[摘要]在生物医用高分子材料领域，生物可降解材料越来越引起人们的重视。生物相容性好、生物可降解吸收、力学性能衰减性、不需二次手术的生物可降解材料骨钉也日益成为研究热点。本文主要讨论了骨钉材料由金属合金到生物可降解材料的发展、PLA的性能及改性、目前PLA骨钉的研究成果。

    [关键字]PLA骨钉；生物可降解材料；金属合金材料；内置骨固定材料；二次手术；并发症

    [ABSTRACT]In biomedical polymer material field, biodegradable materials increasingly attracted people’s attention. Biocompatibility, no need to reoperation of biodegradable materials bone-screw was becoming hotspot. This paper reviews the bone-screw materials by metal alloy to biodegradable materials, and the development of the PLA’s performance and modification, currently PLA bone-screw research achievements.

    [Key words]PLA bone-screw； biodegradable materials；metal alloy materials；the field of medicine； a second surgery； complications

    1综述

    骨钉是一种骨内固定物 ......