Table 1 Baseline characteristics, AO/OTA fracture classification, and surgeon experience by choice of implant
Implant | SHS | SHS with TSP | IMN | All fractures |
|---|---|---|---|---|
Number, n (% of total) | 8866 (42) | 4407 (21) | 7629 (36) | 20,902 |
Patient characteristics | ||||
Mean age (SD) | 83.3 (8.6) | 83.4 (8.8) | 83.1 (8.7) | 83.2 (8.7) |
Women, n (%) | 6241 (70) | 3326 (75) | 5570 (73) | 15,137 (72) |
ASA classes 1–2, n (%) | 2972 (34) | 1402 (32) | 2543 (34) | 6917 (34) |
Cognitive impairment, n (%) | 2395 (27) | 1116 (25) | 1879 (25) | 5390 (26) |
Fracture type and surgeon experience | ||||
AO/OTA 31A1, n (%) | 5807 (69) | 450 (5) | 2197 (26) | 8454 (100) |
AO/OTA 31A2, n (%) | 2706 (31) | 2901 (34) | 2991 (35) | 8598 (100) |
AO/OTA 31A3 and subtrochanteric fractures, n (%) | 353 (9) | 1056 (27) | 2441 (63) | 3850 (100) |
Surgeon experience > 3 years, n (%) | 5520 (68) | 2853 (71) | 5860 (81) | 14,233 (73) |