Publications by authors named "Shuhei Ohyama"

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Enhancing segmentation accuracy of the common iliac vein in OLIF51 surgery in intraoperative endoscopic video through gamma correction: a deep learning approach.
Kaori Yamamoto, Reoto Ueda, Kazuhide Inage, Yawara Eguchi, Miyako Narita, Shuhei Ohyama

Int J Comput Assist Radiol Surg· December 2025

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Optimizing S1 nerve root block using three-dimensional computed tomography imaging: Identifying the ideal fluoroscopic angle and predicting S1 neural foramen position.
Noritaka Suzuki, Toshiaki Kotani, Shuhei Ohyama, Kotaro Sakashita, Shun Okuwaki

J Orthop Sci· November 2025

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Evaluation of trunk muscles in lumbar degenerative disease using magnetic resonance imaging T2 mapping: Association with computed tomography parameters and body composition.
Noritaka Suzuki, Yawara Eguchi, Shuhei Iwata, Sumihisa Orita, Kazuhide Inage, Shuhei Ohyama

J Orthop Sci· October 2025

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Machine learning algorithms for predicting future curve using first and second visit data in female adolescent idiopathic scoliosis patients.
Shuhei Ohyama, Satoshi Maki, Toshiaki Kotani, Yosuke Ogata, Tsuyoshi Sakuma

Eur Spine J· September 2025

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Skeletal Maturity, Brace Compliance, and In-Brace Correction Rate Are Important Factors Associated with Cobb Angle Progression after Brace Treatment in Patients with Adolescent Idiopathic Scoliosis.
Kotaro Sakashita, Tomoyuki Asada, Toshiaki Kotani, Tsuyoshi Sakuma, Yasushi Iijima, Shuhei Ohyama

Spine Surg Relat Res· September 2025

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Comparison of Three Evaluation Methods for the Lumbar Intervertebral Disc Vacuum Phenomenon in Predicting Postoperative Residual Lower Back Pain.
Shuhei Ohyama, Yasuchika Aoki, Masahiro Inoue, Yusuke Sato, Masashi Sato

Cureus· September 2025

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Timeline of curve progression around menarche in small adolescent idiopathic scoliosis curves without influence of braces: a single-center longitudinal cohort study of 1,090 patients.
Yosuke Ogata, Toshiaki Kotani, Tomoyuki Asada, Shuhei Ohyama, Shun Okuwaki

Spine J· August 2025

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Quantitative Assessment of Celiac and Superior Mesenteric Artery Diameters in Adult Spinal Deformity Surgery Using Three-dimensional Computed Tomography.
Yasushi Iijima, Toshiaki Kotani, Tsuyoshi Sakuma, Tsutomu Akazawa, Shunji Kishida, Shuhei Ohyama

Spine Surg Relat Res· July 2025

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Comparison of the O-arm-based navigation system with conventional fluoroscopy for percutaneous screw fixation in patients with fragility fractures of the pelvis.
Masaya Mizutani, Toshiaki Kotani, Ryo Ogawa, Sei Yano, Shunji Kishida, Shuhei Ohyama

Eur J Trauma Emerg Surg· June 2025

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Factors influencing the achievement of early surgery in proximal femoral fractures under a Japanese incentive policy.
Yutoku Yamada, Toshiaki Kotani, Shunji Kishida, Yosuke Ogata, Shun Okuwaki, Shuhei Ohyama

J Orthop Sci· May 2025

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Predictive Factors for Increased Bone Density Following Romosozumab Administration Based on Pre-Administration Blood Test Results.
Akira Kuwabara, Kazuhide Inage, Masaomi Yamashita, Sumihisa Orita, Yawara Eguchi, Shuhei Ohyama

Yonsei Med J· April 2025

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Risk factors for postoperative ileus after corrective spinal surgery: association with reduction in the retrocrural space area.
Shuhei Ohyama, Toshiaki Kotani, Tsuyoshi Sakuma, Yasushi Iijima, Yosuke Ogata

J Neurosurg Spine· February 2025

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Radiographic Predictors of Lateral Translation in Patients With Residual Adolescent Idiopathic Scoliosis and Thoracolumbar/Lumbar Curves: A Focus on L3 Lateral Translation.
Masaya Mizutani, Toshiaki Kotani, Yasuchika Aoki, Shuhei Iwata, Shun Okuwaki, Shuhei Ohyama

World Neurosurg· February 2025

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Quantitative assessment of lumbar dural mater pulsations using granger causality testing for spinal dynamics.
Ryohei Kasai, Kazuma Bando, Kazuhide Inage, Yawara Eguchi, Miyako Narita, Shuhei Ohyama

Sci Rep· February 2025

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Automatic generation of diffusion tensor imaging for the lumbar nerve using convolutional neural networks.
Rira Masumoto, Yawara Eguchi, Hidenari Takeuchi, Kazuhide Inage, Miyako Narita, Shuhei Ohyama

Magn Reson Imaging· December 2024

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Facet Joint Bridging in Adolescent-Onset Adult Idiopathic Scoliosis with Thoracolumbar/Lumbar Curves.
Shuhei Iwata, Toshiaki Kotani, Yasuchika Aoki, Tsuyoshi Sakuma, Yasushi Iijima, Shuhei Ohyama

World Neurosurg· October 2024

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The Analgesic and Side Effects of Tramadol Hydrochloride Immediate-Release and Extended-Release Tablets in Patients With Chronic Low Back Pain.
Kazuhide Inage, Takeshi Sainoh, Kohei Okuyama, Masaomi Yamashita, Shuhei Ohyama

Cureus· October 2024

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Reply to letter to the editor by Li et al.
Shuhei Ohyama, Yasuchika Aoki, Masahiro Inoue, Takayuki Nakajima, Yusuke Sato

J Orthop Sci· September 2024

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Bone union-promoting effect of romosozumab in an ovariectomized rat posterolateral lumbar fusion model.
Kohei Okuyama, Kazuhide Inage, Geundong Kim, Tomohito Mukaihata, Ikuko Tajiri, Shuhei Ohyama

J Orthop Res· August 2024

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A novel simultaneous three-dimensional volumetric morphological imaging and T2-mapping method, multi-interleaved X-prepared turbo-spin echo with intuitive relaxometry provides more accurate quantification of cervical spinal nerves.
Soichiro Tokeshi, Yawara Eguchi, Takayuki Sakai, Masami Yoneyama, Atsuya Watanabe, Shuhei Ohyama

J Clin Neurosci· July 2024

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Short-Term Clinical and Radiographic Evaluation of Patients Treated With Expandable and Static Interbody Spacers Following Lumbar Lateral Interbody Fusion.
Yawara Eguchi, Noritaka Suzuki, Sumihisa Orita, Kazuhide Inage, Miyako Narita, Shuhei Ohyama

World Neurosurg· May 2024

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Machine learning algorithms for predicting Cobb angle beyond 25 degrees in female adolescent idiopathic scoliosis patients.
Shuhei Ohyama, Satoshi Maki, Toshiaki Kotani, Yosuke Ogata, Tsuyoshi Sakuma

Spine (Phila Pa 1976)· March 2024

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Measurement of Postoperative Apical Vertebral Rotation Using Radiographic Images in Adolescent Idiopathic Scoliosis-Quantitative Evaluation Using Inverse Trigonometric Functions.
Shun Okuwaki, Toshiaki Kotani, Shuhei Ohyama, Shuhei Iwata, Tsuyoshi Sakuma

Spine Surg Relat Res· March 2024

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The Optimal Patient Position on the Surgical Table for Lateral Lumbar Interbody Fusion in Adult Spinal Deformity Using Three-Dimensional Computed Tomography: A Retrospective Study.
Yosuke Ogata, Toshiaki Kotani, Takahiro Sunami, Shun Okuwaki, Shuhei Ohyama

Spine Surg Relat Res· March 2024

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Association of Spinal Corrective Surgery With Abdominal Aorta Length in Patients With Adult Spinal Deformity.
Shuhei Ohyama, Toshiaki Kotani, Yasushi Iijima, Takahiro Sunami, Shun Okuwaki

Cureus· March 2024

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