Table 1. Comparison of Demographic Data between Two Groups.
| Variable | Control group (n = 21) | Allograft group (n = 22) | p-value | |
|---|---|---|---|---|
| Age (yr) | 58.3 ± 7.0 | 60.2 ± 8.4 | 0.427 | |
| Sex (male : female) | 7 : 14 | 7 : 15 | 1.000 | |
| BMI (kg/m2) | 24.6 ± 4.5 | 24.2 ± 2.9 | 0.735 | |
| Symptom duration (wk) | 15.4 ± 10.6 | 16.6 ± 21.9 | 0.827 | |
| Drinking alcohol | 7 (33.3) | 11 (50.0) | 0.358 | |
| Smoking | 3 (14.3) | 1 (4.5) | 0.345 | |
| Hypertension | 7 (33.3) | 6 (27.3) | 0.747 | |
| Diabetes | 2 (9.5) | 3 (13.6) | 1.000 | |
| Preoperative tear size | ||||
| Coronal plane (cm) | 3.30 ± 0.44 | 3.46 ± 0.56 | 0.306 | |
| Sagittal plane (cm) | 3.06 ± 0.50 | 3.03 ± 0.51 | 0.823 | |
| Coronal × sagittal (cm2) | 10.28 ± 3.00 | 10.68 ± 3.50 | 0.685 | |
| Preoperative fatty infiltration* | ||||
| Supraspinatus | 1.81 ± 0.51 | 1.82 ± 0.66 | 0.962 | |
| Infraspinatus | 1.24 ± 0.44 | 1.23 ± 0.43 | 0.935 | |
| Subscapularis | 1.10 ± 0.30 | 1.05 ± 0.21 | 0.533 | |
| GFDI | 1.38 ± 0.28 | 1.36 ± 0.21 | 0.849 | |
| Preoperative functional scores | ||||
| Constant | 58.2 ± 9.0 | 52.8 ± 18.4 | 0.234 | |
| ASES | 54.0 ± 17.1 | 48.7 ± 19.7 | 0.351 | |
| Operation time (min) | 110.9 ± 31.8 | 125.3 ± 24.1 | 0.100 | |
| Operative side, dominant : non-dominant | 15 : 6 | 16 : 6 | 1.000 | |
| Biceps procedure | 16 Tenotomy 5 Tenodesis |
16 Tenotomy 6 Tenodesis |
1.000 | |
| Subacromial decompression | 19 (90.5) | 19 (86.3) | 1.000 | |
Values are presented as mean ± standard deviation or number (%).
BMI: body mass index, GFDI: global fatty degeneration index, ASES: American Shoulder and Elbow Surgeons.
*Fatty infiltration was classified according to Goutallier classification.