Atlantoaxial rotatory fixation: Part 1--Biomechanics of normal rotation at the atlantoaxial joint in children

Neurosurgery
D Pang, Veetai Li

Abstract

Atlantoaxial rotatory fixation (AARF) remains a recondite entity loosely included under the panoply of cervical trauma. The difficulty in finding a precise definition and reliable diagnostic criteria for AARF has been chiefly because of a lack of normative biomechanical data for C1-C2 rotation. As Part 1 and foundation of a comprehensive undertaking to define the biomechanics, mechanism, diagnosis, classification, and management of AARF, the present study focuses on the dynamic behavior of C1 and C2 during normal voluntary head rotation in children. Twenty-one normal children 3 to 11.5 years old underwent computed tomographic examinations from the lower clivus to the base of C3 in various head positions during axial rotation. The angles made by C1, C2, and the occiput with the vertical 0 degrees were recorded, and from these, the separation angles between C1 and C2 (C1-C2 degrees) were calculated for each head position (represented by the C1 angle) studied. In 18 children, the range of rotation was between 90 and -90 degrees, i.e., with the head making a full 180-degree turn from one side to the other. In 3 children, the head was first turned from 0 to 90 degrees and then back from 90 to 0 degrees, making only a half turn. All ...Continue Reading

References

Nov 1, 1990·The British Journal of Radiology·J B Murray, M Ziervogel
Nov 1, 1989·British Journal of Plastic Surgery·P A EadieG E Edwards
Dec 1, 1989·Spine·T J Birney, E N Hanley
Sep 1, 1989·Journal of Pediatric Orthopedics·N KawabeO Tanaka
Sep 1, 1987·AJR. American Journal of Roentgenology·H M KowalskiJ H Wisoff
Nov 1, 1987·The Annals of Otology, Rhinology, and Laryngology·B C WilsonR C Haydon
Sep 1, 1983·The Laryngoscope·D M HoplaR M Bass
Jul 1, 1982·Journal of Neurosurgery·D Pang, J E Wilberger
Dec 1, 1996·South African Medical Journal = Suid-Afrikaanse Tydskrif Vir Geneeskunde·M Lukhele
Nov 1, 1952·Radiology·D K BAILEY
Jan 1, 1957·Acta Orthopaedica Scandinavica. Supplementum·S WERNE
Jan 1, 1907·Annals of Surgery·E M Corner

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Citations

Dec 21, 2006·Surgical and Radiologic Anatomy : SRA·Shaoyin DuanJianghe Kang
Mar 8, 2007·Surgical and Radiologic Anatomy : SRA·R Shane TubbsW Jerry Oakes
Nov 26, 2010·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Martin MortazaviNicholas Theodore
Feb 20, 2009·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Heiko KollerHerbert Resch
Feb 19, 2009·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Heiko KollerWolfgang Hitzl
Aug 9, 2011·Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology·Charles Raybaud
Mar 5, 2010·Neurosurgery·Dachling Pang
Mar 5, 2010·Neurosurgery·Michael D MartinDennis J Maiman
Dec 21, 2010·Journal of Neurosurgery. Spine·Atul Goel, Abhidha Shah
Feb 3, 2012·Journal of Neurosurgery. Pediatrics·Alexandra D BeierJames M Drake
Aug 3, 2011·Journal of Neurosurgery. Pediatrics·Matthew R FuscoCurtis J Rozzelle
Mar 13, 2012·Neurology India·Vijendra K Jain
Jan 7, 2014·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Atilla AkbayNejat Akalan
Jan 24, 2013·Emergency Radiology·Michael J HorowitzF A Mann
Nov 12, 2005·European Journal of Pediatrics·Heike PhilippiJuergen Spranger
Sep 19, 2015·AJNR. American Journal of Neuroradiology·A EranI Izbudak
Nov 29, 2011·World Neurosurgery·R Shane TubbsAaron A Cohen-Gadol
Dec 20, 2015·Journal of Neurosurgery. Pediatrics·Rinchen PhuntsokDouglas L Brockmeyer
Nov 10, 2007·Neurosurgery Clinics of North America·Paul KlimoDouglas Brockmeyer
May 24, 2015·The Journal of the American Academy of Orthopaedic Surgeons·Kevin M Neal, Ahmed S Mohamed
Jan 1, 2015·International Anesthesiology Clinics·Edward Libfeld
Nov 24, 2011·PM & R : the Journal of Injury, Function, and Rehabilitation·Steven JanselewitzJenny Hume
Sep 28, 2010·The Spine Journal : Official Journal of the North American Spine Society·S RajasekaranAjoy P Shetty
Oct 18, 2016·Pediatric Emergency Care·Merritt D KinonCarlos A Bagley
Nov 7, 2016·Insights Into Imaging·Curtis Edward Offiah, Emily Day
Feb 28, 2018·The Journal of Craniofacial Surgery·Ah-Reum AhnShin-Young Yim
Dec 1, 2017·World Journal of Orthopedics·David SpiegelJohn Dormans
Mar 22, 2018·The Journal of Craniofacial Surgery·Massimo GalliLuigi F Rodella
May 3, 2019·Irish Veterinary Journal·Ricardo FernandesColin J Driver
Jul 15, 2020·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Ciaran Scott HillDominic Nolan Paul Thompson
Mar 30, 2013·Neurosurgery·Curtis J RozzelleMark N Hadley
Oct 3, 2018·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Costanza ZattraPaolo Ferroli

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