Thoracic spinal cord stab injuries are rare lesions. A 17-year-old boy was stabbed on his back by his classmate when he bent forward to pick up his cloth from the ground. On admission, he presented with: complete para...Thoracic spinal cord stab injuries are rare lesions. A 17-year-old boy was stabbed on his back by his classmate when he bent forward to pick up his cloth from the ground. On admission, he presented with: complete paraplegia with muscle strength of zero on all muscle groups, complete anesthesia from dermatome 10 and below, acute urinary retention, and a four-centimeter wound on the thoracolumbar region from which cerebrospinal fluid mixed with blood was oozing out. A high-dose methylprednisolone protocol was started (30 mg/kg in one hour and then 5.4 mg/kg over 23 hours) an indwelling urinary catheter placed and sterile dressing of the wound done. Antibiotics and analgesics were also administered. The computed tomography scanning revealed a spinal cord transection at T10-T11 level with incarceration of the broken knife blade. An emergency thoracic laminectomy was performed. Removal of the broken knife blade revealed complete spinal cord transection with a compressive hematoma within the spinal cord which was removed by smooth suction. The spinal dura was sutured and the wound closed in many layers. On day 14 after surgery, sensitivity was recovered with 3 on 5 muscle strength in both lower limbs except for both feet where motor function remained null. Urinary retention and fecal incontinence persisted. The patient was discharged from our service for a rehabilitation center. At 32-month follow-up, neurological examination was unchanged although patient noticed a slight improvement of sphincter disturbances.展开更多
为开发低成本的柔性可穿戴防刺材料,选用线密度为48.2tex的高性能芳纶1414短纤纱线和直径为0.06 mm的304不锈钢长丝,采用包芯纱工艺纺制芳纶/不锈钢长丝包芯、纱,优化纺纱工艺参数,得出最佳纱线包绕数,并用该纱线制备出具有防刺性能的...为开发低成本的柔性可穿戴防刺材料,选用线密度为48.2tex的高性能芳纶1414短纤纱线和直径为0.06 mm的304不锈钢长丝,采用包芯纱工艺纺制芳纶/不锈钢长丝包芯、纱,优化纺纱工艺参数,得出最佳纱线包绕数,并用该纱线制备出具有防刺性能的织物。对纱线的力学性能和织物防刺性能进行测试,改变织物叠层数,探讨叠层数对织物防刺性能的影响。研究结果表明:当纱线的包缠捻度为200捻/m左右时,纱线的断裂强度为77.99 c N/tex,有害毛羽指数为90.42,可满足后续织物的织造;平纹织物的刀刺和锥刺性能与织物叠层数呈正相关线性关系。锥刺和刀刺的刺入原理不同,锥刺的破环机制是纱线滑移,刀刺的破坏机制是纱线切割断裂。展开更多
文摘Thoracic spinal cord stab injuries are rare lesions. A 17-year-old boy was stabbed on his back by his classmate when he bent forward to pick up his cloth from the ground. On admission, he presented with: complete paraplegia with muscle strength of zero on all muscle groups, complete anesthesia from dermatome 10 and below, acute urinary retention, and a four-centimeter wound on the thoracolumbar region from which cerebrospinal fluid mixed with blood was oozing out. A high-dose methylprednisolone protocol was started (30 mg/kg in one hour and then 5.4 mg/kg over 23 hours) an indwelling urinary catheter placed and sterile dressing of the wound done. Antibiotics and analgesics were also administered. The computed tomography scanning revealed a spinal cord transection at T10-T11 level with incarceration of the broken knife blade. An emergency thoracic laminectomy was performed. Removal of the broken knife blade revealed complete spinal cord transection with a compressive hematoma within the spinal cord which was removed by smooth suction. The spinal dura was sutured and the wound closed in many layers. On day 14 after surgery, sensitivity was recovered with 3 on 5 muscle strength in both lower limbs except for both feet where motor function remained null. Urinary retention and fecal incontinence persisted. The patient was discharged from our service for a rehabilitation center. At 32-month follow-up, neurological examination was unchanged although patient noticed a slight improvement of sphincter disturbances.
文摘为开发低成本的柔性可穿戴防刺材料,选用线密度为48.2tex的高性能芳纶1414短纤纱线和直径为0.06 mm的304不锈钢长丝,采用包芯纱工艺纺制芳纶/不锈钢长丝包芯、纱,优化纺纱工艺参数,得出最佳纱线包绕数,并用该纱线制备出具有防刺性能的织物。对纱线的力学性能和织物防刺性能进行测试,改变织物叠层数,探讨叠层数对织物防刺性能的影响。研究结果表明:当纱线的包缠捻度为200捻/m左右时,纱线的断裂强度为77.99 c N/tex,有害毛羽指数为90.42,可满足后续织物的织造;平纹织物的刀刺和锥刺性能与织物叠层数呈正相关线性关系。锥刺和刀刺的刺入原理不同,锥刺的破环机制是纱线滑移,刀刺的破坏机制是纱线切割断裂。
