Table 2.
Other studies concerned with surgical hip dislocation
| Authors | Year | No. of cases | Indication for dislocation | Score | Follow-up period (mean, months) | Complications |
|---|---|---|---|---|---|---|
| Gardener et al. | 2005 | 2 cases | Pipkin type II (2 cases) | None | – | |
| Henle et al. | 2007 | 12 case |
Pipkin type I (1 case) Pipkin type II (3 cases) Pipkin type IV (8 cases) |
Merle d’Aubigne and Postel score Thompson and Epstein score |
31 |
Osteonecrosis ( 2 cases) Heterotopic ossification (5 cases) Reduced range of motion (4 cases) |
| Solberg et al. | 2009 | 12 case | Pipkin type IV fractures |
Merle d’Aubigne´and Postel score Thompson–Epstein scoring |
47 |
Osteonecrosis (1 case) Heterotopic ossification (3 cases) |
| Kokubo et al. | 2012 |
12 cases (3 cases treated with trochanteric flip osteotomy all of them of Pipkin type IV) |
Pipkin type I (5 cases) Pipkin type II (2 cases) Pipkin type III (2 cases) Pipkin IV (3 cases) |
Thompson and Epstein’s score | 115 |
Osteoarthritis in one case treated later on by THA Heterotopic ossification (1 case) |
| Masse et al. | 2014 | 13 case |
Pipkin type I (5 cases) Pipkin type II (two cases) Pipkin type IV (6 cases) |
Modified Harris hip score | 77 |
Osteonecrosis (1 case) Heterotopic ossification (2 cases) Arthritis (1 case) |
| Moustafa et al. | 2014 | 23 cases (only 12 cases treated with trochanteric flip osteotomy) |
Pipkin type I ( 5 cases) Pipkin type II (18 case) |
Modified Merle d’Aubigne and Postel Thompson and Epstein scores |
31 |
Osteonecrosis (1 case) Nonunion of the trochanteric osteotomy developed in one patient |
| Gavaskar et al. | 2015 | 26 case |
Pipkin type I (22 case) Pipkin type II ( 4 case) |
Modified Merle d’Aubigne score Oxford hip score |
36 |
No osteonecrosis Heterotopic ossification (5 cases) Deep infection (1 case) Painful trochanteric bursitis (1 case) which relieved after screw removal |
| Stirma et al. | 2018 | 4 cases |
Pipkin type I (2 cases), Pipkin type II (1 case) Pipkin type IV (1 case) |
Harris Hip Score | 15 |
1 case progressed to deep surgical site infection. He underwent total hip arthroplasty after 1 year of follow-up later on 1 case evolved with heterotopic calcification No cases of femoral head necrosis were identified |
| Wang et al. | 2019 | 12 case |
Pipkin type I (4 cases), Pipkin type II (3 case) Pipkin type IV (5 cases) |
The modified Merle d’Aubigne scores | 35 |
Osteonecrosis (one case) Heterotopic ossification (4 cases) |
| Rana et al. | 2020 | 6 cases | – | Harris Hip Score | 10.8 | Osteonecrosis (2 cases) |
| Khalifa et al. | 2020 | 27 cases |
Pipkin type I (6 cases), Pipkin type II (13 case) Pipkin type IV (8 case) |
Modified Harris hip Modified Merle d’Aubigne and Postel scores |
48 |
Osteonecrosis (2 cases) Heterotopic ossification (5 cases) Hip arthritis (1 case) |
| Engel et al. | 2021 | 7 cases |
Pipkin type IV (7 case) |
None | 894.57 ± 496.16 days |
Osteonecrosis (2 cases) Heterotopic ossification (1 case) Hip arthritis (6 cases (4 converted to THA)) Deep infection (one case) |
| Current study | 2022 | 18 case |
Pipkin type I (6 cases), Pipkin type II (12 cases) |
Modified Harris Hip and Modified Merle d’Aubigne and Postel scores |
40 | Osteonecrosis (1 case) |