Koichi Sairyo

Response to Letter to the Editor Regarding “Risk Factors for Early 3-Month Postoperative Mortality in Metastatic Spinal Tumor Surgery: A JASA Multicenter Prospective Study”

Takaaki Uto, Satoshi Kato, Noriaki Yokogawa, Takaki Shimizu et autres

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Violet light induces apoptosis via the reactive oxygen species-mitochondrial signaling pathway in chordoma

Shunsuke Tamaki, Toshihiko Nishisho, Makoto Takeuchi, Shunichi Toki et autres

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Real-time phase-dependent occupational radiation exposure analysis in full-endoscopic spine surgery

Takayuki Kitahara, Takafumi Ohshima, Daiki Nakajima, Seiya Watanabe et autres

Full-endoscopic spine surgery performed under local anesthesia offers clinical advantages, particularly for elderly patients. However, its reliance on fluoroscopy raises concerns about occupational radiation exposure. Although several studies have evaluated cumulative radiation dose, real-time data identifying specific high-risk phases of surgery remain …

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Titre indisponible

Masahiro Kashima, Fumitake Tezuka, Naoyuki Yoshida, Takashi Chikawa et autres

Transforaminal full-endoscopic spine surgery (TF-FESS) is a minimally invasive surgical procedure for lumbar spinal disease; however, it is technically demanding in patients with foraminal stenosis because of anatomical problems. This procedure has unique surgery-related complications, such as exiting nerve root injury, causing …

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Surgical repair and functional rehabilitation of a rare L5 triple stress fracture in an elite athlete: A case report

Takafumi Ohshima, Junzo Fujitani, Ken Tomonari, Takayuki Kitahara et autres

Background Lumbar stress fractures involving the pars interarticularis, inferior articular process, and lamina are rare. This report describes such a “triple stress fracture” in an elite athlete that was managed with a comprehensive strategy. Case presentation A 20-year-old professional volleyball player presented …

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Electronic patient-reported outcome monitoring system for sarcoma patients undergoing drug treatment: a development and feasibility study

Shunichi Toki, Toshihiko Nishisho, Natsumi Yamashita, Kunihiko Numoto et autres

BACKGROUND: Symptom and quality of life monitoring using electronic patient-reported outcomes has been widely adopted for common cancers. However, there are few such systems and studies for rare cancers such as sarcomas in Japan. We herein report a development and feasibility study …

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Transforaminal Full-Endoscopic Lumbar Foraminotomy Under Local Anesthesia for Adjacent Segment Foraminal Stenosis After Lumbar Fusion: Clinical and Radiological Outcomes

Seiya Watanabe, Takayuki Kitahara, Takafumi Ohshima, Saori Soeda et autres

Background Adjacent segment disease after lumbar fusion is a notable clinical problem that may require revision surgery. However, the extension of fusion requires greater surgical invasiveness and results in reduced spinal mobility, particularly in elderly patients. Transforaminal full-endoscopic lumbar foraminotomy (TF-FELF) under …

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Utility of Computed Tomography-Guided Navigation for Full-Endoscopic Pars Crisscross Decompression: A Technical Note

Takafumi Ohshima, Naoto Ono, Takayuki Kitahara, Yuji Nagao et autres

BACKGROUND: Full-endoscopic decompression for L5 isthmic spondylolisthesis is technically demanding due to the intricate "pars crisscross" anatomy. The inherent visualization limitations of endoscopic surgery-specifically the lack of depth perception and a restricted field of view-can make anatomical orientation difficult, increasing the risk …

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Incidence of deep vein thrombosis following total hip arthroplasty using the anterolateral supine, direct lateral, and posterolateral approaches: a retrospective study

Yasuyuki Omichi, Tomohiro Goto, Yasuaki Tamaki, Gakuto Yoshida et autres

This study investigated the impact of surgical approach on the incidence of deep vein thrombosis (DVT) following total hip arthroplasty (THA). This retrospective single-center study investigated 1675 consecutive patients who underwent primary unilateral THA. Patients were divided according to the surgical approach …

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Significance of High-Intensity Zones in Lumbar Discs: A Correlation with Endoscopic Findings

Shutaro Fujimoto, Takafumi Ohshima, S Tamaki, Kosuke Sugiura et autres

Background and Study Aims: The high-intensity zone (HIZ) in a lumbar intervertebral disc on T2-weighted magnetic resonance images has been associated with discogenic low back pain. However, its clinical significance remains uncertain. Histological studies reveal inflammatory changes surrounding the HIZ, suggesting a …

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Regression of Lumbar Ossification of the Ligamentum Flavum after Indirect Decompression via Full-endoscopic Trans-Kambin's Triangle Lumbar Interbody Fusion: A 3-year Case Report

Van Tuan NGUYEN, Takayuki Kitahara, Yuji Nagao, Takafumi Ohshima et autres

Ossification of the ligamentum flavum is a pathological condition that can cause progressive myelopathy or severe radiculopathy. Standard surgical management involves direct decompression via posterior resection of the ossification. However, there is a substantial risk of complications, including dural tears and iatrogenic …

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Morphological Analysis of the Intervertebral Foramen and Feasibility of Transforaminal Full-Endoscopic Spine Surgery

Masahiro Kashima, Fumitake Tezuka, Naoyuki Yoshida, Takashi Chikawa et autres

Background: Transforaminal full-endoscopic spine surgery (TF-FESS) is a minimally invasive surgical procedure for lumbar spinal disease; however, it is technically demanding in patients with foraminal stenosis because of anatomical problems. This procedure has unique surgery-related complications, such as exiting nerve root injury, …

jp (code pays fourni par la source)