Objective To explore morphological classification and clinical significance of the third finger web based on 3D reconstruction of structured light scanner, so as to provide data support for the reconstruction of finger webbed separation. Methods A total of 126 volunteers from of Zhengzhou University Science Park and Zhengzhou Health Vocational College were selected as research objects, aged from 18 to 42 years old, with an average age of (25.07±4.62) years old. The 3D surface structured light scanner was used to measure the proximal phalangeal length (PPL), web length (WL), metacarpals distance (MD) and free edge of web length (WW), such as 8 direct measurement indicators and 4 indirect indicators. Results The anatomical morphology of the third finger web reconstructed by 3D structured light scanner can be divided into 5 types: steep slope-type, micro arcuate-type, straight line-type, circular arc-type, and convex-type. The PPL3 and PPL4 in convex-type were less than those in the micro arcuate-type. The PPL3 in circular arc-type and convex-type were less than those of steep slope-type (P<0.05). The WH in convex -type was smaller than that of steep slope-type (P<0.05). The WHR in micro arcuate-type was smaller than that of steep slope-type and circular arc-type (P<0.05). The differences were statistically significant. Conclusions The third finger web can be divided into 5 types: steep slope-type, micro arcuate-type, straight line-type, circular arc-type, and convex-type. Different morphological types of the third finger web can provide anatomical basis for clinicians to choose the operation methods and design of flap shape.
Key words
The third finger web; /
Three-dimensional reconstruction; /
Finger web reconstruction /
Proximal phalangeal length
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