TABLE 3.
Strength and Range of Motion Data of Bursal-Side and Undersurface Arthroscopic Rotator Cuff Repair Groups Taken Preoperatively and at 2 Years Postoperativelya
| Variable | Bursal-Side Repair | Undersurface Repair | Bursal vs Undersurface | P Value |
|---|---|---|---|---|
| Strength, N | ||||
| Supraspinatus | ||||
| Preoperative | 37.2 ± 2.7 (0-125) | 42.4 ± 2.4 (0-173) | NS | .15b |
| 2 y | 53.5 ± 2.6 (0-136) | 55.2 ± 2.4 (0-145) | NS | .63b |
| Adduction | ||||
| Preoperative | 66.9 ± 4.3 (0-246) | 76.4 ± 3.5 (0-224) | NS | .34b |
| 2 y | 104.8 ± 9.2 (0-380) | 87.3 ± 3.6 (0-243) | NS | .08b |
| Internal rotation | ||||
| Preoperative | 62.38 ± 3.1 (13-170) | 67.86 ± 2.7 (0-178) | NS | .19b |
| 2 y | 73.48 ± 3.2 (14-198) | 77.42 ± 2.5 (0-158) | NS | .33b |
| External rotation | ||||
| Preoperative | 47.7 ± 2.8 (9-162) | 55.7 ± 2.5 (0-167) | <.05 | .04b |
| 2 y | 63.8 ± 7.1 (10-204) | 60 ± 2.2 (0-154) | NS | .61b |
| Lift-off test | ||||
| Preoperative | 31.7 ± 3.1 (0-106) | 36.1 ± 2.1 (0-108) | NS | .25b |
| 2 y | 47.1 ± 2.6 (0-131) | 48.8 ± 2.3 (0-129) | NS | .63b |
| Range of motion, deg | ||||
| Abduction | ||||
| Preoperative | 127.1 ± 4.5 (30-180) | 125 ± 3.2 (30-180) | NS | .72b |
| 2 y | 147 ± 3.5 (40-180) | 149.3 ± 2.7 (40-180) | NS | .59b |
| Forward flexion | ||||
| Preoperative | 144.6 ± 3.7 (45-180) | 158.7 ± 10.3 (40-180) | NS | .20b |
| 2 y | 163.5 ± 10.3 (40-180) | 166.6 ± 2 (50-180) | NS | .34b |
| External rotation | ||||
| Preoperative | 55.8 ± 2.2 (10-90) | 54.7 ± 2.1 (20-100) | NS | .71b |
| 2 y | 56.1 ± 1.6 (0-95) | 59.4 ± 1.8 (0-100) | NS | .22b |
| Internal rotation (vertebral level) | ||||
| Preoperative | L1 ± 0.5 (S5-T7) | L1 ± 0.4 (S5-T7) | NS | .79c |
| 2 y | T9 ± 0.4 (S5-T7) | T10 ± 0.3 (S5-T7) | <.05 | .02c |
aValues are expressed as mean ± standard error of the mean, with range in parentheses. NS, not statistically significant.
bStudent t test.
cMann-Whitney rank-sum test.