タイトル(別表記) Japanese guidelines for the treatment of hip fractures in the elderly
フルテキストURL 122_253.pdf
著者 野田 知之| 尾﨑 敏文|
出版物タイトル 岡山医学会雑誌
発行日 2010-12-01
122巻
3号
開始ページ 253
終了ページ 257
ISSN 0030-1558
言語 日本語
著作権者 Copyright (c) 2010 岡山医学会
論文のバージョン publisher
DOI 10.4044/joma.122.253
NAID 130004903185
JaLCDOI 10.18926/AMO/46634
フルテキストURL 65_3_211.pdf
著者 Nakanishi, Kazuo| Yamane, Kentarou| Tanaka, Masato| Misawa, Haruo| Saiga, Kenta| Ozaki, Toshifumi|
抄録 Here we report a case of surgery for kyphosis of the thoracolumbar spine in an elderly patient, in whom surgery was performed because the patient had developed intractable digestive symptoms. The case was that of a 76-year-old female with complaints of back pain and dysphagia. When videofluoroscopic examination (VF) of swallowing was performed in the cardia of the stomach, images that indicated stagnation and the reflux of food were observed. It was easier for the patient to swallow food in the extension position. We performed corrective fusion of the posterior spine. After the surgery, the kyphosis angle was improved to 27°, the patient's back pain was alleviated, and it became easier for the patient to swallow food. VF also showed that the patient's difficulties with the passage of food had improved. We believe that surgery is a good treatment option for cases of kyphosis with digestive symptoms and deteriorating activities of daily living (ADL), even in the absence of pain and paralysis. VF is also useful for performing evaluations before and after surgery.
キーワード kyphosis dysphagia videofluoroscopic examination of swallowing (VF) fusion
Amo Type Case Report
出版物タイトル Acta Medica Okayama
発行日 2011-06
65巻
3号
出版者 Okayama University Medical School
開始ページ 211
終了ページ 214
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 CopyrightⒸ 2011 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 21709720
Web of Science KeyUT 000292017500009
著者 Miyake, Yoshiaki| Furumatsu, Takayuki| Kubota, Satoshi| Kawata, Kazumi| Ozaki, Toshifumi| Takigawa, Masaharu|
発行日 2011-06-03
出版物タイトル Biochemical and Biophysical Research Communications
409巻
2号
資料タイプ 学術雑誌論文
著者 島村 安則| 井上 円加| 小澤 正嗣| 金澤 智子| 斎藤 太一| 中原 龍一| 野田 知之| 西田 圭一郎| 尾﨑 敏文|
発行日 2011-08-01
出版物タイトル 岡山医学会雑誌
123巻
2号
資料タイプ 学術雑誌論文
JaLCDOI 10.18926/AMO/47262
フルテキストURL 65_6_369.pdf
著者 Terada, Chuji| Yoshida, Aki| Nasu, Yoshihisa| Mori, Shuji| Tomono, Yasuko| Tanaka, Masato| Takahashi, Hideo K.| Nishibori, Masahiro| Ozaki, Toshifumi| Nishida, Keiichiro|
抄録 We investigated the expression and localization of high-mobility group box chromosomal protein-1 (HMGB-1) in human osteoarthritic (OA) cartilage in relation to the histopathological grade of cartilage destruction, and examined the role of HMGB-1 in the regulation of proinflammatory cytokine expression in chondrocytes. An immunohistochemical study demonstrated that total HMGB-1-positive cell ratios increase as the Osteoarthritis Research Society International (OARSI) histological grade increased. The population of cytoplasmic HMGB-1-positive chondrocytes was especially increased in the deep layers of higher-grade cartilage. The ratios and localization of receptors for advanced glycation end products (RAGE) expression by chondrocytes in Grade 2, 3, and 4 were significantly higher than those in Grade 1. In vitro stimulation with IL-1β, but not TNFα, significantly upregulated the expression of HMGB-1 mRNA by human OA chondrocytes. Both IL-1β and TNFα promoted the translocation of HMGB-1 from nuclei to cytoplasm. IL-1β and TNFα secretions were stimulated at higher levels of HMGB-1. The results of our study suggest the involvement of HMGB-1 in the pathogenesis of cartilage destruction in OA.
キーワード HMGB-1 RAGE chondrocyte osteoarthritis cartilage
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2011-12
65巻
6号
出版者 Okayama University Medical School
開始ページ 369
終了ページ 377
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 CopyrightⒸ 2011 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 22189477
Web of Science KeyUT 000298516900003
著者 森本 裕樹| 尾﨑 敏文|
発行日 2011-12-01
出版物タイトル 岡山医学会雑誌
123巻
3号
資料タイプ 学術雑誌論文
JaLCDOI 10.18926/AMO/48562
フルテキストURL 66_3_231.pdf
著者 Takahashi, Kingo| Hayashi, Masamichi| Fujii, Toshihiro| Kawamura, Kenji| Ozaki, Toshifumi|
抄録 The objective of early rehabilitation after anterior cruciate ligament (ACL) reconstruction is to increase the muscle strength of the lower extremities. Closed kinetic chain (CKC) exercise induces co-contraction of the agonist and antagonist muscles. The purpose of this study was to compare the postoperative muscle strength/mass of subjects who performed our new CKC exercise (new rehabilitation group:group N) from week 4, and subjects who received traditional rehabilitation alone (traditional rehabilitation group:group T). The subjects stood on the device and maintained balance. Then, low-frequency stimulation waves were applied to 2 points each in the anterior and posterior region of the injured thigh 3 times a week for 3 months. Measurement of muscle strength was performed 4 times (before the start, and then once a month). Muscle mass was evaluated in CT images of the extensor and flexor muscles of 10 knees (10 subjects) in each group. The injured legs of group N showed significant improvement after one month compared to group T. The cross-sectional area of the extensor muscles of the injured legs tended to a show a greater increase at 3 months in group N. This rehabilitation method makes it possible to contract fast-twitch muscles, which may be a useful for improving extensor muscle strength after ACL reconstruction.
キーワード anterior cruciate ligament reconstruction closed kinetic chain electrical muscle stimulation standing-shaking-board exercise
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2012-06
66巻
3号
出版者 Okayama University Medical School
開始ページ 231
終了ページ 237
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 CopyrightⒸ 2012 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 22729103
Web of Science KeyUT 000305669700006
JaLCDOI 10.18926/AMO/48560
フルテキストURL 66_3_213.pdf
著者 Kataoka, Masaki| Kunisada, Toshiyuki| Tanaka, Masato| Takeda, Ken| Itani, Satoru| Sugimoto, Yoshihisa| Misawa, Haruo| Senda, Masuo| Nakahara, Shinnosuke| Ozaki, Toshifumi|
抄録 There are a variety of treatment options for patients with spinal metastasis, and predicting prognosis is essential for selecting the proper treatment. The purpose of the present study was to identify the significant prognostic factors for the survival of patients with spinal metastasis. We retrospectively reviewed 143 patients with spinal metastasis. The median age was 61 years. Eleven factors reported previously were analyzed using the Cox proportional hazards model:gender, age, performance status, neurological deficits, pain, type of primary tumor, metastasis to major organs, previous chemotherapy, disease-free interval before spinal metastasis, multiple spinal metastases, and extra-spinal bone metastasis. The average survival of study patients after the first visit to our clinic was 22 months. Multivariate survival analysis demonstrated that type of primary tumor (hazard ratio [HR]=6.80, p<0.001), metastasis to major organs (HR=2.01, p=0.005), disease-free interval before spinal metastasis (HR=1.77, p=0.028), and extra-spinal bone metastasis (HR=1.75, p=0.017) were significant prognostic factors. Type of primary tumor was the most powerful prognostic factor. Other prognostic factors may differ among the types of primary tumor and may also be closely associated with primary disease activity. Further analysis of factors predicting prognosis should be conducted with respect to each type of primary tumor to help accurately predict prognosis.
キーワード spine metastasis survival prognostic factor cancer
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2012-06
66巻
3号
出版者 Okayama University Medical School
開始ページ 213
終了ページ 219
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 CopyrightⒸ 2012 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 22729101
Web of Science KeyUT 000305669700004
JaLCDOI 10.18926/AMO/48692
フルテキストURL 66_4_363.pdf
著者 Tanaka, Masato| Sugimoto, Yoshihiro| Misawa, Haruo| Takigawa, Tomoyuki| Kunisada, Toshiyuki| Ozaki, Toshifumi|
抄録 Spinal deformity is an important clinical manifestation after surgery for spinal cord tumors. One-third of patients who receive laminectomies and irradiation of the spinal column develop scoliosis, kyphosis, or kyphoscoliosis. Recent reports indicate good results after scoliosis surgery using segmental pedicle screws and a navigation system, but these reported studies have not included surgery for post-laminectomy kyphosis. Hooks and wires are ineffective in such patients who undergo laminectomy, and there are also high perioperative risks with insertion of pedicle screws because landmarks have been lost. Here, we report on the 5-year follow-up of a 13-year-old male patient with post-laminectomy and post-irradiation thoracic kyphoscoliosis after surgical treatment of spinal astrocytoma. Posterior segmental pedicle screw fixation was performed safely using a computer-assisted technique. The authors present the first case report for treatment of this condition using a navigation system.
キーワード astrocytoma scoliosis kyphoscoliosis navigation segmental pedicle screw fixation
Amo Type Case Report
出版物タイトル Acta Medica Okayama
発行日 2012-08
66巻
4号
出版者 Okayama University Medical School
開始ページ 363
終了ページ 368
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 CopyrightⒸ 2012 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 22918210
Web of Science KeyUT 000307918900010
著者 佐々木 剛| 田澤 大| 長谷井 嬢| 国定 俊之| 吉田 晶| 橋本 悠里| 矢野 修也| 吉田 亮介| 宇野 太| 香川 俊輔| 森本 裕樹| 浦田 泰生| 藤原 俊義| 尾﨑 敏文|
発行日 2012-08-01
出版物タイトル 岡山医学会雑誌
124巻
2号
資料タイプ 学術雑誌論文
JaLCDOI 10.18926/AMO/49047
フルテキストURL 66_6_499.pdf
著者 Sugimoto, Yoshihisa| Tanaka, Masato| Nakahara, Ryuichi| Misawa, Haruo| Kunisada, Toshiyuki| Ozaki, Toshifumi|
抄録 An 11 year-old girl had 66 degrees of kyphosis in the thoracolumbar junction. For the purpose of planning for kyphosis correction, we created a 3-D, full-scale model of the spine and consulted spinal navigation. Three-dimensional models are generally used as tactile guides to verify the surgical approach and portray the anatomic relations specific to a given patient. We performed posterior fusion from Th10 to L3, and vertebral column resection of Th12 and L1. Screw entry points, directions, lengths and diameters were determined by reference to navigation. Both tools were useful in the bone resection. We could easily detect the posterior element to be resected using the 3D model. During the anterior bony resection, navigation helped us to check the disc level and anterior wall of the vertebrae, which were otherwise difficult to detect due to their depth in the surgical field. Thus, the combination of navigation and 3D models helped us to safely perform surgery for a patient with complex spinal deformity.
キーワード congenital scoliosis kyphosis navigation 3-dimensional models
Amo Type Case Report
出版物タイトル Acta Medica Okayama
発行日 2012-12
66巻
6号
出版者 Okayama University Medical School
開始ページ 499
終了ページ 502
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 CopyrightⒸ 2012 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 23254585
Web of Science KeyUT 000312966100010
JaLCDOI 10.18926/AMO/49043
フルテキストURL 66_6_469.pdf
著者 Shiozaki, Yasuyuki| Ito, Yasuo| Sugimoto, Yoshihisa| Tomioka, Masao| Shimokawa, Tetsuya| Mazaki, Tetsuro| Koshimune, Koichiro| Tanaka, Masato| Ozaki, Toshifumi|
抄録 In this study, we studied the relationship between fracture patterns and motor function recovery in 70 consecutive patients with cervical spinal cord injury. Fractures were categorized into 6 fracture types and subdivided into stages according to the Allen-Ferguson classification system:compressive flexion (CF), distractive flexion (DF), compressive extension (CE), distractive extension (DE), vertical compression (VC) and lateral flexion (LF). Paralysis was evaluated using the American Spinal Injury Association (ASIA) impairment scale at the time of injury and 3 months afterwards. The residual rate of complete motor palsy (ASIA grade A or B) at the final examination was higher in those patients with DE fractures than those with CF, DF or CE. The final outcomes were as follows. Of the 14 patients who were classified with CF fractures, residual palsy was frequently seen in patients who had stage 5 injury. Of the 27 patients with DF fractures, residual palsy occurred in about half of the patients who had stage 4 or 5 injury. Of the 18 patients with CE fractures, residual palsy occurred in half of the patients with stage 3 injury or higher. Finally, of the 7 patients with DE fractures, the rate of residual palsy was high even for the stage 1 and 2 cases;indeed, all DE patients who had complete motor palsy at the first examination had residual palsy at the final examination. Accordingly, we conclude that motor recovery may be related to fracture pattern.
キーワード cervical spinal cord injury motor function recovery fracture patterns
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2012-12
66巻
6号
出版者 Okayama University Medical School
開始ページ 469
終了ページ 473
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 CopyrightⒸ 2012 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 23254581
Web of Science KeyUT 000312966100006
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
JaLCDOI 10.18926/AMO/49255
フルテキストURL 67_1_35.pdf
著者 Watanabe, Masutaka| Arita, Seizaburo| Hashizume, Hiroyuki| Honda, Mitsugi| Nishida, Keiichiro| Ozaki, Toshifumi|
抄録 The purpose of this study was to quantitatively evaluate Akahori's preoperative classification of cubital tunnel syndrome. We analyzed the results for 57 elbows that were treated by a simple decompression procedure from 1997 to 2004. The relationship between each item of Akahori's preoperative classification and clinical stage was investigated based on the parameter distribution. We evaluated Akahori's classification system using multiple regression analysis, and investigated the association between the stage and treatment results. The usefulness of the regression equation was evaluated by analysis of variance of the expected and observed scores. In the parameter distribution, each item of Akahori's classification was mostly associated with the stage, but it was difficult to judge the severity of palsy. In the mathematical evaluation, the most effective item in determining the stage was sensory conduction velocity. It was demonstrated that the established regression equation was highly reliable (R=0.922). Akahori's preoperative classification can also be used in postoperative classification, and this classification was correlated with postoperative prognosis. Our results indicate that Akahori's preoperative classification is a suitable system. It is reliable, reproducible and well-correlated with the postoperative prognosis. In addition, the established prediction formula is useful to reduce the diagnostic complexity of Akahori's classification.
キーワード cubital tunnel syndrome ulnar nerve Akahoriʼs classification multiple regression analysis
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2013-02
67巻
1号
出版者 Okayama University Medical School
開始ページ 35
終了ページ 44
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
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 23439507
Web of Science KeyUT 000316829900005
関連URL http://ousar.lib.okayama-u.ac.jp/metadata/50647
JaLCDOI 10.18926/AMO/49259
フルテキストURL 67_1_65.pdf
著者 Sakata, Kenichiro| Furumatsu, Takayuki| Abe, Nobuhiro| Miyazawa, Shinichi| Sakoma, Yoshimasa| Ozaki, Toshifumi|
抄録 Bone marrow-stimulating techniques such as microfracture and subchondral drilling are valuable treatments for full-thickness cartilage defects. However, marrow stimulation-derived reparative tissues are not histologically well-documented in human osteoarthritis. We retrospectively investigated cartilage repairs after marrow stimulation for the treatment of large cartilage defects in osteoarthritic knees. Tissues were obtained from patients who underwent total knee arthroplasty (TKA) after arthroscopic marrow stimulation in medial compartmental osteoarthritis. Clinical findings and cartilage repair were assessed. Sections of medial femoral condyles were histologically investigated by safranin O staining and anti-type II collagen antibody. Marrow stimulation decreased the knee pain in the short term. However, varus leg alignment gradually progressed, and TKA conversions were required. The grade of cartilage repair was not improved. Marrow stimulations resulted in insufficient cartilage regeneration on medial femoral condyles. Safranin O-stained proteoglycans and type II collagen were observed in the deep zone of marrow-stimulated holes. This study demonstrated that marrow stimulation resulted in failed cartilage repair for the treatment of large cartilage defects in osteoarthritic knees. Our results suggest that arthroscopic marrow stimulation might not improve clinical symptoms for the long term in patients suffering large osteoarthritic cartilage defects.
キーワード bone marrow stimulation microfracture subchondral drilling osteoarthritis of the knee cartilage repair
Amo Type Case Report
出版物タイトル Acta Medica Okayama
発行日 2013-02
67巻
1号
出版者 Okayama University Medical School
開始ページ 65
終了ページ 74
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
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 23439511
Web of Science KeyUT 000316829900009
著者 Hasei, Joe| Sasaki, Tsuyoshi| Tazawa, Hiroshi| Osaki, Shuhei| Yamakawa, Yasuaki| Kunisada, Toshiyuki| Yoshida, Aki| Hashimoto, Yuuri| Onishi, Teppei| Uno, Futoshi| Kagawa, Shunsuke| Urata, Yasuo| Ozaki, Toshifumi| Fujiwara, Toshiyoshi|
発行日 2013-03
出版物タイトル Molecular Cancer Therapeutics
12巻
3号
資料タイプ 学術雑誌論文
JaLCDOI 10.18926/AMO/49670
フルテキストURL 67_2_113.pdf
著者 Sugimoto, Yoshihisa| Tanaka, Masato| Gobara, Hideo| Misawa, Haruo| Kunisada, Toshiyuki| Ozaki, Toshifumi|
抄録 We report on 2 patients who experienced injury to one of their lumbar arteries related to pedicle screw misplacement. In this report, the lumbar pedicle screw holes were made laterally with resultant injury to the lumbar artery. During surgery, arterial bleeding was controlled with pressure and gauze; however, the patients experienced vital shock after surgery. Vital shock ensued and they were rescued by catheter embolization. If patients receiving lumbar instrumentation surgery experience severe anemia or vital shock postoperatively, the surgeon should assume lumbar artery injury as a differential diagnosis.
キーワード catheter embolization complication lumbar artery injury pedicle screw
Amo Type Case Report
出版物タイトル Acta Medica Okayama
発行日 2013-04
67巻
2号
出版者 Okayama University Medical School
開始ページ 113
終了ページ 116
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
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 23603928
Web of Science KeyUT 000317801700006
著者 Shiozaki, Yasuyuki| Kitajima, Takashi| Mazaki, Tetsuro| Yoshida, Aki| Tanaka, Masato| Umezawa, Akihiro| Nakamura, Mariko| Yoshida, Yasuhiro| Ito, Yoshihiro| Ozaki, Toshifumi| Matsukawa, Akihiro|
発行日 2013-04
出版物タイトル International Journal of Nanomedicine
8巻
1号
資料タイプ 学術雑誌論文
著者 Kinami, Yo| Noda, Tomoyuki| Ozaki, Toshifumi|
発行日 2013-05
出版物タイトル Journal of Orthopaedic Science
18巻
3号
資料タイプ 学術雑誌論文
著者 Furumatsu, Takayuki| Matsumoto, Emi| Kanazawa, Tomoko| Fujii, Masataka| Lu, Zhichao| Kajiki, Ryotaro| Ozaki, Toshifumi|
発行日 2013-05-31
出版物タイトル Journal of Biomechanics
46巻
9号
資料タイプ 学術雑誌論文