APSS - PSS Oral Presentations
Free Papers
BPC179
Free Paper (Best Paper Session)
Prediction of Revision Surgery After Balloon Kyphoplasty Based on a Novel Computed Tomography-Based Endplate Injury Classification for Osteoporotic Vertebral Fractures
Masayoshi Iwamae, MD, PhD1, Shinji Takahashi, MD, PhD1*, Yuta Sawada, MD, PhD1, Shoichiro Ohyama, MD, PhD2, Yoshifumi Takahashi, MD3, Hiroyuki Yasuda, MD, PhD4, Takamitsu Haku, MD5, Yusuke Hori, MD, PhD6, Akito Yabu, MD, PhD6, Masatoshi Hoshino, MD, PhD5, Masaki Terakawa, MD6, Ryo Sasaki, MD1 4, Hiroshi Kono, MD, PhD3, Tadao Tsujio, MD, PhD8, Sadahiko Konishi, MD, PhD4, Minori Kato, MD, PhD1, Hiromitsu Toyoda, MD, PhD1, Akinobu Suzuki, MD, PhD1, Koji Tamai, MD, PhD1, Yuki Okamura, MD1, Yuto Kobayashi, MD1, Masato Uematsu, MD1, Hiroshi Taniwaki, MD1, Yuki Kinoshita, MD1, Masashi Tsujino, MD1, Hiroaki Nakamura, MD, PhD1, Hidetomi Terai, MD, PhD1
1Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan 2Department of Orthopaedic Surgery, Nishinomiya Watanabe Hospital, Hyogo, Japan 3Department of Orthopaedic Surgery, Ishikiri Seiki Hospital, Osaka, Japan 4Department of Orthopaedic Surgery, Osaka General Hospital of West Japan Railway Company, Osaka, Japan 5Department of Orthopaedic Surgery, Saiseikai Nakatsu Hospital, Osaka, Japan 6Department of Orthopaedic Surgery, Osaka City General Hospital, Osaka, Japan 7Department of Orthopaedic Surgery, Osaka Rosai Hospital, Osaka, Japan 8Department of Orthopaedic Surgery, Shiraniwa Hospital, Nara, Japan
FPDY160
Free Paper (Deformity)
The Effect of Exoscopic Minimally Invasive Cervical Open-door Laminoplasty on Reducing Postoperative Axial Pain and Cervical Kyphotic Deformity
Kentaro Yamane1, Wataru Narita2, Shinichiro Takao1
1Department of Orthopaedic Surgery, Okayama Medical Center, Okayama, Japan, 2Spine Center, Kameoka Municipal Hospital, Kameoka, Japan
FPDY130
Free Paper (Deformity)
Domino assisted Dual Rod Cantilever Correction in Complex Rigid Triplanar Kyphoscoliosis Deformities – A Retrospective Study
Shanmuganathan, Rajasekaran, Shyam, M.S ortho, Ajoy Prasad Shetty, M.S ortho, Rishi M Kanna, M.S ortho, Sri Vijay Anand, M.S ortho
Ganga Medical Centre and Hospital
FPDY044
Free Paper (Deformity)
A Novel Surgical Strategy–Oriented Classification for Severe Dynamic Sagittal Imbalance
Yong-Chan Kim, Sung-Min Kim, In-seok Son,XiongJie Li, Young-Jik Lee, Maolin Jin
Department of Orthopaedic Surgery, Kyung Hee University Hospital, Gangdong, Kyung Hee University, Seoul, South Korea
FPDY174
Free Paper (Deformity)
Perioperative Outcome and Complications in Adolescent Idiopathic Scoliosis (AIS): Propensity Score Matching (PSM) Study Based on World Health Organization (WHO) Body Mass Index (BMI)
Chandren Josephine Rebecca, Chiu Chee Kidd, Chan Chris Yin Wei, Kwan Mun Keong
Department of Orthopaedic Surgery, National Orthopaedic Centre of Excellence for Research and Learning (NOCERAL), Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
FPDY199
Free Paper (Deformity)
Automated Upper Instrumented Vertebra Tilt Angle Measurement for Adolescent Idiopathic Scoliosis Using Deep Learning Pose Estimation
Tan Shun Herng, Lee Sin Ying, Saturveithan A/L Chandirasegaran, Chiu Chee Kidd, Chan Chris Yin Wei, Kwan Mun Keong
Department of Orthopaedic Surgery, National Orthopaedic Centre of Excellence for Research and Learning (NOCERAL), Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
FPDY093
Free Paper (Deformity)
[] Lateral interbody release technique improves the bone union at L5/S1 in posterior lumbar interbody fusion for adult spinal deformity surgery
Takahiro Kozaki1, Takuhei Kozaki1, Ryo Taiji2 · Hiroshi Hashizume1, Hiroshi Iwasaki1, Shunji Tsutsui1, ·Masanari Takami1, Yuyu Ishimoto1, Keiji Nagata1, Masatoshi Teraguchi1, Shizumasa Murata1, Ryuichiro Nakanishi1, Yuta Yamamoto1 and Hiroshi Yamada1
1Department of Orthopeadic Surgery, Wakayama Medical University, Wakayama, Japan 2Department of Orthopaedic Surgery, Wakayama Medical University Kihoku Hospital, Wakayama, Japan
FPDY133
Free Paper (Deformity)
Postoperative Coronal Imbalance Predicts Late Mechanical Failure and Revision Surgery After Adult Spinal Deformity Correction with Pelvic Fixation: A 5-Year Follow-Up Study in Elderly Patients
Tomohiro Yamada, Yu Yamato, Go Yoshida, Tomohiro Banno, Hideyuki Arima, Shin Oe, Hiroki Ushirozako, oichiro Ide, Yukihiro Matsuyama
Hamamatsu University School of Medicine
FPDY189
Free Paper (Deformity)
Automated Alpha Angle Calculation for Adolescent Idiopathic Scoliosis Surgery Planning Using Deep Learning Pose Model
Tan Shun Herng. Lee Sin Ying, Saturveithan A/L Chandirasegaran, Chiu Chee Kidd, Chan Chris Yin Wei, Kwan Mun Keong
Department of Orthopaedic Surgery, National Orthopaedic Centre of Excellence for Research and Learning (NOCERAL), Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
FPD257
Free Paper (Degenerative)
Aspirin Attenuates Neurological Decline in the Preclinical Cervical Spondylotic Myelopathy Model via Improving Cord Perfusion and Modulating Microglial Phenotype
Liangyu SHI, Changmeng ZHANG, Hyun Woo KIM, Graham Ka Hon SHEA
Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong
FPD106
Free Paper (Degenerative)
Preoperative Metabolite Ratio Predicts Postoperative Recovery in Cervical Myelopathy: A Prospective MRS-Based Study
Karthik Ramachandran1, Ajoy Prasad Shetty1, Pushpa Bhari Thippeswamy2, Shanmuganathan Rajasekaran1
1Department of Spine Surgery, Ganga Medical Centre and Hospital, Coimbatore, Tamil Nadu, India. 2Department of Radiology, Ganga Medical Centre and Hospital, Coimbatore, Tamil Nadu, India
FPD048
Free Paper (Degenerative)
The Over-Widening Phenomenon due to suboptimal Lordosis Distribution Index: As a Risk factor for Rod fracture after Anterior Column Realignment in Patients with Degenerative Sagittal Imbalance
Yong-Chan Kim, Sung-Min Kim, In-seok Son, Xiongjie Li, Young-Jik Lee, Maolin Jin
Department of Orthopaedic Surgery, Kyung Hee University Hospital at Gangdong, Kyung Hee University, Seoul, South Korea
FPD268
Free Paper (Degenerative)
Cervical Sagittal Alignment Changes Following Long-segment Lumbar Instrumenta-tion: a Longitudinal Follow-up Study
Yeh, Kuang-Ting1,2 Wen-Tien Wu1,2, Hao-Wen Chen1,2, Chia-Ming1,2, Tzai-Chiu Yu1,2, Ing-Ho Chen
1Hualien Tzu Chi Hospital, 2Buddhist Tzu Chi Medical Foundation, Taiwan
FPD129
Free Paper (Degenerative)
Feasibility of Intra-cage vs Extra-cage Application of Recombinant Human Bone Morphogenetic Protein-2 in Posterior Lumbar Interbody Fusion
Jae Jun Yang, Jun-Young Choi and Jin-Bok Lee
Department of Orthopedic Surgery, Dongguk University Ilsan Hospital, Goyang, Republic of Korea
FPD182
Free Paper (Degenerative)
Comparative Efficacy of Arthroscopy-assisted Unilateral Single-portal Lumbar Fusion (AUSS-TLIF) versus Uniportal Full-endoscopic Transforaminal Lumbar Interbody Fusion (Endo-TLIF) for Lumbar Spinal Stenosis with Segmental Instability: A Prospective Cohort Study
Jie Zhang
Chengdu 363 Hospital
FPD054
Free Paper (Degenerative)
Mid-term surgical outcomes of posterior lumbar interbody fusion for lumbar spondylolisthesis with diffuse idiopathic skeletal hyperostosis
Masahiro Ozaki, Takahito Iga, Satoshi Suzuki, Toshiki Okubo, Kazuki Takeda, Narihito Nagoshi, Morio Matsumoto, Masaya Nakamura, Kota Watanabe
Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan
FPD224
Free Paper (Degenerative)
Characterizing Proprioceptive Dysfunction as an Early Sensory Indicator of Mild Degenerative Cervical Myelopathy
Law Karlen Ka Pui1, LAU Kenney1, Ki Lee1, SHEA Graham Ka Hon1 , CHEUNG, Kenneth Man Chee1,2
1Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, 2Department of Orthopaedics and Traumatology, The University of Hong Kong – Shenzhen Hospital, Shenzhen, China
FPD203
Free Paper (Degenerative)
Utilizing a novel combinatorial Physical Performance Test-based clinical assessment tool to screen for radiologically severe Degenerative Cervical Myelopathy
*Karlen Ka Pui LAW, OT, MPhil1, Kenney Ki Lee LAU, BA, MSc, PhD, FRSPH1, Graham Ka Hon SHEA,
MBBS, PhD, FRCS (Ortho)1, Kenneth Man Chee CHEUNG, MBBS, EMBA, MD, FRCS, FHKCOS, FHKAM(Ortho)1, 2
1Department of Orthopaedics and Traumatology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China 2Department of Orthopaedics and Traumatology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
FPIT231
Free Paper (Infection + Trauma)
Preoperative Vertebral Hounsfield Unit Values Predict Correction Loss After Posterior Corrective Fixation for Thoracolumbar Burst Fractures
Yuki Takeuchi, Yoshinao Koike1,2 Miki Komatsu1, Hiroaki Sakai1, Satoko Matsumoto1, Fukada Shotaro1, Kota Suda1
1Orthopaedic Surgery, Hokkaido Spinal Cord Injury Center, Hokkaido, Japan 2Orthopaedic Surgery, Hokkaido University Hospital, Hokkaido, Japan yt1127shinshiro@gmail.com
FPIT060
Free Paper (Infection + Trauma)
Trends in Surgical Site Infections and Causative Pathogens After Spinal Surgery: A 15-Year Analysis of 10,432 Cases (2010–2024)
Takahito Iga, Takahito Iga, Kazuki, Takeda Masahiro Ozaki, Satoshi Suzuki, Narihito Nagoshi, Morio Mtsumoto, Masaya Nakamura, Kota Watanabe Department of Orthopedic Surgery, Keio University School of Medicine
FPIT059
Free Paper (Infection + Trauma)
Long-Term Cervical MRI Changes After Whiplash-Associated Disorders: Twenty-Year Findings and Expectations at Thirty Years
Kota Watanabe1, Kenshi Daimon2, Morio Matsumoto1, Masaya Nakamura1
1Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan 2Department of Orthopedic Surgery, JCHO Saitama Medical Center, Eijiro Okada / Setagaya Okada Orthopaedic Surgery Clinic
FPIT046
Free Paper (Infection + Trauma)
Predicting Surgical Indications and Outcomes in Ankylosing Spondylitis Patients with Thoracolumbar Fractures: A Classification-Based Approach
Yong-Chan Kim, Sung-Min Kim, In-seok Son, Xiongjie Li, Young-Jik Lee, Maolin Jin
Department of Orthopaedic Surgery, Kyung Hee University Hospital at Gangdong, Kyung Hee University, Seoul, South Korea
FPIT132
Free Paper (Infection + Trauma)
Instability matters more - A Paradigm Shift in Understanding Neurological Deficit in Spinal Tuberculosis
Rajasekaran Shanmuganathan, Hari Krishnan, M.S ortho, Gnanaprakash, M.S ortho, Sri Vijay Anand, M.S ortho, Ajoy Shetty, M.S Ortho, Rishi M Kanna, M.S ortho
Ganga Hospital
FPIT252
Free Paper (Infection + Trauma)
Investigation of bone union rate and associated factors after posterior fixation combined with vertebroplasty for osteoporotic thoracolumbar vertebral fractures
Ryo Sasaki, Shinji Takahashi, Hiroyuki Yasada, Hidetomi Terai
Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine
FPIT176
Free Paper (Infection + Trauma)
Artificial Intelligence-Driven Predictive Modelling for Tuberculous versus Non-Tuberculous Spondylodiscitis Using Magnetic Resonance Imaging: A Pilot Study
Ryan Jacob Santiago1, MD; Elmer C. Tagra II2; Weena Ross P. Dygico, MD; Jose Miguel Marco T. Lumawig, MD1
1Department of Orthopedics, The Medical City Ortigas; 2Department of Radiology, The Medical City Ortigas
FPIT082
Free Paper (Infection + Trauma)
Surgical Outcomes of Posterior-Only Surgery for Thoracolumbar Spinal Tuberculosis: A Five-Year Case Series of 83 Patients from A High-Burden Region
Phuc Nghia Diep, Hanh The Nguyen, Truc Vu Tam, Tuan Duc Ha
Hospital for Traumatology and Orthopaedics, Ho Chi Minh City
FPMNR223
Free Paper (MIS/Navigation/Robotics)
Robotic-Assisted vs Navigation-Guided vs Freehand Pedicle Screw Placement: A Systematic Review and Meta-Analysis of Accuracy, Complications, and Cost-Effectiveness
Rafell Tantyo*, I Gusti Lanang NA Artha Wiguna Specialist Study Program of Orthopaedics and Traumatology, Faculty of Medicine University Udayana/ RSUP Prof. dr. I.G.N.G. Ngoerah
FPMNR244
Free Paper (MIS/Navigation/Robotics)
Novel Technique of Assisted Uniportal Interlaminar Percutaneous Endoscopic Lumbar Discectomy to Increase Versatility for Discectomy: Technical Notes
Yudha Mathan Sakti, Tedjo Rukmoyo, Zikrina Lanodiyu, Deas Makalingga Emiri, Kadek Egadia Calisto
Department of Orthopaedics and Traumatology, Dr Sardjito General Hospital, Yogyakarta, Indonesia
FPMNR057
Free Paper (MIS/Navigation/Robotics)
Delayed Massive Spinal Subarachnoid Hemorrhage Following T12 Balloon Kyphoplasty: A Case Report and Literature
Rikako Kita, Koichi Tobayama, Akihiko Hiyama, Hiroyuki Kato, Masahiko Watanabe, Daisuke Sakai
Department of Orthopaedic Surgery, Tokai University School of Medicine
FPMNR173
Free Paper (MIS/Navigation/Robotics)
Microendoscopic Decompression for Thoracic Ligamentum Flavum Hematoma: A Rare Case Successfully Treated Using a Minimally Invasive Technique
Katsuhiko Ishibashi¹, Ryuichi Watanabe¹, Ryoji Tominaga¹, Yasushi Inomata¹, Kazuyoshi Yanagisawa¹, Kento Takebayashi¹², Hisashi Koga¹¹², Hirohiko Inanami¹²³, Hiroki Iwai¹²³
¹Iwai Orthopaedic Hospital, Tokyo, Japan ² Iwai FESS Clinic, Tokyo, Japan ³Inanami Spine and Joint Hospital, Tokyo, Japan
FPT066
Free Paper (Tumor)
Intratumoral Flow Void Diameter on Standard Magnetic Resonance Imaging: A Practical Marker of Vascularity in Metastatic Spinal Tumors
Yuji Ishino, Satoshi Kato, MD, PhD¹ Noriaki Yokogawa, MD, PhD¹ Takaki Shimizu, MD, PhD¹ Kazuhiro Nanpo, MD¹ Megumu Kawai, MD¹ Narimichi Takino, MD¹ Shin Nunotani, MD¹ Satoru Demura, MD, PhD¹
Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
FPT229
Free Paper (Tumor)
Sudden negative chronotropic change during TES for large undifferentiated pleomorphic sarcoma arising from T12 vertebra - a rare case report
Mamer Rosario1,2, Erika Paulina Stefani See1, Ma. Stephanie Balaoing2, Mariam Grace Delima2, Rommel Estillore1
1Department of Orthopaedics, East Avenue Medical Center, Quezon City, Philippines 2Department of Thoracic Surgery and Anesthesia, Lung Center of the Philippines, Quezon City, Philippines
FPT166
Free Paper (Tumor)
GLP-1 Receptor Agonists as a Potential Alternative Strategy to Reduce Spine-related Morbidities in Obese Population
Xuan-You Lin1, Chun-Yuan Chuang, MD2, Sung Huang Laurent Tsai, MD, MPH3,4,5,6, Kuang Yuan Goh, MD3,4, Jing-Yang Huang, PhD7,8, Chia-Wei Peng3, Wei-Bin Hsu, PhD³, James Cheng-Chung Wei, MD, PhD9,10,1 1*, Ming-Chen Hsieh, MD, PhD 12,13*, Meng- Huang Wu, MD, PhD2,4,14,*
¹School of Medicine, Taipei Medical University, Taipei, Taiwan ²Department of General Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan ³Department of Orthopedics, Taipei Medical University Hospital, 11031, Taipei, Taiwan
⁴Department of Orthopedics, School of Medicine, College of Medicine, Taipei Medical University, 11031, Taipei, Taiwan ⁵Department of Biomedical Engineering, National Taiwan University, Taipei, Taiwan ⁶Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan ⁷Institute of Medicine, College of medicine, Chung Shan Medical University, Taichung, Taiwan
⁸Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan ⁹Department of Allergy, Immunology & Rheumatology, Chung Shan Medical University Hospital, Taichung, Taiwan
¹⁰Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan ¹¹Department of Nursing, Chung Shan Medical University, Taichung, Taiwan ¹²Department of Internal Medicine, China Medical University Hsinchu Hospital, Hsinchu, Taiwan
¹³School of Medicine, China Medical University, Taichung, Taiwan ¹⁴APSS-AOSpine AP Frontier Technologies Research Study Group
Background: Spine-related morbidities are strongly influenced by obesity-related mechanical
FPT124
Free Paper (Tumor)
Is Shape Factor a Useful Prognostic Factor for Functional Outcome in Cervical Intradural Extramedullary Tumors?
Tomomasa Kuga, Kiyoshi Tarukado, Kazuya Yokota, Kazu Kobayakawa, Kenichi Kawaguchi, Yasuharu Nakashima
Department of Orthopaedic Surgery, Kyushu University Hospital, Fukuoka, Japan
FPT049
Free Paper (Tumor)
Clinical Characteristics and Surgical Outcomes of Intradural Spinal Metastases: A Comparative Analysis Between Intramedullary and Extramedullary Lesions
Toshiki Okubo, Narihito Nagoshi, Takahito Iga, Kazuki Takeda, Masahiro Ozaki, Satoshi Suzuki, Morio Matsumoto, Masaya Nakamura, Kota Watanabe Department of Orthopaedic Surgery, Keio University School of Medicine
FPT216
Free Paper (Tumor)
Development and Validation a deep learning-based algorithm for differentiating malignant vertebral metastasis from benign vertebral fracture on plain spine radiographs
Po-Hsin Chou, Shih-Tien Wang, Yu-Cheng Yao Division of Spine Surgery, Department of Orthopedic and Traumatology, Taipei, Taiwan/ School of Medicine, National Yang Ming Chia Tung University, Taipei, Taiwan