Objective To test the hypothesis that delayed X-irradiation can enhance the functional and structural recovery of the injured spinal cord in rats. Methods Seventy Sprague-Dawley rots were randomly divided into two gr...Objective To test the hypothesis that delayed X-irradiation can enhance the functional and structural recovery of the injured spinal cord in rats. Methods Seventy Sprague-Dawley rots were randomly divided into two groups, 35 rats in each. The control group sustained a one-minute clip compression （ force of clip was 30 g） injury of the spinal cord at the T2 level, without X-irradiation. The experimental group received X-irradiation 14 days after injury. Neurological function was assessed by the modified Tarlov method, including hind limbs movement, inclined plane, and pain withdrawal. These tests were performed in a blinded fashion at 3, 7, 14, 21, 28, 35, and 42 days after injury. At 43 days after injury, histological examination of the injured spinal cord was performed following decapitation of the rats. Results Sixty-two rats met the experimental requirements （spinal cord injury was similar）, 32 rats in experimental group and 30 rats in control group. Statistically significant difference was observed between the two groups in hind limbs movement and inclined plane （ P 〈0. 01 ）, but not in the pain withdrawal test. The edema and necrosis areas of injured spinal cords in experimental group were less than those in control group, and axons in experimental group were significantly more than those in control group （P 〈0.01）. Conclusion Delayed X-irradiation following spinal cord injury may enhance functional recovery by improving and restoring structural integrity of the injured spinal cord in rats.展开更多
Magnetic induction tomography(MIT) is one of the newest industrial process imaging techniques.Main industrial applications of the MIT imaging are in high conductive flow imaging.However,recently it has been shown that...Magnetic induction tomography(MIT) is one of the newest industrial process imaging techniques.Main industrial applications of the MIT imaging are in high conductive flow imaging.However,recently it has been shown that the MIT may be useful for low conductive process imaging.This paper presents a cost effective hardware design for MIT in industrial applications,called Bath-MKI industrial MIT system.The system comprises 8 inductor coils and has the possibility of expansion to 16 coils.The excitation signals and the measured voltages are generated and measured using a LabView based system.Two 16 by 1 multiplexers are used to select between the coils.Measurements,excitation and multiplexing are all controlled by a National Instrument(NI) USB based DAQ:USB-6259 and a signal generator.Using the same electronics,the prototype is tested with two different coil arrays;one is a small scale ferrite core coil and one larger scale air cored coil.Experimental image reconstruction results are shown using both small scale and large scale coil arrays.展开更多
Objective： To identify radiographic predictors of residual low back pain （LBP） after laminectomy for lumbar canal stenosis Methods： （LCS） Clinical results and radiographic findings in 69 patients who underwent ...Objective： To identify radiographic predictors of residual low back pain （LBP） after laminectomy for lumbar canal stenosis Methods： （LCS） Clinical results and radiographic findings in 69 patients who underwent single level laminectomy for LCS were retrospectively reviewed. Patients who had an improvement in LBP scores evaluated by Japanese Orthopaedic Association （JOA） scoring system during the fol- low-up periods were classified as the recovery group, and others were classified as the non-recovery group. Patients＇ clinical data and radiographic parameters like lordosis angle, range of motion and intervertebral rotational angle were analyzed using binary logistic regression analysis to detect factors significantly related with the occurrence of residual LBP. Results： The average preoperative JOA score of 14.8± 5.05 improved to 21.59±5.51 at the final follow-up. Binary logistic regression analysis revealed that significant predictors of residual LBP were preoperative lumbar lordosis angle and range of motion. Conclusions： Our results suggest that patients with flat back and limited lumbar mobility before surgery tend to have poor results in terms of LBP. Therefore, these sagittal radiographic parameters should be taken into account when choosing laminectomy as the surgical option for LCS.展开更多
Objective To explore the clinical efficacy of muscle regions of meridians needling method for refractory facial paralysis affecting different locations.Methods A total of 110 participants were randomized into an obser...Objective To explore the clinical efficacy of muscle regions of meridians needling method for refractory facial paralysis affecting different locations.Methods A total of 110 participants were randomized into an observation group and a control group,with 55 cases in each group.The observation group was treated with muscle regions of meridians needling method,and the control group was treated with conventional facial three-line needling method.The clinical efficacy was evaluated four weeks after the treatment.And the infrared imaging spectra of the two groups were examined.Results The total effective rate of the observation group was higher than that of the control group(P<0.05),and its curative effect for refractory facial paralysis located above the geniculate ganglion was better than that of the control group(P<0.05).The color scale distribution of different disease locations in the two groups varied significantly(P<0.05),the higher the disease location,the higher the occurrence rate of cool zone and low temperature zone.After treatment,the reductions of the facial and periotic temperature difference between the healthy side and the affected side in the observation group were statistically different from those in the control group(P<0.05).Conclusion Muscle regions of meridians needling method has a better effect than facial three-line needling method for refractory facial paralysis.It can promote the microcirculation of the affected side of the face,improve the blood and oxygen supply to local tissues,and thus promote the repair of the peripheral facial nerve.展开更多
The authors reported the case of a 27- year-old man who sustained an irreducible postero-lateral traumatic dislocation of the hip with capsular and labral entrapment. Initial X-rays showed only a small acetabular frag...The authors reported the case of a 27- year-old man who sustained an irreducible postero-lateral traumatic dislocation of the hip with capsular and labral entrapment. Initial X-rays showed only a small acetabular fragment. After two attempts to reduce the hip with muscle paralysis under general anaesthesia failed, the patient was treated by immediate open reduction through a posterolateral approach. Surgical exploration of the hip revealed a small osteochondral fragment attached to a large piece of labrum and capsule, clogging the acetabulum. The femoralhead crossed over the torn capsule with a buttonhole effect. These elements were relieved, the bone fragment was fixed with a 2 mm screw and the capsule was repaired. At the 10- year follow-up, the functional outcome was excellent with a Harris score of 100 points and no signs of necrosis or osteoarthritis. The authors propose a literature review of this uncommon lesion.展开更多
文摘Objective To test the hypothesis that delayed X-irradiation can enhance the functional and structural recovery of the injured spinal cord in rats. Methods Seventy Sprague-Dawley rots were randomly divided into two groups, 35 rats in each. The control group sustained a one-minute clip compression （ force of clip was 30 g） injury of the spinal cord at the T2 level, without X-irradiation. The experimental group received X-irradiation 14 days after injury. Neurological function was assessed by the modified Tarlov method, including hind limbs movement, inclined plane, and pain withdrawal. These tests were performed in a blinded fashion at 3, 7, 14, 21, 28, 35, and 42 days after injury. At 43 days after injury, histological examination of the injured spinal cord was performed following decapitation of the rats. Results Sixty-two rats met the experimental requirements （spinal cord injury was similar）, 32 rats in experimental group and 30 rats in control group. Statistically significant difference was observed between the two groups in hind limbs movement and inclined plane （ P 〈0. 01 ）, but not in the pain withdrawal test. The edema and necrosis areas of injured spinal cords in experimental group were less than those in control group, and axons in experimental group were significantly more than those in control group （P 〈0.01）. Conclusion Delayed X-irradiation following spinal cord injury may enhance functional recovery by improving and restoring structural integrity of the injured spinal cord in rats.
文摘Magnetic induction tomography(MIT) is one of the newest industrial process imaging techniques.Main industrial applications of the MIT imaging are in high conductive flow imaging.However,recently it has been shown that the MIT may be useful for low conductive process imaging.This paper presents a cost effective hardware design for MIT in industrial applications,called Bath-MKI industrial MIT system.The system comprises 8 inductor coils and has the possibility of expansion to 16 coils.The excitation signals and the measured voltages are generated and measured using a LabView based system.Two 16 by 1 multiplexers are used to select between the coils.Measurements,excitation and multiplexing are all controlled by a National Instrument(NI) USB based DAQ:USB-6259 and a signal generator.Using the same electronics,the prototype is tested with two different coil arrays;one is a small scale ferrite core coil and one larger scale air cored coil.Experimental image reconstruction results are shown using both small scale and large scale coil arrays.
文摘Objective： To identify radiographic predictors of residual low back pain （LBP） after laminectomy for lumbar canal stenosis Methods： （LCS） Clinical results and radiographic findings in 69 patients who underwent single level laminectomy for LCS were retrospectively reviewed. Patients who had an improvement in LBP scores evaluated by Japanese Orthopaedic Association （JOA） scoring system during the fol- low-up periods were classified as the recovery group, and others were classified as the non-recovery group. Patients＇ clinical data and radiographic parameters like lordosis angle, range of motion and intervertebral rotational angle were analyzed using binary logistic regression analysis to detect factors significantly related with the occurrence of residual LBP. Results： The average preoperative JOA score of 14.8± 5.05 improved to 21.59±5.51 at the final follow-up. Binary logistic regression analysis revealed that significant predictors of residual LBP were preoperative lumbar lordosis angle and range of motion. Conclusions： Our results suggest that patients with flat back and limited lumbar mobility before surgery tend to have poor results in terms of LBP. Therefore, these sagittal radiographic parameters should be taken into account when choosing laminectomy as the surgical option for LCS.
文摘Objective To explore the clinical efficacy of muscle regions of meridians needling method for refractory facial paralysis affecting different locations.Methods A total of 110 participants were randomized into an observation group and a control group,with 55 cases in each group.The observation group was treated with muscle regions of meridians needling method,and the control group was treated with conventional facial three-line needling method.The clinical efficacy was evaluated four weeks after the treatment.And the infrared imaging spectra of the two groups were examined.Results The total effective rate of the observation group was higher than that of the control group(P<0.05),and its curative effect for refractory facial paralysis located above the geniculate ganglion was better than that of the control group(P<0.05).The color scale distribution of different disease locations in the two groups varied significantly(P<0.05),the higher the disease location,the higher the occurrence rate of cool zone and low temperature zone.After treatment,the reductions of the facial and periotic temperature difference between the healthy side and the affected side in the observation group were statistically different from those in the control group(P<0.05).Conclusion Muscle regions of meridians needling method has a better effect than facial three-line needling method for refractory facial paralysis.It can promote the microcirculation of the affected side of the face,improve the blood and oxygen supply to local tissues,and thus promote the repair of the peripheral facial nerve.
文摘The authors reported the case of a 27- year-old man who sustained an irreducible postero-lateral traumatic dislocation of the hip with capsular and labral entrapment. Initial X-rays showed only a small acetabular fragment. After two attempts to reduce the hip with muscle paralysis under general anaesthesia failed, the patient was treated by immediate open reduction through a posterolateral approach. Surgical exploration of the hip revealed a small osteochondral fragment attached to a large piece of labrum and capsule, clogging the acetabulum. The femoralhead crossed over the torn capsule with a buttonhole effect. These elements were relieved, the bone fragment was fixed with a 2 mm screw and the capsule was repaired. At the 10- year follow-up, the functional outcome was excellent with a Harris score of 100 points and no signs of necrosis or osteoarthritis. The authors propose a literature review of this uncommon lesion.
