目的:通过与化脓性颌骨骨髓炎进行对比,总结药物相关性颌骨坏死(medication-related osteonecrosis of thejaw,MRONJ)的影像学及临床特点.方法:回顾性分析MRONJ与化脓性颌骨骨髓炎患者的影像学和临床资料.结果:MRONJ病例中:100%(对比化脓性颌骨骨髓炎的14.0%)见骨硬化,30.8%(对比5.0%)见多象限骨硬化,43.6%(对比4.0%)见死骨,25.6%(对比0%)见死骨伴多象限骨硬化;89.7%(对比20.0%)诱因是拔牙.结论:相较于化脓性颌骨骨髓炎,MRONJ观察到骨硬化、多象限骨硬化和死骨影像表现的概率更高,多象限骨硬化伴死骨影像出现时提示其很可能是MRONJ;拔牙是MRONJ的最主要诱因.
Study on Imaging and Clinical Features of MRONJ by Comparing with Suppurative Osteomyelitis of the Jaw
Objective:To summerize the imaging and clinical features of MRONJ(medication-related osteonecrosis of the jaw)by comparing with suppurative osteomyelitis of the jaw.Methods:The imaging and clinical data of patients with MRONJ were retrospectively analyzed with those of patients with suppurative osteomyelitis of the jaw.Results:In the cases of MRONJ,100%(compared to 14.0%of suppurative osteomyelitis of the jaw)were observed with osteosclerosis,30.8%(compared to 5.0%)were observed with multiquadrant osteosclerosis,43.6%(compared to 4.0%)were observed with sequestrum,25.6%(compared to 0%)were observed with sequestrum and multiquadrant osteosclerosis,and 89.7%(compared to 20.0%)of the inducements were tooth extraction.Conclusion:Compared to suppurative osteomyelitis of the jaw,the probability of oberving osteosclero-sis,multiquadrant osteosclerosis,and sequestrum on MRONJ are higher,and when multiquadrant osteosclerosis and sequestrum appear simultaneously,it is very likely to be MRONJ.Tooth extraction is the most major induce-ment of MRONJ.
medication-related osteonecrosis of the jawbiphosphonateimagigng featuresequestrumosteosclerosis