Faculty Profiles - OZAKI Toshifumi

Papers - OZAKI Toshifumi

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臓器移植とリハビリテーション医療

千田益生, 濱田全紀, 堅山佳美, 濱崎比果瑠, 尾崎敏文

The Japanese Journal of Rehabilitation Medicine ( 特別号 ) S277 - S277 2022.5

術前肺がん患者のサルコペニア・がんロコモと術後合併症の関連性

堅山佳美, 千田益生, 中田英二, 濱田全紀, 国定俊之, 藤原智洋, 尾崎敏文

The Japanese Journal of Rehabilitation Medicine ( 特別号 ) S35 - S35 2022.5

リハビリテーション専門病院での両下肢切断者の治療結果

濱田全紀, 堅山佳美, 千田益生, 茂山幸雄, 坂本吉宏, 徳弘昭博, 尾崎敏文

The Japanese Journal of Rehabilitation Medicine ( 特別号 ) S255 - S255 2022.5

臓器移植とリハビリテーション医療

千田益生, 濱田全紀, 堅山佳美, 濱崎比果瑠, 尾崎敏文

The Japanese Journal of Rehabilitation Medicine ( 特別号 ) S277 - S277 2022.5

リハビリテーション専門病院での両下肢切断者の治療結果

濱田全紀, 堅山佳美, 千田益生, 茂山幸雄, 坂本吉宏, 徳弘昭博, 尾崎敏文

The Japanese Journal of Rehabilitation Medicine ( 特別号 ) S255 - S255 2022.5

術前肺がん患者のサルコペニア・がんロコモと術後合併症の関連性

堅山佳美, 千田益生, 中田英二, 濱田全紀, 国定俊之, 藤原智洋, 尾崎敏文

The Japanese Journal of Rehabilitation Medicine ( 特別号 ) S35 - S35 2022.5

骨軟部腫瘍患者の術前ストレススクリーニング

伊勢真人, 藤原智洋, 堅山佳美, 中田英二, 濱田全紀, 國定俊之, 千田益生, 尾崎敏文, 田島文博

The Japanese Journal of Rehabilitation Medicine ( 特別号 ) S629 - S629 2022.5

Mechanical Study of Various Pedicle Screw Systems including Percutaneous Pedicle Screw in Trauma Treatment. International journal

Yoshiaki Oda, Tomoyuki Takigawa, Yasuo Ito, Haruo Misawa, Tomoko Tetsunaga, Koji Uotani, Toshifumi Ozaki

Medicina (Kaunas, Lithuania) 58 ( 5 ) 2022.4

Authorship：Last author Language：English Publishing type：Research paper (scientific journal)

Background and Objectives: Spine surgery using a percutaneous pedicle screw placement (PPSP) is widely implemented for spinal trauma. However, percutaneous systems have been reported to have weak screw-rod connections. In this study, conventional open and percutaneous systems were biomechanically evaluated and compared. Material and Methods: The experiments were performed in two stages: the first stage was a break test, whereas the second stage was a fatigue test. Four systems were used for the experiments. System 1 was intended for conventional open surgery (titanium rod with a 6.0 mm diameter, using a clamp connecting mechanism). System 2 was a percutaneous pedicle screw (PPS) system for trauma (titanium alloy rod with a 6.0 mm diameter, using ball ring connections). System 3 was a PPS system for trauma (cobalt-chromium alloy rod with a 6.0 mm diameter, using sagittal adjusting screw connections). System 4 was a general-purpose PPS system (titanium alloy rod with a 5.5 mm diameter, using a mechanism where the adapter in the head holds down the screw). Results: Stiffness values of 54.8 N/mm, 43.1 N/mm, 90.9 N/mm, and 39.3 N/mm were reported for systems 1, 2, 3, and 4, respectively. The average number of load cycles in the fatigue test was 134,393, 40,980, 1,550,389, and 147,724 for systems 1 to 4, respectively. At the end of the test, the displacements were 0.2 mm, 16.9 mm, 1.2 mm, and 8.6 mm, respectively. System 1, with a locking mechanism, showed the least displacement at the end of the test. Conclusion: A few PPS systems showed better results in terms on stiffness and life than the open system. The experiments showed that mechanical strength varies depending on the spinal implant. The experiments conducted are essential and significant to provide the mechanical strength required for surgical reconstruction.

DOI： 10.3390/medicina58050565

PubMed

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A randomized phase III trial of denosumab before curettage for giant cell tumor of bone. JCOG1610

Hiroshi Urakawa, Akihito Nagano, Ryunosuke Machida, Kazuhiro Tanaka, Tomoko Kataoka, Yuta Sekino, Yoshihiro Nishida, Mitsuru Takahashi, Toshiyuki Kunisada, Masanori Kawano, Yukihiro Yoshida, Tatsuya Takagi, Kenji Sato, Toru Hiruma, Hiroshi Hatano, Satoshi Tsukushi, Akio Sakamoto, Toshihiro Akisue, Koji Hiraoka, Toshifumi Ozaki

JAPANESE JOURNAL OF CLINICAL ONCOLOGY 2022.4

Language：English Publishing type：Research paper (scientific journal) Publisher：OXFORD UNIV PRESS

Though JCOG1610 gave only descriptive results, the superiority of preoperative denosumab was not observed in patients with giant cell tumor of bone without possible post-operative large bone defect in terms of relapse-free survival.Objectives The aim of JCOG1610 (randomized controlled phase III trial) was to confirm the superiority of preoperative denosumab to curettage with adjuvant local therapy for patients with giant cell tumor of bone without possible post-operative large bone defect. Methods The primary endpoint was relapse-free survival and the total sample size was set at 106 patients. Patient accrual began in October 2017. However, the accrual was terminated in December 2020 due to a recommendation from the Data and Safety Monitoring Committee because of poor patient accrual. Now, we report the descriptive results obtained in this study. Results A total of 18 patients had been registered from 13 Japanese institutions at the time of termination on December 2020. Eleven patients were assigned to Arm A (curettage and adjuvant local therapy) and 7 to Arm B (preoperative denosumab, curettage and adjuvant local therapy). Median follow-up period was 1.6 (range: 0.5-2.8) years. Protocol treatment was completed in all but one patient in Arm A who had a pathological fracture before surgery. All patients in Arm B were treated with five courses of preoperative denosumab. Relapse-free survival proportions in Arm A and B were 90.0% (95% confidence interval: 47.3-98.5) and 100% (100-100) at 1 year, and 60.0% (19.0-85.5) and 62.5% (14.2-89.3) at 2 years, respectively [hazard ratio (95% confidence interval): 1.51 (0.24-9.41)]. Conclusion In terms of relapse-free survival, the superiority of preoperative denosumab was not observed in patients with giant cell tumor of bone without possible post-operative large bone defect.

DOI： 10.1093/jjco/hyac071

Web of Science

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Grade of Subchondral Insufficiency Fracture of the Knee and the Presence of a Posterior Shiny-Corner Lesion are Correlated with Duration of Medial Meniscus Posterior Root Tear in Women.

Yuki Okazaki, Takayuki Furumatsu, Takaaki Hiranaka, Yusuke Kamatsuki, Eiji Nakata, Tomonori Tetsunaga, Kentaro Yamane, Toshifumi Ozaki

Acta medica Okayama 76 ( 2 ) 121 - 127 2022.4

Authorship：Last author Language：English Publishing type：Research paper (scientific journal)

Bone marrow edema (BME) after meniscus injury and risk factors for subchondral insufficiency fracture of the knee (SIFK) have been reported. However, their association with medial meniscus posterior root tear (MMPRT) remains unknown. We investigated the association of BME volume (BME-V), posterior shinycorner lesion (PSCL), and SIFK with MMPRT to examine the correlations between BME-V and medial meniscus extrusion (MME), PSCL and duration from injury to the time of magnetic resonance imaging (duration), and SIFK and duration. Twenty-nine patients who underwent surgery for MMPRT were included (mean age, 59.2; range, 39-84). The presence of PSCL, femoral BME-V (cm3), and SIFK grade (1-4) were evaluated. Preoperative factors, such as MME (mm) and duration (weeks), were investigated using multivariate linear/ logistic regression analyses. Multivariate linear regression analysis revealed duration as a significant factor for high-grade SIFK (p<0.01). Multivariate logistic regression analysis revealed duration as a significant factor for the presence of PSCL (odds ratio=0.94, p<0.05). A long duration of MMPRT leads to severe MME and highgrade SIFK (3 and 4), often resulting in knee arthroplasty. Early diagnosis of MMPRT and pullout repair can prevent severe MME and high-grade SIFK.

DOI： 10.18926/AMO/63405

PubMed

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The role of perioperative chemotherapy in primary high-grade extremity soft tissue sarcoma: a risk-stratified analysis using PERSARC

Ibtissam Acem, Winan J. van Houdt, Dirk J. Grünhagen, Winette T.A. van der Graaf, Anja J. Rueten-Budde, Hans Gelderblom, Cornelis Verhoef, Michiel A.J. van de Sande, Will Aston, Han Bonenkamp, Ingrid M.E. Desar, Peter C. Ferguson, Marta Fiocco, Robert J. van Ginkel, Anthony M. Griffin, Rick L. Haas, Jos A. van der Hage, Andrew J. Hayes, Lee M. Jeys, Akira Kawai, Johnny Keller, Minna K. Laitinen, Katja Maretty-Kongstad, Koichi Ogura, Toshifumi Ozaki, Rob Pollock, Veroniek M. van Praag, Stefan Sleijfer, Myles J. Smith, Maria A. Smolle, Emelie Styring, Joanna Szkandera, Kazuhiro Tanaka, Per-Ulf Tunn, Madeleine Willegger, Reinard Windhager, Jay S. Wunder, Olga Zaikova

European Journal of Cancer 165 71 - 80 2022.4

骨軟部腫瘍患者におけるがん遺伝子パネル検査によるgermline findingの同定

中田英二, 藤原智洋, 国定俊之, 二川摩周, 平沢晃, 尾崎敏文

中部日本整形外科災害外科学会雑誌 65 ( 春季学会 ) 125 - 125 2022.4

術前術後CTと術中に計測した骨盤傾斜の角度の差についての比較検討

小浦卓, 鉄永智紀, 佐藤嘉洋, 廣瀬一樹, 尾崎敏文, 山田和希

中国・四国整形外科学会雑誌 34 ( 1 ) 1 - 5 2022.4

Language：Japanese Publisher：中国・四国整形外科学会

Zimmer Biomet社Augmented Reality Hip Navigation System(AR Hip Navi)を用いてTHAを施行した11例11股を対象に検討した。骨盤傾斜角の計測方法は、術前・術後はCTデータをもとに三次元術前計画ソフトZedHipを用いて計測し、術中はAR Hip Naviを用いて計測した。結果、術前CTでの計測値は平均3.8度、術中AR Hip Naviでの計測値は平均-2.6度、術後CTでの計測値は平均4.1度であった。術前計測値と術中計測値との差の絶対値(術前-術中)は10.1度、術中計測値と術後計測値との差の絶対値(術中-術後)は9.9度、術前計測値と術後計測値との差の絶対値(術前-術後)は2.3度であり、術前-術後の計測値差に比べて術前-術中の計測値差と術中-術後の計測値差は有意に大きかった。

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Other Link： https://search-tp.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2022&ichushi_jid=J02438&link_issn=&doc_id=20220608080001&doc_link_id=%2Fcm4ortho%2F2022%2F003401%2F001%2F0001-0005%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fcm4ortho%2F2022%2F003401%2F001%2F0001-0005%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

脊椎手術を受ける患者から骨粗鬆症治療が必要な患者を見つけ出す

高尾真一郎, 三澤治夫, 鉄永倫子, 魚谷弘二, 小田孔明, 尾崎敏文

中部日本整形外科災害外科学会雑誌 65 ( 春季学会 ) 111 - 111 2022.4

内側楔状骨背側脱臼骨折の1例

福岡史朗, 依光正則, 畑利彰, 佐藤浩平, 上原健敬, 尾崎敏文

中部日本整形外科災害外科学会雑誌 65 ( 春季学会 ) 199 - 199 2022.4

尺骨突き上げ症候群に対する尺骨骨幹部短縮骨切り術と遠位部短縮骨切り術の治療成績の比較

齋藤太一, 根津智史, 島村安則, 西田圭一郎, 尾崎敏文

日本手外科学会雑誌 39 ( 1 ) O66 - 5 2022.4

Management of elderly patients with bone and soft tissue sarcomas: JCOG Bone and Soft Tissue Tumor Study Group International journal

Kazuhiro Tanaka, Toshifumi Ozaki

Japanese Journal of Clinical Oncology 52 ( 6 ) 526 - 530 2022.3

Authorship：Last author Language：English Publishing type：Research paper (scientific journal) Publisher：Oxford University Press (OUP)

Abstract

Approximately, 40% of bone sarcomas and 60% of soft tissue sarcoma arise in patients aged ≥65 years. However, because sarcoma is very rare, there is little evidence regarding the management of elderly patients with sarcoma. Age has been reported as a prognostic factor in patients with sarcomas. The standard therapy for all localized bone and soft tissue sarcomas is surgical resection, even in elderly patients. Radiation or ion-beam therapy can be considered for unresectable sarcomas. Although adjuvant chemotherapy is standard for osteosarcoma, the usefulness of adjuvant chemotherapy for elderly patients has not been verified; therefore, it may not be recommended for elderly patients with osteosarcoma. For elderly patients with advanced osteosarcoma, if general conditions permit, doxorubicin- and/or ifosfamide-based regimens as well as molecular-targeted therapies, including sorafenib, regorafenib and everolimus, may be considered, although these drugs have not been approved for sarcoma in Japan. Adjuvant chemotherapy with doxorubicin plus ifosfamide is recommended for patients with high-risk localized soft tissue sarcoma if they are aged ≤70 years. For first-line treatment of advanced soft tissue sarcoma in elderly patients, doxorubicin monotherapy is considered to be the standard regimen, and pazopanib can be an alternative. For second-line treatment, gemcitabine-based regimens, pazopanib, trabectedin and eribulin may be options for elderly patients with advanced soft tissue sarcoma.

DOI： 10.1093/jjco/hyac027

PubMed

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Cumulated ambulation score as predictor of postoperative mobility in patients with proximal femur fractures

Norio Yamamoto, Yosuke Tomita, Arisa Ichinose, Shintaro Sukegawa, Shigeki Yokoyama, Tomoyuki Noda, Keisuke Kawasaki, Toshifumi Ozaki

Archives of Orthopaedic and Trauma Surgery 2022.3

Japanese Orthopaedic Association (JOA) clinical practice guidelines on the management of soft tissue tumors 2020 - Secondary publication

Akira Kawai, Nobuhito Araki, Keisuke Ae, Toru Akiyama, Toshifumi Ozaki, Hirotaka Kawano, Toshiyuki Kunisada, Minako Sumi, Shunji Takahashi, Kazuhiro Tanaka, Satoshi Tsukushi, Norifumi Naka, Yoshihiro Nishida, Mitsuru Miyachi, Norio Yamamoto, Akihiko Yoshida, Tsukasa Yonemoto, Masahiro Yoshida, Shintaro Iwata

Journal of Orthopaedic Science 27 ( 3 ) 533 - 550 2022.3

Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier BV

BACKGROUND: These clinical practice guidelines are intended to provide recommendations based on the best evidence obtained to date on key issues in clinical practice to improve the prognosis, diagnostic and therapeutic processes for patients with soft tissue tumors. METHODS: The Guidelines Development Committee and Systematic Review Committee were composed of a multidisciplinary team of specialists who play an important role in soft tissue tumor care. Clinical questions (CQs) were determined by choosing key decision-making points based on Algorithms for the diagnosis and treatment of soft tissue tumors. The guidelines were developed according to the "Medical Information Network Distribution Service (Minds) Handbook for Clinical Practice Guideline Development 2014" and "Minds Manual for Clinical Practice Guideline Development 2017." Recommendation strength was rated on two levels and the strength of evidence was rated on four levels. The recommendations were decided based on agreement by 70% or more voters. RESULTS: Twenty-two CQs were chosen by the Guidelines Development Committee. The Systematic Review Committee reviewed the evidence concerning each CQ, a clinical value judgment was added by experts, and the text of each recommendation was determined. CONCLUSION: We established 22 CQs and recommendations for key decision-making points in the diagnosis and treatment of soft tissue tumors according to the Minds Clinical Practice Guideline development methods. We hope that these guidelines will assist the decision-making of all medical staff engaged in the treatment and diagnosis of soft tissue tumors, and eventually lead to improved soft tissue tumor care in the country.

DOI： 10.1016/j.jos.2021.11.023

PubMed

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Pre-and postoperative factors associated with functional outcomes in patients with posterior malleolar fractures

Norio Yamamoto, Kohei Iwamoto, Yosuke Tomita, Yuki Iwamoto, Masahiro Kiyono, Masahide Yoshimura, Tomoyuki Noda, Keisuke Kawasaki, Toshifumi Ozaki

Injury 2022.3

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