著者 Sakata, Kenichiro| Furumatsu, Takayuki| Miyazawa, Shinichi| Okada, Yukimasa| Fujii, Masataka| Ozaki, Toshifumi|
発行日 2013-01
出版物タイトル International Orthopaedics
37巻
1号
資料タイプ 学術雑誌論文
フルテキストURL fulltext.pdf
著者 Hiranaka, Takaaki| Furumatsu, Takayuki| Tanaka, Takaaki| Okazaki, Yuki| Kodama, Yuya| Kamatsuki, Yusuke| Masuda, Kenji| Seno, Noritaka| Ozaki, Toshifumi|
キーワード anterior cruciate ligament knee pullout suture screw fixation tibial eminence avulsion fracture
発行日 2020-06-03
出版物タイトル Journal of Orthopaedic Surgery
28巻
2号
出版者 SAGE Publications
開始ページ 2309499020918681
ISSN 2309-4990
NCID AA11004541
資料タイプ 学術雑誌論文
言語 English
OAI-PMH Set 岡山大学
著作権者 © The Author(s) 2020
論文のバージョン publisher
PubMed ID 32489139
DOI 10.1177/2309499020918681
Web of Science KeyUT 000539749100001
関連URL isVersionOf https://doi.org/10.1177/2309499020918681
著者 Saiga, Kenta| Furumatsu, Takayuki| Yoshida, Aki| Masuda, Shin| Takihira, Shota| Abe, Nobuhiro| Ozaki, Toshifumi|
発行日 2010-11-12
出版物タイトル Biochemical and Biophysical Research Communications
402巻
2号
資料タイプ 学術雑誌論文
JaLCDOI 10.18926/AMO/32621
フルテキストURL fulltext.pdf
著者 Ozaki, Toshifumi| Inoue, Hajime| Sugihara, Shinsuke|
抄録 <p>We evaluated the surgical problems encountered during treatment of 14 patients with malignant tumors originating in the pelvic region at our department. The tumor involved the iliac bone in 6 patients, the ischial bone in 2, the pubic bone in 2, and the gluteal region in 4. Invasion to the sacrum was observed in 7 patients. Twelve patients underwent surgical procedures consisting of intralesional resection in 6, marginal resection in 3, and wide margin resection in 3. Six of the 7 patients with sacral invasion developed local recurrence. Two patients with chondrosarcoma and one with parosteal osteosarcoma survived for 4 or more years, but the mean survival period in those with high grade malignant tumors was 11 months. These findings indicate the difficulties encountered in the treatment of malignant pelvic tumors.</p>
キーワード bone neoplasms soft tissue neoplasms malignant neoplasms pelvis surgical treatment
Amo Type Article
発行日 1992-08
出版物タイトル Acta Medica Okayama
46巻
4号
出版者 Okayama University Medical School
開始ページ 265
終了ページ 271
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 1442150
Web of Science KeyUT A1992JL44200006
フルテキストURL fulltext.pdf Suppl. Info.pdf Suppl. Tables.xlsx
著者 Morita, Takuya| Fujiwara, Tomohiro| Yoshida, Aki| Uotani, Koji| Kiyono, Masahiro| Yokoo, Suguru| Hasei, Joe| Kunisada, Toshiyuki| Ozaki, Toshifumi|
キーワード Sarcoma Translational research
発行日 2020-06-10
出版物タイトル Scientific Reports
10巻
1号
出版者 Nature
開始ページ 9414
ISSN 2045-2322
資料タイプ 学術雑誌論文
言語 English
OAI-PMH Set 岡山大学
著作権者 © The Author(s) 2020
論文のバージョン publisher
PubMed ID 32523124
DOI 10.1038/s41598-020-66120-8
Web of Science KeyUT 000560478900030
関連URL isVersionOf https://doi.org/10.1038/s41598-020-66120-8
JaLCDOI 10.18926/AMO/52012
フルテキストURL 67_6_385.pdf
著者 Tanaka, Masato| Arataki, Shinya| Sugimoto, Yoshihisa| Takigawa, Tomoyuki| Tetsunaga, Tomoko| Ozaki, Toshifumi|
抄録 Craniometaphyseal dysplasia is a rare genetic condition characterized by progressive thickening of bones in the skull and metaphyseal abnormalities in the long bones. This disorder often causes progressively symptomatic cranial nerve compression, but in rare cases foramen magnum stenosis may lead to quadriplegia. Chiari I malformation with craniometaphyseal dysplasia is extremely rare. The authors report on a 25-year-old woman with myelopathy due to Chiari I malformation along with craniometaphyseal dysplasia. There are only four previous case reports of this condition. The authors present here the fifth case report of this rare condition and summarize its characteristics.
キーワード craniometaphyseal dysplasia Chiari malformation cervicomedullary compression
Amo Type Case Report
発行日 2013-12
出版物タイトル Acta Medica Okayama
67巻
6号
出版者 Okayama University Medical School
開始ページ 385
終了ページ 389
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
著作権者 CopyrightⒸ 2013 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 24356723
Web of Science KeyUT 000328915700007
JaLCDOI 10.18926/AMO/55312
フルテキストURL 71_4_345.pdf
著者 Tanaka, Masato| Sugimoto, Yoshihisa| Takigawa, Tomoyuki| Kimata, Yoshihiro| Ozaki, Toshifumi|
抄録 Osteoradionecrosis (ORN), a well-known complication of radiotherapy in the mandibular bone, is very rare in the cervical spine. The authors report the result of a 3-year follow-up of a 63-year-old female patient with ORN of the cervical spine. The patient had a history of laryngeal carcinoma and was treated with chemotherapy and radiation therapy with a total of 120 Gy. Eight years later, she developed acute, severe neck pain due to cervical spine necrosis. The authors performed vascularized fibular bone graft and posterior pedicle screw fixation to reconstruct her cervical spine. The patient was successfully treated with surgery, and cervical alignment was preserved. She had neither neurological deficits nor severe neck pain at her final follow-up 3 years later. Delaying treatment of ORN may be life threatening, so the early diagnosis of this condition is important for patients who receive radiotherapy. Otolaryngologists and spine surgeons should understand this potential complication to speed diagnosis and treatment as early as possible.
キーワード osteoradionecrosis laryngeal carcinoma cervical spine radiotherapy
Amo Type Case Report
発行日 2017-08
出版物タイトル Acta Medica Okayama
71巻
4号
出版者 Okayama University Medical School
開始ページ 345
終了ページ 349
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
著作権者 CopyrightⒸ 2017 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 28824191
JaLCDOI 10.18926/AMO/32855
フルテキストURL fulltext.pdf
著者 Shimamura, Yasunori| Nishida, Keiichiro| Imatani, Junya| Noda, Tomoyuki| Hashizume, Hiroyuki| Ohtsuka, Aiji| Ozaki, Toshifumi|
抄録 <p>We biomechanically evaluated the bone fixation rigidity of an ONI plate (Group I) during fixation of experimentally created transcondylar humerus fractures in cadaveric elbows, which are the most frequently observed humeral fractures in the elderly, and compared it with the rigidity achieved by 3 conventional fixation methods:an LCP reconstruction plate 3.5 using a locking mechanism (Group II), a conventional reconstruction plate 3.5 (CRP) with a cannulated cancellous screw (Group III), and a CRP with 2 cannulated cancellous screws (CS) in a crisscross orientation (Group IV). In the axial loading test, the mean failure loads were:Group I, 98.9+/-32.6;Group II, 108.5+/-27.2;Group III, 50.0+/-7.5;and Group IV, 34.5+/-12.2 (N). Group I fixations failed at a significantly higher load than those of Groups III and IV (p0.05). In the extension loading test, the mean failure loads were:Group I, 34.0+/-12.4;Group II, 51.0+/-14.8;Group III, 19.3+/-6.0;and Group IV, 14.7+/-3.1 (N). Group IV fixations showed a significantly lower failure load than those of Group I (p0.05). The fixation rigidities against mechanical loading by the ONI plate and LCP plate were comparable. These results suggested that an ONI system might be superior to the CRP and CS method, and comparable to the LCP method in terms of fixation rigidity for distal humerus fractures.</p>
キーワード distal humerus fracture biomechanics internal fixation elderly
Amo Type Original Article
発行日 2010-04
出版物タイトル Acta Medica Okayama
64巻
2号
出版者 Okayama University Medical School
開始ページ 115
終了ページ 120
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 20424666
Web of Science KeyUT 000276996900005
JaLCDOI 10.18926/AMO/57717
フルテキストURL 73_6_523.pdf
著者 Hiranaka, Takaaki| Furumatsu, Takayuki| Okazaki, Yoshiki| Kamatsuki, Yusuke| Masuda, Shin| Okazaki, Yuki| Takihira, Shota| Miyazawa, Shinichi| Nakata, Eiji| Ozaki, Toshifumi|
抄録 The case of an individual with a bilateral anterior cruciate ligament (ACL) tear combined with a medial meniscus (MM) posterior root tear is described. A 34-year-old Japanese man with bilateral ACL rupture that occurred > 10 years earlier was diagnosed with bilateral ACL tear combined with MM posterior root tear (MMPRT). We performed a transtibial pullout repair of the MMPRT with ACL reconstruction. The tibial tunnels for the MM posterior root repair and ACL reconstruction were created separately. Postoperatively, a good clinical outcome and meniscal healing were obtained. Our surgical technique may thus contribute to anatomical MM posterior root repair and ACL reconstruction.
キーワード bilateral anterior cruciate ligament tear medial meniscus posterior root tear pullout repair case report
Amo Type Case Report
発行日 2019-12
出版物タイトル Acta Medica Okayama
73巻
6号
出版者 Okayama University Medical School
開始ページ 523
終了ページ 528
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
著作権者 CopyrightⒸ 2019 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 31871335
Web of Science KeyUT 000503431400008
JaLCDOI 10.18926/AMO/30721
フルテキストURL fulltext.pdf
著者 Inoue, Atsushi| Asaumi, Koji| Endo, Hirosuke| Fujiwara, Kazuo| Mitani, Shigeru| Ozaki, Toshifumi|
抄録 The present retrospective study assessed radiographs to determine socket wear in total hip arthroplasty (THA) with 22-mm zirconia or COP (Cobalt-Chrome alloy rich in Cobalt and Phosphorous) heads, and in cemented stems at more than 10 years after operation. Sockets of ultra high molecular weight polyethylene were used in each of two THA groups (13 hips each) in a clinical trial in our hospital between 1989 and 1990. Three observers carried out masked assessments of the radiographs. Upon fi nal examination, there was no remarkable loosening in the zirconia or COP group, and no case had required revision surgery as of 2005. There was a statistically signifi cant diff erence between the 2 groups in average annual linear wear, at 0.093 mm/year and 0.046 mm/year in the zirconia and COP groups, respectively. Volume wear and average annual volume wear were also signifi cantly greater in the zirconia group despite its superior mechanical strength and toughness in vitro. Our present fi ndings do not confi rm early expectations of lower wear in long-term results of 22-mm zirconia femoral heads used in THA.
キーワード total hip arthroplasty zirconia head COP head polyethylene wear
Amo Type Original Article
発行日 2006-12
出版物タイトル Acta Medica Okayama
60巻
6号
出版者 Okayama University Medical School
開始ページ 311
終了ページ 318
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 17189974
Web of Science KeyUT 000243019000002
フルテキストURL IntOrthop_43_5_1239.pdf Tables.pdf Fig.pdf
著者 Furumatsu, Takayuki| Miyazawa, Shinichi| Fujii, Masataka| Tanaka, Takaaki| Kodama, Yuya| Ozaki, Toshifumi|
キーワード Arthroscopic scoring Medial meniscus Meniscal healing Posterior root tear Transtibial pullout repair
発行日 2018-08-01
出版物タイトル International Orthopaedics
43巻
5号
出版者 Springer
開始ページ 1239
終了ページ 1245
ISSN 03412695
NCID AA0068148X
資料タイプ 学術雑誌論文
言語 English
OAI-PMH Set 岡山大学
論文のバージョン author
PubMed ID 30069591
DOI 10.1007/s00264-018-4071-z
Web of Science KeyUT 000466730800024
関連URL isVersionOf https://doi.org/10.1007/s00264-018-4071-z
JaLCDOI 10.18926/AMO/55439
フルテキストURL 71_5_413.pdf
著者 Furumatsu, Takayuki| Kodama, Yuya| Kamatsuki, Yusuke| Hino, Tomohito| Ozaki, Toshifumi|
抄録 Extrusion of the medial meniscus (MM) is associated with knee joint pain in osteoarthritic knees. The relationships among MM radial/oblique tears, MM extrusion (MME), and the effect of arthroscopic meniscal repair are not established. Here we evaluated the effects of arthroscopic all-inside MM repair on MME and the clinical outcomes in patients with radially oriented MM tears and mildly osteoarthritic knees. Twenty patients with a symptomatic radial or oblique tear of the MM posterior segment, MME ≥2.5 mm, and mildly osteoarthritic knees were treated using FasT-Fix 360 All-inside Meniscal Suture devices. We used magnetic resonance imaging (MRI) to measure the patients’ MM body width (MMBW), absolute MME, and relative MME. The Japanese Knee Injury and Osteoarthritis Outcome Score, Lysholm, Tegner, IKDC Subjective Knee Evaluation, and Visual Analogue Scale scores were obtained. Arthroscopic all-inside MM repair prevented increases of absolute and relative MME. The preoperative and 3- and 12-month MRI-based MMBW values were similar. Over a 24-month follow-up after the MM repairs, the clinical scores showed significant improvements. Our results suggest that all-inside meniscal repairs would be useful in preventing the progression of MME in patients suffering from symptomatic MM radial/oblique tears associated with mildly osteoarthritic knees.
キーワード medial meniscus radial/oblique tear meniscal repair meniscal extrusion osteoarthritic knee
Amo Type Original Article
発行日 2017-10
出版物タイトル Acta Medica Okayama
71巻
5号
出版者 Okayama University Medical School
開始ページ 413
終了ページ 418
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
著作権者 CopyrightⒸ 2017 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 29042699
著者 Furumatsu, Takayuki| Hachioji, Motomi| Saiga, Kenta| Takata, Naoki| Yokoyama, Yusuke| Ozaki, Toshifumi|
発行日 2010-01-01
出版物タイトル Biochemical and Biophysical Research Communications
391巻
1号
資料タイプ 学術雑誌論文
フルテキストURL fulltext.pdf
著者 Tetsunaga, Tomonori| Yamada, Kazuki| Tetsunaga, Tomoko| Sanki, Tomoaki| Kawamura, Yoshi| Ozaki, Toshifumi|
キーワード Hip Navigation system Total hip replacement Retrospective study
発行日 2020-04-15
出版物タイトル Journal of Orthopaedic Surgery and Research
15巻
1号
出版者 BMC
開始ページ 147
ISSN 1749-799X
資料タイプ 学術雑誌論文
言語 English
OAI-PMH Set 岡山大学
PubMed ID 32295628
Web of Science KeyUT 000528950200002
関連URL isVersionOf https://doi.org/10.1186/s13018-020-01673-y
著者 Furumatsu, Takayuki| Okazaki, Yuki| Hiranaka, Takaaki| Kodama, Yuya| Kamatsuki, Yusuke| Okazaki, Yoshiki| Zhang, Ximing| Ozaki, Toshifumi|
備考 This fulltext is available in Apr. 2021.|
発行日 2020-04-10
出版物タイトル Journal of Orthopaedic Science
出版者 Elsevier
ISSN 09492658
NCID AA11052566
資料タイプ 学術雑誌論文
言語 English
OAI-PMH Set 岡山大学
著作権者 © 2020 The Japanese Orthopaedic Association.
論文のバージョン author
PubMed ID 32284294
DOI 10.1016/j.jos.2020.03.012
関連URL isVersionOf https://doi.org/10.1016/j.jos.2020.03.012
JaLCDOI 10.18926/AMO/55304
フルテキストURL 71_4_279.pdf
著者 Fujii, Yosuke| Fujiwara, Kazuo| Tetsunaga, Tomonori| Miyake, Takamasa| Yamada, Kazuki| Endo, Hirosuke| Abe, Nobuhiro| Sugita, Naohiko| Mitsuishi, Mamoru| Inoue, Takayuki| Nakashima, Yoshio| Ozaki, Toshifumi|
抄録 We developed a surface matching-type computed tomography (CT)-based navigation system for total hip arthroplasty (the N-navi; TEIJIN NAKASHIMA MEDICAL, Okayama, Japan). In the registration step, surface matching was performed with digitizing points on the pelvic bone surface after coarse paired matching. In the present study, we made model bones from the CT data of patients whose acetabular shapes had various deformities. We measured the distances and angles after surface matching from the fiducial points and evaluated the ability to correct surface-matching registration on each pelvic form, using several areas and numbers of points. When the surface-matching points were taken on the superior area of the acetabulum, the correction was easy for the external direction, but it was difficult to correct for the anterior and proximal directions. The correction was difficult for external and proximal directions on the posterior area. Each area of surface-matching points has particular directions that are easily corrected and other directions that are difficult to correct. The shape of the pelvis also affected the correction ability. Our present findings suggest that checking the position after coarse paired matching and choosing the surface-matching area and points that are optimal to correct will improve the accuracy of total hip arthroplasty and reduce surgical times.
キーワード total hip arthroplasty CT-based navigation system surface matching
Amo Type Original Article
発行日 2017-08
出版物タイトル Acta Medica Okayama
71巻
4号
出版者 Okayama University Medical School
開始ページ 279
終了ページ 289
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
著作権者 CopyrightⒸ 2017 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 28824183
フルテキストURL JOS_24_2_377.pdf
著者 Omori, Toshinori| Fujiwara, Tomohiro| Kunisada, Toshiyuki| Takeda, Ken| Hasei, Joe| Yoshida, Aki| Yanai, Hiroyuki| Ozaki, Toshifumi|
発行日 2019-03
出版物タイトル Journal of Orthopaedic Science
24巻
2号
出版者 Elsevier
開始ページ 377
終了ページ 381
ISSN 0949-2658
NCID AA11627828
資料タイプ 学術雑誌論文
言語 English
OAI-PMH Set 岡山大学
著作権者 © 2016 The Japanese Orthopaedic Association
論文のバージョン author
PubMed ID 28187993
DOI 10.1016/j.jos.2016.12.011
Web of Science KeyUT 000460662100033
関連URL isVersionOf https://doi.org/10.1016/j.jos.2016.12.011
著者 Mazaki, Tetsuro| Shiozaki, Yasuyuki| Yamane, Kentaro| Yoshida, Aki| Nakamura, Mariko| Yoshida, Yasuhiro| Zhou, Di| Kitajima, Takashi| Tanaka, Masato| Ito, Yoshihiro| Ozaki, Toshifumi| Matsukawa, Akihiro|
発行日 2014-03-25
出版物タイトル Scientific Reports
4巻
資料タイプ 学術雑誌論文
フルテキストURL CTR_2019_1631298.pdf Fig.pdf
著者 Hino, Tomohito| Furumatsu, Takayuki| Miyazawa, Shinichi| Fujii, Masataka| Kodama, Yuya| Kamatsuki, Yusuke| Okazaki, Yoshiki| Masuda, Shin| Okazaki, Yuki| Ozaki, Toshifumi|
キーワード Medial meniscus posterior insertion histological analysis knee osteoarthritis medial meniscus posterior root tear transtibial pullout repair
発行日 2019-07-09
出版物タイトル Connective Tissue Research
61巻
6号
出版者 Taylor and Francis
開始ページ 546
終了ページ 553
ISSN 0300-8207
NCID AA00615033
資料タイプ 学術雑誌論文
言語 English
OAI-PMH Set 岡山大学
論文のバージョン author
PubMed ID 31181971
DOI 10.1080/03008207.2019.1631298
Web of Science KeyUT 000478374800001
関連URL isVersionOf https://doi.org/10.1080/03008207.2019.1631298
フルテキストURL J_Orthop_Sci_22_4_731.pdf fig.pdf tbl.pdf
著者 Furumatsu, Takayuki| Fujii, Masataka| Kodama, Yuya| Ozaki, Toshifumi|
備考 This is an Accepted Manuscript of an article published by Elsevier|
発行日 2017-07
出版物タイトル Journal of Orthopaedic Science
22巻
4号
出版者 Elsevier
開始ページ 731
終了ページ 736
ISSN 0949-2658
NCID AA11052566
資料タイプ 学術雑誌論文
言語 English
OAI-PMH Set 岡山大学
著作権者 https://creativecommons.org/licenses/by-nc-nd/4.0/deed.ja
論文のバージョン author
PubMed ID 28416188
DOI 10.1016/j.jos.2017.03.013
Web of Science KeyUT 000407394700025
関連URL isVersionOf https://doi.org/10.1016/j.jos.2017.03.013