Table 1.
Summary of OBPI patients with ARMS variant of the MRC.
| *Pre-operative Values | ||||||||
| Patient | Sex | Injured Side | Current Age (yrs) | Nerve Involvement | Previous Surgeries | PHHA (%) |
Glenoid version (°) | SHEAR (%) |
| 1 | F | L | 5 | C5 C6 (C7) | MQ | 5 | -37 | 37 |
| 2 | M | R | 7 | C5 C6 (C7) | MQ, PGHC | 8 | -32 | 49 |
| 3 | M | R | 9 | C5 C6 (C7) | none | 16 | -28 | -- |
| 4 | M | R | 12 | C5 C6 (C7) | none | 11 | -33 | 13 |
| 5 | F | L | 19 | C5 C6 (C7) | MQ | 48 | -8 | -- |
| 6 | M | R | 4 | C5 C6 C7 | MQ | 34 | -10 | 19 |
| 7 | F | L | 4 | C5 C6 C7 C8 | NG, MQ | 34 | -13 | 2 |
| 8 | F | R | 10 | C5 C6 C7 C8 T1 | NG, MQ x 2, BTL | -20 | -37 | 9 |
(C7) indicates a milder C7 injury, MQ modified quad surgery, NG nerve grafting, BTL biceps tendon lengthening, PGHC posterior glenohumeral capsulorrhaphy,
* Pre- operative values were measured from CT imaging performed before any bony surgeries.
PHHA percent humeral head anterior to the scapular line, SHEAR scapular hypoplasia elevation and rotation represented by scapular elevation.