Table 1 Pre-operative comparison of standard RSA and BIO-RSA
From: Reverse shoulder arthroplasty vs BIO-RSA: clinical and radiographic outcomes at short term follow-up
Variable* | RSA (n = 22) | BIO-RSA (n = 18) | p value |
|---|---|---|---|
Age, years | 74.50 (60–91) | 75.06 (59–89) | 0.65 |
Gender | |||
 Male | 3 (14) | 6 (33) | 0.25 |
 Female | 19 (86) | 12 (66) |  |
Follow-up, months | 20 ± 8.9 (12–37) | 19 ±  8.4 (12–36) | 0.71 |
Dominant side | 11 (50) | 8 (44) | 0.85 |
Osteoporosis | 7 (32) | 3 (17) | 0.46 |
Diagnosis | |||
 Osteoarthritis | 1 (4) | 11 (61) |  |
 Rotator cuff arthropathy | 5 (23) | 5 (28) |  |
 Proximal humerus fracture | 10 (45) | 0 |  |
 AVN, malunion, dislocation | 6 (27) | 2 (11) |  |
Glenoid morphology (Walch classification) | |||
 A1 | 20 (90) | 8 (44) |  |
 A2 | 0 (0) | 5 (28) |  |
 B1 | 0 (0) | 0 (0) |  |
 B2 | 1 (5) | 4 (22) |  |
 C | 1 (5) | 1 (6) |  |