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Dive into the research topics where Hiromi Otsuka is active.

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Featured researches published by Hiromi Otsuka.


Journal of Orthopaedic Science | 2012

Japanese Orthopaedic Association Hip Disease Evaluation Questionnaire (JHEQ): a patient-based evaluation tool for hip-joint disease. The Subcommittee on Hip Disease Evaluation of the Clinical Outcome Committee of the Japanese Orthopaedic Association

Tadami Matsumoto; Ayumi Kaneuji; Yoshimitsu Hiejima; Hajime Sugiyama; Haruhiko Akiyama; Takashi Atsumi; Masaji Ishii; Kiyoko Izumi; Toru Ichiseki; Hiroshi Ito; Takahiro Okawa; Kenji Ohzono; Hiromi Otsuka; Shunji Kishida; Seneki Kobayashi; Takeshi Sawaguchi; Nobuhiko Sugano; Ikumasa Nakajima; Shigeru Nakamura; Yukiharu Hasegawa; Kanji Fukuda; Genji Fujii; Taro Mawatari; Satoshi Mori; Yuji Yasunaga; Masao Yamaguchi

BackgroundThe Japanese Orthopaedic Association Hip Score is widely used in Japan, but this tool is designed to reflect the viewpoint of health-care providers rather than that of patients. In gauging the effect of medical therapies in addition to clinical results, it is necessary to assess quality of life (QOL) from the viewpoint of patients. However, there is no tool evaluating QOL for Japanese patients with hip-joint disease.MethodsWith the aim of more accurately classifying QOL for Japanese patients with hip-joint disease, we prepared a questionnaire with 58 items for the survey derived from 464 opinions obtained from approximately 100 Japanese patients with hip-joint disease and previously devised evaluation criteria. In the survey, we collected information on 501 cases, and 402 were subjected to factor analysis. From this, we formulated three categories—movement, mental, and pain—each comprising 7 items, for a total of 21 items to be used as evaluation criteria for hip-joint function.ResultsThe Cronbach’s α coefficients for the three categories were 0.93, 0.93, and 0.95, respectively, indicating the high reliability of the evaluation criteria. The 21 items included some related to the Asian lifestyle, such as use of a Japanese-style toilet and rising from the floor, which are not included in other evaluation tools.ConclusionsThis self-administered questionnaire may become a useful tool in the evaluation of not only Japanese patients, but also of members of other ethnic groups who engage in deep flexion of the hip joint during daily activities.


Ultrasound in Medicine and Biology | 2014

Low-intensity pulsed ultrasound therapy stimulates callus formation between host femur and cortical onlay strut allograft.

Haruhiko Akiyama; Yudo Hachiya; Hiromi Otsuka; Makoto Kurisuno; Keiichi Kawanabe; Naoyuki Katayama; Hisanori Ohura; Koji Yamamoto; Keiji Sato; Shuichi Matsuda

Cortical onlay strut allografting is a promising surgical option to reconstruct and reinforce the deficient femur in a hip arthroplasty. However, the union of the allograft to the host bone takes a long time. To accelerate the process of cortical onlay strut allograft healing, we studied the effects of low-intensity pulsed ultrasound (LIPUS) on callus formation. From 2 wk after the operation, LIPUS was given for 20 min/d at each end of the strut allograft. The LIPUS treatment group was assigned 14 allograft transplantations, while 21 control patients were treated without LIPUS. The LIPUS treatment group formed calluses and had complete bridging between the host femur and the allograft faster after operation (16.9 and 29.4 wk after operation, respectively) compared with the control group (40.7 and 82.0 wk after operation, respectively). Our findings showed that LIPUS stimulated bone bonding between the host femur and the cortical onlay strut allografts.


Journal of Bone and Joint Surgery-british Volume | 2011

Revision total hip arthroplasty using a Kerboull-type acetabular reinforcement device with bone allograft

Haruhiko Akiyama; Kengo Yamamoto; M. Tsukanaka; Keiichi Kawanabe; Hiromi Otsuka; Kazutaka So; Koji Goto; Takashi Nakamura


Journal of Orthopaedic Science | 2011

Long-term outcomes of shelf acetabuloplasty for developmental dysplasia of the hip in adults: a minimum 20-year follow-up study

Shiro Hirose; Hiromi Otsuka; Takkan Morishima; Keiji Sato


Archives of Orthopaedic and Trauma Surgery | 2012

Impaction bone grafting for femoral revision hip arthroplasty with Exeter Universal stem in Japan

Toshiki Iwase; Hiromi Otsuka; Naoyuki Katayama; Hiroshi Fujita


Journal of Orthopaedic Science | 2012

A pilot project for the Japan arthroplasty register

Haruhiko Akiyama; Akiho Hoshino; Hirokazu Iida; Hiroyuki Shindo; Yoshinori Takakura; Hiromasa Miura; Kengo Yamamoto; Shinichi Yoshiya; Yukiharu Hasegawa; Tadashi Shimamura; Masahiro Kurosaka; Hiromi Otsuka; Keiichi Kawanabe; Kenji Kawate; Yoshitada Harada; Takashi Nakamura


Journal of Orthopaedic Science | 2012

Multi-center study of use of the Exeter stem in Japan: evaluation of 1000 primary THA

Hiroshi Fujita; Naoyuki Katayama; Toshiki Iwase; Hiromi Otsuka


Journal of Orthopaedic Science | 2012

Outcomes of Charnley total hip arthroplasty using improved cementing with so-called second- and third-generation techniques

Shiro Hirose; Hiromi Otsuka; Takkan Morishima; Keiji Sato


Journal of Orthopaedic Science | 2011

A novel technique for impaction bone grafting in acetabular reconstruction of revision total hip arthroplasty using an ex vivo compaction device

Haruhiko Akiyama; Takkan Morishima; Mitsuru Takemoto; Koji Yamamoto; Hiromi Otsuka; Toshiki Iwase; Tamon Kabata; Tsunemitsu Soeda; Keiichi Kawanabe; Keiji Sato; Takashi Nakamura


Journal of Veterinary Medical Science | 2006

A Case of Protein-Losing Enteropathy Treated with Methotrexate in a Dog

Masashi Yuki; Noriko Sugimoto; Kuniaki Takahashi; Hiromi Otsuka; Naohito Nishii; Kiyomi Suzuki; Tetsushi Yamagami; Hiroshi Ito

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Keiji Sato

Aichi Medical University

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Naoyuki Katayama

Memorial Hospital of South Bend

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