School of Veterinary Medicine

余戸 拓也

ヨウゴ タクヤ  (Takuya Yogo)

基本情報

所属
日本獣医生命科学大学 獣医学部 獣医学科

J-GLOBAL ID
200901040189322828
researchmap会員ID
5000081046

論文

 51
  • Daisuke YAZAWA, Masakazu SHIMADA, Nobuo KANNO, Shuji SUZUKI, Takuya YOGO, Yasuji HARADA, Yasushi HARA
    Journal of Veterinary Medical Science 2024年  
  • Ryoichi SUZUKI, Masakazu SHIMADA, Kunihiro MORIMOTO, Nobuo KANNO, Shuji SUZUKI, Takuya YOGO, Yasuji HARADA, Masaki MICHISHITA, Yasushi HARA
    Japanese Journal of Veterinary Anesthesia & Surgery 54(2) 45-52 2023年  査読有り
  • Masakazu Shimada, Nichika Mizokami, Tom Ichinohe, Nobuo Kanno, Shuji Suzuki, Takuya Yogo, Yasuji Harada, Yasushi Hara
    The Journal of veterinary medical science 82(7) 908-916 2020年5月25日  査読有り
    The object of this study is to evaluate the long-term outcome of hind limb weight-bearing function and progression of stifle osteoarthritis (OA) after tibial plateau leveling osteotomy (TPLO). Groups were classified by the degree of cranial cruciate ligament (CrCL) damage and presence or absence of medial meniscus damage as macroscopically evaluated during surgery. Weight-bearing function was assessed via the peak vertical force (PVF), and OA progression was assessed via the radiographic OA score (OAS) preoperatively and 1, 3, 6, 12, 18, 24, and 36 months postoperatively. In all stifles, PVF was significantly higher within 6 months postoperatively than preoperatively, and this high ratio was maintained for 36 months. The OAS was significantly higher 24 months postoperatively than preoperatively in stifles with a partial CrCL tear, and significantly increased at each timepoint after 3 months postoperatively in stifles with complete CrCL rupture. The OAS remained consistently lower in stifles with a partial CrCL tear and no treatment of the medial meniscus than in stifles with complete rupture. Thus, after TPLO, the weight-bearing function improved in the early postoperative period and was maintained for as long as 36 months. Although OA progressed over time after TPLO, the progression was more gradual in stifles with partial tears than in those with complete rupture. Canine patients would benefit from earlier surgical intervention through development of technology that enables early detection of ligament degeneration.
  • Sawako Murakami, Yukari Nagahiro, Masakazu Shimada, Nobuo Kanno, Shuji Suzuki, Takuya Yogo, Yasuji Harada, Yasushi Hara
    Veterinary and comparative orthopaedics and traumatology : V.C.O.T 2020年5月14日  査読有り
    OBJECTIVES:  Dogs with patella alta reportedly have a shorter extensor mechanism than normal dogs. The present study aimed to measure the length of the extensor mechanism and to assess the effect of limb position on the quadriceps muscle length (QML)/femoral bone length (FL) ratio. STUDY DESIGN:  Three-dimensional computed tomography images were taken of 12 Beagle dogs. Each dog underwent computed tomographic imaging 24 times with different limb positions. The QML/FL was measured on each image, along with the hip flexion-extension, hip abduction-adduction and stifle flexion-extension angles. Multiple regression analysis was used to determine the effect of these angles on the QML/FL. RESULTS:  The QML/FL was increased with the hip extended (standardized partial regression coefficient 0.855 with linear plotting, 0.829 with log plotting) and with the stifle flexed (standardized partial regression coefficient 0.814 with linear plotting, 0.800 with log plotting). The partial regression coefficient of the hip abduction-adduction angle was small, indicating a small impact on the QML/FL. The 95% confidence range of the QML/FL with the hip extended and stifle flexed was 0.87 to 1.00 (mean ± standard deviation: 0.93 ± 0.03). CONCLUSION:  The QML/FL was more influenced by joint angles when the hip was flexed or the stifle was extended. Hence, these positions should be avoided when evaluating the QML/FL so that the QML is less altered by slight positioning disparities.
  • 渋谷 比斗美, 田中 祥代, 鈴木 周二, 余戸 拓也, 原田 恭治, 神野 信夫, 佐藤 朝香, 原 康
    日本獣医学会学術集会講演要旨集 162回 464-464 2019年8月  

MISC

 366

書籍等出版物

 10

講演・口頭発表等

 7

担当経験のある科目(授業)

 9

共同研究・競争的資金等の研究課題

 1

その他

 4