Papers - Matsumoto, Morio

Use of a titanium mesh cage for posterior atlantoaxial arthrodesis

Matsumoto Morio, Chiba Kazuhiro, Tsuji Takashi, Maruiwa Hirofumi, Toyama Yoshiaki, Ogawa Jun

Journal of Neurosurgery 96 ( 1 ) 127-130 2002.01

Research paper (scientific journal), Joint Work

Use of a titanium mesh cage for posterior atlantoaxial arthrodesis

Matsumoto Morio, Chiba Kazuhiro, Tsuji Takashi, Maruiwa Hirofumi, Toyama Yoshiaki, Ogawa Jun

Journal of neurosurgery 96 ( 1Suppl ) 127-130 2002.01

Research paper (scientific journal), Joint Work

Use of a titanium mesh cage for posterior atlantoaxial arthrodesis. Technical note

Matsumoto Morio, Chiba Kazuhiro, Tsuji Takashi, Maruiwa Hirofumi, Toyama Yoshiaki, Ogawa Jun

Journal of Neurosurgery 96 ( 1 SUPPL. ) 127 - 130 2002

ISSN  0022-3085

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<p>The authors placed titanium mesh cages to achieve posterior atlantoaxial fixation in five patients with atlantoaxial instability caused by rheumatoid arthritis or os odontoideum. A mesh cage packed with autologous cancellous bone was placed between the C-1 posterior arch and the C-2 lamina and was tightly connected with titanium wires. Combined with the use of transarticular screws, this procedure provided very rigid fixation. Solid fusion was achieved in all patients without major complications. The advantages of this method include more stable fixation, better control of the atlantoaxial fixation angle, and reduced donor-site morbidity compared with a conventional atlantoaxial arthrodesis in which an autologous iliac crest graft is used.</p>

仙骨全摘後2期的再建を行った脊索腫の2例

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

脊椎・脊髄神経手術手技 4 ( 1 ) 104-106 2002

Research paper (scientific journal), Joint Work

In vivo and in vitro evaluation of the biocompatiblitiy of the hydroxyapatite-PMMA hybrid materials having mechanical property similar to that of cortical bone

Aizawa Mamoru, Ito Masato, Itatani Kiyoshi, Suemasu Hiroshi, Nozue Akira, Okada Isao, Matsumoto Morio, Ishikawa Masayuki, Matsumoto Hideo, Toyama Yoshiaki

Key engineering materials 218   465-468 2002

Research paper (scientific journal), Joint Work

In vivo and in vitro evaluation of the biocompatibility of the hydroxyapatite-PMMA hybrid materials having mechanical property similar to that of cortical bone

Aizawa M, Ito M, Itatani K, Suemasu H, Nozue A, Okada I, Matsumoto Morio, Ishikawa Masayuki, Matsumoto Hideo, Toyama Yoshiaki

Key Engineering Materials    189-210 2002

Research paper (scientific journal), Joint Work

In vivo and in vitro evaluation of the biocompatibility of the hydroxyapatite-PMMA materials having mechanical property similar to that of cortical bone

Aizawa Mamoru, Ito Msako, Itatani H, Suemasu H, Nozue Akira, Okada Isao, Matsumoto Morio, Ishikawa Masayuki, Matsumoto Hideo, Toyama Yoshiaki

Bioceramics 14   465-468 2002

Research paper (scientific journal), Joint Work

In vivo and in vitro evaluation of the biocompatibility of the hydroxyapatite-PMMA hybrid materials having mechanical property similar to that of cortical bone

Aizawa M., Ito M., Itatani K., Suemasu H., Nozue A., Okada I., Matsumoto M., Ishikawa M., Matsumoto H., Toyama Y.

Key Engineering Materials 218-220   465 - 468 2002

ISSN  1013-9826

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<p>We fabricated the Hydroxyapatite(HAp)-PMMA hybrid material having mechanical properties similar to those of the cortical bone, using porous HAp ceramics with well-controlled pore sizes and bulk polymerization of MMA monomer without solvents. The histological results showed that the present hybrid material bonded directly to bone without intervening fibrous tissue between hybrid material and newly formed bone, and that a large amount of new bone was formed around the hybrid material. In addition, the results of in vitro evaluation also showed that the hybrid material in the present investigation has good biocompatibility.</p>

自然縮小を認めた脊柱管内嚢腫の3例

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

日本パラプレジア医学会誌 15 ( 1 ) 84-85 2002

Research paper (scientific journal), Joint Work

環軸関節固定術におけるTitanium Mesh Cageの使用経験

Tsuji Takashi, Matsumoto Morio, Maruiwa Hirofumi, Chiba Kazuhiro, Toyama Yoshiaki

脊椎・脊髄神経手術手技 4 ( 1 ) 36-38 2002

Research paper (scientific journal), Joint Work

間欠跛行の改善が得られた変性すべり症による腰部脊柱管狭窄症の1例

Matsumoto Morio

Progress in Medicine 21 ( 12 ) 133-134 2001.12

Research paper (scientific journal), Single Work

むち打ち損傷における診断―治療上の問題点と今後の課題―

Matsumoto Morio，Chiba Kazuhiro，Toyama Yoshiaki

脊椎脊髄ジャーナル 14 ( 11 ) 975-979 2001.11

Research paper (scientific journal), Joint Work

高齢者に見られる腰椎変性側弯―病態と治療―

Chiba Kazuhiro，Matsumoto Morio，Toyama Yoshiaki

Monthly Book Orthopaedics 14 ( 12 ) 96-101 2001.11

Research paper (scientific journal), Joint Work

Intraspinal cyst communicating with the intervertebral disc in the lumbar spine

Chiba Kazuhiro, Toyama Yoshiaki, Matsumoto Morio, Maruiwa Hirofumi, Watanabe Masahiko, Nishizawa Takashi

Spine 26 ( 19 ) 2112 - 2118 2001.10

ISSN  0362-2436

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<p>Study Design. A retrospective case study of patients with intraspinal cyst having a distinct connection with the corresponding intervertebral disc. Objectives. To propose a new clinical entity, "discal cyst," by clarifying the clinical, radiographic, and histologic aspects of the disease. Summary of Background Data. Several types of intraspinal cysts with different pathogenesis, causing symptoms indistinguishable from those of lumbar disc herniation, have been reported, such as perineural cysts, synovial cysts, and ganglion cysts. However, to the authors' knowledge, no detailed analysis has been made of cysts that have a distinct connection with the corresponding intervertebral disc. Methods. Clinical pictures, radiographic findings, and surgical and histologic findings in eight surgically treated patients with intraspinal cyst having a distinct connection with the intervertebral disc were reviewed. Possible pathogenesis and a proposal for nomenclature were also discussed. Results. This disease can be characterized by (1) clinical symptoms indistinguishable from those of typical disc herniation, manifesting as a unilateral single nerve root lesion; (2) incidence at slightly younger age and at upper intervertebral levels than with typical disc herniation; (3) T1 low signal and T2 high signal intensity, round to oval mass lesion on magnetic resonance imaging, compatible with a liquid-containing cyst; (4) minimal degeneration of the involved disc, either on discography/computed tomographic discography or magnetic resonance imaging; (5) a connection between the cyst and the corresponding intervertebral discs on discograms with severe radiating pain in the affected leg at the time of injection; (6) immediate relief of symptoms after simple removal of the cyst; (7) cyst wall consisting of dense fibrous connective tissue containing bloody to clear serous discharge; and (8) absence of disc materials and a specific lining cell layer on histologic examination, Although the exact cause is unknown, underlying minor disc injury may serve as a basis for cyst formation. Conclusion. Eight cases of intraspinal cysts communicating with the intervertebral disc presenting symptoms identical to those of disc herniation are presented. Because all cysts were connected to the corresponding disc and the development of the cyst was assumed to be related to underlying disc injury, it is proposed to name-this clinical entity discal cyst.</p>

• Access to Document (DOI)

上位頚椎損傷の治療

Matsumoto Morio，Toyama Yoshiaki

Monthly Book Orthopedics 14 ( 11 ) 15-21 2001.10

Research paper (scientific journal), Joint Work

Intraspinal cyst communication with the intervertebral space; Discal cyst

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

Spine 26 ( 19 ) 2112-2118 2001.10

Research paper (scientific journal), Joint Work

L5椎体下縁の骨棘により生じたfar-out syndromeの1例

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

関東整形災害外科学会雑誌 32 ( 5 ) 262-265 2001.10

Research paper (scientific journal), Joint Work

Surgical management of idiopathic spinal cord herniation-A review of 9 cases treated by the enlargement of the dural defect-

Watanabe Masahiko, Chiba Kazuhiro, Matsumoto, Maruiwa Hirofumi, Fujimura Yoshikazu, Toyama Yoshiaki

Journal of Neurosurgery 95 ( 2 Suppl ) 169-172 2001.10

Research paper (scientific journal), Joint Work

脊柱管狭窄を伴う頚椎椎間板ヘルニアの手術療法―前後合併手術と後方除圧術との比較―

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

脊椎脊髄ジャーナル 14 ( 9 ) 799-803 2001.09

Research paper (scientific journal), Joint Work

MRIによる遠位腰椎神経根の3次元表示

Matsumoto Morio，Souza S，Vosburgh K，Carl A，Toyama Yoshiaki

臨床整形外科 36 ( 8 ) 949-951 2001.08

Research paper (scientific journal), Joint Work