver variation.