resourcesABOUT MT AUTHOR GUIDELINES CLASSIFIEDS EDITORIAL CALENDAR MEDIA GUIDE MASSAGE MART SCHOOLS & EDUCATION FEEDBACK
The Acupuncture Channel System (Part 1)
The earliest Chinese reference to channels is in the Mawangdui Medical Manuscripts,1 which are dated to the Warring States period of the Zhou Dynasty (475 BC-221 AD). The text presents 11 channels. There are no acupuncture points listed in those channels.
An Opportunity & a Responsibility
Nearly 80 Americans die from an opioid-related overdose every day, and spine-related pain is one of the principle drivers of opioid use. This unfortunate situation creates both an opportunity and a responsibility.
Crow Like the Rooster
As we welcome in the Year of the Rooster, we look at some of its major characteristics: confidence and communication, which suits the image we have of the Rooster...strutting in the farmyard, crowing to the others that it's time to wake up.
Shoulder Rehab: Start With the Scapula
The scapula is an incredible display of elegance and movement within the biomechanics of human motion. It's evolved for mobility and stability in the scapulo-thoracic region, giving us the ability to do things that are uniquely human, such as throwing with accuracy.
Scar Reduction With Acupuncture & Microneedling (Part 2)
Protocols & treatment Timing
Flirting With Alternative Therapies
There are about as many adjunct therapies being marketed to acupuncturists as there are acupuncturists. While some may remain purist in their application of traditional Chinese medicine, others choose to explore new horizons of treatment.
Five Branches University Has First Hospital TCM Residency
Established in 1984, Five Branches University (FBU) has campuses in Santa Cruz and San Jose, Calif., which serve the communities of Santa Cruz, the Monterey Bay, and Silicon Valley.
An Education in Gluten Sensitivity
A relatively new syndrome officially documented as non-celiac gluten sensitivity (NCGS) or gluten sensitivity (GS) was officially recognized and published in the new list of gluten-related disorders in 2012.
Nutrition for Menopause: Front-Line Therapy for All Phases
Of all the changes women experience during their reproductive life, there is no doubt the most dreaded are the three phases of menopause. This is not surprising since all of the symptoms associated with menopause are replete with unpleasantness.
Let's Clear Up the Collection Confusion
This is an often-misunderstood practice swirling with misinformation. First, a few basics: Insurance is a contract between the patient and the insurance company. The insurance company is simply making a payment for services or care on behalf of the patient.
Qigong for Substance Abuse
It is commonly believed that substance abuse, in addition to harming one’s physiological state, hurts the spirit. There is also a belief that one’s spirit does not weaken due to substance abuse, but rather, the person finds solace in addiction due to an already weak spirit.
Low Back Pain in Running Athletes
After 7 million years of adapting to upright postures, the lumbar spine and pelvis have become remarkably adept at managing ground-reactive forces associated with running.
The winter season is upon us and offers unique challenges for the clinician and patient alike. To effectively navigate through the winter season there are two main TCM medicinals, Huang Qi and Gan Jiang, to consider, as well as two important formulas which feature these two TCM treasures.
We Get Letters & Email
Our Country Needs Us Between Elections, Too; Continuing Care: We Aren't There Yet; Our Associations Need to Do More.
True Practice Mobility for the Chiropractic Profession
When natural disasters occur, chiropractors can literally travel to the other side of the world to offer humanitarian relief in less than a day. The chiropractor's license to legally practice, however, can't make it past the state line.
A Conversation With Dr. Betty Edmond
This month's column is an exclusive interview with Betty Edmond MD, newly elected CEO/President of the AOMA Graduate School of Integrative Medicine in Austin, Texas.
A New Year and Vision for the ACA
Inadequate pain management coupled with the epidemic of prescription opioid overuse and abuse has taken a severe toll on the lives of millions of people in the United States. Every day, more than 1,000 people are treated in the ER for misusing prescription opioids.
News in Brief
Updated Neck Pain & Whiplash Guideline; Attention, IHS DCs; New VP of Institutional Advancement At Palmer; N.J. DC Interns At U.S. Olympic Training Center; Chiropractic Society Of R.I. On The Front Lines.
Anti-Aging With Dr. Ping Zhang
Jennifer Waters, TCM practitioner and writer of the Acupuncture Today column, "Talking With the Masters" sat down with Dr. Ping Zhang to discuss aniti-aging with acupuncture.
Prepare for the End, From the Beginning: Wealth Building and Retirement with the Tao
Yin and yang flow into and out from one another continually. Beginnings become endings and endings become beginnings again. Wholeness and cycles are the nature of Tao.
Another Step Forward for Chiropractic
Chiropractic is now available to 86,000-plus Latter-Day Saints missionaries and you are invited to become a provider. LDS membership in not required; our only concern is that our missionaries get the best quality care available.
The Case Report: A Valuable Tool
Case reports are a valuable form of descriptive research. The most basic form of practice-based research, a case report is a detailed account of the history, presenting symptoms, assessment, observations, treatment and follow-up of an individual patient, discussed in the context of prior and potential future research.
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.
Join the conversation
Comments are encouraged, but you must follow our User Agreementcomments powered by Disqus
Keep it civil and stay on topic. No profanity, vulgar, racist or hateful comments or personal attacks. Anyone who chooses to exercise poor judgement will be blocked. By posting your comment, you agree to allow MPA Media the right to republish your name and comment in additional MPA Media publications without any notification or payment.