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Treating LBP in Golfers: Beyond Basic Assessment
The drive to master the most efficient swing demands a tremendous amount from the lower back. Maintaining stability in a flexed posture, supporting torso rotation and repetitively supporting the golf swing all put the lower back in a vulnerable position.
Lower-Extremity Overuse Injuries: Primer on Causes and Corrections
From ankle sprains to stress fractures, shin splints to plantar fasciitis, the research is clear: These common overuse injuries of the lower extremities – among dozens of others – may be related to abnormal foot function in your patients.
Making Public Health a Chiropractic Priority
As highlighted in this edition's News in Brief, Rand Baird, DC, MPH, FICA, FICC, editor and occasional author of our long-running column, "Chiropractic in the American Public Health Association", was recognized by the organization recently for 40 years of membership.
Technology Meets Practice: Chiropractic Every Day
About a year ago, I had an interesting conversation with a DC who made house calls. When I asked why, she was quick to explain she learns much more about her patients when she sees them at home than she could ever observe in the office.
Exploring and Learning from the Gift of Life
I'm grateful to have had the opportunity to teach cadaver dissection classes and workshops with Stephen Cina at the New England School of Acupuncture over the past seven years, first through the Sports Medicine Acupuncture Program and later as a NESA elective course.
Melatonin: A Promising Natural Agent in the Prevention of ALS
A number of years ago, experimental studies suggested melatonin could block key steps in the development of Alzheimer's disease, primarily by acting as a brain antioxidant and inhibiting the build-up of beta-amyloid plaque in the brain.
The Integrative Medicine Puzzle: Putting the Pieces Together
The conversation is changing in the broader healthcare community with patients actually moving the discussion toward more integrative topics. Patients today want to know their options.
Data: The New Frontier in Health Care
Your practice is empowered with the data you need to improve patient health, run a more efficient (read: profitable) practice, get paid in timely fashion and help show the efficacy of chiropractic on the national stage in the midst of sweeping changes in health care!
Can Acupuncture Treat Knee Pain?
Recently, an article in the Journal of the American Medical Association concluded that, "neither laser nor needle acupuncture conferred benefit over sham for pain or function" among older chronic knee pain patients.
Colon Health and TCM
I still remember many years ago, the loud "Yuck" from my wife at the time when we were together watching the Chinese movie "Last Emperor."
ICD-10 Is Not Scary (and Not About Billing)
In my 13 years of consulting with doctors on billing and coding matters, ICD-10 has aroused the biggest combination of misguided fear and ignorance I can remember.
The Roots of TCM in Depression Treatment
In traditional Chinese medicine, there is historical precedent for the treatment of so-called "Shen" (Heart-Mind) disorder, or disorder/dysregulation of the spirit, which is also considered as distinct but not separate from the cognitive function of the brain.
News in Brief
Support of F4CP Continues With Latest Donations; Walter Reed Honors Dr. William Morgan; Recognizing 40 Years of Public-Health Activism; Allstate Decision Reversed.
Medicine as Metaphor
The practice of medicine is both an art and a science. We study and learn the system so that when the time comes to apply it, there is a greater possibility of successfully helping others.
Adding Microneedling to Your Clinic for Results and Profit
Microneedling has taken the beauty world by storm over the last 10 years. Under the names dermaroller, microneedling or skin needling you will see these treatments listed in the services of nearly every fashionable beauty salon and day spa in the country.
A War You Can Help Patients Win
The average American consumes approximately 60 percent of calories from sugar, flour and refined oils. A donut is a good example of a so-called "food" that represents these calorie sources.
Merger Creates New Model of Care
Two San Francisco powerhouses of holistic healing, the American College of Traditional Chinese Medicine (ACTCM) and California Institute of Integral Studies (CIIS), are merging. Together they are building a visionary approach to applied integral health.
Aetna Updates 97140 Policy
In a development the Association of New Jersey Chiropractors is calling "a resounding victory for chiropractors nationwide," Aetna Insurance Company has updated its national reimbursement policy regarding 97140 (manual therapy), reaching an agreement two years after the association filed a declaratory judgment suit in federal court against the insurer.
Online Marketing Basics: Google Ranking, Part 1
We all know there is so much opportunity with online marketing. And, let's face it, if you don't have a presence online with a website and social media, you are probably not where you want to be.
The Art of Creating a Healing Space
I always advise my graduates to examine their group practice or treatment rooms with fresh eyes after they leave my CE workshops. I tell them, "Ask yourselves - is your space qi filled, welcoming and healing? Or is it cold and clinical?"
Abdominal Acupuncture for Eye Healing: The Sacred Turtle and Ba Gua Map
Our ideas about western medicine have shifted in recent decades, while the public is asking more from health care providers.
The Source-Luo Point Combination, Part 3
Dr. Nguyen Nghi (NVN) was born in Vietnam and is one of the most important scholars, writers, teachers and practitioners of modern time. Many of his theories and applications are the source of modern teachers from Europe and the United States.
May, 2008, Vol. 08, Issue 05
The Controversy of Cranial Bone Movement
By Lisa Johnson Zee; guest author for John Upledger, DO, OMM
Editor's note: Dr. Upledger has asked guest author Lisa Johnson Zee to share her thoughts on cranial bone movement in this month's column.
In anatomy and physiology, I learned that cranial bones fuse in early adulthood or childhood.1 Gray's Anatomy supports the theory that the sutures grow together, creating a solid mass of bone called the calvarium. The fused skull functions as a helmet in which volume or pressure changes in blood, cerebrospinal fluid (CSF) or brain tissue cause corresponding pressure changes in other systems to prevent an increase of intracranial pressure.
However, there is a sizable body of literature that documents a small, rhythmic movement of the cranial bones. The bulk of these studies come from the cranial osteopathy medical field. The following is a synopsis of some of these studies.
Tettambel used force transducers to measure movement between the frontal bone and bilateral mastoid processes of the temporal bone in 30 subjects.2 She recorded three rhythms including the cardiac and respiratory rhythms. She hypothesized that the third pulse, which averaged eight cycles per minute, was the craniosacral rhythm.
Frymann studied the rhythmic changes in the circumference of the head using a U-shaped frame with a differential transducer.3 Changes in the diameter of the skull were measured by the displacement of metal rods. This study is unique because it measured movement in live human subjects. Frymann found a pulsating rhythm between six and eight cycles per minute separate from cardiac and respiratory rates. The amount of displacement was measured between 10 and 30 microns.
Another study by Adams, et al., looked at parietal bone mobility in cats.4 These researchers fastened strain gauges to feline parietal bones to measure movement when injections of artificial CSF were given. The bones moved significantly, varying from 17 to 70 microns. External lateral head compression caused a measurable widening of the sagittal suture with an inward rotation of the parietal bones.
Researchers at the University of Michigan College of Osteopathic Medicine have looked at cranial bone mobility in adult primates.5 Michael and Retzlaff used a direct screw attachment on the right parietal bone and measured movement with a pressure transducer. They also measured blood pressure, heart rate and respiration rate. The parietal bones moved spontaneously in two distinct rhythms, one corresponding to the respiration rate and a second, slower rate of five to seven cycles per minute.
These four studies indicate cranial bones may show a slow, steady, cyclical movement. A relatively new theory for Western medical science, it represents a dramatic shift. Bringing controversial ideas into the status quo of scientific thought is not easy, but the body of literature supporting cranial movement is growing. Although inconclusive, it deserves to be approached with an open mind.
In CranioSacral Therapy (CST), the rhythm of CSF can be palpated at all parts of the body due to the passive action of fascial connective tissue. The rhythm occurs in two distinct phases: flexion (outward movement) and extension (inward movement). In physical therapy terms, flexion is a decreasing measurement of degrees in the angle of the joint. The sphenobasilar joint is where the posterior sphenoid articulates with a ridge on the occipital bone.
When Dr. William Garner Sutherland, the "father of osteopathy," palpated the movement of these bones, he noticed this joint does indeed flex or reduce angle size on the inferior side. The flexion of this angle is accompanied by subtle outward movement in the body, which Sutherland called flexion. Therefore, in CST, the cranium, along with the rest of the body, is in flexion when it widens and in extension when it narrows.
Anatomy of Suture Closure
To discover more about cranial bone motion, let's examine the nature of cranial sutures. If the sutures remain flexible throughout adulthood, some degree of motion is possible when driven by pressure changes in the craniosacral system. If the tissues fuse and become immobile, rhythmic motion is unlikely.
Several studies have examined the nature of the cranial sutures. Retzlaff, et al.,used light and scanning microscopy to examine tissue samples of adult primate sutures.6 They found connective tissue, blood vessels and nerve fibers present in the sutural space. They described a five-layered pattern of fibers and cells containing collagenous bundles. Tissue was reported to be arranged in a wavy pattern. The researchers hypothesized the purpose of the tissue might be to control the elongation of the collagen bundles. They reported no evidence of fusion in the adult primate sutures.
In a separate study, Upledger and Retzlaff examined the sagittal suture in primate skulls.7 They found not only connective tissue, but also a vascular network and neuronal plexuses and receptors in sutural tissue. In one specimen, they were able to trace a single dendrite through the dural membrane into the brain, terminating in the third ventricle containing CSF. Further study of this neural tract may bring answers to how the homeostatic feedback mechanism in the brain's CSF hydraulic system functions.
In the 1920s, Todd and Lyon published two articles examining a timeline of sutural closure in the male human skull.8 These researchers hypothesized that cranial sutures fuse at some point in the human lifetime. They started with 427 specimens, but rejected 81 due to abnormal suture closure or "delayed union." Furthermore, some of the skulls were termed lapsed union, which meant failure of the suture to close due to a concentration of bone along the edge of the articulatory surface. For reasons unclear, they counted these skulls as fused, which biased results toward earlier suture closure. The data they found is as follows:
The authors concluded that the sutures tend to close along this timeline. However, there is a high degree of variability reported. This study also was conducted some 80 years ago. Standards of protocol in scientific research have changed.
Researchers have studied one suture in-depth using different human specimens. Kokich examined one suture in the facial area - the frontozygomatic suture.9 Of his 61 specimens, he found none demonstrated closure until after age 80, and some weren't completely fused even after age 90. He noted that bony interdigitations formed along the suture with advancing age, but did not affect the patency of sutural movement. Kokich, like Retzlaff and Upledger, found clear evidence of collagen fibers within the suture. He stated that frontozygomatic suture remains a functioning "articulation" until late in life.
A conclusive statement about whether and when sutural fusion occurs cannot be made from existing research.10 Clearly the subject remains open for debate. Having palpated the craniosacral rhythm with my own hands, I believe cranial sutures maintain flexibility that might best be called articulation. This flexibility allows the bones to move passively as they are driven by the craniosacral system.
Click here for previous articles by John Upledger, DO, OMM.
Lisa Johnson Zee is a clinical supervisor and instructor in the Communication Disorders and Sciences Program at Southern Illinois University Carbondale. She is certified in CranioSacral Therapy Techniques through The Upledger Institute. Her other interests include complementary and alternative medicine, traumatic brain injury and bilingual Spanish/English therapy.
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