Table 1.
Bivariate analysis: differences in categorical explanatory variables
| Parameter | Number (%) | Glenoid defect (mm3) | Humeral head defect (mm3) | Number of total instability episodes (times) | Number of self-irreducible dislocations (times) | |
|---|---|---|---|---|---|---|
| Sex | Male | 96 (80%) | 323.9 ± 154.6 | 491.0 ± 419.5 | 17.1 ± 23.1 | 2.0 ± 3.1 |
| Female | 24 (20%) | 168.0 ± 154.6 | 211.5 ± 151.6 | 27.3 ± 31.1 | 3.2 ± 4.3 | |
| P value | - | .046* | .034* | .051 | .085 | |
| Shoulder dominance | Dominant | 73 (61%) | 262.6 ± 243.9 | 358.8 ± 311.1 | 18.4 ± 24.2 | 2.0 ± 2.9 |
| Nondominant | 47 (39%) | 339.5 ± 239.2 | 553.7 ± 482.1 | 20.3 ± 26.7 | 2.7 ±3.9 | |
| P value | - | .043* | .039* | .323 | .818 | |
| Bony Bankart | + | 44 (37%) | 336.2 ± 238.4 | 423.6 ± 416.5 | 22.0 ± 27.9 | 1.9 ± 3.7 |
| − | 76 (63%) | 267.6 ± 245.2 | 441.8 ± 387.8 | 17.4 ± 23.3 | 2.5 ± 3.2 | |
| P value | - | .121 | .439 | .432 | .028* | |
| Anterior hyperlaxity | + | 18 (15%) | 297.6 ± 249.9 | 366.2 ± 279.2 | 23.9 ± 30.6 | 2.1 ± 2.2 |
| − | 102 (85%) | 265.0 ± 211.4 | 447.3 ± 414.1 | 18.3 ± 24.1 | 2.3 ± 3.5 | |
| P value | - | .968 | .997 | .591 | .733 | |
| Inferior hyperlaxity | + | 45 (38%) | 255.4 ± 216.4 | 335.7 ± 276.1 | 22.7 ± 28.0 | 2.3 ± 2.5 |
| − | 75 (63%) | 315.2 ± 257.9 | 494.8 ± 445.4 | 17.0 ± 23.1 | 2.3 ± 3.8 | |
| P value | - | .378 | .193 | .356 | .167 | |
| Collision sports | + | 27 (23%) | 356.0 ± 235.9 | 436.0 ± 373.0 | 21.8 ± 27.5 | 2.6 ± 3.2 |
| − | 93 (77%) | 274.4 ± 244.4 | 434.9 ± 405.5 | 18.3 ± 24.4 | 2.2 ± 3.4 | |
| P value | - | .086 | .935 | .818 | .598 | |
Values are given as means and standard deviation. Statistical analyses of bone defect volumes were performed after correction of the values of bone defect volumes by the patient’s height
* P < .05