目的：探讨第一跖背动脉的超声探测方法学及其临床应用价值。
Objective: to study methodology of ultrasonography of the first metatarsal dorsal artery (FMDA) and to evaluate its clinical value.
第一跖底动脉出现率为92%，口径与第一跖背动脉有互补关系。
The FPA was present in 92% of the series, and the internal diameter has complemented relationship with the FDMA.
1987年以来，应用第一跖背动脉逆行岛状皮瓣治疗4例，结果满意。
Since 1987, we had used the reversed first dorsal metatarsal artery island flap in 4 cases, the results were satisfactory.
目的探讨第一跖背动脉（FMDA）逆行岛状皮瓣修复拇趾骨外露的临床应用效果。
Objective To explore the clinical effect that the first metatarsal dorsal artery(FMDA) reversed flap repair hallux bone reveal.
结论拇趾腓侧皮瓣的主要供血源为趾底动脉，跖背动脉细浅支不足以为拇趾腓侧皮瓣供血。
Conclusions the main blood supply on fibula side flap of great toe is from the base metatarsal artery, and the superficial branch of dorsal metatarsal artery is miner.
术后观察小腿和足部痛觉，踝及足趾的跖背屈运动，足背动脉搏动并行膝侧方应力试验。
Postoperative algesia on the leg and foot, active flexion and extension of the malleolus, toe and phalanxes, and the lateral stress test of the knee were observed.
术后观察小腿和足部痛觉，踝及足趾的跖背屈运动，足背动脉搏动并行膝侧方应力试验。
Postoperative algesia on the leg and foot, active flexion and extension of the malleolus, toe and phalanxes, and the lateral stress test of the knee were observed.
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