Gordon S L, Binkert B L, Rashkoff E S, Britt A R, Esser P D, Stinchfield F E
Clin Orthop Relat Res. 1985 Dec(201):18-25.
Total hip arthroplasty was performed in 13 hips with acetabular bone grafts for secure component fixation. The incorporation and healing of acetabular bone grafts were investigated with the aid of roentgenograms, planar bone scans, and a newer scintigraphic technique, three-dimensional single photon emission computed tomography (SPECT). Conventional roentgenograms proved unreliable in evaluating bone graft reconstitution because of overlapping trabecular bone patterns of the graft and iliac wing. There was no evidence of graft failure or acetabular loosening. Bone grafts in the late follow-up group (four to seven years postoperation) exhibited normal radionuclide activity, whereas grafts less than one year postsurgery demonstrated patterns of increased activity. SPECT was helpful in producing an anatomic reconstruction of the acetabulum. The observation that bone grafts exhibited normal biological viability is crucial for ensuring secure acetabular component fixation on a long-term basis.
对13例髋关节进行了全髋关节置换术，采用髋臼植骨以确保假体牢固固定。借助X线片、平面骨扫描以及一种更新的闪烁成像技术——三维单光子发射计算机断层扫描（SPECT），对髋臼植骨的融合与愈合情况进行了研究。由于植骨与髂骨翼的小梁骨模式重叠，传统X线片在评估骨移植重建方面被证明不可靠。没有植骨失败或髋臼松动的证据。晚期随访组（术后4至7年）的骨移植显示出正常的放射性核素活性，而术后不到1年的移植则表现出活性增加的模式。SPECT有助于对髋臼进行解剖重建。骨移植表现出正常生物活性这一观察结果对于长期确保髋臼假体的牢固固定至关重要。
