Details of a Researcher - Matsumoto, Morio

Papers - Matsumoto, Morio

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腰椎変性側弯症に対するinstrumentation surgery（広範囲固定例）の中・長期成績（5年以上）

Toyama Yoshiaki, Matsumoto Morio, Maruiwa Hirofumi, Nakamura Masaya, Nishizawa Takashi, Chiba Kazuhiro

臨床整形外科 37 ( 4 ) 467-473 2002.04

Research paper (scientific journal), Joint Work

Extraforaminal entrapment of the fifth lumbar spinal nerve by osteophytes of the lumbosacral spine

Matsumoto Morio, Chiba Kazuhiro, Nojiri Kenya, Ishikawa Masayuki, Toyama Yoshiaki, Nishikawa Yuji

Spine 27 ( 6 ) 2002.03

ISSN 1528-1159

<p>STUDY DESIGN: An anatomic study of the associations between the fifth lumbar spinal nerve (L5 spinal nerve) and a lumbosacral tunnel, consisting of the fifth lumbar vertebral body (L5 vertebral body), the lumbosacral ligament, and sacral ala, and clinical case reports of four patients with lumbar radiculopathy secondary to entrapment of the L5 spinal nerve in the lumbosacral tunnel. OBJECTIVES: To delineate the anatomic, clinical, and radiologic features and surgical outcome of patients with entrapment of the L5 spinal nerve in the lumbosacral tunnel. SUMMARY OF BACKGROUND DATA: Although several cadaveric studies on a lumbosacral tunnel as a possible cause of L5 radiculopathy have been reported, few studies had focused on osteophytes of the L5-S1 vertebral bodies as the major component of this compressive lesion, and clinical reports on patients with this disease have been rare. METHODS: Lumbosacral spines from 29 geriatric cadavers were examined with special attention to the associations between osteophytes of the L5-S1 vertebral bodies and the L5 spinal nerve. Four patients with a diagnosis of the entrapment of the L5 spinal nerve by osteophytes at the lumbosacral tunnel were treated surgically, and their clinical manifestations and surgical results were reviewed retrospectively. RESULTS: The anatomic study demonstrated osteophytes of the L5-S1 vertebral bodies in seven of the 29 cadavers. Entrapment of the L5 spinal nerve in the lumbosacral tunnel was observed in six of the seven cadavers with L5-S1 osteophytes but in only one of the 22 cadavers without such osteophytes (P < 0.05, chi2 test). All four patients had neurologic deficits in the L5 nerve root distribution. MRI and myelography showed no abnormal findings in the spinal canal, but CAT scans demonstrated prominent osteophytes on the lateral margins of L5-S1 vertebral bodies in all four. Selective L5 nerve block completely relieved all patients of pain but only temporarily. Three patients were treated via a posterior approach by resecting the sacral ala along the L5 spinal nerve, and the other patient was treated by laparoscopic anterior resection of the osteophytes. Pain relief was obtained in the four patients immediately after surgery, but one patient experienced recurrence of pain 1 year after the first surgery and was successfully treated by additional posterior decompression and fusion. CONCLUSIONS: Extraforaminal entrapment of L5 spinal nerve in the lumbosacral tunnel can cause L5 radiculopathy, and osteophytes of L5-S1 vertebral bodies are a major cause of the entrapment.</p>

L5-S1椎体骨棘による第5腰神経障害―解剖学的および臨床的検討―

Matsumoto Morio，Nojiri Kenya，Ishikawa Masayuki，Nishizawa Takashi，Nakamura Masaya，Maruiwa Hirofumi，Chiba Kazuhiro，Toyama Yoshiaki，Ichihara Mahito，Nishikawa Yuuji

臨床整形外科 37 ( 3 ) 257-267 2002.03

Research paper (scientific journal), Joint Work

健常人の頸椎alignmentに関するX線学的検討―上位頸椎と下位頸椎alignmentとの関係

Nojiri Kenya, Matsumoto Morio, Chibakazuhiro, Maruiwa Hirofumi, Fujimura Yoshikazu, Toyama Yoshiaki

東日本臨床整形学会誌 14 ( 1 ) 73-76 2002.03

Research paper (scientific journal), Joint Work

健常人頚椎alignmentに関するX線学的検討―上位頚椎と下位頚椎alignmentとの関係―

Nojiri Kenya，Matsumoto Morio，Chiba Kazuhiro，Maruiwa Hirofumi，Fujimura Yoshikazu，Toyama Yoshiaki

東日本整形災害外科学会雑誌 14 ( 1 ) 73-76 2002.03

Research paper (scientific journal), Joint Work

男女間における腰椎変性すべり症の臨床像の違いについて―後方除圧術の分析

Nishizawa Takashi, Chiba Kazuhiro, Nakamura Masaya, Matsumoto Morio, Maruiwa Hirofumi, Fujimura Yoshikazu, Toyama Yoshiaki

臨床整形外科 37 ( 3 ) 257-262 2002.03

Research paper (scientific journal), Joint Work

男女間における腰椎変性すべり症の臨床像の違いについて―後方除圧術例の分析―

Nishizawa Takashi，Chiba Kazuhiro，Nakamura Masaya，Matsumoto Morio，Maruiwa Hirofumi，Fujimura Yoshikazu，Toyama Yoshiaki

臨床整形外科 37 ( 3 ) 249-255 2002.03

Research paper (scientific journal), Joint Work

L5 - S1椎体骨棘による第5腰神経障害―解剖学的および臨床的検討

Matsumoto Morio, Nojiri Kenya, Ishikawa Masayuki, Nishizawa Takashi, Nakamura Masaya, Maruiwa Hirofumi, Chiba Kazuhiro, Toyama Yoshiaki, Ichihara Masato, Nishikawa Yuuji

臨床整形外科 37 ( 3 ) 257-262 2002.03

Research paper (scientific journal), Joint Work

Extraforaminal entrapment of the fifth study and a report of four cases [Case reports]

Matsumoto Morio, Chiba Kazuhiro, Nojiri Kenya, Ishikawa Masayuki, Toyama Yoshiaki, Nishikawa Yuji

Spine 27 ( 6 ) E169-E173 2002.03

Research paper (scientific journal), Joint Work

Extraforaminal entrapment of the fifth lumbar spinal nerve by osteophytes of the lumbosacral spine-Anatomical study and a report of four cases-

Matsumoto Morio, Chiba Kazuhiro, Nojiri Kenya, Ishikawa Masayuki, Toyama Yoshiaki, Nishikawa Yuji

Spine 27 ( 6 ) E169-E173 2002.03

Research paper (scientific journal), Joint Work

外科的治療-脊椎の手術

Matsumoto Morio，Toyama Yoshiaki

リウマチ科 27 530-538 2002.02

Research paper (scientific journal), Joint Work

経静脈的patient controlled analgesiaによる脊椎術後疼痛管理

Matsumoto Morio, Chiba Kazuhiro, Nishizawa Takashi, Nakamura Masaya, Toyama Yoshihiro, Hashiguchi Saori

臨床整形外科 37 ( 2 ) 159-162 2002.02

Research paper (scientific journal), Joint Work

総論（治療法の選択と使い方）―外科的療法；脊椎の手術

Matsumoto Morio, Toyama Yoshiaki

リウマチ科 27 ( Suppl1 ) 530-538 2002.02

Research paper (scientific journal), Joint Work

頸椎椎間板ヘルニアによる頸髄症に対する保存療法の有用性と限界―手術例との比較検討

Matsumoto Morio, Chiba Kazuhiro, Nishizawa Takashi, Nakamura Masaya, Maruiwa Hirofumi, Fujimura Yoshikazu, Toyama Yoshiaki

臨床整形外科 37 ( 2 ) 129-133 2002.02

Research paper (scientific journal), Joint Work

球麻痺により発症した上位頸椎奇形の1治験例

Iwanami Akio, Maruiwa Hirofumi, Nishizawa Takashi, Matsumoto Morio, Chiba Kazuhiro, Fujimura Yoshikazu, Toyama Yoshiaki

臨床整形外科 37 ( 2 ) 169-173 2002.02

Research paper (scientific journal), Joint Work

特集―腰痛症発生メカニズムと診断，治療；腰痛症に対する各種画像検査法とその意義

Matsumoto Morio, Chiba Kazuhiro, Toyama Yoshiaki

現代医療 34 ( 増刊 ) 562-565 2002.02

Research paper (scientific journal), Joint Work

球麻痺により発症した上位頸椎奇形の1治験例

Iwanami Akio，Maruiwa Hirofumi，Nishizawa Takashi，Matsumoto Morio，Chiba Kazuhiro，Fujimura Yoshikazu，Toyama Yoshiaki

臨床整形外科 37 ( 2 ) 169-173 2002.02

Research paper (scientific journal), Joint Work

経静脈的patient controlled analgesiaによる脊椎術後疼痛管理

Matsumoto Morio，Chiba Kazuhiro，Nishizawa Takashi，Nakamura Masaya，Maruiwa Hirofumi，Fujimura Yoshikazu，Toyama Yoshiaki，Hashiguchi Saori

臨床整形外科 37 ( 2 ) 159-162 2002.02

Research paper (scientific journal), Joint Work

頚椎椎間板ヘルニアによる頚髄症に対する保存療法の有用性と限界―手術例との比較検討―

Matsumoto Morio，Chiba Kazuhiro，Nishizawa Takashi，Nakamura Masaya，Maruiwa Hirofumi，Fujimura Yoshikazu，Toyama Yoshiaki

臨床整形外科 37 ( 2 ) 129-133 2002.02

Research paper (scientific journal), Joint Work

腰痛症に対する各種画像検査法とその意義

Matsumoto Morio，Chiba Kazuhiro，Toyama Yoshiaki

現代医療 34 ( 増刊 ) 562-566 2002.02

Research paper (scientific journal), Joint Work

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