【摘要】 目的 总结尺骨撞击综合征的X线及MRI影像学表现及诊断要点。方法 对29例确诊的尺骨撞击综合征进行分析。29例患者中2例为双侧,全部病例均进行X线检查,MRI检查11例。结果 本组29例患者均有腕部尺侧不同程度疼痛;尺骨阳性变异25例（包含2例双侧）,中性变异4例。X线检查发现月骨及三角骨坏死21例;MRI检查的11例均发现腕骨不同程度信号改变,主要表现为长T₁长T₂信号,有4例于T₁上在低信号病灶内见骨髓样高信号区。结论 结合临床资料及尺骨阳性变异,如果X线、MRI发现月骨尺侧近端及三角骨近端外侧或腰部坏死征象时可确诊此征。更多还原

【Abstract】 Objective To study X-ray and MRI features of ulnar impaction syndrome.Methods X-ray and MR imaging data in 29patients diagnosed as ulnar impaction syndrome were analysed.Of 29 cases,bilateral ulna involved in 2.X-ray examination were performed in all cases,while MRI examination were performed in 11 cases of them.Results All cases complained pain at ulnar side of wrist.The ulnar variance included:positive variance in 25 cases（including 2 cases of bilateral side） and neutral variance in 4 cases.21cases had necrosis of lunate and triquetrum bone.The abnormal signal intensity in different degrees was found in wrist by MRI in 11cases,which appeared as long T₁ and long T₂ signal intensity and myeloid high-intensity zone was presented in low-intensity lesions on T₁ in 4 cases.Conclusion Based on clinical symptoms and positive ulnar variance,ulnar impaction syndrome can be dignosed if avascular necrosis of the proximal end of lunate on the ulnar side and lateral or（and） triquetrum is found by X-ray and MRI.更多还原