Table 1.
Baseline Characteristics of Patientsa
| Variables | Isolated SSC RCTs (n = 30) |
Combined AS RCTs (n = 110) |
P Value |
|---|---|---|---|
| Age, y | 59.3 ± 8.9 (43-77) | 62.5 ± 7.3 (37-82) | .044 |
| Male:female, n (% male) | 22:8 (73.3) | 58:52 (47.3) | .024 |
| Onset, mo | 9.7 ± 3.9 | 11.5 ± 3.1 | .471 |
| Body mass index, kg/m2 | 24.2 ± 4.4 (19.3-28.1) | 23.5 ± 3.2 (18.1-26.6) | .781 |
| History of trauma, n (%) | 17 (56.7) | 45 (40.9) | .183 |
| History of smoking, n (%) | 6 (20) | 26 (23.6) | .681 |
| Surgery on dominant hand, n (%) | 21 (70) | 81 (73.6) | .554 |
| Physical examinations, n (%) | |||
| Positive bear hug test | 25 (83.3) | 91 (82.7) | .881 |
| Positive belly press test | 19 (63.3) | 65 (59.1) | .699 |
| Positive internal rotation lag sign | 7 (23.3) | 38 (34.5) | .544 |
| Positive liftoff test | 7 (23.3) | 34 (30.9) | .671 |
| Tear retraction of SSC, mm | 19.9 ± 10.4 (5-50) | 13.3 ± 5.6 (5-35) | <.001 |
| Superoinferior tear dimension of SSC, mm | 19.6 ± 1.5 (5-50) | 11.8 ± 5.4 (5-35) | <.001 |
| Tear pattern of SSC, n (%) | |||
| Lafosse type II | 1 (3.3) | 6 (5.5) | .625 |
| Lafosse type III | 3 (10) | 80 (72.7) | <.001 |
| Lafosse type IV | 26 (86.7) | 24 (21.8) | .001 |
| Coracohumeral distance, mm | 11.0 ± 5.1 (0.8-19) | 8.1 ± 3.2 (0.3-17.4) | .001 |
| Patients receiving coracoplasty, n (%) | 6 (20) | 21 (19) | .998 |
aData are presented as mean ± SD (range) unless otherwise specified. AS, anterosuperior; RCT, rotator cuff tear; SSC, subscapularis.