{"title":"[Variety in radicular symptoms and signs at the lumbosacral region].","authors":"M Hasue","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":19640,"journal":{"name":"Nihon Seikeigeka Gakkai zasshi","volume":"70 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19788018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Total health promotion plan for laborers--physical exercise and bone metabolism].","authors":"S Niwa, F Takayanagi","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":19640,"journal":{"name":"Nihon Seikeigeka Gakkai zasshi","volume":"70 1","pages":"17-27"},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19788020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
To investigate the pathogenesis of osteoarthrosis, we have performed biochemical and morphological studies, other than roentgenological examination, on the soft tissues. Biochemical analyses of collagen were performed on muscles (gluteus medius) in normal and in pathological cases. In the terminal stage of osteoarthrosis, we observed more immature collagen fibers in muscles, than in normal cases. In the preosteoarthrosis stage, immature collagen formation was inconsistent with various degrees of immaturity observed. Morphologically, irregularity in the muscle fibers and interfascicular-fibrosis was observed in the gluteus medius only at the terminal stage but not at the preosteoarthrosis stage. In some cases, we observed a predominance and/or grouping of type 1 fibers. Among the 20 cases with preosteoarthrosis, 3 cases (15%) showed marked biochemical changes in both quantity and quality of collagen fibers in the gluteus medius, as compared with cases at the terminal stage. These findings may be valuable in studying the onset and development of the pathophysiology of osteoarthrosis.
{"title":"[Biochemical and morphological studies on soft tissues in hip osteoarthrosis].","authors":"T Tsuchimochi","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>To investigate the pathogenesis of osteoarthrosis, we have performed biochemical and morphological studies, other than roentgenological examination, on the soft tissues. Biochemical analyses of collagen were performed on muscles (gluteus medius) in normal and in pathological cases. In the terminal stage of osteoarthrosis, we observed more immature collagen fibers in muscles, than in normal cases. In the preosteoarthrosis stage, immature collagen formation was inconsistent with various degrees of immaturity observed. Morphologically, irregularity in the muscle fibers and interfascicular-fibrosis was observed in the gluteus medius only at the terminal stage but not at the preosteoarthrosis stage. In some cases, we observed a predominance and/or grouping of type 1 fibers. Among the 20 cases with preosteoarthrosis, 3 cases (15%) showed marked biochemical changes in both quantity and quality of collagen fibers in the gluteus medius, as compared with cases at the terminal stage. These findings may be valuable in studying the onset and development of the pathophysiology of osteoarthrosis.</p>","PeriodicalId":19640,"journal":{"name":"Nihon Seikeigeka Gakkai zasshi","volume":"69 12","pages":"1248-58"},"PeriodicalIF":0.0,"publicationDate":"1995-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19567066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
To investigate the role of the ligamentous complex in the stability of the atlanto-axial joint, the macroscopic anatomy of the occipito-atlanto-axial complex was studied in 44 cadavers involving the cruciate ligament of atlas, alar ligament, and the anterior atlanto-axial ligament (AADL). The transverse ligament (TL) had two layers, one was membranous tissue and the other was ligamentous. The mean length of the TL was 19.7 mm (range 14-25 mm). The TL was significantly longer in males than in females. The diameter of the TL was thinnest at the centre (mean 2.0 mm, range 1-5 mm). The thicker ligaments were significantly larger in diameter. The alar ligament (AL) was dissected and examined in all cadavers. The direction of the AL ran postero-laterally. This ligament was divided into five types according to the fiber orientation. Type 1 was separated type in its origin at the dens. Type 2 was partially connected type. Type 3 was totally connected with a covered dens tip. Type 4 was totally connected but did not cover the dens tip. Type 5 was a combined type of Type 3 covering Type 1. The fiber direction of the AL was divided into three types; caudocranial type, horizontal type, and craniocaudal type. The AADL was examined in 24 specimens (60%). This ligament existed bilaterally in 18 specimens (45%) and hemilaterally in 6 (15%). The right side only was examined in 2 specimens (5%) and the left side only in 4 specimens (10%). In 6 specimens, the orientations of this ligament was identified and the shape was found to be thin. From these results, it was considered that not only TL, but also the AL and AADLs played an important role in stabilizing the atlanto-axial complex.
{"title":"[Anatomical study of the ligaments in the occipito-atlantoaxial complex].","authors":"K Okazaki","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>To investigate the role of the ligamentous complex in the stability of the atlanto-axial joint, the macroscopic anatomy of the occipito-atlanto-axial complex was studied in 44 cadavers involving the cruciate ligament of atlas, alar ligament, and the anterior atlanto-axial ligament (AADL). The transverse ligament (TL) had two layers, one was membranous tissue and the other was ligamentous. The mean length of the TL was 19.7 mm (range 14-25 mm). The TL was significantly longer in males than in females. The diameter of the TL was thinnest at the centre (mean 2.0 mm, range 1-5 mm). The thicker ligaments were significantly larger in diameter. The alar ligament (AL) was dissected and examined in all cadavers. The direction of the AL ran postero-laterally. This ligament was divided into five types according to the fiber orientation. Type 1 was separated type in its origin at the dens. Type 2 was partially connected type. Type 3 was totally connected with a covered dens tip. Type 4 was totally connected but did not cover the dens tip. Type 5 was a combined type of Type 3 covering Type 1. The fiber direction of the AL was divided into three types; caudocranial type, horizontal type, and craniocaudal type. The AADL was examined in 24 specimens (60%). This ligament existed bilaterally in 18 specimens (45%) and hemilaterally in 6 (15%). The right side only was examined in 2 specimens (5%) and the left side only in 4 specimens (10%). In 6 specimens, the orientations of this ligament was identified and the shape was found to be thin. From these results, it was considered that not only TL, but also the AL and AADLs played an important role in stabilizing the atlanto-axial complex.</p>","PeriodicalId":19640,"journal":{"name":"Nihon Seikeigeka Gakkai zasshi","volume":"69 12","pages":"1259-67"},"PeriodicalIF":0.0,"publicationDate":"1995-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19567069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A Sudo, T Hineno, G Okada, Y Kasai, Y Ogihara, Y Ishigami
An epidemiological investigation of osteoporosis was carried out in a community in which fishing is the primary industry, and correlations were investigated between the bone mass and various risk factors for osteoporosis and biochemical findings. In 852, who could be examined directly, of the 3541 males and females aged 40 years or above living in Nansei Town, Watarai District, Mie Prefecture, the age, sex, height, body weight, years after menopause, married or unmarried, area of residence, daily activity, and intakes of milk, fish, and alcohol were studied by direct oral inquiry, and the serum calcium, inorganic phosphorus, alkaline phosphatase, and total protein were measured. The subjects were divided into a decreased bone mass group who showed grade I or more advanced loss in bone mass and a normal bone mass group who showed no or only slight loss in bone mass on the basis of microdensitometry (MD). Eighty-two subjects (9.6%) were classified as the decreased bone mass group. Items that showed a close correlation with sigma GS/D, which is an index of bone density, were age, years after menopause, serum alkaline phosphatase level, height, and body weight in females, age and serum alkaline phosphatase level in males. In the decreased bone mass group, 79 of the 82 subjects were females. Significant differences were observed between the decreased bone mass group and the normal bone mass group in age, years after menopause, serum alkaline phosphatase level, height, and body weight. From these results, a high age, being a female, low height, and a low body weight were found to be factors correlated with osteoporosis. Also, the bone mass was correlated with the serum alkaline phosphatase level and years after menopause.
{"title":"[Epidemiological study of osteoporosis].","authors":"A Sudo, T Hineno, G Okada, Y Kasai, Y Ogihara, Y Ishigami","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>An epidemiological investigation of osteoporosis was carried out in a community in which fishing is the primary industry, and correlations were investigated between the bone mass and various risk factors for osteoporosis and biochemical findings. In 852, who could be examined directly, of the 3541 males and females aged 40 years or above living in Nansei Town, Watarai District, Mie Prefecture, the age, sex, height, body weight, years after menopause, married or unmarried, area of residence, daily activity, and intakes of milk, fish, and alcohol were studied by direct oral inquiry, and the serum calcium, inorganic phosphorus, alkaline phosphatase, and total protein were measured. The subjects were divided into a decreased bone mass group who showed grade I or more advanced loss in bone mass and a normal bone mass group who showed no or only slight loss in bone mass on the basis of microdensitometry (MD). Eighty-two subjects (9.6%) were classified as the decreased bone mass group. Items that showed a close correlation with sigma GS/D, which is an index of bone density, were age, years after menopause, serum alkaline phosphatase level, height, and body weight in females, age and serum alkaline phosphatase level in males. In the decreased bone mass group, 79 of the 82 subjects were females. Significant differences were observed between the decreased bone mass group and the normal bone mass group in age, years after menopause, serum alkaline phosphatase level, height, and body weight. From these results, a high age, being a female, low height, and a low body weight were found to be factors correlated with osteoporosis. Also, the bone mass was correlated with the serum alkaline phosphatase level and years after menopause.</p>","PeriodicalId":19640,"journal":{"name":"Nihon Seikeigeka Gakkai zasshi","volume":"69 12","pages":"1217-25"},"PeriodicalIF":0.0,"publicationDate":"1995-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19566894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The efficacy of motor evoked potentials (MEPs) induced by magnetic brain stimulation was investigated experimentally for assessing acute spinal cord injury. Twenty-five rabbits were employed for the acute spinal cord injury model. Following laminectomy under intravenous and intraperitoneal anesthesia, the spinal cord at the level of the fifth lumbar vertebra wsa injured by Allen's weight drop method. MEPs from the tibialis anterior muscle (M-MEP) were recorded using bipolar electrodes: prior to the injury; immediately after the injury; at 30 min, 1 hour, 3 hours, and at 5 hours after the injury. MEPs from the spinal cord (S-MEP) were recorded proximal to and distal from the injury site using epidural tube electrodes. Subjects were divided into two groups; complete and incomplete paralysis, according to the degree of motor dysfunction at 1 week after the injury. All the 13 subjects with incomplete paralysis had shown immediately after the trauma a prolongation in the M-MEP latency, with a polyphasic wave form seen in 5 of them. In 3 cases, the amplitude of the M-MEPs was decreased without any change in wave form. In others, there was some variation in the change of wave form, but there was no relationship found between the change of wave form and the degree of motor dysfunction in this group. Histopathologically, infiltration of the inflammatory cells and diffuse hemorrhaging were seen in the gray matter of the injured spinal cord in the incomplete paralysis group. In 7 of the 10 cases with complete paralysis, the M-MEP disappeared within 3 hours. Histopathologically, large areas of the nerve cells disappeared from the gray matter in this group. The S-MEP disappeared immediately after trauma in the group with complete paralysis as well as in those with incomplete paralysis. This study indicated that MEPs taken immediately after a trauma may predict the severity of a spinal cord injury and were useful for evaluating the prognosis of motor function during the acute phase of a spinal cord injury.
{"title":"[MEPs by transcranical magnetic stimulation in experimental acute spinal cord injury].","authors":"H Kawakita, O Kameyama, R Ogawa, A Tsubura","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The efficacy of motor evoked potentials (MEPs) induced by magnetic brain stimulation was investigated experimentally for assessing acute spinal cord injury. Twenty-five rabbits were employed for the acute spinal cord injury model. Following laminectomy under intravenous and intraperitoneal anesthesia, the spinal cord at the level of the fifth lumbar vertebra wsa injured by Allen's weight drop method. MEPs from the tibialis anterior muscle (M-MEP) were recorded using bipolar electrodes: prior to the injury; immediately after the injury; at 30 min, 1 hour, 3 hours, and at 5 hours after the injury. MEPs from the spinal cord (S-MEP) were recorded proximal to and distal from the injury site using epidural tube electrodes. Subjects were divided into two groups; complete and incomplete paralysis, according to the degree of motor dysfunction at 1 week after the injury. All the 13 subjects with incomplete paralysis had shown immediately after the trauma a prolongation in the M-MEP latency, with a polyphasic wave form seen in 5 of them. In 3 cases, the amplitude of the M-MEPs was decreased without any change in wave form. In others, there was some variation in the change of wave form, but there was no relationship found between the change of wave form and the degree of motor dysfunction in this group. Histopathologically, infiltration of the inflammatory cells and diffuse hemorrhaging were seen in the gray matter of the injured spinal cord in the incomplete paralysis group. In 7 of the 10 cases with complete paralysis, the M-MEP disappeared within 3 hours. Histopathologically, large areas of the nerve cells disappeared from the gray matter in this group. The S-MEP disappeared immediately after trauma in the group with complete paralysis as well as in those with incomplete paralysis. This study indicated that MEPs taken immediately after a trauma may predict the severity of a spinal cord injury and were useful for evaluating the prognosis of motor function during the acute phase of a spinal cord injury.</p>","PeriodicalId":19640,"journal":{"name":"Nihon Seikeigeka Gakkai zasshi","volume":"69 12","pages":"1268-77"},"PeriodicalIF":0.0,"publicationDate":"1995-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19566988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The results of 79 triple osteotomies (modified Tönnis method) for advanced coxarthrosis in 76 patients, performed between 1986 and 1991 in our clinic, were evaluated. The operation was performed for 72 females and 4 males, with a mean age of 45.6 years, ranging from 20 to 59 years. The mean follow-up period was 4 years and 2 months, ranging from 1.6 to 9 years. The operative technique used was a modified Tönnis method originally described by Tönnis in 1981. Using a dorsal approach, the ischium is first osteotomized and then turning the patient to the supine position, the osteotomies of the pubis and ilium are performed through an anterior approach. The osteotomized acetabulum is rotated antero-laterally as much as possible to cover the femoral head sufficiently and is fixed with 4 or 5 Steinmann pins. For the clinical evaluation, we used the Japanese Orthopaedic Association Hip Score. The average score improved from 68 points preoperatively to 90 points postoperatively. The roentogenological evaluation confirmed the following results; excellent in 36 hips (46%) with good joint space and good joint congruity, fair in 35 hips (44%) with good joint space and fair joint congruity, and poor in 8 hips (10%) with narrowed joint space. The average CE angle at follow-up was 40.3 degrees in 36 hips with excellent result, 33.8 degrees in 35 hips with fair, and 32.4 degrees in 8 hips with poor (p < 0.01). Good remodelings are obtained, if the CE angle becomes more than 40 degrees postoperatively in acetabular rotational osteotomy for advanced coxarthrosis.
{"title":"[Triple osteotomy (modified Tönnis method) for advanced coxarthrosis].","authors":"T Ohmura, Y Ohneda, S Tamai","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The results of 79 triple osteotomies (modified Tönnis method) for advanced coxarthrosis in 76 patients, performed between 1986 and 1991 in our clinic, were evaluated. The operation was performed for 72 females and 4 males, with a mean age of 45.6 years, ranging from 20 to 59 years. The mean follow-up period was 4 years and 2 months, ranging from 1.6 to 9 years. The operative technique used was a modified Tönnis method originally described by Tönnis in 1981. Using a dorsal approach, the ischium is first osteotomized and then turning the patient to the supine position, the osteotomies of the pubis and ilium are performed through an anterior approach. The osteotomized acetabulum is rotated antero-laterally as much as possible to cover the femoral head sufficiently and is fixed with 4 or 5 Steinmann pins. For the clinical evaluation, we used the Japanese Orthopaedic Association Hip Score. The average score improved from 68 points preoperatively to 90 points postoperatively. The roentogenological evaluation confirmed the following results; excellent in 36 hips (46%) with good joint space and good joint congruity, fair in 35 hips (44%) with good joint space and fair joint congruity, and poor in 8 hips (10%) with narrowed joint space. The average CE angle at follow-up was 40.3 degrees in 36 hips with excellent result, 33.8 degrees in 35 hips with fair, and 32.4 degrees in 8 hips with poor (p < 0.01). Good remodelings are obtained, if the CE angle becomes more than 40 degrees postoperatively in acetabular rotational osteotomy for advanced coxarthrosis.</p>","PeriodicalId":19640,"journal":{"name":"Nihon Seikeigeka Gakkai zasshi","volume":"69 12","pages":"1226-36"},"PeriodicalIF":0.0,"publicationDate":"1995-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19567063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We have retrospectively determined the preoperative risk factors in cervical radiculopathy after laminoplasty for cervical myelopathy using preoperative neuroradiographical findings and electrophysiological studies. Of the 67 patients who underwent laminoplasty, 10 patients (14.9%) postoperatively showed cervical radioculopathy. The preoperative radiographical findings had included cervical lordosis, intraspinal cord centering, and anterior protrusion of the apex of the superior articular process. Needle electromyography, somatosensory evoked potentials (SEPs), sensory nerve action potentials (SNAP) were preoperatively examined in 42 cases. There was no relationship between the postoperative radiculopathy and the preoperative radiographical findings. Six (100%) of 6 cases preoperatively diagnosed as C5 radiculopathy (postganglionic type) with Erb-P 14 interpeak latency of dermatomal SEPs and SNAP, developed postoperative C5 radiculopathy. One (25%) of 4 cases preoperatively diagnosed as C6 radiculopathy developed postoperative C6 radiculopathy. No case preoperatively diagnosed as C7 or C8 radiculopathy developed postoperative radiculopathy. This study suggested that an important risk factor for postoperative radiculopathy was subclinical C5 radiculopathy (postganglionic type) that could be preoperatively evaluated using electrophysiological studies.
{"title":"[Clinical study of cervical radiculopathy after laminoplasty for cervical myelopathy].","authors":"K Sasai, T Saito, S Akagi, H Watanabe","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>We have retrospectively determined the preoperative risk factors in cervical radiculopathy after laminoplasty for cervical myelopathy using preoperative neuroradiographical findings and electrophysiological studies. Of the 67 patients who underwent laminoplasty, 10 patients (14.9%) postoperatively showed cervical radioculopathy. The preoperative radiographical findings had included cervical lordosis, intraspinal cord centering, and anterior protrusion of the apex of the superior articular process. Needle electromyography, somatosensory evoked potentials (SEPs), sensory nerve action potentials (SNAP) were preoperatively examined in 42 cases. There was no relationship between the postoperative radiculopathy and the preoperative radiographical findings. Six (100%) of 6 cases preoperatively diagnosed as C5 radiculopathy (postganglionic type) with Erb-P 14 interpeak latency of dermatomal SEPs and SNAP, developed postoperative C5 radiculopathy. One (25%) of 4 cases preoperatively diagnosed as C6 radiculopathy developed postoperative C6 radiculopathy. No case preoperatively diagnosed as C7 or C8 radiculopathy developed postoperative radiculopathy. This study suggested that an important risk factor for postoperative radiculopathy was subclinical C5 radiculopathy (postganglionic type) that could be preoperatively evaluated using electrophysiological studies.</p>","PeriodicalId":19640,"journal":{"name":"Nihon Seikeigeka Gakkai zasshi","volume":"69 12","pages":"1237-47"},"PeriodicalIF":0.0,"publicationDate":"1995-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19567065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}