Akira Kusumegi
Okayama University
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Publication
Featured researches published by Akira Kusumegi.
Global Spine Journal | 2016
Masayuki Nakahara; Takao Yasuhara; Takafumi Inoue; Yuichi Takahashi; Shinji Kumamoto; Yasukazu Hijikata; Akira Kusumegi; Yushi Sakamoto; Koichi Ogawa; Kenki Nishida
Study Design Retrospective comparative study. Objective To evaluate the accuracy of percutaneous pedicle screw (PPS) placement and intraoperative imaging time using dual fluoroscopy units and their differences between surgeons with more versus less experience. Methods One hundred sixty-one patients who underwent lumbar fusion surgery were divided into two groups, A (n = 74) and B (n = 87), based on the performing surgeons experience. The accuracy of PPS placement and radiation time for PPS insertion were compared. PPSs were inserted with classic technique under the assistance of dual fluoroscopy units placed in two planes. The breach definition of PPS misplacement was based on postoperative computed tomography (grade I: no breach; grade II: <2 mm; grade III: ≤2 to <4 mm). Results Of 658 PPSs, only 21 screws were misplaced. The breach rates of groups A and B were 3.3% (grade II: 3.4%, grade III: 0%) and 3.1% (grade II: 2.6%, grade III: 0.6%; p = 0.91). One patient in grade III misplacement had a transient symptom of leg numbness. Median radiation exposure time during PPS insertion was 25 seconds and 51 seconds, respectively (p < 0.01). Conclusions Without using an expensive imaging support system, the classic technique of PPS insertion using dual fluoroscopy units in the lumbar and sacral spine is fairly accurate and provides good clinical outcomes, even among surgeons lacking experience.
Journal of Spine & Neurosurgery | 2014
Takao Yasuhara; Yuichi Takahashi; Yasukazu Hijikata; Tetsuya So; Shinji Kumamoto; Masayuki Nakahara; Takashi Tanoue; Akira Kusumegi; Takafumi Inoue; Koichi Ogawa; Hiroaki Manabe; Yasuyuki Miyoshi; Isao Date; Kenki Nishida
Infectious Spondylitis: Characteristics of Geriatric Patients and Significance of Surgery The goal of this study is to identify the characteristics and common problems of geriatric patients with infectious spondylitis and to explore possible solutions for them.
Acta Medica Okayama | 2013
Takao Yasuhara; Yuichi Takahashi; Shinji Kumamoto; Masayuki Nakahara; Kotaro Yoneda; Tatsuomi Niimura; Takashi Tanoue; Akira Kusumegi; Takashi Sennari; Yasukazu Hijikata; Hiroaki Manabe; Yasuyuki Miyoshi; Isao Date; Koichi Ogawa; Kenki Nishida
Spinal Surgery | 2018
Akira Kusumegi; Yuichi Takahashi; Yushi Sakamoto; Koichi Ogawa; Takao Yasuhara; Shinji Kumamoto; Isao Date; Kenki Nishida
Acta Medica Okayama | 2018
Michiari Umakoshi; Takao Yasuhara; Atsuhiko Toyoshima; Susumu Sasada; Akira Kusumegi; Jun Morimoto; Kyohei Kin; Yousuke Tomita; Isao Date
Japanese Journal of Neurosurgery | 2016
Kenki Nishida; Akira Kusumegi; Yushi Sakamoto
Acta Medica Okayama | 2016
Takao Yasuhara; Ken Kuwahara; Susumu Sasada; Atsuhiko Toyoshima; Jun Morimoto; Kyohei Kin; Hiroaki Manabe; Yasuyuki Miyoshi; Akira Kusumegi; Yuichi Takahashi; Kiyoshi Ito; Isao Date
Spinal Surgery | 2014
Takafumi Inoue; Masayuki Nakahara; Yuichi Takahashi; Yasukazu Hijikata; Akira Kusumegi; Takashi Tanoue; Shinji Kumamoto; Koichi Ogawa; Kenki Nishida
Spinal Surgery | 2014
Takafumi Inoue; Masayuki Nakahara; Yuichi Takahashi; Yasukazu Hijikata; Akira Kusumegi; Takashi Tanoue; Shinji Kumamoto; Koichi Ogawa; Kenki Nishida
Spinal Surgery | 2014
Yasukazu Hijikata; Yuichi Takahashi; Takao Yasuhara; Akira Kusumegi; Takashi Tanoue; Takafumi Inoue; Masayuki Nakahara; Shinji Kumamoto; Koichi Ogawa; Kenki Nishida