Archive for August, 2011

Overloaded backpacks can injure children

Sunday, August 21st, 2011

I am posting this on facebook ,to help with the new school year.

Parents should inspect their child’s backpack from time to time,” Hyman said.  “They often carry much more than they should, with extra shoes, toys, electronic  devices and other unnecessary items.”

Hyman, also an associate professor of orthopedic surgery at the Columbia  University College of Physicians and Surgeons, said a backpack shouldn’t weigh  more than 15 percent of a child’s weight, or approximately seven pounds for a  child weighing 50 pounds.

“If it is textbooks that are making the bag too heavy, parents should speak  with the teacher. Sometimes, these books can be left at school,” he said.

Also, to guard against injury, children should wear a backpack correctly over  both shoulders so the weight is spread evenly, Hyman said. As an alternative,  they could consider a backpack on wheels.

If a child experiences persistent pain, Hyman said, parents should consult  their pediatrician, who may recommend physical therapy to strengthen back  muscles.

A backpack may be too heavy if a child’s posture changes when putting it on  or if the child suffers pain or has tingling or red marks.

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Stem Cells in Orthopedics

Wednesday, August 17th, 2011

I was reading about the new entry into the Republican Bid for president Rick Perry, and was surprised to find out he had a spine fusion and Stem Cell Treatment.

A stem cell is a cell that has the ability to divide for indefinite periods – often through out the life of an organism. The stem cells, when provided with the right signals, have the potential to differentiate into different types of cells that constitute an organism. These cells when differentiated can have a characteristic shape and specialized functions, such as heart cells, skin cells or nerve cells. In short, stem cells have two distinctive properties, one they can make identical copies of themselves for a long period of time (self renewal) and two give rise to mature cells that have a characteristic morphology.

Their use in orthopedics has gained a significant momentum in past few years and the field is witnessing some path breaking research currently. Stem cells are derived from three main sources: embryos, adults and the umbilical cord.

Embryonic stem cells: These stem cells are defined by their origin, which is from one of the earliest stages of development of the embryo called blastocyst.
Adult stem cell: It is an undifferentiated cell that is found in a differentiated tissue, it can renew itself and become specialized to yield all the specialized cell types of the tissue from which it originated. Sources of adult stem cell have been found in the bone marrow, blood stream, cornea and retina of the eyes, the dentine, liver, skin, pancreas and gastro intestinal tract. In contrast to the embryonic stem cells, these are not capable of forming all the cells of the body that is they are not pleuripotent. Adult stem cells are rare and their primary function is to maintain homeostasis and to a certain extent repair and replace the cells that die because of injury or disease. .  Umbilical cord stem cells: These are cells harvested from the cord blood.

Spinal Cord Regeneration

Injury to neural tissue results in a permanent deficit as neurons do not have the ability to repair or regenerate.

Critical Bone Defects and Non-unions

Critical defect is defined as a loss of a portion of bone that fails to heal and requires a bone reconstruction to prevent a non-union defect. The ideal modality for management of these defects have so far been the autologous bone grafting procedures, but since the amount of the autologous bone graft that can be harvested remains limited and also conditions like osteoporosis precludes its use, alternatives are aggressively being explored.

Cartilage Repair

Treating cartilage injuries and degeneration would be preferable over the joint arthroplasties. Recently the researchers are reviewing the use of periosteal derived stem cells in the repair of osteochondral defects.

ACL Reconstruction Augmentation

ACL reconstructions enhanced with stem cells had better strength and stiffness. Stem cells have the potential to provide stronger ligament reconstructions physiologically and biomechanically in the near future. Meniscal tears in the avascular zone have limited capacity to heal due to inadequate blood supply.Adding stem cell to the defect has proven useful.
Muscular Dystrophies

Muscular dystrophies are group of disorders, which are associated with serious clinical implications, but there is still no cure.

Spine Fusion

Spine fusion was achieved by injecting stem cells at the fusion site.

Some issues remain at the forefront of the controversy involving stem cell research – legislation, ethics and public opinion, cost and concentration methods. Legislations regarding the use of stem cells vary among different countries as does the public opinion and the moral high grounds assumed by various political and religious groups.

Researchers argue that many of the embryos created by in vitro fertilization programs are surplus to requirements and are in any case normally destroyed. These can be potentially used for the derivation of ES cells.

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Yoga Cures for Shoulder Problems

Tuesday, August 2nd, 2011

With the costs of medical care spiraling out of control and an ever-growing shortage of doctors to treat an aging population, it pays to know about methods of prevention and treatment for orthopedic problems that are low-cost and rely almost entirely on self-care. As certain methods of alternative medicine are shown to have real value, some mainstream doctors who “think outside the box” have begun to incorporate them into their practices.

Jason Lee

FASTER THAN AN OPERATION The triangular forearm support may relieve shoulder pain in those with injured rotator cuffs.

One of them is Loren Fishman, a physiatrist — a specialist in physical and rehabilitative medicine affiliated with NewYork-Presbyterian/Columbia hospital. Some in the medical profession would consider Dr. Fishman a renegade, but to many of his patients he’s a miracle worker who treats their various orthopedic disorders without the drugs, surgery or endless months of physical therapy most doctors recommend.

Many years ago, I wrote about Dr. Fishman’s nonsurgical treatment of piriformis syndrome, crippling pain in the lower back or leg caused by a muscle spasm in the buttocks that entraps the sciatic nerve. The condition is often misdiagnosed as a back problem, and patients frequently undergo surgery or lengthy physical therapy without relief.

Dr. Fishman developed a simple diagnostic technique for piriformis syndrome and showed that an injection into the muscle to break up the spasm, sometimes followed by yoga exercises or brief physical therapy, relieves the pain in an overwhelming majority of cases.

Nowadays yoga exercises form a centerpiece of his practice. Dr. Fishman, a lifelong devotee of yoga who studied it for three years in India before going to medical school, uses various yoga positions to help prevent, treat, and he says, halt and often reverse conditions like shoulder injuries, osteoporosis, osteoarthritis and scoliosis. I rarely devote this column to one doctor’s approach to treatment, and I’m not presenting his approach as a cure-all. But I do think it has value. And he has written several well-illustrated books that can be helpful if used in combination with proper medical diagnosis and guidance.

For many years, yoga teachers and enthusiasts have touted the benefits to the body of this ancient practice, but it is the rare physician who both endorses it and documents its value in clinical tests. Dr. Fishman has done both. Rotator Cuff Relief

This year, Dr. Fishman received a prize at the International Conference on Yoga for Health and Social Transformation for a paper he presented on a surprising yoga remedy for rotator cuff syndrome, a common shoulder injury that causes extreme pain when trying to raise one’s arm to shoulder height and higher. He described a modified form of a yoga headstand that does not require standing on the head and takes only 30 seconds to perform, and presented evidence that it could relieve shoulder pain in most patients, and that adding brief physical therapy could keep the problem from recurring.

Rotator cuff injuries are extremely common, especially among athletes, gym and sports enthusiasts, older people, accident victims and people whose jobs involve repeated overhead motions.

For patients facing surgery to repair a tear in the rotator cuff and many months of rehabilitation, the yoga maneuver can seem almost a miracle. It is especially useful for the elderly, who are often poor candidates for surgery.

Dr. Fishman said he successfully treated a former basketball player, who responded immediately, and a 40-year-old magazine photographer who had torn his rotator cuff while on assignment. The photographer, he said, had been unable to lift his arm high enough to shake someone’s hand.

Instead of an operation that can cost as much as $12,000, followed by four months of physical therapy, with no guarantee of success, Dr. Fishman’s treatment, is an adaptation of a yoga headstand called the triangular forearm support. His version can be done against a wall or using a chair as well as on one’s head. The maneuver, in effect, trains a muscle below the shoulder blade, the subscapularis, to take over the job of the injured muscle, the supraspinatus, that normally raises the arm from below chest height to above the shoulder.

The doctor discovered the benefit of this technique quite accidentally. He had suffered a bad tear in his left shoulder when he swerved to avoid a taxi that had pulled in front of his car. Frustrated by an inability to practice yoga during the month he waited to see a surgeon, one day he attempted a yoga headstand. After righting himself, he discovered he could raise his left arm over his head without pain, even though an M.R.I. showed that the supraspinatus muscle was still torn.

Dr. Fishman, who has since treated more than 700 patients with this technique, said it has helped about 90 percent of them. “It doesn’t work on everyone — not on string musicians, for example, whose shoulder muscles are overtrained,” he said in an interview.

In a report published this spring in Topics in Geriatric Rehabilitation (an issue of the journal devoted to therapeutic yoga), he described results in 50 patients with partial or complete tears of the supraspinatus muscle. The initial yoga maneuver was repeated in physical therapy for an average of five sessions and the patients were followed for an average of two and a half years.

The doctor and his co-authors reported that the benefits matched, and in some cases exceeded, those following physical therapy alone or surgery and rehabilitation. All the yoga-treated patients maintained their initial relief for as long as they were studied, up to eight years, and none experienced new tears.

Yoga for Bone Disease

Perhaps more important from a public health standpoint is the research Dr. Fishman is doing on yoga’s benefits to bones. Bone loss is epidemic in our society, and the methods to prevent and treat it are far from ideal. Weight-bearing exercise helps, but not everyone can jog, dance or walk briskly, and repeated pounding on knees and hips can eventually cause joint deterioration.

Strength training, in which muscles pull on bones, is perhaps even more beneficial, and Dr. Fishman has observed that osteoporosis and resulting fractures are rare among regular yoga practitioners.

In a pilot study that began with 187 people with osteoporosis and 30 with its precursor, osteopenia, he found that compliance with the yoga exercises was poor. But the 11 patients who did 10 minutes of yoga daily for two years increased bone density in their hips and spines while seven patients who served as controls continued to lose bone. He noted that yoga’s benefits also decrease the risk of falls, which can result in osteoporotic fractures.

Medical guidance here is important, especially for older people who may have orthopedic issues that require adaptations of the yoga moves.

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New Breaks in Collarbone

Monday, August 1st, 2011

I came accross a good review of clavicle fractures. As cyclists we all know that sooner or later we are going to fall off of our bikes be it training or racing.  Giving this inevitable fact chances are that you or someone that you know has been sidelined with a clavicle (collarbone) fracture as a result. When we look at fractures as a whole in cyclists, the collarbone is the most frequent bone to be broken.

This year’s crash-marred Tour de France is a good case in point with the high number of abandoned riders with clavicle fractures and gives us a good opportunity to take a closer look at this injury that plagues the peloton.

The anatomy

The clavicle is an S-shaped long bone that acts as a strut to attach the shoulder to the axial skeleton.  Its most anterior apex attaches to the sternum via the sterno-clavicular joint and at the posterior apex it broadens and flattens to attach to the acromion via the acromio-clavicular joint.  The bone acts as an attachment point of several muscles such as the sternocleidomastoid, pectoralis major, and the sternohyoid muscles medially and on the lateral side the anterior deltoid, trapezius and the pectoralis major’s clavicular head.

With respect to characterizing clavicle fractures we tend to divide the bone into thirds with a medial, middle and lateral portions.

Fracture to the medial third of the clavicle are rare and make up less than 3 percent of breaks, while the lateral third is the second most frequently involved portion and accounts for 15-30 percent of all fractures.

The middle third of the clavicle is the narrowest section of the bone and lacks the muscular and ligamentous attachment of the ends.  These facts when taken together are thought to make it more susceptible to injury and it is indeed the most frequent site of fracture (70-80 percent of all clavicle fractures).

Displacement is a term that means the bony ends of a fracture do not align and these mid-shaft fractures tend to have high rate of displacement with an incidence found to be between 48-73 percent.  This high rate is likely related to the muscular attachments at the ends of the clavicle pulling the fracture fragments of bone away from their normal anatomic alignment, along with the actual weight of the upper extremity itself contributing to this distraction in some cases.

One of our own takes a fall

To illustrate the clinical aspects of clavicular fracture in cyclists, Boulder Center for Sports Medicine’s very own Neal Henderson, Director of Sport Science, has given his blessing to share his case.  Neal, while racing a criterium in June this year, fell hard and took a forceful direct impact to the left shoulder.  He felt a snap in the anterior shoulder area and found it painful and difficult to move his left arm afterwards.

X-ray of Neal Henderson after his crash. Photo courtesy Boulder Center for Sports Medicine.X-ray of Neal Henderson after his crash. Photo courtesy Boulder Center for Sports Medicine.

Neal would soon after seek medical attention and x-rays revealed a left middle third clavicle fracture that was displaced and comminuted, which means the bone was in more than two pieces. This direct impact to the shoulder that he sustained turns out to be the most common injury mechanism in clavicle fracture with the second most being a Fall On an Outstretched Hand (FOOSH) injury.

In cases of clavicle fracture it is extremely important to assess for concomitant injuries to the lungs, the surrounding neurovasculature, and other musculoskeletal issues such as associated rib fractures, AC joint separation and other scapular injuries to name a few.  In Neal’s case he was fortunate to have only a painful case of road rash to accompany his fracture and was giving a sling to immobilize the shoulder for comfort and was told to follow up in the Sports Center.

In these injuries the clinician’s goal from a management standpoint should be to heal the clavicle in a fashion that recreates its function as a solid support for the shoulder girdle to elicit the return of pain-free range of motion, normal strength and to avoid bony non-union and malunion (bone fragments heal together but there is persistent pain and or loss of shoulder function).  The means of accomplishing this goal by bringing about the least risk and harm to the patient is ideal.

To operate or not?

Historically in regards to midshaft clavicle fractures it was thought that the best approach was non-operative management even in cases of large displacement with damage to vasculature/nerves, open fractures (bone fragments pierce the skin) and painful non-unions being the most common indications to proceed with operative intervention.  Over the last decade this approach has come under increasing scrutiny, with newer studies of completely displaced fractures showing much higher patient dissatisfaction rates than previously thought in those treated with non-operative management.  These rates were secondary to a markedly increased rate of non-union than formerly documented (up to 21 percent) as well as malunions causing considerable shoulder girdle dysfunction.  Taking this into account with the improved surgical fixation techniques and much lower complication rates over the last decade, it has made operative interventions much more viable from a management standpoint.

The approach to the patient with clavicle fracture should be on a very individualized basis with age, activity level, personal preferences, fracture type and monetary/insurance concerns playing important roles in the decision process.  In Neal’s case having a comminuted and displaced fracture put him at increased risk of non-union/malunion, and this along with his desire for decreased pain and faster return to cycling activities made operative repair the best choice. His choice was made with the awareness of surgery specific risks of post-operative infection, collateral injury to soft tissue via surgical approach, and the inherent risks of anesthesia as well as the potential of hardware failure and the possibility of the eventual need for its removal.

X-ray of Neal Henderson after surgery. Photo courtesy Boulder Center for Sports Medicine.X-ray of Neal Henderson after surgery. Photo courtesy Boulder Center for Sports Medicine.

It was three days after his initial injury that Neal underwent successful and uncomplicated open reduction and internal fixation of his left clavicle fracture with titanium plate and screws.  The choice of plate and screws was made over the alternative intramedullary nailing technique given the multiple bone fragments at his fracture site.

Interestingly enough during the surgery it was noted that soft tissue and trapezius muscle were interjected between the fracture fragments and would have in all likelihood increased his risk on non-union if he would have undergone non-operative management.

Neal would eventually be able to resume riding on an indoor trainer one week after surgery and go on to resume outdoor training at four weeks.  His case demonstrates the benefits of surgical fixation of the displaced clavicle fracture and acts as a best case scenario in terms of the more rapid return to cycling training, the decreased risk of non-union/malunion complications and the immediate return of stability to the shoulder girdle itself.

I again must reiterate that each case has to be approached on an individual basis and poor surgical candidates as well as minor and or non-displaced clavicle fracture would in most cases be better served with a conservative non-operative approach and should be a discussion with your orthopedic surgeon that is not to be taken lightly.

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