Table 1 Prevalence of acetabular dysplasia among 636 patients of the DESIR cohort. The data are numbers (percentages).
Right hip | Left hip | Right and/or left hip | |
|---|---|---|---|
Tönnis angle > 12° | |||
Females | 29/341 (8.5%) | 17/341 (5.0%) | 35/341 (10.3%) |
Males | 21/295 (7.1%) | 16/295 (5.4%) | 26/295 (8.8%) |
Total | 50/636 (7.9%) | 33/636 (5.2%) | 61/636 (9.6%) |
Acetabular angle (AA) > 45° | |||
Females | 50/341 (14.7%) | 30/341 (8.8%) | 58/341 (17.0%) |
Males | 14/295 (4.7%) | 5/295 (1.7%) | 15/295 (5.1%) |
Total | 64/636 (10.1%) | 35/636 (5.5%) | 73/636 (11.5%) |
Lateral centre-edge angle (LCEA) < 20° | |||
Females | 38/341 (11.1%) | 28/341 (8.2%) | 48/341 (14.1%) |
Males | 20/295 (6.8%) | 12/295 (4.1%) | 24/295 (8.1%) |
Total | 58/636 (9.1%) | 40/636 (6.3%) | 72/636 (11.3%) |
Femoral head extrusion index (FHEI) < 70% | |||
Females | 34/341 (10.0%) | 17/341 (5.0%) | 43/341 (12.6%) |
Males | 18/295 (6.1%) | 16/295 (5.4%) | 28/295 (9.5%) |
Total | 52/636 (8.2%) | 33/636 (5.2%) | 71/636 (11.2%) |
Any parameter consistent with acetabular dysplasia | |||
Females | 77/341 (22.6%) | 45/341 (13.2%) | 90/341 (26.4%) |
Males | 40/295 (13.6%) | 27/295 (9.2%) | 49/295 (16.6%) |
Total | 117/636 (18.4%) | 72/636 (11.3%) | 139/636 (21.9%) |