Episode

062- Dr. Lindsay Gorrell Discusses Spinal Manipulation, the Vertebral Artery, Reporting of Adverse Events

Dr. Lindsay Gorrell and I discuss her research regarding spinal manipulation, the vertebral artery and reporting of adverse events. Lindsay Gorrell completed her clinical training in Chiropractic and a Master of Research (The effect of manual and instrument applied cervical spine manipulation on mechanical neck pain) at Macquarie University, Australia. She then completed a PhD (Musculoskeletal Biomechanical and Electromyographical Responses Associated with Spinal Manipulation) under the supervision of Drs Walter Herzog and Jay Triano at The University of Calgary, Canada. She is now working as an International Research Fellow at the Balgrist University Hospital, University of Zurich, Switzerland. Lindsay is also studying a Master of Science in Medical Education at The University of Oxford, England.

Lindsay’s research interests are centered on investigating: i) the delivery of spinal manipulation; ii) the physiological responses and clinical outcomes occurring in response to spinal manipulation; and iii) the safety of the manual therapy. This requires different experimental approaches depending on the research question of interest. Most recently, she has published on the relationship between the amount of strain experienced by the vertebral artery, the 3D movements of the head and neck and the forces applied by clinicians during cervical spine manipulation and physiological responses to cervical and upper thoracic spinal manipulation. Lindsay has maintained part-time clinical practice since graduation.  

View Dr. Gorrell’s researchgate page here.

Below are the research studies that we discuss in this episode.

1.The reporting of adverse events following spinal manipulation in randomized clinical trials-a systematic review.Gorrell LM, Engel RM, Brown B, Lystad RP.Spine J. 2016 Sep;16(9):1143-51. doi: 10.1016/j.spinee.2016.05.018. Epub 2016 May 27.PMID: 27241208 Review.
2.Differences in force-time parameters and electromyographic characteristics of two high-velocity, low-amplitude spinal manipulations following one another in quick succession.Gorrell LM, Conway PJ, Herzog W.Chiropr Man Therap. 2020 Dec 8;28(1):67. doi: 10.1186/s12998-020-00355-0.PMID: 33287851 Free PMC article.
3.Kinematics of the head and associated vertebral artery length changes during high-velocity, low-amplitude cervical spine manipulation.Gorrell LM, Kuntze G, Ronsky JL, Carter R, Symons B, Triano JJ, Herzog W.Chiropr Man Therap. 2022 Jun 1;30(1):28. doi: 10.1186/s12998-022-00438-0.PMID: 35650649 Free PMC article.
4.Vertebral arteries do not experience tensile force during manual cervical spine manipulation applied to human cadavers.Gorrell LM, Sawatsky A, Edwards WB, Herzog W.J Man Manip Ther. 2022 Nov 15:1-9. doi: 10.1080/10669817.2022.2148048. Online ahead of print.PMID: 36382347
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060- Dr. Brian Anderson Discusses Chiropractic, Treatment Escalation, Medical Services

Dr. Brian Anderson

Dr. Brian Anderson DC, MPH, MS, PhD is an Assistant Professor within the Palmer Center for Chiropractic Research (PCCR) at the Palmer College of Chiropractic, where his research is focused on evaluation of nonpharmacological spine care delivery in the US. His background includes 15 years of clinical experience as a licensed chiropractic physician in a variety of settings, including private practice, a hospital-based integrative medicine center, and a chiropractic academic teaching clinic. He has also been an educator for the past 15 years, teaching courses at the undergraduate, graduate, and post-graduate level. With a passion to better understand and contribute to conservative spine care research, he enrolled in a PhD program in Health Sciences in 2015 with a focus on Health Services Research. His dissertation was titled “A Secondary Analysis Of Insurance Claims Data To Determine The Association Between Provider Type And Treatment Escalation In Musculoskeletal Disorders”, which is a topic he continues to investigate currently. In this interview, we discuss his journey from chiropractor to researcher, and several of his publications.

After graduating with his PhD in 2019, he joined the faculty at the Palmer Center for Chiropractic Research, where he participated in a pilot clinical study as a treating clinician, developed relationships with several research collaborators, and made progress towards developing his own research program.

Dr. Anderson’s research has been presented at many academic conferences, for which he has received several best paper awards. He is currently a co-investigator and primary analyst on a R15 grant titled “Spinal Manipulative Therapy vs Prescription Drug Therapy for Care of Aged Medicare Beneficiaries with Neck Pain”. He was recently awarded a 2-year Loan Repayment Award through the National Center for Complementary & Integrative Health (NCCIH), and also participated in the Fall 2022 cohort of the US Bone & Joint Young Investigators Initiative.

View Dr. Anderson’s publications at researchgate.net.

Here are the articles we discuss in this episode:

1.Risk of Treatment Escalation in Recipients vs Nonrecipients of Spinal Manipulation for Musculoskeletal Cervical Spine Disorders: An Analysis of Insurance Claims.Anderson BR, McClellan WS, Long CR.J Manipulative Physiol Ther. 2021 Jun;44(5):372-377. doi: 10.1016/j.jmpt.2021.03.001. Epub 2021 Aug 6.PMID: 34366149
2.The Effect of Reduced Access to Chiropractic Care on Medical Service Use for Spine Conditions Among Older Adults.Davis M, Yakusheva O, Liu H, Anderson B, Bynum J.J Manipulative Physiol Ther. 2021 Jun;44(5):353-362. doi: 10.1016/j.jmpt.2021.05.002. Epub 2021 Aug 8.PMID: 34376317 Free PMC article.
3.The Relationship Between Healthcare Provider Availability and Conservative Versus Non-conservative Treatment for Back Pain Among Older Americans.Anderson BR, Yakusheva O, Liu H, Bynum JPW, Davis MA.J Gen Intern Med. 2022 Mar;37(4):992-994. doi: 10.1007/s11606-021-06889-0. Epub 2021 May 24.PMID: 34031853 No abstract available.
4.Three Patterns of Spinal Manipulative Therapy for Back Pain and Their Association With Imaging Studies, Injection Procedures, and Surgery: A Cohort Study of Insurance Claims.Anderson BR, McClellan SW.J Manipulative Physiol Ther. 2021 Nov-Dec;44(9):683-689. doi: 10.1016/j.jmpt.2022.03.010. Epub 2022 Jun 24.PMID: 35753873
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045- Dr. Martha Funabashi Discusses the Biomechanics and Safety of Spinal Manipulation

Martha Funabashi, is a PhD currently working as a clinical research scientist at CMCC. She is also a CARL fellow and the co-lead study coordinator of SafetyNET – an international and multidisciplinary research team to support patient safety among spinal manipulative therapy (SMT) providers. Martha has a Bachelor’s Degree in Physiotherapy and a Master’s Degree in Neuroscience from the University of Sao Paulo – Brazil. She completed her PhD in Rehabilitation Sciences at the University of Alberta under the supervision of Dr. Greg Kawchuk and her post-doctoral fellowship also at the University of Alberta with Dr. Sunita Vohra. Martha’s research interests and passion are on the SMT’s biomechanics, underlying mechanisms, force-time characterization and its safety aspects. Martha has 26 peer-reviewed scientific journal publications, over 40 conference presentations and is on the editorial boards for peer review journals, such as Chiropractic and Manual Therapies. Martha has won research prizes, including the New Investigator Award at the World Federation of Chiropractic Conference 2017 and works in collaboration with emerging and well-known researchers around the world.

Dr. Funabashi’s email is: [email protected]

See Dr. Funabashi’s publications at researchgate.net.

Here is a list of the articles Dr. Funabashi and I discussed on the podcast.

1. SafetyNET Community-based patient safety initiatives: development and application of a Patient Safety and Quality Improvement Survey.
  Funabashi M, Pohlman KA, Mior S, O’Beirne M, Westaway M, De Carvalho D, El-Bayoumi M, Haig B, Wade DJ, Thiel HW, Cassidy JD, Hurwitz E, Kawchuk GN, Vohra S.
  J Can Chiropr Assoc. 2018 Dec;62(3):130-142.
  PMID: 30662067 [PubMed] Free PMC Article
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2. Tissue loading created during spinal manipulation in comparison to loading created by passive spinal movements.
  Funabashi M, Kawchuk GN, Vette AH, Goldsmith P, Prasad N.
  Sci Rep. 2016 Dec 1;6:38107. doi: 10.1038/srep38107.
  PMID: 27905508 [PubMed – indexed for MEDLINE] Free PMC Article
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3. Does the application site of spinal manipulative therapy alter spinal tissues loading?
  Funabashi M, Nougarou F, Descarreaux M, Prasad N, Kawchuk GN.
  Spine J. 2018 Jun;18(6):1041-1052. doi: 10.1016/j.spinee.2018.01.008. Epub 2018 Jan 31.
  PMID: 29355792 [PubMed – indexed for MEDLINE]
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