Reoperations for hemiarthroplasty failure*
| Treatment | Reoperation 1, no. (%) | Reoperation 2–7, no. (%) |
|---|---|---|
| Revision arthroplasty | 98 (63) | 31 (41) |
| Femur only | 38 (25) | 4 (5) |
| Acetabulum only | 35 (23) | 20 (27) |
| Femur and acetabulum | 24 (15) | 3 (4) |
| Sleeve only | 1 (1) | 0 (0) |
| Head and sleeve | 0 (0) | 1 (1) |
| Liner only NA | 3 (4) | |
| Treatment of hip dislocation | 29 (19) | 20 (27) |
| Closed reduction | 29 (19) | 14 (19) |
| Open reduction | 0 (0) | 5 (7) |
| Resection arthroplasty | 0 (0) | 1 (1)§ |
| Open treatment of infection† | 26 (17) | 24 (32) |
| Modified stage 1 revision | 7 (5) | 0 (0) |
| I & D, head exchange | 6 (4) | 2 (3) |
| Stage 1 revision | 5 (3) | 5 (7) |
| Single-stage revision | 4 (3) | 0 (0) |
| I & D, no component exchange | 2 (1) | 1 (1) |
| I & D, wound and closure | 1 (1) | 3 (4) |
| Resection arthroplasty | 1 (1) | 2 (3)§ |
| I & D, head and liner exchange NA | 3 (4) | |
| Stage 2 revision | 0 (0) | 8 (11) |
| ORIF of periprosthetic femur fracture | 2 (1) | 0 (0) |
| Total‡ | 155 (100) | 75 (100) |
I & D = irrigation and débridement; NA = not applicable; ORIF = open reduction and internal fixation.
↵* n = 155 hips in 154 patients. Reoperation defined as open or closed treatment for a complication of hemiarthroplasty.
↵† Stage 1 revision included I & D, removal of femoral component, and insertion of prosthesis of antibiotic-loaded acrylic cement or equivalent. Modified stage 1 revision included I & D, retention of the femoral component, and insertion of a cemented acetabular liner. Stage 2 revision included I & D and revision arthroplasty. Single-stage revision included I & D and revision arthroplasty in 1 operation.
↵‡ Total for all reoperations combined: 230 procedures, including 187 open (81%) and 43 closed procedures (19%) (closed reductions).
↵§ Resection arthroplasty for treatment of infection with dislocation (2 hips) and dislocation alone (1 hip).