O1 Health care professionals recognize adolescent idiopathic scoliosis in earlier stage compared to untrained adults
Charlotte de Groot, Johan L. Heemskerk, Mark C. Altena, Diederik H. R. Kempen
OLVG, JointResearch, Amsterdam, The Netherlands
O2 What is relative anterior spinal overgrowth of the adolescent idiopathic scoliotic spine?
Rob C. Brink1, Tom P. C. Schlösser1, Marijn van Stralen2, Koen L. Vincken3, Moyo C. Kruyt1, Steve C. N. Hui4, Max A. Viergever3, Winnie C. W. Chu4, Jack C. Y. Cheng5, René M. Castelein1
1Department of Orthopaedic Surgery, University Medical Center Utrecht, Utrecht, The Netherlands; 2Imaging Division, University Medical Center Utrecht, Utrecht, The Netherlands; 3Image Sciences Institute, University Medical Center Utrecht, Utrecht, The Netherlands; 4Department of Imaging & Interventional Radiology, Prince of Wales Hospital, The Chinese University of Hong Kong; 5Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong
O3 Association of circulating YKL-40 levels and CHI3L1 gene variants with the risk of spinal deformity progression in adolescent idiopathic scoliosis
Dina Nada1,2, Cédric Julien1, Pierre H. Rompré3, Marie-Yvonne Akoume1, Kristen F. Gorman1,4 Mark E. Samuels5,6, Emile Levy5,7, Dawei Li8,9, Alain Moreau1,2,10,11
1Viscogliosi Laboratory in Molecular Genetics of Musculoskeletal Diseases, Sainte-Justine University Hospital, Research Center, Montreal, QC, Canada; 2Program of Biomedical Sciences, Faculty of Medicine, Université de Montréal, Montreal, QC, Canada; 3Faculty of Dentistry, Université de Montréal, Montreal, QC, Canada; 4Department of Biological Sciences, California State University, Chico, CA, USA; 5Sainte-Justine University Hospital Research Center, Montreal, QC, Canada; 6 Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, QC, Canada; 7Department of Nutrition, Faculty of Medicine, Université de Montréal, Montreal, QC, Canada; 8 Department of Microbiology and Molecular Genetics, University of Vermont, Burlington, VT, USA; 9 Department of Computer Science, Neuroscience, Behavior, and Health Initiative, University of Vermont, Burlington, VT, USA; 10Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montreal, QC, Canada; 11 Department of Stomatology, Faculty of Dentistry, Université de Montréal, Montreal, QC, Canada.
Correspondence: Alain Moreau (alain.moreau@recherche-ste-justine.qc.ca)
O4 POC5 and cilia anomalies in adolescent idiopathic scoliosis
Amani Hassan, Stefan Parent, Charlotte Zaouter, Molidperee Sirinard, Soraya Barchi, Isabelle Villemure, Pierre Drapeau, Shunmoogum Patten, Florina Moldovan
Research Center of CHU Sainte-Justine, Faculty of Dentistry Université de Montréal, École Polytechnique and INRS–Institut Armand-Frappier, Montreal, Canada
O5 Diurnal variation of body height in children with idiopathic scoliosis
Dariusz Czaprowski1, Marcin Tyrakowski2, Justyna Bloda1, Jakub Waś1, Anna Dembińska3, Tomasz Kotwicki4
1Department of Physiotherapy, Józef Rusiecki University College, Olsztyn, Poland; 2Department of Orthopedics, Pediatric Orthopedics and Traumatology, Centre of Postgraduate Medical Education, Otwock, Poland; 3Department of Rehabilitation, Voivodeship Rehabilitation Hospital for Children, Olsztynek, Poland; 4Department of Spine Disorders and Pediatric Orthopedics, University of Medical Sciences, Poznan, Poland
O6 Cervical vertebral maturation stage in adolescent idiopathic scoliosis: Is it an alternative option in determining peak height velocity?
Zezhang Zhu, Hongda Bao, Shibin Shu, Qi Gu, Yuancheng Zhang, Zhen Liu, Yong Qiu
Nanjing Drum Tower Hospital, Nanjing, 210008, China
O7 Serum bone metabolic markers in adolescent idiopathic scoliosis
Yu-Jia Wang1,2,3, Jia-Jun Zhang1,2,3, Ka-Yee Cheuk1,2,3, Carol Ka-Lo Cheng1,2,3, Tsz-Ping Lam1,2,3, Yong Qiu3,4, Jack Chun-Yiu Cheng1,2,3, Wayne Yuk-Wai Lee1,2,3
1Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, 999077, Hong Kong; 2SH Ho Scoliosis Research Laboratory, Faculty of Medicine, The Chinese University of Hong Kong, 999077, Hong Kong; 3Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, 999077, Hong Kong; 4Spine Surgery, Nanjing Drum Tower Hospital, Nanjing University, Nanjing, 210000, China
O8 Immediate tridimensional changes following anterior vertebral body growth modulation in adolescents with idiopathic scoliosis
Olivier Turcot1, Marjolaine Roy-Beaudry1, Isabelle Turgeon1, Christian Bellefleur2, Stefan Parent1,3
1CHU Sainte-Justine, Montréal, Québec, H3T 1C5, Canada; 2Polytechnique Montréal, Montréal, Québec, H3T 1J4, Canada; 3Université de Montréal, Montréal, Québec, H3T 1J4, Canada
O9 Numerical simulation to evaluate 3D correction of pediatric scoliosis over 2 years with Anterior Vertebral Body Growth Modulation fusionless device
Nikita Cobetto1,2, Stefan Parent2,3, Carl-Éric Aubin1,2,3,
1Department of Mechanical Engineering, Polytechnique Montréal, Montreal, Quebec, H3C 3A7 Canada; 2Research Center, Sainte-Justine University Hospital Center, Montreal, Quebec, H3T 1C5 Canada; 3Faculty of Medicine, Department of Surgery, Université de Montréal, Montréal, Quebec, H3C 3J7 Canada
O10 Sagittal pelvic morphology during human evolution: A perspective on different hominoidae
Tom P. C. Schlösser1, Michiel M. A. Janssen1, Tom Hogervorst2, Tomaž Vrtovec3, John de Vos4, F. Cumhur Öner1, René M. Castelein1
1Department of Orthopaedic Surgery, University Medical Center Utrecht, Utrecht, the Netherlands; 2Department of Orthopaedic Surgery, Haga Hospital, The Hague, the Netherlands; 3Faculty of Electrical Engineering, University of Ljubljana, Ljubljana, Slovenia; 4Naturalis Biodiversity Center, Leiden, the Netherlands
O11 A novel scoliosis instrumentation using special superelastic nickel-titanium shape memory alloy spinal rods can result in equivalent correction as conventional rods but with less stress at bone-implant interface: A biomechanical evaluation through simulations
Xiaoyu Wang1,2, Kelvin Yeung3, Jason Pui Yin Cheung3, Johnson Lau3, Weichen Qi3, Kenneth Man-Chee Cheung3, Carl-Eric Aubin1,2
1Department of Mechanical Engineering, Polytechnique Montreal, Montreal (Quebec), Canada; 2Sainte-Justine University Hospital Center, Montreal (Quebec), Canada; 3Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong SAR, China
Correspondence: Kenneth Man-Chee Cheung (cheungmc@hku.hk); Carl-Eric Aubin (carl-eric.aubin@polymtl.ca)
O12 Unique correlation pattern between bone qualities and handgrip strength in adolescent idiopathic scoliosis (AIS) girls
Ka-Yee Cheuk1,2,3, Vivian WY Hung1,4, Fiona WP Yu1,2,3,4, Lyn LN Wong1,2,3,4, Wayne YW Lee1,2,3, Jack CY Cheng1,2,3,4, Tsz-Ping Lam1,2,3,4
1Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong; 2SH Ho Scoliosis Research Laboratory, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong; 3Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong; 4Bone Quality and Health Centre, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong
O13 Does Walter Reed Visual Assessment Scale reflect actual scapular positional fault?
Gozde Yagci1, Elif Camci1, Yavuz Yakut2
1 Physiotherapy and Rehabilitation Department, Hacettepe University, Ankara, Turkey; 2 Physiotherapy and Rehabilitation Department, Hasan Kalyoncu University, Gaziantep, Turkey
O14 A pilot MR study of thoracic vertebral morphology in IS
Ayesha Maqsood, Sohaib Hashmi, Matthew Hartwell, John F. Sarwark4
Department of Surgery, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL, 60611, USA
Correnspondence: John F. Sarwark (jsarwark@luriechildrens.org)
O15 The impact of scapular dyskinesis on upper extremity functions in idiopathic scoliosis
Gozde Yagci1, Çiğdem Ayhan1, Yavuz Yakut2
1Physiotherapy and Rehabilitation Department, Hacettepe University, Ankara, Turkey; 2 Physiotherapy and Rehabilitation Department, Hasan Kalyoncu University, Gaziantep, Turkey
O16 Calcium and vitamin D for controlling curve progression in adolescent idiopathic scoliosis – further review with Finite Element Analysis (FEA) for a randomized double-blinded placebo-controlled trial
Tsz Ping Lam1, Benjamin Hon Kei Yip2, Fiona Wai Ping Yu1, Nelson Leung Sang Tang3, Kenneth Kin Wah To4, Kwong Man Lee5, Wayne YW Lee1, Bobby Kin Wah Ng1, Alec Lik Hang Hung1, Yong Qiu6, Jack Chun Yiu Cheng1
1SH Ho Scoliosis Research Laboratory, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China; 2 The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong SAR, China; 3 Department of Chemical Pathology and School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; 4 School of Pharmacy, The Chinese University of Hong Kong, Hong Kong SAR, China; 5 Lee Hysan Clinical Research Laboratories, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China; 6 Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, Spine Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
O17 Comparison of the change in isometic trunk rotation torque from morning to evening in adolescents with and without idiopathic scoliosis
Fatemeh Aslanzade, Eric Parent, Brian MacIntosh, Jalal Abodarda
University of Alberta, Edmonton, Canada
O18 Cheneau brace treatment: comparison of compliant versus non compliant patients
Krzysztof Korbel, Piotr Janusz, Malgorzata Kotwicka, Tomasz Kotwicki
Department of Spine Disorders and Pediatric Orthopedics, University of Medical Sciences, Poznan, Poland
O19 Outcome of Cheneau brace treatment for idiopathic scoliosis in adolescents
Krzysztof Korbel, Piotr Janusz, Paweł Główka, Tomasz Kotwicki
Department of Spine Disorders and Pediatric Orthopedics, Poznan University of Medical Sciences, Poznan, Poland
O20 Quality of Life of adult patients with idiopathic scoliosis with a curvature above 35 degrees
Anne C. Brandwijk, Johan L. Heemskerk, Mark C. Altena, Diederik H. R. Kempen
Orthopedic Surgery, OLVG Hospital, Amsterdam, 1091AC, Netherlands
Correspondence: Anne C. Brandwijk (a.c.brandwijk@olvg.nl)
O21 Sagittal spinal profile and pelvic parameters in adolescent idiopathic scoliosis before and after posterior spinal fusion: comparison with normal controls by EOS radiography
Kwong Hang Yeung1, Zongshan Hu1, Tsz Ping Lam2, Bobby Kin Wah Ng2, Jack Chun Yiu Cheng2, Winnie Chiu Wing Chu2
1Department of Imaging and Interventional Radiology, Faculty of Medicine, The Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong SAR; 2Department of Orthopaedics and Traumatology, Faculty of Medicine, The Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong SAR
O22 Comparison of spinal morphology in pre-operative adolescent idiopathic scoliosis patients who underwent simultaneous erect EOS and prone CT
Kwong Hang Yeung1, Steve Cheuk Ngai Hui1, Babak Hassan Beygi1, Tsz Ping Lam3, Bobby Kin Wah Ng2, Rob C. Brink4, Man Sang Wong3, Jack Chun Yiu Cheng2, Winnie Chiu Wing Chu2
1Department of Imaging and Interventional Radiology, Faculty of Medicine, The Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong SAR; 2Department of Orthopaedics and Traumatology, Faculty of Medicine, The Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong SAR; 3Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China; 4Department of Orthopaedic Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
O23 Reliability of the EOS 3D imaging system for adolescent idiopathic scoliosis patients status post-surgery
Adam Miller3, Kenoma Anighoro 1,3, Channing Tassone1,2,3, John Thometz1,2,3, Xue-Cheng Liu1,2,3
1Department of Orthopaedic Surgery, Medical College of Wisconsin, Milwaukee, WI, 53226, USA ; 2 Musculoskeletal Functional Assessment Center, Children’s Hospital of Wisconsin, Milwaukee, WI 53226, USA; 3 Medical College of Wisconsin, Milwaukee, WI, 53226, USA
Correspondence: Adam Miller; Xue-Cheng Liu
O24 Ultrasound for quantitative assessment of spinal deformity in adolescent idiopathic scoliosis using EOS radiography as gold standard: A study of 952 chinese patients
Yi-shun Wong1, Kelly Ka-lee Lai2, Yong-ping Zheng2, Lyn Lee-ning Wong1, Alec Lik-hang Hung1, Bobby Kin-wah Ng1, Benjamin Hon-kei Yip3, Yong Qiu4,5, Jack Chun-yiu Cheng1, 5, 6, Tsz-ping Lam1, 5, 6
1Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China; 2 Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong, China; 3 Division of Family Medicine and Primary Health Care, The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China; 4 Spine Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China; 5 Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, Hong Kong and Nanjing, China; 6 SH Ho Scoliosis Research Laboratory, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
O25 A novel approach to sagittal profiling of adolescent idiopathic scoliosis using 3D ultrasound
Tin-Yan Lee1, Jason Pui Yin Cheung2, Wei Wei Jiang1,3, Connie Lok Kan Cheng1, Kelly Ka-Lee Lai1, Haris Begovic1, Dino Samartzis2, Michael Kai Tsun To2, Yong-Ping Zheng1
1Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong, China; 2 Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong, SAR, China; 3 College of Computer Science and Technology, Zhejiang University of Technology, Hangzhou, China
Correspondence: Yong-Ping Zheng (ypzheng@ieee.org)
O26 Is cortical function associated with postural control altered in adolescents with idiopathic scoliosis?
Julie Lanthier1,2, Sarah Lippé2,3, Inga S Knoth2, Catherine Bluteau4, Martin Simoneau4,5, Carole Fortin1,2
1École de réadaptation, Faculté de médecine, Université de Montréal, Montreal, Quebec H3C 3J7, Canada; 2Centre de recherche, CHU Sainte-Justine, Montreal, Quebec H1T 1C5, Canada; 3Département de psychologie, Université de Montréal, Montreal, Quebec H3C 3J7, Canada; 4Département de kinésiologie, Faculté de médecine, Université Laval, Quebec, Quebec G1V 0A6, Canada; 5Centre interdisciplinaire de recherche en réadaptation et intégration sociale (CIRRIS), Quebec, Quebec, G1M 2S8 Canada
Correspondence: Carole Fortin (carole.fortin@umontreal.ca)
O27 Axial rotation pattern may define the sagittal alignment in adolescent idiopathic scoliosis patients: A case-control study
Hongda Bao, Shibin Shu, Qi Gu, Yuancheng Zhang, Zezhang Zhu, Zhen Liu, Yong Qiu
Nanjing Drum Tower Hospital, Nanjing, 210008, China
O28 Patterns of intervertebral axial rotations in children with idiopathic scoliosis
Xue-Cheng Liu1,2,4, John Thometz1,2,4, Channing Tassone1,2,4, Adam Thiessen1,4, Mahua Dasgupta3,4 Pippa Simpson3,4 , Aria Bagheri4
1Deparment of Orthopedic Surgery, Medical College of Wisconsin, Milwaukee, WI 53206, USA; 2Musculoskeletal Functional Assessment Center, Children’s Hospital of Wisconsin, Milwaukee, WI 53226, USA; 3Quantitative Health Sciences, Children’s Hospital of Wisconsin, Milwaukee, WI 53226, USA; 4Medical College of Wisconsin, Milwaukee, WI 53206, USA
Correspondence: Xue-Cheng Liu
O29 Toward a better understanding of sensorimotor function in adolescent idiopathic scoliosis
Jean-Philippe Pialasse1,2, Martin Simoneau3,4, Inga S Knoth2,5, Sarah Lippé2,5, Carole Fortin1,2
1École de réadaptation, Faculté de médecine, Université de Montréal, Montreal, Quebec H3C 3J7, Canada; 2Centre de recherche, Centre de réadaptation Marie Enfant, CHU Sainte-Justine, Montreal, Quebec H1T 1C9, Canada; 3Département de kinésiologie, Faculté de médecine, Université Laval, Quebec, Quebec G1V 0A6, Canada; 4Centre interdisciplinaire de recherche en réadaptation et intégration sociale (CIRRIS), Quebec, Quebec G1M 2S8, Canada; 5Département de psychologie, Université de Montréal, Montreal, Quebec H3C 3J7, Canada
Correspondence: Carole Fortin (carole.fortin@umontreal.ca)
O31 Does direct vertebral body derotation using multiple-level pedicle screws improve axial vertebral rotation? A pre- and post-operative analysis using biplanar radiography
Kenoma Anighoro1,3, Channing Tassone1.2.3, Adam Miller3, John Thometz1,2,3, Xue-Cheng Liu 1,2,3
1Deparment of Orthopedic Surgery, Medical College of Wisconsin, Milwaukee, WI 53206, USA; 2Musculoskeletal Functional Assessment Center, Children’s Hospital of Wisconsin, Milwaukee, WI 53226, USA; 3Medical College of Wisconsin, Milwaukee, WI 53206, USA
Correspondence: Kenoma Anighoro; Xue-Cheng Liu
O32 Relationship between vertebral fracture burden and sagittal balance assessed by structured light back surface topography
Jerzy Narloch1, Wojciech Glinkowski1,2,3
1Department of Orthopaedics and Traumatology of Locomotor System, Baby Jesus Clinical Hospital, Warsaw, 02-005, Poland; 2Center of Excellence “TeleOrto” for Telediagnostics and Treatment of Disorders and Injuries of the Locomotor System, Medical University of Warsaw, Warsaw, 02-097, Poland; 3Faculty of Health Sciences and Physical Education, Kazimierz Pulaski University of Technology and Humanities, Radom, 26-600, Poland
O33 Mapping vertebral levels during ultrasound assessment of spinal deformities in girls with adolescent idiopathic scoliosis (AIS) – construction of a reference table for clinical use
Isabel Tran1, Yi Shun Wong1, Lyn Lee Ning Wong1, Yongping Zheng2, Ka Lee Lai2, Wayne YW Lee1, Bobby Kin Wah Ng1, Alec Lik Hang Hung1, Jack Chun Yiu Cheng1, Tsz Ping Lam1
1 SH Ho Scoliosis Research Laboratory, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China; 2 Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, China
O34 Using ultrasound imaging method to determine spinal flexibility for children with AIS under observation or non-surgical treatment
Mahdieh Khodaei1, Doug Hill2, Rui Zheng2, Lawrence H Le1, Edmond Lou1,3
1Department of Radiology and Diagnostic Imaging, University of Alberta, Edmonton, Canada; 2Department of Surgery, University of Alberta, Edmonton, Canada; 3Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada
Correspondence: Mahdieh Khodaei; Edmond Lou
O35 Does intraoperative imaging decrease pedicle screw-related complications in surgical treatment of adolescent idiopathic scoliosis: A systematic review update and meta-analysis
Andrew Chan1, Eric Parent2, Jason Wong3, Karl Karvacan4, Cindy San5, Edmond Lou6
1Department of Biomedical Engineering, University of Alberta, Edmonton, Alberta, T6G 2V2, Canada; 2Department of Physical Therapy, University of Alberta, Edmonton, Alberta, T6G2G4, Canada; 3Department of Electrical Engineering, University of Alberta, Edmonton, Alberta, T6G1H9, Canada; 4Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, T6G2R7, Canada; 5Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia, V6T1Z3; 6Department of Electrical Engineering, University of Alberta, Edmonton, Alberta, T6G1H9, Canada
O36 Accuracy of 3D ultrasound-camera guidance for posterior spinal surgery for adolescent idiopathic scoliosis
Andrew Chan1, Eric Parent2, Edmond Lou3
1Department of Biomedical Engineering, University of Alberta, Edmonton, Alberta, T6G 2V2, Canada; 2Department of Physical Therapy, University of Alberta, Edmonton, Alberta, T6G2G4, Canada; 3Department of Electrical Engineering, University of Alberta, Edmonton, Alberta, T6G1H9, Canada
O37 Cervical extensor muscles atrophy in the patients with single level cervical spondylotic radiculopathy treated by fusion with posterior cervical cages placed bilaterally in the facet joints
Paweł Główka1,2, Piotr Janusz1, Tomasz Kotwicki1, Kris Siemionow2
1Department of Spine Disorders and Pediatric Orthopaedics, University of Medical Sciences, Poznan, Poland; 2Department of Orthopaedics, University of Illinois at Chicago, Chicago, IL, USA
O38 Minimally invasive sacroiliac arthrodesis: 1 and 2-year results highlighting compression, grafting, and stabilization
Scott A. Mitchell, William W. Cross III
Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
O39 Surgical treatment of early-onset scoliosis by controlling asymmetrical growth in neurocentral synchondrosis: A preliminary study in an immature animal model
Liang Xu
Spine Surgery, Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
O40 A new cyclic implant based on vertebral tethering for the treatment of adolescent idiopathic scoliosis: A feasibility demonstration
Viviane Lalande1,2, Isabelle Villemure1,2, Manuel Vonthron1,2, Stefan Parent2,3, Carl-Éric Aubin1,2,3
1Mechanical Engineering, Polytechnique Montréal, Montréal, QC H3T1J4, Canada; 2CHU Sainte-Justine, Montréal, QC H3T1C5, Canada; 3Université de Montréal, Montréal, QC H3T1J4, Canada
O41 Comparative analysis of navigated and “free-hand” transpedicular screw placement techniques in surgical treatment of children with idiopathic scoliosis
D. N. Kokushin, S. V. Vissarionov, S. M. Belyanchikov, V. V. Murashko, K. A. Kartavenko, N. O. Khusainov
Department of Spine pathology and Neurosurgery. Turner scientific research institute for pediatric orthopedics Ministry of health, Saint – Petersburg. Saint-Petersburg, 196603, Russia
Correspondence: N. O. Khusainov (nikitahusainov@gmail.com)
O42 Histomorphometric study of growth modulation of porcine vertebrae instrumented with a double epiphyseal implant
Alejandra Mejía Jaramillo, Carl-Eric Aubin, Irène London, Bahe Hachem, Stefan Parent, Isabelle Villemure
École Polytechnique de Montréal, Institute of Biomedical Engineering, Montréal, Canada
O43 First clinical results of a dynamic growth friendly technique based on a Spring Distraction System (SDS)
Sebastiaan P. J. Wijdicks, Justin V. C. Lemans, René M. Castelein, Moyo C. Kruyt
Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
Correspondence: Sebastiaan P. J. Wijdicks
P01 Position related discrepancy of trunk rotation measurements in idiopathic scoliosis
Justyna Bloda1, Jakub Waś2, Dariusz Czaprowski2, Mateusz Kozinoga3, Tomasz Kotwicki3
1Department of Physical Education, University of Physical Education, Warsaw, Poland; 2Department of Physiotherapy, Józef Rusiecki University College, Olsztyn, Poland; 3Department of Spine Disorders and Pediatric Orthopedics, University of Medical Sciences, Poznań, Poland
P02 Study of genetic variants potentially involved in adolescent idiopathic scoliosis
Hélène Mathieu1; Aurelia Spataru1; Vincent Cunin2; Sophie Ehresmann1; Norbert Ajeawung1; Justine Rousseau1; Mai Nguyen Thi Tuyet1; Virginie Saillour3; Soraya Barchi1; Julie Joncas1; Stefan Parent1; Philippe Campeau1; Florina Moldovan1
1Research Center CHU Sainte Justine and Université de Montréal, Montréal, Canada; 2Hôpital Femme Mère Enfant Hospices civils de Lyon, 69677 Bron cedex, France; 3Centre de génomique clinique pédiatrique intégré Génome Québec and CHU Sainte-Justine, Montréal, Canada
P03 Genetic variant of SOCS3 gene is functionally associated with lumbar adolescent idiopathic scoliosis
Jun Qiao1,3, Leilei Xu1,3, Bangping Qian1,3, Zezhang Zhu1,3, Jack Chun Yiu Cheng2,3,Yong Qiu1,3
1Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, China; 2Department of Orthopaedics and Traumatology, Chinese University of Hong Kong, Hong Kong, China; 3Joint Scoliosis Research Center of the Chinese University of Hong Kong & Nanjing University, Nanjing, China
P04 Arguments against a single genetic etiology of adolescent idiopathic scoliosis
Ayesha Maqsood, David K. Frome, John F. Sarwark
Department of Surgery, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL, 60611, USA
Correspondence: John F. Sarwark (jsarwark@luriechildrens.org)
P05 Vitamin D enhanced cellular responses of AIS patients derived primary osteoblasts and osteocytes to mechanical stimulation
Jiajun Zhang1,2, Yujia Wang1,2, Carol Cheng1,2, Tsz-ping Lam1,2, Bobby K. W. Ng1,2, Jack C. Y. Cheng1,2, Wayne Y. W. Lee1,2
1Department of Orthopaedics and Traumatology, SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Shatin, NT, Hong Kong; 2Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong.
Correspondence: Wayne Y. W. Lee (waynelee@ort.cuhk.edu.hk)
P06 Restrained differential growth: The initiating event of adolescent idiopathic scoliosis?
Tom Crijns, Agnita Stadhouder, Theodoor Smit
Department of Orthopedics, VUMC, 1081 HV, Amsterdam, The Netherlands
P07 Growth pattern of lower limbs is not altered in AIS patients: A full-body quantified analysis
Hongda Bao, Shibin Shu, Qi Gu, Yuancheng Zhang, Zezhang Zhu, Zhen Liu, Yong Qiu
Nanjing Drum Tower Hospital, Nanjing, 210008, China
P08 Relationship between abnormal sagittal global alignment and severity of vertebral fracture in patients with osteoporosis
Zongshan Hu, Gene C.W. Man, Sheung Wai Law, Anthony Kwok, Jack C.Y. Cheng
Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
Variables | VCF (n=37) | non-VCF (n=35) | p value |
---|---|---|---|
Age (yrs) | 71.8±9.3 | 69.3±9.8 | 0.34 |
BMI (kg/m2) | 23.3±3.7 | 24.2±3.8 | 0.12 |
Lumbar spine BMD (g/cm2) | 0.849±0.17 | 0.791±0.13 | 0.02 |
Femoral neck BMD (g/cm2) | 0.736±0.11 | 0.718±0.09 | 0.11 |
T1 pelvic angle (°) | 26.6±10.9 | 16.5±7.4 | <0.001 |
Global sagittal angle (°) | 25.7±6.4 | 18.2±6.9 | 0.001 |