Table 2 Characteristics of patients with hip dislocation after total hip arthroplasty and controls
Parameters | Dislocation group (n = 7) (range) | Control group (n = 44) (range) | p-value |
|---|---|---|---|
Leg length inequality (mm) | -3.57 ± 8.57 (-16.16–9.07) | -6.59 ± 6.18 (-18.76–9.65) | 0.260 |
Abductor lever arm (mm) | -2.25 ± 6.69 (-12.27–2.73) | -1.80 ± 10.97 (-19.25–51.45) | 0.916 |
Horizontal femoral offset (mm) | -4.80 ± 6.73 (-13.57–3.48) | -9.38 ± 7.77 (-34.94–5.87) | 0.148 |
Vertical femoral offset (mm) | -11.42 ± 7.44 (-20.07–-1.27) | -9.83 ± 6.80 (-26.07–7.25) | 0.573 |
Horizontal hip center of rotation (mm) | 6.84 ± 2.34 (2.88–9.51) | 4.42 ± 4.97 (-10.46–18.34) | 0.241 |
Vertical hip center of rotation (mm) | -7.17 ± 5.36 (-13.18–-1.15) | -3.21 ± 5.41 (-14.63–7.81) | 0.078 |
Abduction (°) | 36.05 ± 6.82 (28.76–46.39) | 45.68 ± 8.78 (23.33–62.49) | 0.008 |
Anteversion of acetabulum (°) | 28.50 ± 11.41 (9.99–43.53) | 24.77 ± 9.90 (5.74–43.07) | 0.368 |
Anteversion of femoral prosthesis (°) | 8.26 ± 4.47 (2.91–14.78) | 19.47 ± 9.01 (6.23–40.61) | 0.002 |
Combined anteversion (°) | 36.76 ± 12.68 (20.09–52.49) | 44.24 ± 12.70 (17.31–79.63) | 0.154 |