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Ski Season, Knee Injuries, And Posterior Cruciate Ligament Tears

We’re in ski season and so a few unfortunate individuals will suffer few knee injuries. A while back, a reader asked me to describe an uncommon injury, which is a torn posterior cruciate ligament (PCL).

This injury usually occurs during a fall. As you can see from the drawing, the PCL keeps the lower leg bone (tibia) from moving too far back in relation to the upper leg bone (femur). If a sudden unnatural force is applied, usually a direct blow to the front of the lower leg near the knee while the knee is bent, the tibia is jammed backwards and the PCL may be torn. In the skiing situation, this usually happens during a fall and a tumble, when someone strikes an immovable object, or when the knee is bent or “twisted” and struck forcefully from the side.

The immediate sensation is pain, and there may be a feeling of instability to the knee, particularly when trying to walk or change levels (e.g., walk over the snowpack or on stairs). When the injury occurs, there usually is not the “pop” sensation noted with an anterior cruciate ligament tear. However, the knee will almost always swell, because there is bleeding into the knee joint and/or soft tissue swelling. Read more »

This post, Ski Season, Knee Injuries, And Posterior Cruciate Ligament Tears, was originally published on Healthine.com by Paul Auerbach, M.D..

At-Home Hand Training For Stroke Rehabilitation


Students at Northeastern University are developing electronic gloves to help post stroke patients recover their motor skills. The Angle Tracking and Location at Home System (ATLAS) bimanual rehabilitation glove has sensors and a feedback mechanism that interfaces with a computer to allow hand training at home. Read more »

*This blog post was originally published at Medgadget*

World’s First Bionic Fingers

Touch Bionics, a company out of Livingston, UK and Hilliard, Ohio known for its i-LIMB device, is making available a new finger prosthesis system. ProDigits, a customizable platform that can be adapted to the needs of individual patients, provides electronically powered artificial fingers that can grasp and manipulate objects. The new hand can also be used for more advanced tasks such as typing on a keyboard. Read more »

*This blog post was originally published at Medgadget*

Motorcycle Helmets: Why Don’t People Wear Them?

The National Highway Traffic Safety Administration reported an analysis of motorcycle helmet use in fatal crashes. What was discovered is not surprising – namely, that in states in which there is not a state helmet law, the odds of a rider in a single-vehicle (e.g., the motorcycle) crash wearing a helmet was 72% less than in states with a helmet law. So, absent a law, people are not particularly inclined to wear a helmet.

One needs to couple this information with the facts about the benefits of wearing motorcycle helmets. First, motorcyle fatalities and fatality rates are increasing at a time when motorcycle riding is becoming more popular. Second, the average age of motorcycle fatalities has moved up to 39 years, from 30 years nearly 20 years ago, probably because the age of motorcycle riders has increased. Third, motorcycles expose the drivers more directly to lethal forces than do enclosed vehicles. Helmets are essential to prevent brain injuries and deaths. Read more »

This post, Motorcycle Helmets: Why Don’t People Wear Them?, was originally published on Healthine.com by Paul Auerbach, M.D..

What’s The Most Expensive Medical Condition?

What medical condition costs the U.S. Health system the most in disability and overall costs? If you said heart disease or cancer or pulmonary disease you would be wrong! I would have said one of those myself.

The answer…slow drumroll….is musculoskeletal disease. Yes, 50% of the adult population reported having a disabling musculoskeletal condition in 2008. The expenditures for these problems include the costs of preventive care, the cost of direct care, the cost of care in hospitals, by physicians, therapists and other caregivers. It also includes the loss of productivity. In 2004 it was estimated that the cost of care for musculoskeletal problems was $840 billion. (Hey, isn’t that about equal to the bank bailout?)

What are musculoskeletal conditions? They include that old nemesis: Low back and neck pain. Spine problems are among the most common problems that bring patients for medical care. That’s why the chiropractic industry is booming. Read more »

*This blog post was originally published at EverythingHealth*

Latest Interviews

IDEA Labs: Medical Students Take The Lead In Healthcare Innovation

It’s no secret that doctors are disappointed with the way that the U.S. healthcare system is evolving. Most feel helpless about improving their work conditions or solving technical problems in patient care. Fortunately one young medical student was undeterred by the mountain of disappointment carried by his senior clinician mentors…

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How To Be A Successful Patient: Young Doctors Offer Some Advice

I am proud to be a part of the American Resident Project an initiative that promotes the writing of medical students residents and new physicians as they explore ideas for transforming American health care delivery. I recently had the opportunity to interview three of the writing fellows about how to…

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Latest Book Reviews

Book Review: Is Empathy Learned By Faking It Till It’s Real?

I m often asked to do book reviews on my blog and I rarely agree to them. This is because it takes me a long time to read a book and then if I don t enjoy it I figure the author would rather me remain silent than publish my…

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The Spirit Of The Place: Samuel Shem’s New Book May Depress You

When I was in medical school I read Samuel Shem s House Of God as a right of passage. At the time I found it to be a cynical yet eerily accurate portrayal of the underbelly of academic medicine. I gained comfort from its gallows humor and it made me…

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Eat To Save Your Life: Another Half-True Diet Book

I am hesitant to review diet books because they are so often a tangled mess of fact and fiction. Teasing out their truth from falsehood is about as exhausting as delousing a long-haired elementary school student. However after being approached by the authors’ PR agency with the promise of a…

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