TimothyCRykenMDMS, FACS, FAANS

PubMed

• Establishing a Gold Standard for Noninvasive Identification of Painful Lumbar Discs: Prospective Comparison of Magnetic Resonance Spectroscopy vs Low-Pressure Provocat...
  Gornet, M., Peacock, J., Schranck, F., Lotz, J., Ryken, T., Eastlack, R.> ;International Journal of Spine Surgery. 2024 Feb 27
• Examining barriers to implementing a surgical-site infection bundle.
  Kimberly C Dukes, Heather Schacht Reisinger, Marin Schweizer, Melissa A Ward, Laura Chapin, Timothy C Ryken, Trish M Perl, Loreen A Herwaldt> ;Infection Control and Hospital Epidemiology. 2023 Jul 26
• Association between interhospital transfer and increased in-hospital mortality in patients with spinal epidural abscesses.
  Maria K Pomponio, Imad S Khan, Linton T Evans, Nathan E Simmons, Perry A Ball, Timothy C Ryken, Jennifer Hong> ;The Spine Journal. 2022 Jun 1
• 1 citations
  Patients' experiences and compliance with preoperative screening and decolonization.
  Ethan Wilson, Alexandre R Marra, Melissa Ward, Laura Chapin, Stephanie Boulden, Timothy C Ryken, Lynne C Jones, Loreen A Herwaldt> ;American Journal of Infection Control. 2023 Jan 1
• 16 citations
  Racial Disparities in Outcomes After Spine Surgery: A Systematic Review and Meta-Analysis
  Imad Saeed Khan, Elijah Huang, Walker Maeder-York, Renata W. Yen, Nathan E. Simmons, Perry A. Ball, Timothy C. Ryken> ;World Neurosurgery. 2021 Oct 8
• Improving the Usability of 5-Aminolevulinic Acid Fluorescence-Guided Surgery by Adding an Optimized Secondary Light Source
  Jonathan T. Elliott, Dennis J. Wirth, Scott C. Davis, Jonathan D. Olson, Nathan E. Simmons, Timothy C. Ryken, Keith D. Paulsen, David W. Roberts> ;World Neurosurgery. 2021 May 1
• 6 citations
  The role of neuropathology in the management of newly diagnosed glioblastoma: a systematic review and evidence-based clinical practice guideline.
  José E. Velázquez Vega, Daniel J. Brat, Timothy C. Ryken, Jeffrey J. Olson> ;Journal of Neuro-Oncology. 2020 Nov 19
• 18 citations
  The role of imaging for the management of newly diagnosed glioblastoma in adults: a systematic review and evidence-based clinical practice guideline update
  Paige Lundy, Joseph S. Domino, Timothy C. Ryken, Sarah Jost Fouke, David J. McCracken, D. Ryan Ormond, Jeffrey J. Olson> ;Journal of Neuro-Oncology. 2020 Nov 19
• 3 citations
  Congress of neurological surgeons systematic review and evidence-based clinical practice parameter guidelines for the treatment of adults with newly diagnosed glioblas...
  Jeffrey J. Olson, Timothy C. Ryken> ;Journal of Neuro-Oncology. 2020 Nov 19
• 10 citations
  Cytoreductive surgery in the management of newly diagnosed glioblastoma in adults: a systematic review and evidence-based clinical practice guideline update
  Joseph S. Domino, D. Ryan Ormond, Isabelle M. Germano, Mairaj T. Sami, Timothy C. Ryken, Jeffrey J. Olson> ;Journal of Neuro-Oncology. 2020 Nov 19
• 15 citations
  The role of radiation therapy in treatment of adults with newly diagnosed glioblastoma multiforme: a systematic review and evidence-based clinical practice guideline u...
  Mateo Ziu, Betty Y.S. Kim, Wen Jiang, Timothy C. Ryken, Jeffrey J. Olson> ;Journal of Neuro-Oncology. 2020 Nov 19
• 4 citations
  Study Design in Neurosurgical Research: Considerations for Observational and Experimental Cohort Studies.
  Christopher Louie, Erin D’Agostino, Alexander Woods, Timothy C. Ryken> ;Neurosurgery. 2020 Jan 1
• 3 citations
  Determining an Appropriate Outcome Measure in Neurosurgical Research: Investigating Meaningful, Valid, and Practical Metrics
  Christopher Louie, Erin D’Agostino, David S. Han, Timothy C. Ryken> ;Cureus. 2019 Sep 9
• 35 citations
  Congress of Neurological Surgeons Systematic Review and Evidence-Based Guidelines for the Treatment of Adults With Metastatic Brain Tumors: Executive Summary
  Jeffrey J. Olson, Steven N. Kalkanis, Timothy C. Ryken> ;Neurosurgery. 2019 Mar 1
• 46 citations
  Congress of Neurological Surgeons Systematic Review and Evidence-Based Guidelines on the Role of Steroids in the Treatment of Adults With Metastatic Brain Tumors.
  Timothy C. Ryken, John S. Kuo, Roshan S. Prabhu, Jonathan H. Sherman, Steven N. Kalkanis, Jeffrey J. Olson> ;Neurosurgery. 2019 Mar 1
• 73 citations
  Congress of Neurological Surgeons Systematic Review and Evidence-Based Guidelines on the Role of Surgery in the Management of Adults With Metastatic Brain Tumors.
  Brian V. Nahed, Christopher Alvarez-Breckenridge, Priscilla K. Brastianos, Helen A. Shih, Andrew E. Sloan, Mario Ammirati, John S. Kuo, Timothy C. Ryken, Steven N. Kal...> ;Neurosurgery. 2019 Mar 1
• 30 citations
  Congress of Neurological Surgeons Systematic Review and Evidence-Based Guidelines on the Role of Chemotherapy in the Management of Adults With Newly Diagnosed Metastat...
  Jonathan H. Sherman, Simon S. Lo, Thomas Harrod, Alia Hdeib, Yiping Li, Timothy C. Ryken, Jeffrey J. Olson> ;Neurosurgery. 2019 Mar 1
• 9 citations
  Rationale and design of the 500-patient, 3-year, and prospective Vigilant ObservatIon of GlIadeL WAfer ImplaNT registry.
  Kevin O. Lillehei, Steven N. Kalkanis, Linda M. Liau, Dellann Elliott Mydland, Jeffrey J. Olson, Nina Paleologos, Timothy C. Ryken, Tania Johnson, Evan Scullin> ;CNS Oncology. 2018 Apr 1
• 23 citations
  Congress of Neurological Surgeons Systematic Review and Evidence-Based Guidelines on the Treatment of Adults With Vestibular Schwannomas: Executive Summary.
  Jeffrey J. Olson, Steven N. Kalkanis, Timothy C. Ryken> ;Neurosurgery. 2018 Feb 1
• 19 citations
  CD271+ cells are diagnostic and prognostic and exhibit elevated MAPK activity in SHH medulloblastoma
  Lisa Liang, Ludivine Coudière-Morrison, Nazanin Tatari, Margaret Stromecki, Agnes Fresnoza, Christopher J. Porter, Marc R. Del Bigio, Cynthia Hawkins, Jennifer A. Chan...> ;Cancer Research. 2018 Jan 1
• 20 citations
  Preoperative Depression, Smoking, and Employment Status are Significant Factors in Patient Satisfaction After Lumbar Spine Surgery.
  Laura Chapin, Kelly Ward, Timothy Ryken> ;Clinical Spine Surgery. 2017 Jul 1
• 27 citations
  Blocking epithelial-to-mesenchymal transition in glioblastoma with a sextet of repurposed drugs: the EIS regimen
  Richard E. Kast, Nicolas Skuli, Georg Karpel-Massler, Guido Frosina, Timothy C. Ryken, Marc Eric Halatsch> ;Oncotarget. 2017 Jun 2
• 4 citations
  Pharmacological inhibition of the protein kinase MRK/ZAK radiosensitizes medulloblastoma
  Daniel Markowitz, Caitlin Powell, Nhan L. Tran, Michael E. Berens, Timothy C. Ryken, Magimairajan Issai Vanan, Lisa Rosen, Mingzhu He, Shan Sun, Marc Symons, Yousef Al...> ;Molecular Cancer Therapeutics. 2016 Jan 1
• 55 citations
  The role of radiotherapy in the management of patients with diffuse low grade glioma: A systematic review and evidence-based clinical practice guideline.
  Timothy C Ryken, Ian Parney, John Buatti, Steven N Kalkanis, Jeffrey J Olson> ;Journal of Neuro-Oncology. 2015 Dec 1
• 63 citations
  The role of neuropathology in the management of patients with diffuse low grade glioma: A systematic review and evidence-based clinical practice guideline.
  Daniel P Cahill, Andrew E Sloan, Brian V Nahed, Kenneth D Aldape, David N Louis, Timothy C Ryken, Steven N Kalkanis, Jeffrey J Olson> ;Journal of Neuro-Oncology. 2015 Dec 1
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Journal Articles

• CD271+ Cells Are Diagnostic and Prognostic and Exhibit Elevated MAPK Activity in SHH Medulloblastoma  
  Timothy Ryken, MD, Clinical Cancer Research
• Clinical prognostic indicators of surgical outcome in cervical spondylotic myelopathy.  
  Holly LT, Matz PG, Anderson PA, Groff MW, Heary RF, Kaiser MG, Mummaneni PV, Ryken TC, Choudhri TF, Vresilovic EJ, Resnick DK, J Neurosurg Spine. 2009 Aug;11(2):112-8. PubMed PMID: 19769490
• The natural history of cervical spondylotic myelopathy.  
  Matz PG, Anderson PA, Holly LT, Groff MW, Heary RF, Kaiser MG, Mummaneni PV, Ryken TC, Choudhri TF, Vresilovic EJ, Resnick DK, J Neurosurg Spine. 2009 Aug;11(2):104-11. PubMed PMID:19769489
• DNA methyltransferase-mediated transcriptional silencing in malignant glioma: a combined whole-genome microarray and promoter array analysis.  
  Foltz G, Yoon JG, Lee H, Ryken TC, Sibenaller Z, Ehrich M, Hood L, Madan A, Oncogene. 2009 Jul 23;28(29):2667-77. Epub 2009 May 25. PubMed PMID: 19465937
• Sample type bias in the analysis of cancer genomes.  
  Solomon DA, Kim JS, Ressom HW, Sibenaller Z, Ryken T, Jean W, Bigner D, Yan H, Waldman T, Cancer Res.2009 Jul 15;69(14):5630-3. Epub 2009 Jun 30. PubMed PMID: 19567670
• An assessment of the reliability of the Enneking and Weinstein-Boriani-Biagini classifications for staging of primary spinal tumors by the Spine Oncology Study Group.  
  Chan P, Boriani S, Fourney DR, Biagini R, Dekutoski MB, Fehlings MG, Ryken TC, Gokaslan ZL, Vrionis FD, Harrop JS, Schmidt MH, Vialle LR, Gerszten PC, Rhines LD, Ondra..., Spine (Phila Pa 1976). 2009 Feb 15;34(4):384-91. PubMed PMID: 19214098
• Guidelines for the treatment of newly diagnosed glioblastoma.  
  Olson, J.J., Ryken T, J Neurooncol (2008) 89:255-258
• Haircutting and psychosis revisited.  
  Ryken TC, Merrell AN, Journal of Clinical Psychiatry 51(2):83
• Interaction of acidic fibroblast growth factor and transforming growth factor-beta in normal and transformed glia in vitro.  
  Ryken TC, Traynelis VC, Lim R, Journal of Neurosurgery 76(5):850-855
• Craniovertebral abnormalities in Down’s syndrome.  
  Menezes AH, Ryken TC, Pediatric Neurosurgery 18(1):24-33
• Interaction of acidic fibroblast growth factor and transforming growth factor-beta in cultured endothelium.  
  Ryken TC, Traynelis VC, Surgical Forum 43:535-537
• Comprehensive analysis of MGMT promoter methylation: correlation with MGMT expression and clinical response in GBM.  
  Shah N, Lin B, Sibenaller Z, Ryken T, Lee H, Yoon JG, Rostad S, Foltz G, PLoS One. 2011 Jan 7;6(1):e16146. PubMed PMID: 21249131; PubMed Central PMCID: PMC3017549
• Botulinum toxin in cervical immobilization.  
  Traynelis VC, Ryken TC, Rodnitzky RL, Menezes AH, Journal of Neurosurgery 77(5):808-809
• Infratentorial stereotactic biopsy: a review of eleven cases.  
  Ryken TC, Hitchon PW, Roach RM, Traynelis VC, Stereotactic and Functional Neurosurgery 59:111-114
• Investigation of lipid metabolism in normal glia using a fluorescent ceramide probe.  
  Ryken TC, Traynelis VC, Sandra A, Surgical Forum 44:562-564
• Intertbody versus Posterolateral fusions.  
  Ryken T, Traynelis VC, J Neurosurg Spine. 2011 Sep;15(3):292-4. Epub 2011 May 27. PubMed PMID: 21619403
• Morphological and ultrastructural analysis of C6 glioma in vitro.  
  Gerdes JS, Ryken TC, Traynelis VC, Surgical Forum 44:560-562
• MicroRNA-328 is associated with (non-small) cell lung cancer (NSCLC) brain metastasis and mediates NSCLC migration.  
  Arora S, Ranade AR, Tran NL, Nasser S, Sridhar S, Korn RL, Ross JT, Dhruv H, Foss KM, Sibenaller Z, Ryken T, Gotway MB, Kim S, Weiss GJ, Int J Cancer. 2011 Jan 20. doi: 10.1002/ijc.25939. Epub ahead of print PubMed PMID: 21448905; PubMed
• Non-rheumatoid cranial settling.  
  Ryken TC, Menezes AH, Spine 18(16):2525-2527
• Craniovertebral abnormalities in Down’s syndrome.  
  Menezes AH, Ryken TC, Pediatric Neurosurgery 19(4):224
• Enhancing diagnosis, prognosis, and therapeutic outcome prediction of gliomas using genomics.  
  Assem M, Sibenaller Z, Agarwal S, Al-Keilani MS, Alqudah MA, Ryken TC, OMICS. 2012 Mar;16(3):113-22. PubMed PMID: 22401657
• Cervicomedullary compression by separate atlantal lateral mass.  
  Ryken TC, Menezes AH, Pediatric Neurosurg 19(3):165-8
• Cervicomedullary compression in achondroplasia.  
  Ryken TC, Menezes AH, Journal of Neurosurgery 81:43-48
• Familial occurrence in subependymoma.  
  Ryken TC, Robinson R, VanGilder JC, Journal of Neurosurgery 80:1108-1111
• Subependymoma in siblings.  
  Ryken TC, Robinson R, VanGilder JC, Journal of Neurosurgery, 81(6):961-962
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Books/Book Chapters

• Neurosurgical Operative Atlas. Vol. 2 
  Chapter: Surgical management of anterior communicating artery aneurysms 
  Page 273 - 281Ryken TC, Loftus CMEditors: Wilkins R.Williams and Wilkins, Baltimore, MDEdition 4,
• Neurosurgical Operative Atlas. Vol 3 
  Chapter: Surgical Management of Cerebral Abscess 
  Page 449 - 457Ryken TC, Loftus CMEditors: Wilkins R.William and Wilkins, Baltimore, MDEdition 6,
• Intraoperative Monitoring Techniques in Neurosurgery. 
  Chapter: Intraoperative electrical and manometric monitoring techniques in lumbosacral surgery 
  Page 257 - 268Ryken TC, Menezes AHEditors: Loftus CM, Traynelis VC.McGraw-Hill, New York
• Pediatric Spine: Principles and Practice. Vol. 1 
  Chapter: Craniovertebral junction abnormalities in the pediatric spine 
  Page 307 - 321Menezes AH, Ryken TCEditors: Weinstein SL.Raven Press, New York
• Neurosurgical Emergencies (AANS Neurosurgical Topics). Vol. 1 
  Chapter: Acute bony decompression of the optic and facial nerves 
  Page 195 - 216Ryken TC, Traynelis VCEditors: Loftus CM.Williams and Wilkins, Baltimore, MD
• Spinal Instrumentation (AANS Neurosurgical Topics). Vol 2 
  Chapter: Instrumentation of the craniocervical region 
  Page 47 - 62Menezes AH, Ryken TCEditors: Benzel EC.Williams and Wilkins, Baltimore, MD
• Spinal Fusion and Stabilization. 
  Chapter: Anterior bicortical plate stabilization of the cervical spine 
  Page 170 - 175Traynelis VC, Ryken TCEditors: Hitchon PW, Rengachery S, Traynelis VC.Thieme Medical Publishers, New York
• Spinal Fusion and Stabilization. 
  Chapter: Biomechanics of the cervical spine 
  Page 38 - 50Goel VJ, Clausen JD, Ryken TC, Traynelis VCEditors: Hitchon PW, Rengachery S, Traynelis VC.Thieme Medical Publishers, New York
• Pediatric Neurosurgery. 
  Chapter: Abnormalities of the craniocervical junction 
  Page 139 - 158Menezes AH, Ryken TCEditors: Cheek WR.WB Saunders, PhiladelphiaEdition 3,
• Principles of Spinal Surgery. Vol 1. 
  Chapter: Abnormalities of the craniovertebral junction in Down’s syndrome 
  Page 395 - 409Ryken TC, Menezes AHEditors: Menezes AH, Sonntag VK.McGraw-Hill, New York
• Neurosurgical Complication of Pregnancy (AANS Neurosurgical Topics) 
  Chapter: Pseudotumor cerebri, hydrocephalus and ventriculoperitoneal shunts in pregnancy 
  Page 165 - 176Ryken TCEditors: Loftus CM.Williams and Wilkins, Baltimore, MD
• The Year Book of Neuroradiology. 
  Chapter: Cervicomedullary compression in achondroplasia 
  Ryken TC, Menezes AHEditors: Ross JS.Mosby, Chicago
• The Year Book of Diagnostic Radiology. 
  Chapter: Cervicomedullary compression in achondroplasia 
  Ryken TC, Menezes AHEditors: Young L.Mosby, Chicago
• Principles of Neurosurgery. 
  Chapter: Intraspinal hemorrhage from idiopathic or structural causes 
  Page 627 - 638Watts CW, Ryken TCEditors: Grossman R, Loftus C.Lippincott-Raven, Philadelphia
• Principles of Neurosurgery. 
  Chapter: Evaluation, management and surgical repair of cervical spinal column trauma 
  Page 183 - 196Traynelis VC, Ryken TCEditors: Grossman R, Loftus C.Lippincott-Raven, Philadelphia
• Infections of the Central Nervous System: Diagnosis and Management. 
  Chapter: Atypical bacterial infections: actinomycosis and nocardiosis 
  Soults CB, Ryken TCEditors: Osenbach R, Zeidman S.Lippincott-Raven, Philadelphia
• Pediatric Neurosurgery: Surgery of the Developing Nervous System 
  Chapter: Abnormalities of the craniocervical junction 
  Page 400 - 422Menezes AH, Ryken TC, Brockmeyer DLEditors: McLone DG.WB Saunders Company, Orlando, FloridaEdition 4,
• The Pediatric Spine: Principles and Practice. 
  Chapter: Craniovertebral junction abnormalities in the pediatric spine 
  Page 219 - 237Menezes AH, Ryken TCEditors: Weinstein SL.Lippincott Williams & Wilkins, Philadelphia
• Biomechanics of Bone Testing. 
  Chapter: Screw pullout testing 
  Ferrara L, Ryken TCEditors: An H.Springer-Verlag
• Biomechanics of Osteoporotic Bone. 
  Chapter: Osteoporosis in interbody Fusion 
  Ferrar L, Ryken TCEditors: An H.Springer-Verlag
• Textbook of Neuro-Oncology. 
  Chapter: Intracerebral Metastatic Colon Carcinoma 
  Page 443 - 450Ryken TC, Carlisle T, Buatti JEditors: Mitchel S. Berger and Michael D Prados.Elseview Saunders
• Cancer of the Central Nervous System. 
  Chapter: The Role of Fractionated Conformal Radiotherapy in the Treatment of Pituitary Tumors 
  Page 439 - 444Buatti JM, Meeks SL, Ryken TCEditors: Peter McL. Black and Jay S. Loeffler.Lipincott Williams and Wilkins, Philadelphia, PAEdition 2,
• Handbook of Clinical Neuropsychology. 
  Chapter: Intracranial Tumors 
  Anderson S, Ryken TCEditors: Morgan and Ricker.Swets & Zeitlinger
• Evidence Based Neurosurgery. 
  Chapter: Neuro-Oncology: The Role of Surgery in the Management of Malignant Glioma 
  Page 37 - 104Ryken TC, Frankel B, Bernstein MEditors: Stephen J Haines and Beverly C. Walters.Thieme
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Abstracts/Posters

• Fas upregulation results in increased survival of rats with intracranial malignant glioma.
  Frankel B, Longo S, Kyle M, Canute GW, Ryken TC, Society for Neuroscience Abstracts, Vol. 25:2086
• Three dimensional culture of genetically modified glioma cell lines.
  Ryken TC, Housden ES, Frankel BM, Watts C, Sofroniew MV, Traynelis VC, Congress of Neurological Surgeons 46th Annual Meeting, Montreal, Canada
• Fas ligand induced cytotoxicity in human malignant glioma.
  Lennarson PJ, Frankel B, Julien T, Ryken TC, NeuroOncology 2(4):262
• Temperature-sensitive donor cells for central nervous system grafting: growth characteristics and expression of large-T antigen.
  Ryken TC, Jat PS, Sofroniew MV, Annual Meeting of the American Association of Neurological Surgeons, Denver, CO
• Evidenced based review of re-operation in malignant glioma.
  Soults CB, Canute GW, Ryken TC, Congress of Neurological Surgeons 47th Annual Meeting, New Orleans, LA
• Anti-sense mediated inhibition of the bcl2 gene induces apoptosis in human malignant glioma.
  Julien T, Frankel B, Longo S, Kyle M, Shilletoe E, Ryken TC, Journal of NeuroOncology 45:259
• Monitoring of external anal sphincter function and intravascular pressure during lumbosacral exploration.
  Ryken TC, Brayton J, Menezes AH, 3rd Annual Meeting of the American Society of Neurophysiological Monitoring, Pittsburgh, PA
• Ultrasound Guidance for Spinal Radiosurgery.
  Ryken TC, Meeks SL, Haller JW, Bouchet L, Buatti JM, 16th International Congress & Exhibition. Paris France
• Interaction of acidic fibroblast growth factor and transforming growth factor-beta in cultured endothelium.
  Ryken TC, Traynelis VC, 78th Clinical Congress of the American College of Surgeons, New Orleans, LA
• Mitogenic effects of acidic fibroblast growth factor and transforming growth factor-beta on bovine and porcine endothelium in vitro.
  Ryken TC, Traynelis, VC, 22nd Annual Meeting of the Society for Neuroscience, Anaheim, CA
• Detection of Changes in Gene Expression In-vitro During Astrocytic Differentiation.
  Etame A, Sibenaller ZA, Ryken T, 34th Annual Medical Student Research Day, Iowa City IA
• Controlled intervertebral settling in multiple level ventral cervical fusion procedures with a dynamic stabilization implant.
  Benzel EC, Yuan HA, Weidner A, Jounston RA, Pinto AJP, Kuhlengel KR, Geisler FH, Harkey HL, Ryken TC, AANS/CNS Section on Disorders of the Spine and Peripheral Nerves 14th Annual Meeting, Rancho Mirage, CA
• Magnetic Resonance Imaging Enhanced Intraoperative Ultrasound and Image-Guided Resection of Metastatic Central Nervous System Tumors.
  Ryken T, Barua M, Haller J, American College of Surgeons 88th Annual Clinical Congress, San Francisco CA
• Interstitial brachytherapy versus cytoreductive surgery in recurrent malignant glioma.
  Ryken TC, Hitchon PW, VanGilder JC, Wen BC, Jani S, Annual Meeting of the Congress of Neurological Surgeons, Washington, DC
• Cortical Margining Capabilities of the Fins Composing The Doc Cervical System.
  Ferrara L, Jin B, Secor J, Inceoglu S, Ryken T, Benzel E, Cervical Spine Research Society Meeting, Miami Beach, FL
• Cervicomedullary compression in achondroplasia.
  Ryken TC, Menezes AH, 21st Annual Meeting of the Pediatric Section of the American Association of Neurological Surgeons, Vancouver, BC, Canada
• Automatic segmentation of neuroanatomy for treatment planning.
  Haller JW, Ryken TC, Buatti JM, Meeks SL, Annual Meeting of the American Society of Therapeutic Radiation Oncology, New Orleans, LA
• Intradural cervical lipoma.
  Ryken TC, Menezes AH, VanGilder JC, Loftus CM, Annual Meeting of the Joint Section on Disorders of the Spine and Peripheral Nerves of the AANS/CNS, Tucson, AZ
• Microarray Analysis of Multiple Cell Types in Human Brain Tumor Explants.
  Ryken TC, Sibenaller Z, American Association for Cancer Research Oncogenomics, Phoenix, AZ
• Cervical intraspinal neurenteric cysts.
  Ryken TC, Menezes AH, Annual Meeting of the Joint Section on Disorders of the Spine and Peripheral Nerves of the AANS/CNS, Tuscon, AZ
• Frameless Stereotactic Radiosurgery for Intracranial Metastases: A Less Invasive and Effective Alternative to Standard Framed-Based Approaches.
  Kamath R, Ryken T, Meeks S, Pennington E, Buatti J, ASTRO
• Posterior Cervical Decompression: Evidence Based Review.
  Ryken T, AANS/CNS Section on Disorders of the Spine and Peripheral Nerves. Saddlebrook Resort, Tampa
• Biomechanical analysis of anterior cervical plates.
  Traynelis VC, Clausen JD, Ryken TC, Roach RM, Goel VJ, Zheung Z, Seenivasan G, Kong WZ, Annual Meeting of the Joint Section on Disorders of the Spine and Peripheral Nerves of the AANS/CNS, Tucson, AZ
• Interaction of growth factors in cultured glia.
  Ryken TC, Traynelis VC, University of Iowa College of Medicine Research Day, Iowa City, IA
• Gene Expression Analysis of Malignant Glioma.
  Sibenaller ZA, Ryken TC, Digital Biology: The Emerging Paradigm Symposium, National Institutes of Health, Bethesda MD
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Lectures

• Implantable Chemotherapy. 
  Canadian Approval, Montreal, CA
• Biomechanics of subaxial posterior cervical stabilization. 
  Congress of Neurological Surgeons 46th Annual Meeting, Montreal, Canada
• Ten Year Experience with Implantable Local Therapy for Malignant Brain Tumors. 
  Glasgow, Scotland UK
• Secondary basilar invagination. 
  Annual Meeting of the American Association of Neurological Surgeons, Denver, CO
• Malignant Glioma: Progress or No Progress? 
  Memphis Regional Brain Tumor Center First Annual Tumor Scientific Mid-South Brain Symposium. Memphis
• Clinical considerations in the design of anterior cervical plating systems. 
  Congress of Neurological Surgeons 47th Annual Meeting, New Orleans, LA
• Management of odontoid fractures. 
  Congress of Neurological Surgeons 47th Annual meeting, New Orleans, LA
• Implantable Chemotherapy for Malignant Glioma: A Ten year Experience. 
  University of Minnesota, Minneapolis
• Prognostic Factors in Malignant Glial Tumor Translational Research. 
  University of California, Los Angeles
• Consultants Corner. 
  AANS/CNS Section on Disorders of the Spine and Peripheral Nerves 14th Annual Meeting, Rancho Mirage
• Multimodality Therapy for Primary Malignant Tumors. 
  Medical College of Virginia, Richmond, VA
• Rheumatologic disorders of the cervical spine: techniques for C1-2 fusion. 
  AANS/CNS Section on Disorders of the Spine and Peripheral Nerves 14th Annual Meeting, Rancho Mirage
• Local Therapies for Primary Brain Tumors. 
  University of Missouri. Columbia, Missouri
• Primary and Metastatic CNS Tumors. 
  University of Kansas Medical Center
• Primary Brain Tumors: Causation. 
  Congress of Neurological Surgeons, 53rd Annual Meeting, Denver Colorado
• Biomarkers and Prognosis in Primary Brain Tumors. 
  Montreal Neurological Institute, Montreal, CA
• Malignant Brain Tumor Treatment Strategies. 
  Multiple Locations, 2007
• Management of Primary Brain Tumors. 
  Louisiana State University
• Cervical spine and Neurosurgical Clearance. 
  37th Annual Iowa Head and Neck Cancer and Reconstructive Surgery Course
• Treatment Strategies in progressive recurrent malignant glioma. 
  8th Annual Conference German Cancer Society, Regensburg German
• Multimodal Therapy for Malignant Glioma. 
  The Society of British Neurosurgery
• Tumor Board and Conference. 
  Finley Hospital Dubuque
• Malignant Glioma: Evidence based review of management and update on local therapies. 
  Oregon Neurosurgical Society, Portland, Oregon
• Treatment of malignant glioma in the USA, including use of Gliadel and Temozolomide. 
  Healthcom/National Health Service Royal College of Surgeon. London UK
• Novel therapies in malignant glioma. 
  Stanford University, Palo Alto, CA
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