Open Access
Table 2
Clinical and radiographic outcomes.
DAA N = 40 | PA N = 40 | P-value | |
---|---|---|---|
Clinical outcome | |||
Operative time (min) | 69.3 ± 15.0 (51–110) | 91.7 ± 25.3 (61–170) | <0.001† |
Intraoperative blood loss (mL) | 137 (92–224) | 253 (171–377) | <0.001‡ |
Total complication, n (%) | 0 | 3 (7.5) | 0.241§ |
Intraoperative fracture, n (%) | 0 | 2 (5) | 0.494§ |
Femoral fracture, n (%) | 0 | 1 (2.5) | |
Acetabular fracture, n (%) | 0 | 1 (2.5) | |
Infection, n (%) | 0 | 1 (2.5) | |
Dislocation, n (%) | 0 | 0 | |
Implant loosening, n (%) | 0 | 0 | |
Revision surgery, n (%) | 0 | 2 (5) | 0.494§ |
Radiographic outcome | |||
Cup alignment | |||
Inclination (degrees) | 38.7 ± 4.4 (31–51) | 36.6 ± 5.2 (25–47) | 0.055† |
Anteversion (degrees) | 13.8 ± 4.8 (6–24) | 16.1 ± 5.1 (8–29) | 0.042† |
Inclination within the “safe zone”, n (%) | 39 (97.5) | 35 (87.5) | 0.201§ |
Anteversion within the “safe zone”, n (%) | 40 (100) | 37 (92.5) | 0.241§ |
Both within safe zone, n (%) | 39 (97.5) | 32 (80.0) | 0.029§ |
Stem alignment | |||
Coronal plane (degrees) | 0.6 ± 1.6 (−2 to 5) | 0.2 ± 1.7 (−4 to 4) | 0.266† |
Sagittal plane (degrees) | 1.1 ± 2.1 (−3 to 6) | −0.2 ± 2.0 (−5 to 4) | 0.006† |
Coronal plane in neutral (−3 ≤ angle ≤ 3), n (%) | 38 (95.0) | 38 (95.0) | 1.000§ |
Sagittal plane in neutral (−3 ≤ angle ≤ 3) , n (%) | 35 (87.5) | 37 (92.5) | 0.712§ |
Leg length discrepancy (mm) | 2.9 ± 5.3 (−9 to 16) | 1.7 ± 5.6 (−10 to 15) | 0.325† |
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