创伤后骨质溶解症X线图像特征

目的 探讨创伤后骨质溶解症的X线表现,提高对该病认识.方法 回顾性分析经临床、病理证实的7例创伤后骨质溶解症X线表现.7例中女5例,男2例.年龄9～56岁,平均34岁.车祸3例,摔伤4例.受伤后距骨质溶解时间分别为18个月1例,10个月2例,6个月2例,3个月2例.结果 受伤时X线示坐、耻骨骨折2例,胫腓骨下段骨折1例,股骨颈骨折1例,肱骨外科颈粉碎性骨折1例,肩锁关节Ⅰ度脱位1例,腕部软组织肿胀1例.X线表现为块状骨质溶解3例,斑片状骨质溶解3例,囊状骨质溶解1例;溶解边缘骨质均无硬化,其中溶解区界限清楚5例,界限不清楚2例;溶解区无残留骨组织4例,残留部分骨组织3例;溶解区附近骨质均未见骨膜增生和骨皮质增厚;骨质修复2例,溶解骨质无修复5例.病理检查显示病变区见大量毛细血管和纤维组织增生,滑膜充血肿胀、增生,肉芽组织增生,骨坏死,破骨细胞活跃,少量炎性细胞,无肿瘤细胞.结论 创伤后骨质溶解症与外伤密切相关,X线表现为块状和斑片状骨质溶解或不规则骨质囊状破坏,早期诊断较难.

Diagnostic X-ray of post-traumatic osteolysis of bone

Objective To study the X-ray findings of post-traumatic osteolysis and to improve the knowledge of that disease.Methods X-ray features of 7 cases of post-traumatic osteolysis confirmed by clinical findings and pathology were reviewed retrospectively.There were 5 females and 2 males.from 9-56 years(mean 34 years)of age.Three patients had traffic accidents and 4 had trauma unrelated to traffic accidents.Osteolysis occurred from 3 to 18 months after trauma(1 case at 18 months,2 cases at 10 months,2 cases at 6 months and 2 cases at 3 months).Results There were 2 pubis fractures,1 distal tibiofibular shaft fracture,1 femoral neck fracture,1 humeral upper end commiuuted fracture,1 shoulder joint dislocation.and 1 soft tissue swelling around the wrist.The X-ray findings are:3 massive osteolysis,3 plaque flake osteolysis and 1 cystic osteolysis.There were no hardening of bony edge at the site of osteolysis in all 7 cases,clear margin in 5 cases and ill-defined margin in 2 cases,no residual bone in osteolytic area in 4 cases and residual bone in octeolytic area in 3 cases,no periosteal reaction and thickerning of bony cortex in osteolytic area in all 7 Cascs,bone repair in 2 cases and no bone repair in 5 cases.Histopathological findings showed:extensive capillary hyperplasia and fibrous tissue hyperplasia;hyperemia and swelling of synvium,proliferation of granulation tissue,osteonecrosis,increased osteoclast activity,some inflammatory cells,no evidence of neoplastic cells in the involved area.Conclusions Posttraumatic osteolysis is closely related to trauma.X-ray findings include massive osteolysis,plaque-like osteolysis,and irregular cystic changes.Early dignosis may be a challenging task.