Table 1 Patient demographics and injury characteristics between two groups
Variable | Tripod fixation group (n = 45) | Single cannulated screw fixation group (n = 58) | p |
|---|---|---|---|
Age (year) | 35.9 ± 6.8 | 33.4 ± 6.1 | 0.357 |
Gender (%) | 0.870 | ||
Male | 34 (75.6) | 43 (74.1%) | |
Female | 11 (24.4) | 15 (25.9) | |
Injured side (%) | 0.732 | ||
Left | 13 (28.9) | 15 (25.9) | |
Right | 32 (71.1) | 43 (74.1) | |
Dominance side | |||
Dominant | 35 (77.8) | 47 (81.0) | 0.684 |
Non-dominant | 10 (22.2) | 11 (19.0) | |
Smoking status | 0.863 | ||
Current | 17 (37.8) | 22 (37.9) | |
Past | 4 (8.9) | 7 (12.1) | |
Never | 24 (53.3) | 29 (50.0) | |
Mechanism of injury (%) | 0.813 | ||
Fall | 37 (82.2) | 48 (82.8) | |
Twisting | 4 (8.9) | 7 (12.1) | |
Punch | 2 (4.4) | 2 (3.4) | |
Others or unknown | 2 (4.4) | 1 (1.7) | |
Herbert classification | 0.859 | ||
D1 (fibrous nonunion) | 31 (68.9) | 39 (67.2) | |
D2 (sclerotic nonunion) | 14 (31.1) | 19 (32.8) | |
Initial treatment | 0.931 | ||
No treatment | 9 (20.0) | 12 (20.7) | |
Splint or cast immobilization | 36 (80.0) | 46 (79.3) | |
Time from initial injury to surgery (months) | 13.2 ± 7.5 | 13.8 ± 8.1 | 0.682 |