Table 1.
Demographics of the study population presented by other type of arthroplasties (Others), stemmed hemiarthroplasty (SHA), and reverse shoulder arthroplasty (RTSA). Values are n (%) unless otherwise specified
| Others | SHA | RTSA | Total a | |
|---|---|---|---|---|
| Factor | (n = 65) | (n = 644) | (n = 127) | (n = 837) |
| Sex | ||||
| Women | 44 (68) | 462 (72) | 89 (70) | 595 (71) |
| Men | 21 (32) | 182 (28) | 38 (30) | 242 (29) |
| Age | ||||
| < 65 | 19 (29) | 206 (32) | 32 (25) | 258 (31) |
| ≥ 65 | 46 (71) | 438 (68) | 95 (75) | 579 (69) |
| Age, mean (SD) | 69 (11) | 70 (11) | 71 (9.4) | 70 (11) |
| Indication for surgery | ||||
| Malunion b | 33 (51) | 134 (21) | 55 (43) | 222 (27) |
| Nonunion | 23 (35) | 470 (73) | 61 (48) | 555 (67) |
| Caput necrosis | 9 (14) | 37 (6) | 10 (8) | 56 (7) |
| Missing | – | 3 (0) | 1 (1) | 4 (0) |
| Period of surgery | ||||
| 2006–2010 | 25 (38) | 393 (61) | 14 (11) | 432 (52) |
| 2011–2015 | 40 (62) | 251 (39) | 113 (89) | 404 (48) |
| Revision | 9 (14) | 48 (7) | 14 (11) | 71 (8) |
| WOOS (completed) | 37 (66) | 347 (61) | 70 (66) | 454 (62) |
| WOOS mean (SD) | 38 (26) | 47.4 (26) | 47.5 (26) | 46.6 (26) |
aFor 1 shoulder arthroplasty, there was missing information on
the type of arthroplasty with which the patient was treated.
bMalunion includes fractures reported together with osteoarthritis.
WOOS: Western Ontario Osteoarthritis of the Shoulder index.