Recognition of Cranio-Cervical Instability in the Complex Chiari ...

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Surg Neurol Int. 2010; 1: 30. Published online 2010 July 16. doi: 10.4103/2152-‐7806.66461. PMCID: PMC2940090 Copyright © 2010 Henderson FC. Deformative stress associated with an abnormal clivo-‐axial angle: A finite element analysis Fraser C. Henderson, William A. Wilson, 1 Stephen Mott, 2 Alexander Mark, 3 Kristi Schmidt, 4 Joel K. Berry, 5 Alexander Vaccaro, 6 and Edward Benzel 7 Doctors Community Hospital, Georgetown University Hospital, United States 1 Computational Biodynamics LLC.,Yale University, United States 2 Dartmouth-‐Hitchcock Medical Center, Georgetown University Hospital, United States 3 Bethesda MRI & CT, Georgetown University Hospital, United States 4 University of Alabama Medical Center, Georgetown University Hospital, United States 5 Kettering University, United States 6 Thomas Jefferson University Hospital, United States 7 Cleveland Clinic Foundation, United States
14 12 10 8 6 4 2 0 Chiari and cranio-vertebral instability Suboccipital craniectomy and O-C2 fusion n=12 12 9 8 7 6 5 4 3 2 1 0 10 2 11 11 1 1 0 0 0 0 0 Neurological Change 8 Able to work/ attend school Every patient surveyed said they would do the surgery again if they had the choice and said they would recommend it to a friend or family member. 1 1 Yes No Retired Soon Functional Change Quality of Life Pain Change 2 Improved Worsened No Change
Page 1 and 2: Fraser C. Henderson Sr MD, Chief ,
Page 3 and 4: § A significant number of patients
Page 5 and 6: ¡ Discuss How deformative stress a
Page 7 and 8: Kitihara, Neurol Med Chir (Tokyo)19
Page 11 and 12: ¡ Clumping and loss of neurofilame
Page 13 and 14: Mouse optic nerve stretched 2mm (ε
Page 15 and 16: Calcium influx after stretch injury
Page 17 and 18: ¡ Mechanical forces modulate gene
Page 19 and 20: ¡ Compressed arrays of O2 saturati
Page 21 and 22: Neurosurgery: May 2005 - Volume 56
Page 23 and 24: “Loss of the ability of the spine
Page 25 and 26: 130° ABNORMAL Angulation of the br
Page 27 and 28: 130° ABNORMAL • Chiari decompres
Page 29 and 30: ¡ List 1941 ¡ Van Gilder 1985 ¡
Page 31 and 32: ¡ A line drawn along the hard pala
Page 34 and 35: ¡ basio to C1 posterior arch over
Page 36 and 37: ¡ Of 400 normal subjects, none had
Page 38 and 39: flexion-‐extension is the only
Page 40 and 41: Harris measurement = 12mm Harris me
Page 42 and 43: Mechanical stresses ¡ modulate gen
Page 44 and 45: Neurological assessment Sensory mot
Page 46 and 47: ¡ Neurological compression and ins
Page 48 and 49: 100 90 80 70 60 50 40 30 20 10 0 AS
Page 52 and 53: ¡ Within the population diagnosed

Recognition of Cranio-Cervical Instability in the Complex Chiari ...

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