Table 6.
Radiological outcome.
| Study | Hips | Vertical position of hip center (mm) |
Horizontal position of hip center (mm) |
Leg-length discrepancy (mm) |
|||||
|---|---|---|---|---|---|---|---|---|---|
| Preoperative | Postoperative | Contralateral | Preoperative | Postoperative | Contralateral | Preoperative | Postoperative | ||
| Peng 2021 | 88 | NA | 23.0 ± 6.1 | 15.4 ± 3.4 | NA | 36.4 ± 4.6 | 35.9 ± 4.4 | NA | |
| Zhang 2019 | 63 | 29.7 ± 10.4 | 22.3 ± 7.6 | 14.0 ± 3.7 | 30.8 ± 6.6 | 29.5 ± 3.7 | 30.3 ± 3.3 | −16.8 ± 17.1 | −5.6 ± 11.8 |
| Zhou 2018 | 77 | 30.3 ± 10.4 | 24.1 ± 8.4, +9.6 ± 8.7 relative to the contralateral | 30.5 ± 6.9 | 31.1 ± 4.8, −0.5 ± 8.2 relative to the contralateral | −18.8 ± 16.1 | −6.2 ± 15.5 | ||
| Salem 2018 | 17 | NA | NA | −26 (−20 to 30) | −1 (−5 to 0) | ||||
| Jo 2016 | 51 | Superior migration of 12.1 ± 4.5 mm in rim fixation group, 11.3 ± 5.6 mm in no rim fixation group | Lateral migration of 3.0 ± 1.3 mm in rim fixation group, 2.3 ± 1.5 mm in no rim fixation group | NA | |||||
| Nwankwo 2014 | 98 | NA | 32.6 ± 9.6 | 21.7 ± 8 | NA | NA | |||
| Wedemeyer 2008 | 17 | 35 ± 8 | 31 ± 9 | NA | 34.5 ± 7.2 | 36.2 ± 6.8 | NA | NA | |
| Fan 2008 | 47 | 31 | 27 | NA | NA | NA | |||
| Obenaus 2003 | 60 | NA | 11.4 mm (0–41) above anatomic rotation center | NA | NA | NA | |||
| Whaley 2001 | 89 | 40 (17–67) | 33 (10–58) | NA | 39 | 43 | NA | NA | |
| Dearborn 2000 | 24 | NA | Elevated averagely 4 mm | NA | NA | NA | |||