Table 1 Univariate and multivariate predictors of inferior subluxation at 1 week after surgery
From: Inferior subluxation of humeral head after osteosynthesis for greater tuberosity fracture
Variables | Univariate predictors | Multivariate predictors | |||
|---|---|---|---|---|---|
+ IS group (N = 17) | − IS group (N = 51) | P-value | Odds ratio [95% CI] | P-value | |
Age (years) | 60.4 [52.6–68.2] | 61.7 [57.4–66.0] | 0.686 | – | – |
Sex (female/male) | 11/6 | 31/20 | 1 | – | – |
Affected side (right/left) | 12/5 | 25/26 | 0.163 | – | – |
BMI | 24.2 [22.4–26.0] | 24.0 [22.8–25.1] | 0.766 | – | – |
Smoking | 6 | 16 | 0.772 | – | – |
Local osteoporosis | 5 | 17 | 1 | – | – |
Time from injury to surgery (days) | 8.1 [5.5–11.7] | 9.7 [7.3–12.2] | 0.599 | – | – |
Preoperative axillary nerve injury | 2 | 9 | 0.718 | – | – |
Dislocation fracture | 9 | 22 | 0.578 | – | – |
Preoperative inferior subluxation | 3 | 4 | 0.355 | – | – |
Surgical approach (Delto-pectoral/Deltoid split) | 12/5 | 23/28 | 0.094 | – | – |
Surgical method | |||||
Plate | 10 | 14 | 0.038* | 1.77 [0.47–6.65] | 0.397 |
CCS | 3 | 13 | 0.743 | – | – |
TO | 4 | 11 | 1 | – | – |
Suture-bridge | 0 | 8 | 0.186 | – | – |
TBW | 1 | 4 | 1 | – | – |
Operative time (minutes) | 121 [109–133] | 94 [85–102] | 0.002* | 1.03 [1.00–1.05] | 0.030* |
Blood loss (g) | 83 [49–116] | 60 [31–89] | 0.048* | 1.00 [1.00–1.01] | 0.937 |
Postoperative drainage | 3 | 5 | 0.402 | – | – |