25 October 2020 : Clinical Research
Model to Predict Need for Subtrochanteric Shortening Osteotomy During Total Hip Arthroplasty for Crowe Type IV Developmental Dysplasia
Hai-yang Ma1CDE, Jing-yang Sun1BE, Yin-qiao Du1F, Zhi-sen Gao1BF, Jun-min Shen1EF, Tie-jian Li1F, Yong-gang Zhou1AA*DOI: 10.12659/MSM.926239
Med Sci Monit 2020; 26:e926239
Table 2 Predictive factors for SSOT use in patients with Crowe Type IV DDH according to Cox proportional hazards regression models.
| Exposure | Univariate | Multivariate |
|---|---|---|
| Sex | ||
| 0 | 1.0 | 1.0 |
| 1 | 5.81 (0.75,45.05) 0.0924 | 1.62 (0.16,16.94) 0.6849 |
| Age | 0.99 (0.96,1.02) 0.4966 | 0.97 (0.92,1.01) 0.1568 |
| BMI | 0.99 (0.91,1.08) 0.8180 | 1.04 (0.90,1.20) 0.5597 |
| History of surgery | ||
| 0 | 1.0 | 1.0 |
| 1 | 0.34 (0.12,0.99) 0.0479 | 0.41 (0.10,1.65) 0.2106 |
| Use of cone-shaped sleeve | ||
| 0 | 1.0 | 1.0 |
| 1 | 0.20 (0.09,0.46) 0.0001 | 0.18 (0.06,0.53) 0.0018 |
| Secondary acetabulum | ||
| 0 | 1.0 | 1.0 |
| 1 | 0.04 (0.01,0.10) <0.0001 | 0.10 (0.03,0.33) 0.0001 |
| H0/H1 | 1.33 (1.21,1.46) <0.0001 | 1.24 (1.11,1.38) 0.0002 |
| BMI – body mass index; DDH – developmental dysplasia of the hip; H1 – height of dislocation; H0 – height of pelvis; SSOT subtrochanteric shortening osteotomy. | ||