resourcesABOUT MT AUTHOR GUIDELINES CLASSIFIEDS EDITORIAL CALENDAR MEDIA GUIDE MASSAGE MART SCHOOLS & EDUCATION FEEDBACK
Are You Ready for the 2016 Patient?
In October, Apple released its iOS 8 operating system for the iPhone and iPad. The new system includes Health, a new app that will interface with an ever-growing number of other apps.
Peer Points: Promoting TCM Knowledge
When Elaine Wolf Komarow, LAc, received her first acupuncture treatment in 1989, she said it changed her life. "I felt more aware, calmer, and happier. I was so fascinated by the changes that I began to learn everything I could about the underlying philosophy of Chinese medicine," said Komarow.
Chinese Medicine: The Natural Way to Children's Wellness
As a child, I did not like going to the doctor. For the most part, when I had to go I wasn't feeling good to begin with, and I was heading into a sterile environment to be awkwardly probed by a man in a white coat for a very short, impersonal period of time.
Foundation for Chiropractic Progress Announces First Group Member
The Michigan Association of Chiropractors has joined the Foundation for Chiropractic Progress as its first group member.
Why Drugs and Supplements Can't Cure Disease
Chronic diseases are the outcome of disease-promoting, goal-oriented behaviors. So, the notion that diseases can be cured with drugs or supplements should be abandoned. Hypertension is the best example of this.
Home Safety: Help Families Avoid Common Injury Hazards at Home
These days, many parents childproof their homes before a baby is even mobile. You will see an array of electrical outlet covers, bumpers on the corners of the coffee table and safety latches on the cupboards.
Capturing the Essence of Tai Chi
Over the last 12 years, I have been working on one of the few documentaries about Tai Chi. It's called The Professor: Tai Chi's Journey West and it's about Cheng Man-Ching who moved to New York in the 1960s.
The Power of Mu Xiang to Treat Irritable Bowel Disease
Bloating and gas pain is something that everyone has had to deal with at one point or another; however, that's usually reserved for holiday dinners and other large gatherings.
Avoiding "Just a Pop Doc" Syndrome
Yes, it's harsh. Patients don't like to admit it. They have an unspoken plan when they first visit you: to come one time, get rid of their pain and then get rid of you. They know it's unrealistic, but they'd like to pay nothing for this service.
Introduce Your Patients to Collagen Induction Therapy
Cutaneous (skin) aging generally occurs from either intrinsic or extrinsic processes. Intrinsic aging results from natural skin tissue damage and degeneration.
Step by Step: Long-Term Treatment of Soft-Tissue Injuries Combines Skill and Care
Treating soft-tissue injuries with long-lasting results starts the moment an individual enters the office. When it comes to pain, the only thing that matters to the patient is relief.
Solving the Pain Puzzle
Legendary former New York Yankees baseball player Yogi Berra once said, "You can observe a lot just by watching." He would have been a great chiropractor. We are trained to become experts with our hands: palpation, adjusting, soft-tissue release, etc.
Meat in the Middle
Have you ever wondered what's the truth about meat? Is it really as bad as many people think?
The Death of the Travel Card
As long as I have been in practice, the travel card has stood as the primary style of documentation for chiropractic. It is quick, simple and direct. Unfortunately, the rules have changed.
Treating Chronic Depression with Acupressure
In Traditional Chinese Medicine there already exists a comprehensive theory linking the body and mind.
News in Brief
Life to Open Branch Campus in Italy; Northwestern Research Arm Benefits From Big Donation.
Make Low-Level Laser Therapy Part of Your Evidence-Based Practice
Low-level laser therapy (LLLT), also referred to as photobiomodulation, has been increasingly utilized in the clinical setting over the past decade.
Following the Thinking of the Classics
I have heard about the "best time of day" to carry out certain examinations or therapies. For example, I remember making a note years ago that early morning is the best time to take someone's pulses.
The Acupuncture Now Foundation: What Our Profession Needs
Although acupuncture is growing in popularity it continues to be underutilized due to misunderstandings about its true potential. Only a fraction of those who could be helped by acupuncture know enough to seek it out.
We Get Letters & Email
Is It Time for a Popeye Moment? The Flaw in Recommending Chiropractic as a Career.
Acupuncture Detox as Part of Drug Rehabilitation
In the U.S., more than 2,000 alcohol and drug rehabilitation programs have added ear acupuncture to their practice. The development of the protocol was determined by Lincoln Hospital as it delivered 100 acupuncture treatments daily.
Implications of Section 2706: The Non-Discrimination Provision Survey
In late April 2014, NCCAOM diplomates received an email survey with the subject line: "End discrimination against acupuncturists" polling CAM practitioners for a Request for Information from the Department of Health and Human Services, released in mid-March.
Inspire Your Patients to Make Healthy Choices
Have you tried to get your patients to change their eating habits or their diet and couldn't get them to succeed? Were they confused and unsure of what the right thing was to eat? You are not alone!
DC App – The Next Generation
According to a survey by technology firm CDW, health care professionals gain approximately 1.2 hours per day in productivity simply by using a tablet computer in practice.
Are You Ignoring the 10,000-Hour Rule?
Having trained interns and mentored new practitioners, it has been my observation that their No. 1 clinical concern is adjusting skills. Their second clinical concern is their ability to read X-rays. Physical diagnostic skills are a distant third.
Chronic heightened emotional states create a perfect breeding ground for illness. Through my practice I noted the increasingly obvious relationship between one's mental focus on negative thinking, emotions, resistance to experiencing feelings and disease.
It Pays to be a Foodie
If there is an inner foodie in you, just waiting to burst out—this article is for you! Do you want to know how I know? I'm that girl. My middle name might as well be "Foodie." I love food! And if my patients are any indication, many of them do as well.
Treating Menopausal Women in Your Practice
I love what I do for a living. It's a great way to trade health for bread. And no topic of health, with the right bedside manner, is taboo.
Treating Acute and Chronic Neck Pain With Ischemic Compression and Exercise
There are many reasons not to manipulate the neck with cavitation: the patient is too old, their neck is too tight, etc. But the most common reason is that plenty of patients are afraid of "the crack," mostly because of the bad publicity about that procedure.
Micro-Needle Dermal Roller Use in the Treatment Room
Recently micro-needle dermal rollers have been getting a lot of media attention. As a practitioner who specializes in acupuncture facial rejuvenation, I know that skin needling with a dermal roller (also known as collagen induction therapy), promotes the natural reproduction of collagen and elastin, making the skin feel smoother and tighter.
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.
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.