Table 3.
Rotator Cuff Repair Characteristics and Concomitant Procedures According to Hydrodistension Group a
| Underwent Hydrodistension | ||||
|---|---|---|---|---|
| Total | No | Yes | P Value | |
| No. of anchors used | ||||
| Mean ± SD | 3.1 ± 1.5 | 3.0 ± 1.5 | 3.3 ± 1.7 | .39 |
| Median (IQR) | 3.0 (2.0-4.0) | 3.0 (2.0-4.0) | 3.0 (2.0-5.0) | |
| No. of tendons involved b | ||||
| Mean ± SD | 1.7 ± 0.7 | 1.7 ± 0.7 | 1.6 ± 0.8 | .84 |
| Median (IQR) | 2.0 (1.0-2.0) | 2.0 (1.0-2.0) | 1.0 (1.0-2.0) | |
| Supraspinatus involved | .19 | |||
| Yes | 320 (82) | 284 (82) | 36 (90) | |
| No | 68 (18) | 64 (18) | 4 (10) | |
| Infraspinatus involved | .76 | |||
| Yes | 166 (43) | 148 (43) | 18 (45) | |
| No | 222 (57) | 200 (57) | 22 (55) | |
| Subscapularis involved | .79 | |||
| Yes | 74 (19) | 67 (19) | 7 (18) | |
| No | 314 (81) | 281 (81) | 33 (83) | |
| Teres minor involved | .40 | |||
| Yes | 6 (2) | 6 (2) | ||
| No | 382 (98) | 342 (98) | 40 (100) | |
| Concomitant subacromial decompression | .13 | |||
| Yes | 199 (51) | 174 (50) | 25 (63) | |
| No | 189 (49) | 174 (50) | 15 (38) | |
| Concomitant distal clavicle excision | .14 | |||
| Yes | 60 (15) | 57 (16) | 3 (8) | |
| No | 328 (85) | 291 (84) | 37 (93) | |
| Concomitant open biceps tenodesis | .046 | |||
| Yes | 214 (55) | 186 (53) | 28 (70) | |
| No | 174 (45) | 162 (47) | 12 (30) | |
a Values are expressed as No. (%) of shoulders unless otherwise indicated. Bold P value indicates statistically significant difference between groups (P < .05). IQR, interquartile range.
b According to preoperative magnetic resonance imaging scan.