Clinical Study
Minimum Lateral Bone Coverage Required for Securing Fixation of Cementless Acetabular Components in Hip Dysplasia
Table 2
Radiographic parameters.
| | Parameters | patients (215 hips) |
| | Postoperative | | | Cup anteversion angle (°) | 16.2 (6.7; 0.0–35.0) | | Cup inclination angle (°) | 42.4 (6.6; 22.0–60.8) | | Vertical distance (mm) | 21.0 (6.5; 9.0–42.3) | | Horizontal distance (mm) | 33.5 (4.0; 22.5–51.2) | | Cup center-edge angle (°) | 15.8 (9.0; −9.2 to 41.0) | | Bone coverage index (%) | 75.5 (8.7; 48.8–96.2) | | At the latest follow-up | | | DeLee and Charnley classification† | | | Type IA | 209 (97.7%) | | Type IB | 5 (2.3%) | | Type IC | 0 (0%) | | Type II | 0 (0%) | | Type III | 0 (0%) | | Zone of radiolucent line† (I : II : III) | 2 (0.9%) : 3 (1.4%) : 0 (0%) | | Osteolysis† | 0 (0%) | | Heterotopic ossification† (I : II : III : IV) | 23 (10.7%) : 2 (0.9%) : 5 (2.3%) : 0 (0%) | | Incorporation of morselized autograft† | | | Complete incorporation | 16 (55.2%) | | Partial incorporation | 11 (37.9%) | | Absorbed | 2 (6.9%) |
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Values are presented as mean (standard deviation; range). †Values are presented as number of hips (%).
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