18例骶髂关节结核的影像学分析

目的　探讨影像学表现对骶髂关节结核的诊断价值。方法 搜集18例经临床证实的骶髂关节结核,并对其影像学表现及相关临床资料进行分析。结果 18例骶髂关节结核均为单侧发病,其中右侧10例(56%),左侧8例(44%),男5例,女13例。典型影像学表现:早期关节面模糊,关节间隙增宽;随后关节面糜烂,骨质缺损及破坏,邻近骨质硬化;严重者死骨形成、关节半脱位、纤维性或骨性关节强直,可伴冷脓肿和窦道形成。结论 影像学能明确显示骶髂关节破坏的程度、类型、脓肿位置及邻近结构,对骶髂关节结核的诊断及鉴别诊断有重要作用。

Image analysis of 18 cases of sacroiliac joint tuberculosis

Objective To evaluate the value of imaging manifestations in diagnosing the sacroiliac joint tuberculosis.Methods eighteen cases including 5 males and 13 females with clinically-proved sacroiliac joint tuberculosis were collected,and correlative imaging manifestations and clinical data were retrospectively analyzed.Results All the cases had unilateral joint lesion.Of the 18 cases,the lesions involved right sacroiliac joint in 10 cases(56%),and left sacroiliac joint in 8 cases(44%).The typical imaging findings were as followed:in the early period,the manifestations presented as blurred articular surface and widened joint space;subsequently erosive articular surface,bone defect,bone destruction,and adjacent bone sclerosis could be seen;severe cases manifested as sequestra,joint subluxation,and fibrous or bony ankylosis associated with cold abscess and sinus.Conclusions Imaging can well demonstrate the degree and the type of sacroiliac joint destruction,the region of abscess and adjacent structures,so it has significant effect on diagnosing and differentiating the sacroiliac joint tuberculosis.