Table 1.
Patient Characteristics and Factors Associated With Subluxation of Proximal Interphalangeal Fracture.
| Characteristic | All patients | Subluxated | P value | |
|---|---|---|---|---|
| No | Yes | |||
| (N = 413) | (n = 342) | (n = 71) | ||
| Age, mean (SD), y | 40 (15) | 40 (15) | 39 (14) | .65 |
| Sex, No. (%) | ||||
| Men | 259 (63) | 206 (60) | 53 (75) | .022 |
| Women | 154 (37) | 136 (40) | 18 (25) | |
| Race, No. (%) | .16 | |||
| White | 320 (81) | 265 (82) | 55 (79) | |
| Black | 18 (4.6) | 17 (5.2) | 1 (1.4) | |
| Hispanic | 16 (4.1) | 10 (3.1) | 6 (8.6) | |
| Asian | 12 (3.0) | 9 (2.8) | 3 (4.3) | |
| Other | 29 (7.3) | 24 (7.4) | 5 (7.1) | |
| Smoking, No. (%) a | ||||
| No | 322 (87) | 265 (87) | 57 (88) | >.99 |
| Yes | 49 (13) | 41 (13) | 8 (12) | |
| Diabetes, No. (%) | ||||
| No | 391 (95) | 322 (94) | 69 (97) | .40 |
| Yes | 22 (5.3) | 20 (5.9) | 2 (2.8) | |
| Body mass index, mean (SD), kg/m2 | 27 (5.4) | 27 (5.7) | 27 (4.0) | .73 |
| Affected finger, No. (%) | .57 | |||
| Index | 72 (17) | 58 (17) | 14 (20) | |
| Middle | 89 (22) | 78 (23) | 11 (15) | |
| Ring | 135 (33) | 110 (32) | 25 (35) | |
| Small | 116 (28) | 95 (28) | 21 (30) | |
| Dominant side affected, No. (%) b | >.99 | |||
| No | 137 (52) | 111 (52) | 26 (51) | |
| Yes | 127 (48) | 102 (48) | 25 (49) | |
| Cause of injury, No. (%) c | .36 | |||
| Sports | 123 (36) | 106 (37) | 17 (18) | |
| Fall | 114 (33) | 87 (31) | 27 (44) | |
| Impact | 77 (22) | 66 (23) | 11 (18) | |
| Crush | 21 (6.1) | 17 (6.0) | 4 (6.6) | |
| Sharp | 2 (0.58) | 2 (0.70) | 0 | |
| Other | 9 (2.6) | 7 (2.5) | 2 (3.3) | |
| Open fracture, No. (%) | >.99 | |||
| No | 403 (98) | 333 (98) | 70 (99) | |
| Yes | 9 (2.2) | 8 (2.4) | 1 (1.4) | |
| Comminution, No. (%) | >.99 | |||
| No | 332 (80) | 297 (87) | 35 (49) | |
| Yes | 81 (20) | 45 (13) | 36 (51) | |
| Days between injury and first visit, mean (SD) | 7.0 (25) | 7.1 (27) | 6.5 (16) | .87 |
| Fragment size, mean (SD; min-max), % | 22 (16; 1.5-80) | 19 (13; 1.5-80) | 39 (17; 5.1-72) | <.001 |
| Fragment displacement, mean (SD; min-max), % | 25 (30; 0.67-176) | 16 (14; 0.67-120) | 68 (30; 5.2-176) | <.001 |
Bold values indicate a statistical significance value.
a
n = 371.
b
n = 264.
c
n = 364.