Based on the statistical results of the relationship between the large earthquakes surrounding Xinjiang and moderate earthquakes within Xinjiang since 1950,this article calculates the Coulomb failure stress change pro...Based on the statistical results of the relationship between the large earthquakes surrounding Xinjiang and moderate earthquakes within Xinjiang since 1950,this article calculates the Coulomb failure stress change produced by the three groups of large earthquakes surrounding Xinjiang during the large earthquake active period outside Xinjiang and the quiet period inside Xinjiang from 1976 to 2007,and analyzes Xinjiang's moderate earthquake activity features in the three years after the large earthquakes surrounding Xinjiang. It then discusses the influence of large earthquake activity surrounding Xinjiang on seismic activity within Xinjiang. The research results show that the large earthquake activity surrounding Xinjiang may to a certain extent slow down the preparation process of moderate earthquakes in Xinjiang.展开更多
The mortality of conservative treatment and the risk resulting from operation for elderly patients with femoral intertrochanteric fractures are high. Safety in the perioperative period and quicker recovery should be p...The mortality of conservative treatment and the risk resulting from operation for elderly patients with femoral intertrochanteric fractures are high. Safety in the perioperative period and quicker recovery should be placed at the top priority for elderly patients with hip fractures. We reported a case of 109- year-old female patient with intertrochanteric fracture who has undergone the hemiarthroplasty in our center recently. With sciatic nerve and lateral cutaneous nerve block anesthesia, she was offered the artificial femoral head replacement in the lumbar plexus block after sufficient preoperative preparation. The surgery went well with minimally invasive cut, and the patient＇s recovery was satisfactory.展开更多
Objective： To observe the clinical results of proximal femoral nail anti-rotation （PFNA） combined with zoledronic acid injection in the treatment of osteoporotic intertrochanteric fractures in the elderly. Methods...Objective： To observe the clinical results of proximal femoral nail anti-rotation （PFNA） combined with zoledronic acid injection in the treatment of osteoporotic intertrochanteric fractures in the elderly. Methods： 60 elderly patients with osteoporotic intertrochanteric fractures were diagnosed using a dual energy X-ray bone density instrument. Patients were randomly divided into treatment or control groups （30 cases in each group）. Patients in both groups were treated by closed/open reduction and internal fixation using PFNA. In the treatment group, patients received one zoledronic phosphonic acid injection of 5 mg/100 ml via intravenous drip, in addition to 600 mg of Cakrate D （qd） and 0.25 μg of alpha ossification alcohol （qd）. The control group received 600 mg of Caltrate D （qd） and 0.25 μg of alpha ossification alcohol （qd）. The oral drugs were administered for 12 months. Bone pain relief was observed, and changes in the bone mineral density （BMD） of the lumbar and health-side hip were recorded. Clinical results were evaluated using the Visual Analogue Scale （VAS）, Harris joint function score, and Osteo- porosis Quality of Life Scale （OQOLS）. Results： Compared with the control group, bone pain symptoms wene significantly alleviated （p 〈 0.05） in the treatment group. In the treatment and control groups, both between-group and within-group differences in BMD were significantly increased in L1-4, femoral neck and trochanter （p 〈 0.05）. No significant differences were found between the two groups in regard to the involved hip or the total rate of improvement at the end of the follow-up period, although cases in the treatment group had higher OQOLS scores than those of the controls （p = 0.04）. Cases in the treatment group healed more quickly than those in the control group [（13 ± 3.2） weeks vs （15 ± 4.6） weeks, p = 0.02]. During the follow^up period, cases in the treatment group had no new fractures, whereas 2 new cases of hip fracture and 2 cases of distal radial fractures were observed among the controls. Conclusion： Zoledronic acid injection combined with PFNA is a favorable treatment option for the elderly patients with osteoporotic intertrochanteric fracture. It can effectivelly relieve bone pain, increase bone density, improve quality of life, reduce the occurrence of new fractures and promote fracture healing.展开更多
A 34-year-old man with a subtrochanteric osteoid osteoma localized to the lateral cortex of the left femur is reported. The patient presented with mild spontaneous pain of the lateral thigh and knee. He refused a radi...A 34-year-old man with a subtrochanteric osteoid osteoma localized to the lateral cortex of the left femur is reported. The patient presented with mild spontaneous pain of the lateral thigh and knee. He refused a radiographic examination and was treated as a greater trochanteric pa in syndrome for 9 months. He was then admitted with a transcervical fracture of the neck of the left femur after a fall from standing height. The fracture was fixed with 3 cannulated screws and healed uneventfully. His symptoms worsened after the first postoperative year. Eighteen months postoperatively the pain was dull, worsening at night, and relieved only with anti-inflammatory drugs, and he had a limp. New radiographs and tomograms were indicative of a lateral subtrochanteric osteoid osteoma with a subperiosteal localization. The lesion was treated successfully with surgical excision of a piece of reactive bone including the nidus.展开更多
Purpose： To investigate the potential correlation between two different types of hip fractures and serum calcium levels. Methods： We consecutively studied 101 cases of femoral neck fracture and 95 cases of femoral i...Purpose： To investigate the potential correlation between two different types of hip fractures and serum calcium levels. Methods： We consecutively studied 101 cases of femoral neck fracture and 95 cases of femoral inter- trochanteric fracture between January 2011 and December 2013. Fasting blood samples were taken and serum calcium measurements were performed respectively in three periods： the time of admission, postoperation, and discharge. Creatinine, alkaline phosphatase and albumin were also analyzed. Results： Considering the levels of serum calcium between two groups at the time of admission, post- operation and discharge, there was significant difference at admission and discharge （p 〈 0.05）, while there was no significant difference at the time of postoperation （p 〉 0.05）. The magnitude of serum calcium fluctuation was larger in femoral neck group than femoral intertrochanteric group. Concerning alkaline phosphatase and albumin levels at admission, there was no significant difference between two groups （p 〉 0.05）. Conclusion： The capability of reservation and restoration of serum calcium in patients with femoral neck fracture is better than that in patients with femoral intertrochanteric fracture. A low serum calcium level may be susceptible to femoral intertrochanteric fracture.展开更多
基金sponsored the National Key TechnologyR&D Program (2006BAC 01B03-04-02),China
文摘Based on the statistical results of the relationship between the large earthquakes surrounding Xinjiang and moderate earthquakes within Xinjiang since 1950,this article calculates the Coulomb failure stress change produced by the three groups of large earthquakes surrounding Xinjiang during the large earthquake active period outside Xinjiang and the quiet period inside Xinjiang from 1976 to 2007,and analyzes Xinjiang's moderate earthquake activity features in the three years after the large earthquakes surrounding Xinjiang. It then discusses the influence of large earthquake activity surrounding Xinjiang on seismic activity within Xinjiang. The research results show that the large earthquake activity surrounding Xinjiang may to a certain extent slow down the preparation process of moderate earthquakes in Xinjiang.
文摘The mortality of conservative treatment and the risk resulting from operation for elderly patients with femoral intertrochanteric fractures are high. Safety in the perioperative period and quicker recovery should be placed at the top priority for elderly patients with hip fractures. We reported a case of 109- year-old female patient with intertrochanteric fracture who has undergone the hemiarthroplasty in our center recently. With sciatic nerve and lateral cutaneous nerve block anesthesia, she was offered the artificial femoral head replacement in the lumbar plexus block after sufficient preoperative preparation. The surgery went well with minimally invasive cut, and the patient＇s recovery was satisfactory.
文摘Objective： To observe the clinical results of proximal femoral nail anti-rotation （PFNA） combined with zoledronic acid injection in the treatment of osteoporotic intertrochanteric fractures in the elderly. Methods： 60 elderly patients with osteoporotic intertrochanteric fractures were diagnosed using a dual energy X-ray bone density instrument. Patients were randomly divided into treatment or control groups （30 cases in each group）. Patients in both groups were treated by closed/open reduction and internal fixation using PFNA. In the treatment group, patients received one zoledronic phosphonic acid injection of 5 mg/100 ml via intravenous drip, in addition to 600 mg of Cakrate D （qd） and 0.25 μg of alpha ossification alcohol （qd）. The control group received 600 mg of Caltrate D （qd） and 0.25 μg of alpha ossification alcohol （qd）. The oral drugs were administered for 12 months. Bone pain relief was observed, and changes in the bone mineral density （BMD） of the lumbar and health-side hip were recorded. Clinical results were evaluated using the Visual Analogue Scale （VAS）, Harris joint function score, and Osteo- porosis Quality of Life Scale （OQOLS）. Results： Compared with the control group, bone pain symptoms wene significantly alleviated （p 〈 0.05） in the treatment group. In the treatment and control groups, both between-group and within-group differences in BMD were significantly increased in L1-4, femoral neck and trochanter （p 〈 0.05）. No significant differences were found between the two groups in regard to the involved hip or the total rate of improvement at the end of the follow-up period, although cases in the treatment group had higher OQOLS scores than those of the controls （p = 0.04）. Cases in the treatment group healed more quickly than those in the control group [（13 ± 3.2） weeks vs （15 ± 4.6） weeks, p = 0.02]. During the follow^up period, cases in the treatment group had no new fractures, whereas 2 new cases of hip fracture and 2 cases of distal radial fractures were observed among the controls. Conclusion： Zoledronic acid injection combined with PFNA is a favorable treatment option for the elderly patients with osteoporotic intertrochanteric fracture. It can effectivelly relieve bone pain, increase bone density, improve quality of life, reduce the occurrence of new fractures and promote fracture healing.
文摘A 34-year-old man with a subtrochanteric osteoid osteoma localized to the lateral cortex of the left femur is reported. The patient presented with mild spontaneous pain of the lateral thigh and knee. He refused a radiographic examination and was treated as a greater trochanteric pa in syndrome for 9 months. He was then admitted with a transcervical fracture of the neck of the left femur after a fall from standing height. The fracture was fixed with 3 cannulated screws and healed uneventfully. His symptoms worsened after the first postoperative year. Eighteen months postoperatively the pain was dull, worsening at night, and relieved only with anti-inflammatory drugs, and he had a limp. New radiographs and tomograms were indicative of a lateral subtrochanteric osteoid osteoma with a subperiosteal localization. The lesion was treated successfully with surgical excision of a piece of reactive bone including the nidus.
文摘Purpose： To investigate the potential correlation between two different types of hip fractures and serum calcium levels. Methods： We consecutively studied 101 cases of femoral neck fracture and 95 cases of femoral inter- trochanteric fracture between January 2011 and December 2013. Fasting blood samples were taken and serum calcium measurements were performed respectively in three periods： the time of admission, postoperation, and discharge. Creatinine, alkaline phosphatase and albumin were also analyzed. Results： Considering the levels of serum calcium between two groups at the time of admission, post- operation and discharge, there was significant difference at admission and discharge （p 〈 0.05）, while there was no significant difference at the time of postoperation （p 〉 0.05）. The magnitude of serum calcium fluctuation was larger in femoral neck group than femoral intertrochanteric group. Concerning alkaline phosphatase and albumin levels at admission, there was no significant difference between two groups （p 〉 0.05）. Conclusion： The capability of reservation and restoration of serum calcium in patients with femoral neck fracture is better than that in patients with femoral intertrochanteric fracture. A low serum calcium level may be susceptible to femoral intertrochanteric fracture.
