Publications by authors named "Jun Ueno"

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Impact of nutritional status in patients with metastatic spinal tumors who underwent palliative surgery.
Masahiro Iinuma, Tsutomu Akazawa, Yoshiaki Torii, Jun Ueno, Atsuhiro Yoshida

J Orthop Sci· July 2025

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Factors causing deviation of robot-assisted pedicle screw placement for adolescent idiopathic scoliosis: why does deviation still occur even with robotics?
Jun Ueno, Yoshiaki Torii, Masahiro Iinuma, Atsuhiro Yoshida, Ken Tomochika

Eur Spine J· July 2025

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Intervertebral Disc Degeneration in Long-Term Postoperative Patients with Adolescent Idiopathic Scoliosis: MRI Evaluation 34-51 Years after Surgery and its Changes during Middle and Older Age for an Average of 6.9 Years.
Tsutomu Akazawa, Toshiaki Kotani, Tsuyoshi Sakuma, Yasushi Iijima, Yoshiaki Torii, Jun Ueno

Spine Surg Relat Res· January 2025

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Safety of robotic-assisted screw placement for spine surgery: Experience from the initial 125 cases.
Tsutomu Akazawa, Yoshiaki Torii, Jun Ueno, Tasuku Umehara, Masahiro Iinuma

J Orthop Sci· July 2024

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Learning curves for robotic-assisted spine surgery: an analysis of the time taken for screw insertion, robot setting, registration, and fluoroscopy.
Tsutomu Akazawa, Yoshiaki Torii, Jun Ueno, Tasuku Umehara, Masahiro Iinuma

Eur J Orthop Surg Traumatol· January 2024

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Long-term changes in bone mineral density following adolescent idiopathic scoliosis surgery: a minimum 34-year follow-up.
Tsutomu Akazawa, Toshiaki Kotani, Tsuyoshi Sakuma, Yasushi Iijima, Yoshiaki Torii, Jun Ueno

Eur J Orthop Surg Traumatol· January 2024

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Utility of a Navigated High-Speed Drill in Robotic-Assisted Screw Placement for Spine Surgery.
Makoto Ito, Jun Ueno, Yoshiaki Torii, Masahiro Iinuma, Atsuhiro Yoshida

Cureus· January 2024

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Comparison of Radiographic and Patient-Reported Outcomes After Surgery in Adolescent Idiopathic Scoliosis Between Robotics and Navigation: An Analysis Using Propensity Score Matching.
Tsutomu Akazawa, Yoshiaki Torii, Jun Ueno, Masahiro Iinuma, Atsuhiro Yoshida

Cureus· November 2023

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Accuracy of robotic-assisted pedicle screw placement comparing junior surgeons with expert surgeons: Can junior surgeons place pedicle screws as accurately as expert surgeons?
Yoshiaki Torii, Jun Ueno, Masahiro Iinuma, Atsuhiro Yoshida, Hisateru Niki

J Orthop Sci· September 2023

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Robotics is useful for less-experienced surgeons in spinal deformity surgery.
Jun Ueno, Yoshiaki Torii, Tasuku Umehra, Masahiro Iinuma, Atsuhiro Yoshida

Eur J Orthop Surg Traumatol· July 2023

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Nutritional Status Is Associated With Survival Following Spinal Surgery in Patients With Metastatic Spinal Tumors.
Masahiro Iinuma, Tsutomu Akazawa, Yoshiaki Torii, Jun Ueno, Shingo Kuroya

Cureus· June 2023

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Health-Related Quality of Life of Patients With Adolescent Idiopathic Scoliosis at Least 40 Years After Surgery.
Tsutomu Akazawa, Toshiaki Kotani, Tsuyoshi Sakuma, Yasushi Iijima, Yoshiaki Torii, Jun Ueno

Spine (Phila Pa 1976)· April 2023

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Accuracy of computer-assisted pedicle screw placement for adolescent idiopathic scoliosis: a comparison between robotics and navigation.
Tsutomu Akazawa, Yoshiaki Torii, Jun Ueno, Tasuku Umehara, Masahiro Iinuma

Eur Spine J· February 2023

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Impact of the COVID-19 Pandemic on Middle-Aged and Older Patients With Adolescent Idiopathic Scoliosis Who Underwent Spinal Fusion: A Questionnaire-Based Survey.
Tsutomu Akazawa, Toshiaki Kotani, Tsuyoshi Sakuma, Yasushi Iijima, Yoshiaki Torii, Jun Ueno

Cureus· January 2023

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Accuracy and Screw Insertion Time of Robotic-Assisted Cortical Bone Trajectory Screw Placement for Posterior Lumbar Interbody Fusion: A Comparison of Early, Middle, and Late Phases.
Jun Ueno, Tsutomu Akazawa, Yoshiaki Torii, Tasuku Umehara, Masahiro Iinuma

Cureus· December 2022

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The Learning Curve of Robotic-Assisted Pedicle Screw Placements Using the Cumulative Sum Analysis: A Study of the First 50 Cases at a Single Center.
Yoshiaki Torii, Jun Ueno, Masahiro Iinuma, Atsuhiro Yoshida, Hisateru Niki

Spine Surg Relat Res· November 2022

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Diagnosis of Spinal Infection with Alpha-defensin Lateral Flow Test: A Preliminary Report.
Atsuhiro Yoshida, Tsutomu Akazawa, Yoshiaki Torii, Jun Ueno, Masahiro Iinuma

Spine Surg Relat Res· September 2022

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Screw Insertion Time, Fluoroscopy Time, and Operation Time for Robotic-Assisted Lumbar Pedicle Screw Placement Compared With Freehand Technique.
Yoshiaki Torii, Jun Ueno, Tasuku Umehara, Masahiro Iinuma, Atsuhiro Yoshida

Cureus· May 2022

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Increase in pancreatic enzymes following spinal alignment changes in the thoracolumbar junction: Potential for acute pancreatitis after kyphosis correction.
Masahiro Iinuma, Tsutomu Akazawa, Yoshiaki Torii, Jun Ueno, Tasuku Umehara

J Orthop Sci· July 2021

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Tranexamic Acid Reduces Total Blood Loss and the Amount of Stored Preoperative Autologous Blood Donation Needed for Adolescent Idiopathic Scoliosis Patients Undergoing Posterior Spinal Fusion.
Takahiro Hideshima, Tsutomu Akazawa, Masahiro Iinuma, Yoshiaki Torii, Jun Ueno

Cureus· June 2021

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Mobile Application for Scoliosis Screening Using a Standard 2D Digital Camera.
Tsutomu Akazawa, Yoshiaki Torii, Jun Ueno, Asako Saito, Hisateru Niki

Cureus· March 2021

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Anchor type at upper instrumented vertebra and postoperative shoulder imbalance in patients with Lenke type 1 adolescent idiopathic scoliosis.
Tsutomu Akazawa, Shingo Kuroya, Toshiaki Kotani, Tsuyoshi Sakuma, Keita Nakayama, Jun Ueno

Eur J Orthop Surg Traumatol· February 2021

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Pulmonary Function Improves in Patients with Adolescent Idiopathic Scoliosis who Undergo Posterior Spinal Fusion Regardless of Thoracoplasty: A Mid-Term Follow-Up.
Tsutomu Akazawa, Toshiaki Kotani, Tsuyoshi Sakuma, Keita Nakayama, Yasushi Iijima, Jun Ueno

Spine Surg Relat Res· August 2020

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Optimization of the Revised Tokuhashi Scoring System: New Prognostic Criteria for Metastatic Spinal Tumor in Surgical Cases.
Masahiro Iinuma, Tsutomu Akazawa, Yoshiaki Torii, Jun Ueno, Tasuku Umehara

Spine Surg Relat Res· August 2020

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MRI evaluation of dural sac enlargement by interspinous process spacers in patients with lumbar spinal stenosis: Does it play a role in the long term?
Tsutomu Akazawa, Toshiaki Kotani, Tsuyoshi Sakuma, Yoshiaki Torii, Masahiro Iinuma, Jun Ueno

J Orthop Sci· November 2019

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