【摘要】 目的探讨成人股骨头无菌坏死的早期X射线、CT表现并进行对比研究。方法收集具有典型X射线平片、CT表现并经病理或随访证实的80例成人股骨头无菌坏死患者的X射线平片和CT片,分组对比分析其征象及变化。结果CT表现：股骨头完整组40例,62个关节,出现高密度硬化股骨头49个,在高密度周围出现囊性变伴低密度区者26个,12个股骨头内出现气体密度影；股骨头塌陷组40例,71个关节,其中8个股骨头显示单纯高密度硬化,63个在硬化区周围还伴有低密度区,有22个股骨头内出现气体密度影。结论股骨头内出现单纯高密度硬化、气体密度影及囊性变为本病的早期影像征象,其特殊的CT表现比X射线平片具有更重要的临床诊断价值。更多还原

【Abstract】 Objective To study the early imaging signs of aseptic osteonecrosis of the femoral head in adults.Methods The X-ray plain films and CT scans of 80 eases with this condition were analyzed. Results There were 40 hip joints with the femoral head normal in shape,including 49 femoral heads with only high-density sclerosis and 26 ones with high-density and low-density areas.Air-filled cysts appeared in 12 femoral heads.In the other 40 hip joints,the femoral heads were depressed and manifested purely high- density sclerosis in 8 and mixed-density areas in 63.Air-filled cysts appeared in 22 femoral heads. Conclusions Purely high-density sclerosis and air density in the femoral heads are the early signs of aseptic osteneerosis of the femoral head.The special CT signs are of great diagnostic value and can provide more information for the surgeons.更多还原