Table 2.
Baseline Characteristics of Patients With Glenohumeral Subluxation Versus Dislocations a
| Variable | Subluxator (n = 141) | Dislocator (n = 115) | P |
|---|---|---|---|
| Age, y | 23.4 ± 8.3 | 22.7 ± 6.8 | .52 |
| Male sex | 100 (70.9) | 81 (70.4) | .89 |
| Body mass index | 24.4 [22.2-27.6] | 25.1 [22.7-27.9] | .24 |
| Dominant hand, yes | 60 (42.6) | 51 (44.3) | .78 |
| Bony Bankart, yes | 23 (16.3) | 15 (13.0) | .49 |
| Hill-Sachs lesion, yes | 76 (53.9) | 102 (88.7) | <.01 |
| Rotator cuff tear, yes | 9 (6.4) | 15 (13.0) | .09 |
| SLAP tear, yes | 38 (27.0) | 32 (27.8) | .89 |
| Glenoid bone loss, % | 3.6% [0.0-7.8] | 3.6% [0-7.5] | .98 |
| Hill-Sachs interval, mm | 11.4 ± 6.1 | 7.6 ± 5.6 | <.01 |
| Glenoid track, mm | 21.4 [19.5-23.1] | 21.6 [19.9-23.1] | .96 |
| Distance to dislocation, mm | 13.7 ± 6.6 | 10.2 ± 7.0 | <.01 |
| Labral tear size, mm | 3.0 [2.5-5.0] | 3.0 [2.0-4.0] | .13 |
| Preoperative FF, deg | 170.0 [160.0-170.0] | 170.0 [160.0-180.0] | .63 |
| Preoperative ER, deg | 55.0 [45.0-70.0] | 60.0 [50.0-67.5] | .66 |
| Preoperative Ssp strength grade | .45 | ||
| 1/5 | 1 (0.9) | 0 (0.0) | |
| 4/5 | 21 (18.4) | 12 (13.8) | |
| 5/5 | 92 (80.7) | 75 (86.2) | |
| Preoperative ER strength grade | .44 | ||
| 1/5 | 1 (0.9) | 0 (0.0) | |
| 4/5 | 19 (16.2) | 10 (11.6) | |
| 5/5 | 97 (82.9) | 76 (88.4) | |
| Preoperative IR strength grade | .52 | ||
| 1/5 | 1 (1.0) | 0 (0.0) | |
| 3/5 | 0 (0.0) | 1 (1.2) | |
| 4/5 | 11 (10.8) | 7 (8.6) | |
| 5/5 | 90 (88.2) | 73 (90.1) |
a
Data are presented as mean ± SD, n (%), or median [IQR]. ER, external rotation; FF, forward flexion; IR, internal rotation; SLAP, superior labrum anterior-posterior; Ssp, supraspinatus. Bolded values denote a significant difference between groups (P < .05).