resourcesABOUT MT AUTHOR GUIDELINES CLASSIFIEDS EDITORIAL CALENDAR MEDIA GUIDE MASSAGE MART SCHOOLS & EDUCATION FEEDBACK
Acupuncture Ambassadors: A Chat with Leader Anthony M. Giovanniello, MSAc,LAc
When you first meet Anthony Giovanniello, you realize he's a humble practitioner, yet is bursting with a type of dedication that you can't help but be overwhelmingly inspired by.
Ever Heard of the Lateral Raphé?
We have all had acute patients enter our offices listing laterally to the side at the level of the lumbar spine or expressing pain on lateral lumbar bending.
News in Brief
Patriot Project: Serving Those Who Served; CTCA Chiropractor Receives Clinical Innovation Award.
Using Facial and Scalp Acupuncture To Treat Neuromuscular Facial Conditions
As a practitioner and instructor of facial rejuvenation acupuncture I have gotten many calls over the past 10 years from individuals seeking help for various conditions affecting the facial muscles, nerves, and overall function of the face.
Gallop Confidently Into The New Year
Happy New Year! As you may know, this is the year of the Wooden Horse. I received a wonderful gift for Christmas. It is a beautiful glass sculpture of a horse, by Luili Gong Fong, a Chinese artist.
Weighing in on Weight Loss
If your practice trends anything like the U.S. population, you are probably noticing over two-thirds of your patients could benefit from weight reduction, particularly if their main complaints include chronic back or joint pain.
Don't Believe It
One of our staff came into my office last week, very concerned about an article she had just read on a news media website. The article suggested researchers found "no health benefits" associated with taking multivitamins.
Peer Points: Spreading The Word
Pedram Shojai describes his venture into Traditional Chinese Medicine as a journey led by various "mystical experiences." Shojai decided to change the course of his career when he looked deeper into the basics of TCM.
Embracing the Light
Four years, ago I was diagnosed with a labral tear in my hip that was excruciating and "required surgery" according to an orthopedic surgeon. I tried everything and although the symptoms had mostly abated, I had to give up Yoga practice and everything that could exacerbate the tear.
Asymmetrical Pronation: Effect on Adjustments
When your patients don't respond as well as expected to their chiropractic adjustments, oftentimes there is a source of interference in the pedal foundation – asymmetrical pronation.
Qigong to Empower Our Youth
Qigong is an ancient form of exercise and meditation used to promote longevity and health. This practice has traditionally been used by adults to balance the body through mindfulness, focused breathing and gentle movements.
Eucommia Bark Helps Maintain Strong Bones
Eucommia bark is a major tonic herb used in Asia, and now throughout the world, that supports and helps mend the skeletal structure and its related tissues. Eucommia bark is collected from Eucommia ulmoides trees that are more than 10 years old.
Diagnosing Flexion-Intolerant Lower Back Pain (Part 2): Exercise Rehab
One of the things that has puzzled us for years is the presentation of the flexion-intolerant patient. We have realized there is a large overlap with sacroiliac indicators. In acute lumbar pain, the SI often twists, subluxes, goes haywire.
Managing Hallux Hypomobility Disorders (Part 2)
In part one of this series we discussed the unique properties and significance of the first toe in the propulsive phase of gait. In particular, we discussed the importance of the first metatarsophalangeal joint (MPJ).
The Deficiency Myth
If you went to the same kind of medical school I did and took the same kind of licensing exam I took, you were trained to seek out and expect to find primary deficiencies here in the U.S.
Grape Seed Extract: A Multifaceted Herb for Promoting Healthy Circulation
One of my favorite herbs is grape seed. Modern research has identified some intriguing health benefits attributable to the seed of this ancient fruit. I particularly use grape seed as an extract standardized for OPCs (oligomeric procyanidins).
The Importance of Staying Focused
Our world is so full of over stimulation and constant information. We live in a fast paced, ever-changing society. If you seek you will receive.
Common Disorders of the Temporomandibular Joint
The evaluation and management of craniofacial pain is a complex endeavor, which often encompasses the presence of temporomandibular joint disorders.
VA Names Sites for Pilot Chiropractic Residency Program
The Veterans Administration has announced the five VA medical facilities that will serve as initial sites for the administration's recently established pilot chiropractic residency program.
Gaining an Independent Occupational Code with the U.S. Bureau of Labor Statistics
One of the most important national activities currently taking place in relation to the development of the field of AOM profession is the Department of Labor's Bureau of Labor Statistics' (BLS) revision of the 2010 Standard Occupational Classification (SOC) system.
The Urinary Bladder Official
The Bladder Official is known as the Official Who Controls the Storage of Water. In Western medical terms, this organ collects the urine excreted by the kidneys.
An Alternate Method For Choosing The Right Formula For Your Patients
A constant question for us in the clinic is when to make adjustments and when to stay the course. A patient comes in and says, "Things are the same as last week."
Giving Testosterone Levels a Boost (Part 3)
Since testosterone and insulin status are inversely correlated, it's important to keep insulin low so testosterone will remain high.
Preserving the Natural Resources and Culture of Chinese Herbal Medicine
As the world experiences unprecedented population growth and ever-increasing ecological pressures, the topic of preserving Chinese medicine's natural resources has attracted steadily increasing attention from practitioners.
November, 2007, Vol. 07, Issue 11
Short Leg Syndrome: Part Two
By Erik Dalton, PhD
A highly debated postural issue begging for a logical explanation is the "short right-leg syndrome" (Fig. 1). Although an inferred awareness of right-sided limb-length shortness has existed for centuries, along with decades of published research, no one has provided a universally acceptable answer to two very important questions:
Let's begin by reviewing notable research regarding functional and structural short right legs and then discuss theories, assessments and corrections that help deal with this troublesome disorder.As Sir William Osler once stated, "In order to treat something, we must first be able to recognize it." Any attempt to tackle limb-length discrepancy and associated compensations, armed with inadequate evaluation tools, surely will lead to failure and frustration. In the absence of radiographic measurements, massage therapists must develop keen palpatory and visual skills for detecting osseous and soft-tissue dysfunction. Aberrant patterns are best identified and classified using the acronym ART: Asymmetry, Restriction of motion, and Tissue-texture abnormality. Although numerous tests and treatment modalities have proven successful in treating short legs and associated compensations, we'll focus on only a few fundamental myoskeletal techniques that add to your toolbox of touch.
Leg Length and Back Pain
In two exquisitely designed studies (1962 and 1983), Denslow and Chase measured leg-length discrepancy in 361 and 294 subjects presenting with low back pain.1 Using the most advanced radiographic technology currently available, their papers (published in the American Academy of Osteopathy) reported the following findings concerning limb-length discrepancy:
By comparing sagittal-plane femoral-head height and sacral base angulation (Fig. 3), the authors concluded that innominate bones rotate around the sacrum (iliosacral tilt). Transverse plane images revealed that the pelvis also can rotate as a block around the vertical lumbar spine. Denslow and Chase's pioneering work helped biomedical researchers understand how shortened limbs torsion the pelvis, creating painful lumbar compensations. Their data not only confirmed leg-length findings conducted by previous researchers but also prompted new, more sophisticated imaging studies. In 2004, John H. Juhl, DO, reported that 68 percent of 421 low back pain patients presented radiographically with short right legs.2
Functional Leg-Length Assessments
Through the years, manual therapists have developed many creative ways to differentiate functional (fixable) from structural (true) limb-length differences. Screening exams taught in educational programs often place too much emphasis on supine leg-length assessment in determining pelvic disorders. Commonly, one leg will appear shorter during visual observation of the supine client's medial malleoli (Fig. 4) when, in fact, the leg lengths actually are equal or just the opposite of how they appear radiographically when standing. For example, in the presence of a true (structural) short right leg, standing ASIS measurements should show an inferior slope on the short side. However, when the client lies supine (removed from vertical gravitational compression), the left leg may suddenly test shorter than the right. While many factors may contribute to this finding, one of the most common culprits is length/strength imbalance in deep intrinsic postural muscles such as the quadratus lumborum (QL). When unilaterally short and tight, the QL can 'hip hike' the left ilium as the client assumes an off-weighted supine posture. Confusion mounts as the left leg now appears shorter than the right. Figure 5 presents an effective contract/relax/assist maneuver to lengthen the hypercontracted left QL.
Although leg, hip and pelvic corrections shouldn't be based solely on supine test results, helpful information is derived by combining it with other exams such as prone leg-length tests. These oft-neglected prone assessments offer therapists additional clues for solving the limb- length puzzle. When prone, both ASISs are "pinned" to the table, thus preventing ilial rotation and allowing the therapist to isolate sacroiliac and axial skeletal joint dysfunction. Here's a quick reference for differentiating supine from prone limb-length assessment:
Supine: Tests leg-length differences resulting from iliosacral rotation, typically due to muscle imbalance.
Prone: Tests leg-length inequality as the lumbar spine attempts to adapt to sacral-base unleveling in the presence of SI joint dysfunction.
Depending on the degree of leg-length shortness, compensations may travel all the way up through the cervical spine and into the cranium (Ascending Syndrome). Conversely, "key" restrictions sometimes begin in the head or neck and travel down the kinetic chain (Descending Syndrome), causing pelvic obliquity and adaptive leg-shortening (Figs. 6A and B).
During the course of an examination, several simple tests help uncover the biomechanical root of the shortened leg. However, none are adequate to fully assess all possible causes. The Derifield (deer-field) Maneuver3 and others discussed below are useful in "weeding out" spinal and pelvic disorders.
The Derifield Maneuver
The neurological basis for body balance is found in the brain's reticular system, where the inhibitory and facilitory systems maintain muscle balance. Cranial or cervical fixations can affect lower-limb musculature via tonic neck reflexes, resulting in the appearance of one leg being short when viewed with the client in the prone position. Typically, comparisons are made by observing the feet, with knees in extended and flexed positions, noting any leg- length disparity (Fig. 7).
To determine if head/neck restrictions might be altering leg length, the therapist places the thumbs inferior to the medial malleoli. The client is asked to turn their head to one side and then the other. If cervical joint restrictions and/or bony spurs "snag" the dural membrane, head-turning can twist and torsion the sacrum, resulting in leg-length changes. Sometimes, the apparent leg-length discrepancy is resolved or even reversed during these cervical rotation maneuvers.
The second phase of testing begins with the client's head in neutral with the therapist's thumbs evaluating medial malleoli height. Once a visual measurement has been noted, the therapist's hands slightly plantar-flex the client's feet while slowly bending the knees to 90°, examining for any changes in heel height. Four possible findings may be noted during this test.
2. Short leg gets shorter. Sacroiliac and lumbar spine dysfunction can create muscle hypertonicity that shortens the leg in appearance as it is flexed. Figures 9A and B show effective myoskeletal springing maneuvers for derotating the pelvis to correct sacroiliac and lumbar spine asymmetry.
3. Short leg becomes longer. A posteriorly rotated and fixated ilium (usually left) shortens the leg. When accompanied by an adhesive right-anterior hip capsule, increased rectus femoris pull during knee flexion shortens the right extremity causing the left leg to appear as long, or longer, than the right. This is termed cross-over. The therapist should perform spring tests for a posteriorly fixated left ilium and anteriorly fixated, right hip capsule (Figs. 10A and B).
4. Heel Drop: With knees flexed 90°, the therapist allows both heels to drop toward the buttocks to see if one leg falls farther than the other. The heel falling farther usually is a positive indicator of a posterior sacral rotation on that side. This finding is noted as a positive Webster's sign.4 A variety of spring tests can be used to identify and correct the torsion.
Neurological Explanations for Short Legs
When a short-right-legged client stands with each foot resting side by side on bathroom scales, a measurable weight-shift typically occurs to the low side. The Leaning Tower of Pisa demonstrates this normal law of physics. However, the Tower does not possess a nervous system. Several researchers including Kappler, Previc and Pope5,6,7 believe that some individuals unconsciously resist this gravitational pull by sideshifting body weight to the left side, through a prenatal organizational system called cerebral lateralization. Their research theorizes that motor dominance overrides anatomical and gravitational factors in these individuals. It's thought that right motor dominance has roots in fetal positioning during the third trimester, resulting in the brain's lateralization process.8
In the brain, motor dominance typically crosses cortexes from left to right (left brain controls right side of the body). Conveniently, left vestibular dominance, which assists in balance, coordination and orientation, travels ipsilaterally down the left leg to allow left-sided weight bearing during right motor-dominant activities. For instance, a right motor-dominant person typically balances on their left leg to perform tasks such as kicking a ball (Fig. 11). Combining right motor and left vestibular dominance often results in a left-side-shifting maneuver of the pelvis over the vestibularly long left leg during standing (Fig. 12). This neurological postural shift helps explain many unusual pain patterns seen in clinic.
Short Leg Symptoms
Those with short right legs who bear more to the short right side usually report greater SI joint pain in the right hip and low back area. Examination of the sacrum often reveals a deep right sacral base, positive spring test for anteriorly fixated ilium and tender iliolumbar and sacroiliac ligaments. Conversely, motor-dominant clients who side-shift over the left leg usually experience greater left-sided SI joint pain and a positive spring test for a posteriorly fixated ilium. Symptoms worsen during prolonged walking or running, as overstretched abductors grind against the greater trochanter, creating bursitis, gluteus medius tendinosis and piriformis syndrome.
Since the human body rarely is symmetrical side to side, testing for loss of joint play often provides more reliable information than analyzing anatomical landmark findings. For decades, therapists have utilized spring tests to determine the presence (or absence) of joint-play in ankles, feet, hips and shoulders. Regrettably, spring tests are not as commonly used to evaluate spinal and sacroiliac joints. Therapists can benefit greatly by observing for common postural patterns during gait, checking anatomical landmarks, and spring-testing questionable structures to see if the findings have relative value.
Iliosacral, SI joint, and lumbar spine spring tests are valuable assessment and treatment tools that fit perfectly into a massage therapy format. Following the supine and prone leg-length tests, specific springing maneuvers can be used to verify findings and correct motion-restricted joints.
Since short limbs arise from biomechanical as well as neurological factors, therapists must take time to fully evaluate the client looking for common compensatory patterns such as the short right leg. Visual observation of the client's gait alerts the therapist to the possibility of cerebral lateralization and accompanying pelvic side-shifting. Supine and prone exams should be compared with other anatomical landmark findings to determine whether iliosacral, sacroiliac or head and neck restrictions are responsible for limb-length problems. Discrepancies greater than 2 cm can be associated with scoliosis, pelvic obliquity and alterations in the normal walking cycle. From a functional standpoint, there is strong, though not conclusive, evidence of an associated increase in the incidence of low back pain and hip joint osteoarthritis.
Click here for more information about Erik Dalton, PhD.
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