Objective To investigate the relationship between lumbosacral Modic changes(MCs)and their types and osteoporosis in patients with low back pain.Methods A total of 204 female patients with low back pain who were treated in Xuzhou City Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Chinese Medicine from January 2021 to September 2024 were selected as study objects.According to magnetic resonance imaging results,the patients were divided into MCs group(139 cases)and non-MCs group(65 cases).MCs group was divided into type Ⅰ group(33 cases),type Ⅱgroup(90 cases)and type Ⅲ group(16 cases)according to MCs type.The age,hip bone mineral density(BMD)and T value of all groups were compared.Results There was no significant difference in age,hip BMD and T value between MCs group and non-MCs group(P＞0.05).Hip BMD and T values of four groups were type Ⅲ group＞non-MCs group＞type Ⅱ group＞typeⅠ group.Most of patients in type Ⅲ group had normal bone mass,and most of patients in other three groups had decreased bone mass or osteoporosis.There was no significant difference in hip BMD and T value between type Ⅱ group and non-MCs group(P＞0.05).The hip BMD and corresponding T values of patients in group Ⅲ significantly higher than the other three groups(P＜0.05).The hip BMD and corresponding T values of type Ⅰ patients were significantly lower than those of the other three groups(P＜0.05).Conclusion Patients with low back pain have different tendency of MCs with different bone mass.High bone mass(normal bone mass)is more likely to develop type Ⅲ MCs,and low bone mass or osteoporosis is more likely to develop type Ⅰ MCs.Anti-osteoporosis therapy for patients with type Ⅰ MCs should be emphasized.

Objective To investigate the relationship between lumbosacral Modic changes(MCs)and their types and osteoporosis in patients with low back pain.Methods A total of 204 female patients with low back pain who were treated in Xuzhou City Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Chinese Medicine from January 2021 to September 2024 were selected as study objects.According to magnetic resonance imaging results,the patients were divided into MCs group(139 cases)and non-MCs group(65 cases).MCs group was divided into type Ⅰ group(33 cases),type Ⅱgroup(90 cases)and type Ⅲ group(16 cases)according to MCs type.The age,hip bone mineral density(BMD)and T value of all groups were compared.Results There was no significant difference in age,hip BMD and T value between MCs group and non-MCs group(P＞0.05).Hip BMD and T values of four groups were type Ⅲ group＞non-MCs group＞type Ⅱ group＞typeⅠ group.Most of patients in type Ⅲ group had normal bone mass,and most of patients in other three groups had decreased bone mass or osteoporosis.There was no significant difference in hip BMD and T value between type Ⅱ group and non-MCs group(P＞0.05).The hip BMD and corresponding T values of patients in group Ⅲ significantly higher than the other three groups(P＜0.05).The hip BMD and corresponding T values of type Ⅰ patients were significantly lower than those of the other three groups(P＜0.05).Conclusion Patients with low back pain have different tendency of MCs with different bone mass.High bone mass(normal bone mass)is more likely to develop type Ⅲ MCs,and low bone mass or osteoporosis is more likely to develop type Ⅰ MCs.Anti-osteoporosis therapy for patients with type Ⅰ MCs should be emphasized.

[Objective]To introduce a surgical technique used in the treatment of giant cell tumor of bone.[Method]Twenty-one patients were treated in our hospital from 1995 to 2003 for bone tumors of Campanacci Ⅰ~Ⅱ.All patients underwent curettage and "T" shape autologous bone transplantation and phenol.The patients were followed up for 18~24 months.[Result]Eighteen patients were healed on the basis of the duration,all knees presented no function limited.Two patients had local recurrence 8 to 10 months after the treatment.[Conclusion]For the giant cell tumor of bone around the knee,curettage and adjuvant "T" shape autologous bone transplantation is a good alternative method of reconstruction.

[Objective]To analyze the reasons of the missed and misdiagnosis of popliteal artery injury associated with knee dislocations, so that the patients can be diagnosed as early as possible.Amputation can be avoided.[Method]Twelve patients admitted in our hospital 1998～2003 who were misdiagnosed in other hospitals.Five patients had compound injured.The misdiagnosis time was 8～50 hours,meaned 22.6 hours.Five patients had an arteriogram after registes,one of them was recanalizated in radiology department.Other 6 patients were oqerated with saphenous vein bypass grafting,2 patients were anastomosed the end to the end and 3 patients were amputated directly.[Result]Three patients were healed completely,2 patients remained ischemic symptoms,4 patients were operated again with amputation.[Conclusion]There are four reasons for the missed and misdiagnosis:a.The doctors were not familiar with the anatomy of the popliteal artery;b.The knee was automatically reduction in the process of transmitting.There was no deformity when arriving at the hospital;c.The patients were severely injuried and the knee dislocations was ignored.d.The physical examination was not carefully done.