Williams E D, Tregonning R J, Hurley P J
Br J Radiol. 1977 Aug;50(596):562-6. doi: 10.1259/0007-1285-50-596-562.
Local infection following total hip joint replacement is often difficult to diagnose. Bone scanning with 99Tcm-diphosphonate has been used in an attempt to detect such infection by assessing uptake of 99Tcm in the hip. Posterior view dot scans of patients with total hip joint replacements were analysed quantitatively to determine the ratios of dots in regions around the acetabular, trochanteric and femoral parts of the prosthesis compared with normal bone. The scans were also assessed visually. Patients with definite evidence of infection showed higher uptake than control patients. The clearest distinction in uptake between the two groups was in the femoral shaft region. The data from these two groups of patients were used to propose diagnostic criteria for detecting abnormalities on scans. These criteria were applied to scans of a third test group of patients who had painful hips, but no definite evidence of infection. The numerical method of analysis is less subjective and may therefore be preferable as a means of providing evidence for or against a diagnosis of infection in patients with painful hip replacements.
全髋关节置换术后的局部感染往往难以诊断。使用99锝-二膦酸盐进行骨扫描，试图通过评估髋关节对99锝的摄取来检测此类感染。对全髋关节置换患者的后位点状扫描进行定量分析，以确定假体髋臼、转子和股骨部位周围区域的点状与正常骨的比率。扫描结果也进行了视觉评估。有明确感染证据的患者比对照患者摄取更高。两组之间摄取最明显的差异在股骨干区域。这两组患者的数据被用于提出扫描检测异常的诊断标准。这些标准应用于第三组有髋关节疼痛但无明确感染证据的测试患者的扫描。分析的数值方法主观性较小，因此作为为疼痛性髋关节置换患者感染诊断提供支持或反对证据的手段可能更可取。
