Table 1 Demographics, comorbid conditions and prosthesis use in all patients undergoing TKA and for those revised within 8 years of surgery
Variable | All TKA N = 321,945 | Revised N = 9819 |
|---|---|---|
Median (IQR) age in years | 72 (67-78) | 70 (64-75) |
N (%) female | 195,668 (60.8) | 5659 (57.6) |
N (%) cemented femoral | 188,734 (58.6) | 5438 (55.4) |
N (%) cemented tibial | 259,187 (80.5) | 7344 (74.8) |
N (%) patella used | 164,333 (51) | 3916 (39.9) |
N (%) fixed bearing | 257,008 (79.8) | 7202 (73.3) |
N (%) minimally stabilised | 234,827 (72.9) | 6669 (67.9) |
N (%) cross-linked polyethylene | 107,456 (33.4) | 2080 (21.2) |
N (%) computer navigated | 60,164 (18.7) | 1551 (15.8) |
N (%) anticoagulants | 42,398 (13.2) | 1281 (13) |
N (%) antiplatelet medications | 64,011 (19.9) | 2091 (21.3) |
N (%) anxiety | 34,863 (10.8) | 1462 (14.9) |
N (%) Arrhythmia | 18,373 (5.7) | 568 (5.8) |
N (%) congestive heart failure | 25,281 (7.9) | 833 (8.5) |
N (%) depression | 83,445 (25.9) | 3165 (32.2) |
N (%) diabetes | 47,041 (14.6) | 1442 (14.7) |
N (%) Gastro-oesophageal reflux disease | 156,820 (48.7) | 5058 (51.5) |
N (%) glaucoma | 20,382 (6.3) | 527 (5.4) |
N (%) gout | 30,540 (9.5) | 997 (10.2) |
N (%) hyperlipidaemia | 160,478 (49.8) | 4817 (49.1) |
N (%) hypertension | 181,127 (56.3) | 5325 (54.2) |
N (%) hypothyroidism | 33,546 (10.4) | 1053 (10.7) |
N (%) ischaemic heart disease (angina) | 21,925 (6.8) | 826 (8.4) |
N (%) ischaemic heart disease (hypertension) | 117,801 (36.6) | 3399 (34.6) |
N (%) osteoporosis/Paget’s | 30,706 (9.5) | 844 (8.6) |
N (%) pain | 151,805 (47.2) | 5514 (56.2) |
N (%) inflammation pain | 176,883 (54.9) | 5949 (60.6) |
N (%) chronic airways disease | 71,122 (22.1) | 2373 (24.2) |
N (%) steroid responsive | 54,271 (16.9) | 1906 (19.4) |