英语语法分析

Objective To study the clinical application of medial supramalleolar perforator-based flap of posterior tibial artery in repairing foot and ankle soft tissue coloboma.

目的探讨胫后动脉内踝上穿支筋膜蒂皮瓣在足踝部软组织缺损修复中的应用价值。