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The osseous structure of the carpal groove

La structure osseuse de la gouttière carpienne

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Summary

Transverse osseous structure of the carpal groove was studied using serial sections and microradiography. The width and area of the carpal groove were measured in x-ray films of each section. The wrist and carpal region was divided into six levels: 1) radio-ulnar joint level, 2) proximal level of the carpal bones, 3) intermediate level of carpal bones, 4) distal level of carpal bones, 5) the first C-M joint level, and 6) bases of the metacarpal bone level. The width of the carpal groove averaged 32 mm at the inlet and became narrower toward the outlet. Both inlet and outlet areas were small, the largest area was observed at the middle part. Although the carpal bones did not support the body weight, a remnant of the trajectorial architecture of the trabeculae was observed.

Résumé

La structure transversale des os de la gouttière carpienne a été étudiée à l'aide de coupes et par microradiographie. L'épaisseur et la superficie de la gouttière carpienne ont été mesurées sur des clichés aux rayons X de chacune de ces coupes. La région du poignet et du carpe a été divisée en six rangées: 1) la rangée de l'articulation radiocubitale, 2) la rangée proximale des os du carpe, 3) la rangée intermédiaire des os du carpe, 4) la rangée distale des os du carpe, 5) la rangée de la première articulation C-M et 6) la rangée de la base des os du métacarpe. L'épaisseur moyenne de la gouttière carpienne atteignait 32 mm à l'entrée, se rétrécissant en direction de la sortie. Tant la zone d'entrée que celle de sortie étaient de superficie réduite, la superficie la plus importante étant observée dans la partie médiane. Si les os du carpe ne supportent pas le poids du corps, un reste de structure trajectorielle des travées a cependant été observé.

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Takechi, H., Kono, M. The osseous structure of the carpal groove. Anat. Clin 5, 153–157 (1983). https://doi.org/10.1007/BF01799000

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