Research Article
Optimizing Acetabular Component Bone Ingrowth: The Wedge-Fit Bone Preparation Method
| Variable | Group 1 | Group 2 | P value | (Before protocol) | (Wedge fit) |
| Date Range | 9/2006-11/2011 | 6/2012-6/2016 | - - |
| # of Cases | 1496 | 1565 | - - |
| # Deceased | 7 (0.5%) | 3 (0.2%) | 0.1802 |
| Demographics | - - |
| #, % Female | 383 (25.5%) | 415 (26.5%) | 0.5619 |
| Mean Follow-Up (Years) | 4.7 ± 2.3 | 2.4 ± 1.3 | <0.0001 |
| Age (Years) | 52.4 ± 8.3 | 54.2 ± 8.6 | <0.0001 |
| BMI | 27.6 ± 4.5 | 27.8 ± 4.8 | 0.2349 |
| T-Score | 0.0 ± 1.3 | 0.0 ± 1.2 | 1.000 |
| Femoral Component Size (mm) | 49.9 ± 3.5 | 49.9 ± 3.6 | 1.000 |
| Diagnoses | - - |
| Osteoarthritis | 1138 (76.1%) | 1276 (81.5%) | 0.0002 |
| Dysplasia | 198 (13.2%) | 184 (11.8%) | 0.2150 |
| Osteonecrosis | 76 (5.1%) | 70 (4.5%) | 0.4295 |
| RA | 6 (0.4%) | 3 (0.2%) | 0.2846 |
| Post-Trauma | 33 (2.2%) | 17 (1.1%) | 0.0147 |
| LCP/SCFE | 31 (2.1%) | 26 (1.7%) | 0.4009 |
| Other | 14 (0.9%) | 15 (1.0%) | 0.9522 |
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