Details of a Researcher - Matsumoto, Morio

Papers - Matsumoto, Morio

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椎間板と交通する脊柱管内嚢腫(椎間板嚢腫) --発生機序の考察と新しい疾患名の提唱--

Toyama Yoshiaki, Kamata Michihiro, Matsumoto Morio, Nishizawa Takashi, Koyanagi Takahiro, Suzuki Nobumasa, Fujimura Yoshikazu

臨整外 32 ( 4 ) 393-400 1997.04

Research paper (scientific journal), Joint Work

頸椎部の放射線的解剖--椎骨，靱帯，椎間板を中心として--

Matsumoto Morio

脊椎脊髄ジャーナル 10 ( 4 ) 275-281 1997.04

Research paper (scientific journal), Single Work

MRI findings of acute whiplash injury and relationship to clinical symptoms

Fujimura Y., Matsumoto M.

International Medical Journal 4 ( 3 ) 223 - 226 1997

ISSN 1341-2051

This study was designed to evaluate the relationship between findings of disc degeneration on magnetic resonance imaging and clinical symptoms in 415 patients with acute whiplash injury. The images were examined for signs of disc degeneration and spinal cord compression. Loss of disc signal intensity occurred significantly more often in patients with shoulder stiffness and numbness in the upper extremities, while the frequency of posterior disc protrusion was significantly higher in patients with shoulder stiffness than in patients without these symptoms. There was no significant relationship between other MRI findings and the presence or absence of clinical symptoms. These findings suggest that disc degeneration has no pathogenic implications in many patients with acute whiplash injury.

脊髄砂時計形腫瘍の手術手技--脊柱再建ないし固定術の適応とその方法--

Toyama Yoshiaki, Matsumoto Morio, Kamata Michihiro

脊椎脊髄 10 ( 2 ) 125-133 1997

Research paper (scientific journal), Joint Work

健常者における頚椎弯曲と椎間板変性との関連について

Matsumoto Morio, Fujimura Yoshikazu, Suzuki Nobumasa, Ono Toshiaki, Ishikawa Masayuki, Yabe Yutaka

東日本整災会誌 9 ( 1 ) 1-4 1997

Research paper (scientific journal), Joint Work

Effect of alcohol on patients with diabetes, hypertension or cardiovascular disease

Matsumoto M., Kato S., Yokoyama H., Ishii H.

Nippon rinsho. Japanese journal of clinical medicine 55 Suppl 597 - 603 1997

ISSN 0047-1852

Myelopathy secondary to ossification of the posterior longitudinal ligament of the thoracic spine treated by anterior decompression and bony fusion

Fujimura Y., Nishi Y., Nakamura M., Watanabe M., Matsumoto M.

Spinal Cord 35 ( 11 ) 777 - 784 1997

ISSN 1362-4393

We examined the utility of anterior decompression and bony fusion via the extrapleural approach in the treatment of thoracic myelopathy secondary to ossification of the posterior longitudinal ligament (OPLL). Patient outcome and complications were analyzed in 48 patients treated with this procedure, with a follow-up of at least 2 years. The Japanese Orthopaedic Association score was used to evaluate the severity of the thoracic myelopathy, and the recovery rate was used to evaluate the surgical outcome. The outcome, postoperative complications, radiographic evaluations of bony union, and progression of OPLL within the area of anterior decompression were examined. The T3 vertebral body was the highest level to which anterior decompression was applied. The average follow-up period was 57 months with a recovery rate of 56.7% which stabilized 1 year after operation. However, the surgical outcome was less favorable in patients with long-standing myelopathy, extensive OPLL, or thoracic OPLL with coexisting intraspinal ligament ossification. Four patients experienced deterioration of their myelopathy, and seven patients had the postoperative complication of extraspinal leakage of cerebrospinal fluid. The myelopathy was transient in all but one patient. Radiographic studies showed that bony union was achieved and restenosis of the spinal canal due to progression of OPLL within the area of decompression did not occur. We conclude that anterior decompression and bony fusion using the extrapleural approach provides a good outcome and is useful in treating mid- and lower thoracic OPLL when performed carefully at an early stage of disease.

Diagnostic value of magnetic resonance imaging in whiplash injury

Fujimura Y., Matsumoto M.

International Medical Journal 4 ( 3 ) 177 - 180 1997

ISSN 1341-2051

This study was designed to investigate the diagnostic value of magnetic resonance imaging (MRI) of the cervical spine in acute whiplash injury. The subjects were 506 patients with acute whiplash injury, with 497 asymptomatic volunteers as a control group. No difference in the occurrence of signs of disc degeneration or cord compression were observed between the whiplash injury and control groups. The correlation between the appearance of these signs and the subject's age was, however, significant. In addition, ligament injuries were found in only 0.8% of the patients. We conclude that the diagnostic value of MRI in acute whiplash injury is limited.

外傷歴と退行変性--頚部椎間板ヘルニア--

Hirabayashi Kiyoshi, Matumoto Morio

日災医会誌 44 ( 4 ) 248-254 1996.04

Research paper (scientific journal), Joint Work

Usefulness and reliability of neurological signs for level diagnosis in cervical myelopathy caused by soft disc herniation

Matsumoto Morio, Fujimura Yoshikazu, Toyama Yoshiaki

Journal of Spinal Disorders 9 ( 4 ) 317 - 321 1996

ISSN 0895-0385

We retrospectively analyzed neurological signs of 106 patients with cervical myelopathy caused by single-level soft disc herniation. Neurological signs that were intensively analyzed were deep tendon reflexes, the uppermost level of impaired pinprick sensation, the uppermost weak muscle, and region of numbness in the bands. Characteristic signs for each intervertebral level were deduced, and sensitivity, specificity, and accuracy of these signs were calculated. Deep tendon reflexes were specific signs for each intervertebral level, although not as sensitive as the neurological signs. Muscle weakness and pinprick sensation were neither sensitive nor specific. Hand numbness was moderately sensitive and specific. On the whole, there was no neurological sign that was both highly sensitive and specific for an intervertebral level, and therefore, neurological level diagnosis in cervical myelopathy should be performed comprehensively according to more specific signs, i.e., deep tendon reflexes and hand numbness.

頚椎後縦靭帯骨化症の手術治療成績と外傷の関連について

Nakamura Masaya, Fujimura Yoshikazu, Matsumoto Morio, Kamata Michihiro, Toyama Yoshiaki, Suzuki Nobumasa

臨整外 31 ( 12 ) 1339-1342 1996

Research paper (scientific journal), Joint Work

AW－GC椎弓スペーサーを用いた環軸椎後方固定術(Brooks法)の試み

Ogawa Jun, Toyama Yoshiaki, Matsumoto Morio, Tanaka Mamoru

整形外科 47 ( 10 ) 1373-1375 1996

Research paper (scientific journal), Joint Work

Usefulness and reliability of neurological signs for level diagnosis in cervical myelopathy caused by soft disc herniation

Matsumoto Morio, Fujimura Yoshikazu, Toyama Yoshiaki

J Spinal Disord 9 ( 4 ) 317-321 1996

Research paper (scientific journal), Joint Work

外傷歴と退行変性--頸部椎間板ヘルニア--

Hirabayashi Kiyoshi, Matsumoto Morio

日災医会誌 44 ( 4 ) 248-254 1996

Research paper (scientific journal), Joint Work

MRIにおける健常者頚椎椎間板の加齢変化

Matsumoto Morio, Fujimura Yoshikazu, Suzuki Nobumasa, Toyama Yoshiaki, Ono Toshiaki, Nishi Yukimi, Yabe Yutaka

臨整外 31 ( 4 ) 391-396 1996

Research paper (scientific journal), Joint Work

リウマチ性頚椎病変手術例の予後

Toyama Yoshiaki, Matsumoto Morio, Fujimura Yoshikazu, Hirabayashi Kiyoshi, Satomi Kazuhiko

整形外科 46 ( 12 ) 1585-1591 1995.12

Research paper (scientific journal), Joint Work

成人発症Still病に合併した環軸関節亜脱臼の1例

Kenmochi Taro, Ichimura Shoichi, Toyama Yoshiaki, Matsumoto Morio, Fujimura Yoshikazu

関東整災誌 26 ( 6 ) 543-547 1995.12

Research paper (scientific journal), Joint Work

リウマチ性頚椎病変手術例の予後

Toyama Yoshiaki, Matsumoto Morio, Fujimura Yoshikazu, Hirabayashi Kiyoshi, Satomi Kazuhiko

整形外科 46 ( 12 ) 1581-1591 1995.12

Research paper (scientific journal), Joint Work

特集　上位頸椎疾患・・その病体と治療小児の環軸椎後方固定術が頸椎の成長に及ぼす影響について

Matsumoto Morio, Toyama Yoshiaki, Suzuki Nobumasa, Fujimura Yoshikazu, Hirabayashi Kiyoshi, Kobayashi Keiji, Ichihara Mahito

臨床整形外科 30 ( 4 ) 345-353 1995.04

Research paper (scientific journal), Joint Work

Tension characteristics of the ilio-tibial tract and role of its superficial layer

Matsumoto H, Seedhom BB

Clin Orthop 313 ( 4 ) 253-255 1995.04

Research paper (scientific journal), Joint Work

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