Titanium alloy orthopedic implants produced by 3D printing combine the dual advantages of having a complex structure that cannot be manufactured by traditional techniques and the excellent physical and chemical properties of titanium and its alloys; they have been widely used in the field of orthopedics in recent years. The inherent porous structure of 3D-printed implants and the original modification processes for titanium alloys provide conditions for the functionalization of implants. To meet the needs of orthopedic surgeons and patients, functionalized implants with long-term stability and anti-infection or anti-tumor properties have been developed. The various methods of functionalization deserve to be summarized, compared and analyzed. Therefore, in this review, we will collect and discuss existing knowledge on the functionalization of 3D-printed titanium alloy orthopedic implants.

中文翻译：

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3D 打印钛合金骨科植入物的功能化：文献综述。

3D打印制造的钛合金骨科植入物兼具传统技术无法制造的复杂结构和钛及其合金优异的物理化学性能的双重优势；近年来，它们在骨科领域得到了广泛的应用。3D打印植入物固有的多孔结构和钛合金独创的改性工艺为植入物的功能化提供了条件。为了满足整形外科医生和患者的需求，已经开发出具有长期稳定性和抗感染或抗肿瘤特性的功能化植入物。各种功能化方法值得总结、比较和分析。因此，在本次审查中，