Masterson E L, Masri B A, Duncan C P
Department of Orthopaedics, Vancouver Hospital and Health Sciences Centre, British Columbia, Canada.
J Arthroplasty. 1997 Oct;12(7):759-64. doi: 10.1016/s0883-5403(97)90005-x.
The postoperative radiographs of 35 patients who underwent impaction allografting of the proximal femur were reviewed. Of Gruen zones that could be clearly visualized, 39.9% contained areas where cement was absent. Even when an adequate mantle was present, cement voids were commonly seen. These cement mantle deficiencies were confirmed in a series of cadaveric impaction allografting procedures. They appear to be a consequence, at least in part, of an inadequate differential between trial and actual component sizes. Additionally, 4 patients were identified with significant component migration secondary to radiographically visible cement mantle fractures within the first 6 months of surgery. It is concluded that the surgical technique requires modification to ensure a more consistent cement mantle and clinical result.
回顾了35例行股骨近端嵌压植骨术患者的术后X线片。在可清晰观察到的Gruen分区中，39.9%存在骨水泥缺失区域。即使存在足够的骨水泥套，骨水泥孔隙也很常见。在一系列尸体嵌压植骨手术中证实了这些骨水泥套缺陷。它们似乎至少部分是由于试验组件尺寸与实际组件尺寸之间的差异不足所致。此外，4例患者在术后6个月内出现明显的组件移位，继发于X线可见的骨水泥套骨折。结论是需要改进手术技术以确保更一致的骨水泥套和临床结果。
