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Table 2 Intraoperative and postoperative patient data

From: Comparison of postoperative effectiveness of less invasive short external rotator sparing approach versus standard posterior approach for total hip arthroplasty

  Corrective group (n = 72) Standard group (n = 54) P
Intraoperative
 Incision length (cm), mean ± SD 13.8 ± 0.9 13.4 ± 0.7 0.4
 Operation time (min), mean ± SD 51 ± 11.7 45 ± 10.3 < 0.001
 Intraoperative blood loss (mL), mean ± SD 278.4 ± 132.7 349.6 ± 189.1 < 0.001
 Postoperative 6-h drainage (mL), mean ± SD 290.7 ± 174.3 509.6 ± 280.7 0.03
 Number of patients requiring autologous blood transfusion, n (%) 5 (6.9) 13 (24.1) 0.03
 Location of prosthesis (°), mean ± SD
  Anteversion angle 42.6 ± 6.7 43.1 ± 6.2 0.53
  Abduction angle 20.7 ± 4.8 19.9 ± 4.2 0.48
Postoperative
 CK, mean ± SD
  1st day postoperative 559.1 ± 361.7 578.9 ± 476.1 0.71
  2nd day postoperative 436.3 ± 265.8 395.4 ± 293.7 0.21
 Myoglobin, mean ± SD
  Change at 1 day postoperatively 178.9 ± 147.3 199.5 ± 11.6 0.43
  Change at 2 days postoperatively 62.9 ± 54.2 76.3 ± 33.5 0.26
 CRP change at 3 days postoperatively, mean ± SD 79.1 ± 47.5 82.5 ± 39.6 0.63
 Time to ambulation (days), mean ± SD 3.0 ± 2.3 4.1 ± 2.2 0.04
 Distance in 6-min walking test (m), mean ± SD 29 ± 9.7 27 ± 7.9 0.68
 Time to using stairs independently (days), mean ± SD 5.5 ± 2.0 7.2 ± 2.7 0.02
 Hospital stay (days), mean ± SD 9.2 ± 3.1 10.8 ± 3.8 0.62
 Joint dislocation, n (%) 1 (1.4) 2 (3.7) 0.399
  1. CK Creatine kinase, CRP C-reactive protein