Chen Antonia F, Hozack William J
Department of Orthopaedic Surgery, Rothman Institute, 925 Chestnut Street, Philadelphia, PA 19107, USA.
Department of Orthopaedic Surgery, Rothman Institute, 925 Chestnut Street, Philadelphia, PA 19107, USA.
Orthop Clin North Am. 2014 Jul;45(3):275-86. doi: 10.1016/j.ocl.2014.03.001.
Component selection for revision total hip arthroplasty is important for creating a stable hip, providing offset to maximize joint mechanics, and restoring appropriate leg lengths. On the femoral side, fully porous coated stems, modular tapered stems, and proximal femoral replacements can be used depending on the level of bone loss. For the acetabulum, smaller defects can be contained using second-generation porous coating hemispherical cups, whereas larger acetabular defects can be contained with cup cages, cages, or custom triflange implants. In addition, acetabular liners can improve stability through altered cup version, dual mobility, or constraint of the femoral head.
翻修全髋关节置换术的组件选择对于创建稳定的髋关节、提供偏心距以最大化关节力学以及恢复合适的下肢长度至关重要。在股骨侧，根据骨量丢失程度可使用全多孔涂层柄、模块化锥形柄和股骨近端置换物。对于髋臼，较小的缺损可使用第二代多孔涂层半球形髋臼杯进行包容，而较大的髋臼缺损则可使用髋臼杯笼、笼或定制三翼植入物进行包容。此外，髋臼衬垫可通过改变髋臼杯角度、双动性或限制股骨头来提高稳定性。
