Table 1.
Characteristics of rTSA group and non-rTSA group (all diagnoses, excluding 1st revision for infection)
| Variable | Non-rTSA group |
rTSA group |
||
|---|---|---|---|---|
| 2nd revisions | 1st revisions | 2nd revisions | 1st revisions | |
| n = 157 (15.8%) | n = 991 | n = 129 (18.4%) | n = 700 | |
| n (% of 1 st rev.) | n (%) | n (% of 1 st rev.) | n (%) | |
| Female sex | 594 (59.9) | 367 (52.4) | ||
| Age | ||||
| < 55 | 14 (18.7) | 75 (7.6) | 4 (19.0) | 21 (3.0) |
| 55–64 | 57 (20.2) | 282 (28.5) | 25 (27.2) | 92 (13.1) |
| 65–74 | 61 (15.0) | 407 (41.1) | 54 (19.4) | 279 (39.9) |
| ≥ 75 | 25 (11.0) | 227 (22.9) | 46 (14.9) | 308 (44.0) |
| Primary diagnosisa | ||||
| Fracture | 1 (5.9) | 17 (1.7) | 28 (25.0) | 112 (16.9) |
| Osteoarthritis | 142 (15.4) | 923 (94.6) | 54 (19.2) | 281 (42.4) |
| Osteonecrosis | 5 (31.3) | 16 (1.6) | 0 (0.0) | 6 (0.9) |
| Rheumatoid arthritis | 2 (20.0) | 10 (1.0) | 3 (15.8) | 19 (2.9) |
| Rotator cuff arthropathy | 3 (30.0) | 10 (1.0) | 36 (14.7) | 245 (37.0) |
| Class of 1st revision | ||||
| Minor | 67 (52.3) | 128 (12.9) | 81 (18.9) | 429 (61.3) |
| Major partial | 56 (9.0) | 621 (62.7) | 40 (17.2) | 232 (33.1) |
| Major total | 34 (14.0) | 242 (24.4) | 8 (20.5) | 39 (5.6) |
| Type of 1st revisionb | ||||
| Head/insert revisionc | 25 (78.1) | 32 (3.3) | 0 (0.0) | 1 (0.2) |
| Head only revisionc | 41 (45.1) | 91 (9.2) | 13 (10.7) | 121 (22.4) |
| Cup onlyc | 38 (25.7) | 148 (27.5) | ||
| Humeral/glenoid revision | 34 (14.0) | 242 (24.6) | 8 (20.5) | 39 (7.2) |
| Glenoid component revision | 13 (19.7) | 66 (6.7) | 13 (20.3) | 64 (11.9) |
| Humeral component revision | 43 (7.8) | 553 (56.2) | 27 (16.3) | 166 (30.8) |
a
Only the outcome of the 5 most common primary diagnoses have been included.
b
Only the outcome of the six most common types of 1st revision have been listed.
c
rTSA group head/insert = glenosphere/humeral insert, head only = glenosphere only, cup only = humeral insert only.
c
non-rTSA group head/insert = humeral head/glenoid insert, head only = humeral head only, cup only = N/A.