跖骨滋养动脉的观察

Observation of the metatarsal nutrient artery

目的 :观察跖骨滋养动脉的起始、经过和管径。方法 :以 5 %明胶墨汁、硫酸钡墨汁或红色乳胶 ,分别对90侧婴儿～ 87岁的新鲜尸体下肢的动脉进行灌注。经固定后 ,对跖骨滋养动脉进行解剖观察和测量。结果 :跖骨滋养动脉的直径为 0 .2 4～ 0 .30 mm。第 1跖骨滋养动脉 5 9.6 %发自足底深支和第 1跖足底动脉 ,其它跖骨滋养动脉主要发自跖足底动脉、足底弓及其穿支。同时对此动脉入跖骨相关面的滋养孔进行了观察 ,发现 90 %以上位于跖骨体中 1/3段。结论

Objective: To observe the origin,course and diameter of the metatarsal nutrient artery. Methods: The metatarsal nutrient in 90 feet, ranging in age from newborn to 87 years, were studied by perfusion method. The origin, course and diameter of these arteries were observed and measured. Results: The diameter of the metatarsal nutrient artery was 0.24~0.30 mm. The nutrient arteries of the first metatarsal bone originated from the deep plantar branch and the first metatarsal plantar artery in 59.6% of specimens, while the nutrient arteries of the other metatarsal bones mainly originate from the plantar metatarsal arteries, the plantar arch and its perfora ting branches. The diaphysial nutrient foramina were situated in the middle third of the shaft over 90% of specimens. Conclusion: The metatarsal nutrient artery showes practical significance in clinic.