Table 2.
Comparison with triflange cup series
| Study | Technique | Number of hips | Mean followup (years) | Defect | Clinical scores (preoperative/last followup) | Revision rate | Complications | Dislocations | Radiographic appearance | |
|---|---|---|---|---|---|---|---|---|---|---|
| Loose Radiolucent line | ||||||||||
| Christie et al. [5] | Triflange cup | 67 | 4 | AAOS types III/IV | HHS 33/82 | 0% (0/67) | 24% (19/67) | 16% | 0% | 12% |
| Taunton et al. [32] | Triflange cup | 57 | 5 | AAOS type IV | HHS NR/75 | 30%(20/57) | 42% (24/57) | 21% | 16%(9/57) | NR |
| Dennis [10] | Triflange cup | 24 | 4 | Paprosky IIIB | HHS 39/79 | 13% (3/24) | 13% (3/24) | 13% (3/24) | ||
| DeBoer et al. [9] | Triflange cup | 20 | 10 | AAOS type IV | HHS 41/80 | 0% (0/20) | 35% (7/20) | 25% (5/20) | 30% (6/20) | |
| Joshi et al. [16] | Triflange cup | 27 | 5 | AAOS type III | Charnley’s modification of the Merle d’Aubigne and Postel scale 2/5 | 7% (2/27) | 22% (6/27) | 4% (1/27) | 0% | 0% |
| Wind et al. [36] | Triflange cup | 19 | 3 | Paprosky IIIA/IIIB | HHS 38/63 | 21% (4/19) | 53% (10/19) | 26% (5/19) | 21% (4/19) | |
| Holt and Dennis [15] | Triflange cup | 26 | 5 | Paprosky IIIB | HHS 39/78 | 4% (1/26) | 27% (7/26) | 8% (2/26) | 12% (3/26) | |
| Current study | Individual custom cage | 24 | 6 | Paprosky IIIB | HHS 36/81 | 0% (0/24) | 21% (5/24) | 4% (1/24) | 0% (0/24) | 8% (2/24) |
AAOS = American Association of Orthopaedic Surgeons; HHS = Harris hip score; NR = not reported; AAOS classification grades acetabular defects in five types: type I segmental, type II cavitary, type III combined deficiencies, type IV pelvic discontinuity, type V arthrodesis.