Research Article
The Ischial Spine in Developmental Hip Dysplasia: Unraveling the Role of Acetabular Retroversion in Periacetabular Osteotomy
Table 5
Comparison of the dysplastic PAO vs. dysplastic non-PAO groups.
| | Dysplastic hips | ISI (%) | PRIS 1 (mm) | PRIS 2 (mm) | RI (%) | Age (years) | CE angle (degrees) | CA angle (degrees) | Tönnis angle (degrees) |
| | Operated hips (n = 192) | 20.51 ± 24.77 (0–80) | 1.91 ± 2.66 (0–6.4) | 7.38 ± 2.99 (2.40–18.1) | 32.97 ± 12.25 (10.2–64.3) | 30.32 ± 10.87 (15–56) | 5.45 ± 11.19 (−50–30) | 6.59 ± 16.19 (−46–47) | 24.19 ± 7.21 (0–45) | | Nonoperated hips (n = 80) | 16.05 ± 22.59 (0–81) | 1.35 ± 2.01 (0–7) | 7.06 ± 2.87 (2.3–20) | 28.64 ± 9.24 (17.8–51.2) | 30.75 ± 10.43 (15–56) | 15.43 ± 8.14 (−10–28) | 0.02 ± 16.71 (−25–37) | 17.76 ± 5.95 (5–37) | | Total (n = 272) | 19.18 ± 24.18 (0–81) | 1.90 ± 2.66 (0–13.8) | 7.38 ± 2.99 (2.3–20) | 31.8 ± 11.64 (10.2–64.3) | 30.44 ± 10.53 (15–56) | 8.39 ± 11.33 (−50–30) | 0.02 ± 16.76 (−46–47) | 22.30 ± 7.45 (0–45) | | 0.171 | 0.03 | 0.449 | 0.081 | 0.761 | <0.001 | 0.059 | <0.001 |
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All values are described as mean ± SD (range). ISI = ischial spine index; RI = retroversion index.
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