Table 2.
Demographic data with number (%) for all included arthroplasties divided into patients with previous surgery for instability (instability), other types of previous surgery (others), and no previous surgery (none)
| Subgroups | Instability | Others a | None |
|---|---|---|---|
| Age | |||
| ≤ 55 | 70 (60) | 134 (31) | 307 (10) |
| > 55 | 46 (40) | 296 (69) | 2,868 (90) |
| Sex | |||
| Women | 41 (35) | 232 (54) | 1,951 (61) |
| Men | 75 (65) | 198 (46) | 1,224 (39) |
| Arthroplasty type | |||
| Hemi- | 82 (71) | 239 (56) | 1,582 (50) |
| Total | 34 (29) | 191 (44) | 1,593 (50) |
a
Including subacromial decompression with or without acromioclavicular joint resection or synovectomy.