• » Cementless stems can be categorized using the updated classification system.
• » Short stems were designed as an alternative to conventional stems with the advantage of bone preservation, and they have grown in popularity with promising results; however, long-term outcomes are lacking.
• » Hydroxyapatite coating appears to have no advantage with respect to stem loosening.
• » The literature has shown no difference in revision rates between modular and nonmodular stems; however, with the advantages of equalizing limb lengths and offset come the drawbacks of corrosion and junctional fatigue failure of modular implants.
• » There is increasing use of cementless stems, including in octogenarians, with promising outcomes compared with cemented stems; however, there is a higher risk of periprosthetic fractures with cementless fixation, particularly in elderly female patients.

中文翻译：

---

全髋关节置换术中非骨水泥股骨固定的更新。

• »可以使用更新的分类系统对非骨水泥茎进行分类。
• »短茎被设计为具有骨骼保护优势的传统茎的替代品，并且已广受欢迎，并取得了可喜的结果。但是，缺乏长期结果。
• »羟基磷灰石涂层在茎杆松动方面似乎没有优势。
• »文献显示，模块化和非模块化阀杆的改版率没有差异。然而，具有使肢体长度和偏移相等的优点，其带来了模块化植入物的腐蚀和接合疲劳破坏的缺点。
• »与骨干相比，非骨干茎的使用不断增加，包括在八足动物中，其结果令人鼓舞；然而，采用非骨水泥固定的假体周围骨折的风险较高，特别是在老年女性患者中。