Objective. To investigate the unique characteristics and treatment of thoracic spine fractures. Methods. Seventy seven patients with thoracic spine fractures were retrospectively reviewed. Of these, there were 37 comp...Objective. To investigate the unique characteristics and treatment of thoracic spine fractures. Methods. Seventy seven patients with thoracic spine fractures were retrospectively reviewed. Of these, there were 37 compression fractures, 34 fracture dislocations, 3 burst fractures and 3 burst dislocations. Twenty six patients had a complete lesion of the spinal cord, 14 sustained a neurologically incomplete injury, and 37 were neurologically intact. Fifty three patients were treated nonoperatively and 24 treated operatively. Results. All patients were followed up for 2～15 years. None of the 26 patients with a complete lesion recovered any significant function. Of 37 neurologically intact patients, 13 had local pain although all of them remained normal function. Two of 14 patients with incomplete paraplegia returned to normal, 7 recovered some function and 5 did not recovered. Conclusions. Because of the unique anatomy and biomechanics of the thoracic spine, the classification commonly applied to thoracolumbar fractures is not suitable for thoracic fractures. Fusion and instrumentation are indicated when the fractures are unstable, while patients with incomplete lesion of the spinal cord may be the candidates for supplemented decompression.展开更多
Objective ： To study the effect of allograft compound vertebra on vertebral reconstruction in rabbits so as to provide biomechanical direction for manufacturing and selecting vertebral reconstruction materials. Meth...Objective ： To study the effect of allograft compound vertebra on vertebral reconstruction in rabbits so as to provide biomechanical direction for manufacturing and selecting vertebral reconstruction materials. Methods： Twenty-five healthy New Zealand white rabbits were divided randomly into three groups： normal group （ Group A, n = 5 ） ,iliac bone graft group （ Group B, n = 10） and allograft compound vertebra group （ Group C, n = 10）. After C4 was resected, iliac bone implantation and allograft bone cage transplantation were fulfilled in Group B and Group C, respectively. Every 5 rabbits from Group B and Group C were selected to test the biomechanical strength and biological activity one and two months postoperatively. Results： No significant statistical difference was found between Group A and Group C one and two monthspostoperatively （ P 〉 0.05 ）. The biomechanical strength of Group B was much weaker than that of Group A and Group C one month postoperatively （P 〈 0.05 ）, but at two months postoperatively, no statistical difference was found among the three groups. The biological activity and vertebral moulding ability of Group C were better than those of Group B at one and two months postoperatively. Conclusions： Compound vertebra, which is made up of allograft cortical bone cage and autogenous cancellous bone, shows instantaneous and permanent biomechanical stability and biological activity, therefore, it is an ideal material for vertebral reconstruction.展开更多
Since the late 20th century owing to the improvement of spinal surgery techniques, the diagnosis and treatment of thoracolumbar fracture have been perfected more and more. Although the advent of modern spinal surgery ...Since the late 20th century owing to the improvement of spinal surgery techniques, the diagnosis and treatment of thoracolumbar fracture have been perfected more and more. Although the advent of modern spinal surgery in China was late, we have gained some advanced achievements owing to various international communications benefited from the open policy. Therefore, it is essential to evaluate the current status and perspective of diagnosis and treatment of thoracolumbar fracture. There are several issues we would like to discuss here.展开更多
文摘Objective. To investigate the unique characteristics and treatment of thoracic spine fractures. Methods. Seventy seven patients with thoracic spine fractures were retrospectively reviewed. Of these, there were 37 compression fractures, 34 fracture dislocations, 3 burst fractures and 3 burst dislocations. Twenty six patients had a complete lesion of the spinal cord, 14 sustained a neurologically incomplete injury, and 37 were neurologically intact. Fifty three patients were treated nonoperatively and 24 treated operatively. Results. All patients were followed up for 2～15 years. None of the 26 patients with a complete lesion recovered any significant function. Of 37 neurologically intact patients, 13 had local pain although all of them remained normal function. Two of 14 patients with incomplete paraplegia returned to normal, 7 recovered some function and 5 did not recovered. Conclusions. Because of the unique anatomy and biomechanics of the thoracic spine, the classification commonly applied to thoracolumbar fractures is not suitable for thoracic fractures. Fusion and instrumentation are indicated when the fractures are unstable, while patients with incomplete lesion of the spinal cord may be the candidates for supplemented decompression.
基金the Natural Science Fund in Hubei Province(No.2004ABA171).
文摘Objective ： To study the effect of allograft compound vertebra on vertebral reconstruction in rabbits so as to provide biomechanical direction for manufacturing and selecting vertebral reconstruction materials. Methods： Twenty-five healthy New Zealand white rabbits were divided randomly into three groups： normal group （ Group A, n = 5 ） ,iliac bone graft group （ Group B, n = 10） and allograft compound vertebra group （ Group C, n = 10）. After C4 was resected, iliac bone implantation and allograft bone cage transplantation were fulfilled in Group B and Group C, respectively. Every 5 rabbits from Group B and Group C were selected to test the biomechanical strength and biological activity one and two months postoperatively. Results： No significant statistical difference was found between Group A and Group C one and two monthspostoperatively （ P 〉 0.05 ）. The biomechanical strength of Group B was much weaker than that of Group A and Group C one month postoperatively （P 〈 0.05 ）, but at two months postoperatively, no statistical difference was found among the three groups. The biological activity and vertebral moulding ability of Group C were better than those of Group B at one and two months postoperatively. Conclusions： Compound vertebra, which is made up of allograft cortical bone cage and autogenous cancellous bone, shows instantaneous and permanent biomechanical stability and biological activity, therefore, it is an ideal material for vertebral reconstruction.
文摘Since the late 20th century owing to the improvement of spinal surgery techniques, the diagnosis and treatment of thoracolumbar fracture have been perfected more and more. Although the advent of modern spinal surgery in China was late, we have gained some advanced achievements owing to various international communications benefited from the open policy. Therefore, it is essential to evaluate the current status and perspective of diagnosis and treatment of thoracolumbar fracture. There are several issues we would like to discuss here.
