Polylactide had good compatibility, degradable and absorption, and was widely used to the medicine cover, degeneration medicine, absorbing operation thread, and internal fixation of bone fracture.
聚乳酸具有良好的生物相容性、降解性和可吸收性，已经广泛用于医药包覆、缓释药物、手术缝合线、骨折固定材料。
AIM: To evaluate the application of absorbable self-reinforced screws in the internal fixation of cancellous bone fracture.
目的：评价自身增强可吸收螺钉在松质骨部位骨折内固定中的应用价值。
Objective:To evaluate the effect of strengthening internal fixation on compound fracture of facial bone.
目的：评价坚固内固定术在治疗颌面骨多发性骨折的临床应用效果；
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