Table 3 Demographic data between mismatch groups
From: Radiographic performance depends on the radial glenohumeral mismatch in total shoulder arthroplasty
|  | Mismatch < 4.5 mm | Mismatch ≥4.5 mm | p-value § |
|---|---|---|---|
Total (n) | 52 | 23 | Â |
Age at surgery (years)* | 61.0 (26–84) | 62.5 (41–78) | 0.062 |
Sex (m/f) | m:22, f: 30 | m:12, f: 11 | 0.294 |
Involved side (l/r) | l:20, r:32 | l:6, r: 17 | 0.221 |
Revision surgery (n) (details see below) | 15 | 6 | 0.520 |
Follow-up period (months)* | 40 (26–110) | 56 (19–113) | 0.040 |
Implant characteristics | |||
Implant version | before 2002:43 after 2002:9 | before 2002:2 after 2002:21 | Â |
Glenoid size | |||
S | 20 | 0 | 0.000 |
M | 30 | 13 | Â |
L | 2 | 10 | Â |
Head size (mm) | |||
40 | 5 | 0 | 0.330 |
42 | 4 | 0 | Â |
44 | 7 | 3 | Â |
46 | 11 | 11 | Â |
48 | 8 | Â | Â |
50 | 11 | 4 | Â |
52 | 6 | 5 | Â |
Mismatch (mm)* | 2.6 (0.5–4.2) | 4.9 (4.5–6.9) | 0.000 |
Cement | Allofix-G: 43 Palacos-LV + G): 9 | Allofix-G: 1 Palacos-LV + G): 22 | 0.000 |
* Values in median, with range () or exact values if not applicable § Exact fisher or Ranksum test | |||
Details revision surgery: Mismatch <  4.5 mm - ORIF proximal humerus fracture (5) - Shoulder stabilization surgery (7) - Resection heterotopic ossifications (1) - Rotator cuff reconstruction (1) - Shoulder arthroscopy with biceps tenotomy (1) | Mismatch > 4.5 mm - Shoulder arthroscopy with acromioplasty (2) - ORIF proximal humerus fracture (2) - Shoulder stabilization surgery (2) | ||