Table I.
Clinical and demographic characteristics of study population
| All TSA cases (2,207 patients [2,588 shoulders]) | TSA with confirmed infection | |
|---|---|---|
| Age at surgery [mean (SD) (range)] (y) | 65 (12) (19-91) | 60 (12) (22-77) |
| Male/female | 47%/53% | 75%/25% |
| Deyo-Charlson index [mean (SD) (range)] | 0.8 (1) (0-13) | 0.6 (1) (0-6) |
| Implant fixation* | ||
| Cemented | 96% | 97% |
| Uncemented | 4% | 3% |
| Diagnosis | ||
| Rheumatoid | 17% | 16% |
| Trauma | 15% | 12% |
| Tumor | 1% | 0% |
| Osteoarthritis | 63% | 53% |
| Rotator cuff disease | 2% | 3% |
| Other† | 2% | 16% |
| BMI [mean (SD) (range)] | 30 (6) (16-60) | 31 (6) (20-40) |
| ASA class | ||
| 1 or 2 | 61% | 55% |
| 3 or 4 | 39% | 45% |
| Follow-up duration [mean (SD) (range)] | 7 y (6 y) (1 d to 31 y)‡ | 8 y (6 y) (2 mo to 21 y) |
| Median Deyo-Charlson index (IQR) | 0 (0-3) | 0 (0-3) |
| Deyo-Charlson index group | ||
| Heart disease (MI, CHF) | 3.7% | 3.1% |
| Peripheral vascular disease | 2.4% | 0% |
| Cerebrovascular disease (stroke, hemiplegia) | 3.7% | 3.1% |
| Moderate-severe renal disease | 3.4% | 0% |
| Peptic ulcer disease | 2.7% | 6.3% |
| Chronic obstructive pulmonary disease | 6.8% | 6.3% |
| Diabetes (with or without organ damage) | 6.9% | 9.4% |
| Connective tissue disease | 18.3% | 18.8% |
| Cancer | 7.0% | 6.3% |
| Other (dementia, liver disease, AIDS) | 1.0% | 0% |
IQR, interquartile range; CHF, congestive heart failure; MI, myocardial infarction.
*
Humeral and/or glenoid components were cemented.
†
Other underlying diagnoses include avascular necrosis, ankylosing spondylitis, psoriatic arthritis, gout, Charcot arthropathy, dislocation, old injury, and history of septic arthritis.
‡
Median follow-up for the entire cohort was 5 years.