Table 3 Postoperative radiographic measurements
From: Influence of surgical approach on component positioning in primary total hip arthroplasty
Variable | Group A (MIS) | Group B (standard) | ||
|---|---|---|---|---|
THA | Healthy hip | THA | Healthy hip | |
Hip offset (mm) | 69.6 ± 7.0 | 70.5 ± 8.2 | 69.1 ± 5.6 | 70.9 ± 7.6 |
p Value | 0.697 | 0.127 | ||
Acetabular offset (mm) | 29.4 ± 2.8 | 32.9 ± 4.0 | 28.7 ± 3.4 | 33.4 ± 3.8 |
p Value | <0.001 | <0.001 | ||
Femoral offset (mm) | 40.2 ± 6.1 | 37.5 ± 6.0 | 40.4 ± 4.4 | 37.5 ± 6.1 |
p Value | 0.027 | 0.010 | ||
Superior placement of the COR (mm) | 17.9 ± 3.8 | 12.8 ± 2.9 | 18.0 ± 3.4 | 12.7 ± 3.1 |
p Value | <0.001 | <0.001 | ||
Leg length differencea (mm) | 3.0 ± 4.8 | 3.5 ± 4.6 | ||
p Value | 0.354 | |||
Stem alignment (varus/valgus) (°) | 0.8 ± 1.0 | 0.5 ± 1.0 | ||
p Value | 0.101 | |||
Cup inclination (°) | 42.9 ± 5.4 | 35.9 ± 4.3 | ||
p Value | <0.001 | |||
Cup anteversion (°) | 22.0 ± 8.8 | 18.1 ± 6.2 | ||
p Value | 0.014 | |||