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Mean Diameters of the Metacarpal Canals at Their Narrowest Point Stratified by Finger and Sex in the Radial to Ulnar Direction and Volar to Dorsal Direction.
| Direction | Finger | Overall mean, mm | Sex | Mean by sex, mm | P value |
|---|---|---|---|---|---|
| Radial to ulnar | Index | 3.1 | F | 3.0 | 1.000 |
| M | 3.15 | ||||
| Middle | 3.1 | F | 3.2 | 1.000 | |
| M | 3.0 | ||||
| Ring | 2.6 | F | 2.6 | 1.000 | |
| M | 2.7 | ||||
| Small | 3.7 | F | 3.5 | .453 | |
| M | 3.9 | ||||
| Volar to dorsal | Index | 3.4 | F | 3.5 | 1.000 |
| M | 3.3 | ||||
| Middle | 3.6 | F | 3.6 | 1.000 | |
| M | 3.5 | ||||
| Ring | 3.05 | F | 3.0 | 1.000 | |
| M | 3.1 | ||||
| Small | 3.3 | F | 3.1 | .056 | |
| M | 3.5 |
