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This video shows how to perform the McMurray test, one of the most commonly used clinical assessment tools to assess for meniscal injuries in the knee.
This video clip is part of the FIFA Diploma in Football Medicine and the FIFA Medical Network. To enrol or to find our more click on the following link http://www.fifamedicalnetwork.com
The Diploma is a free online course designed to help clinicians learn how to diagnose and manage common football-related injuries and illnesses. There are a total of 42 modules created by football medicine experts. Visit a single page, complete individual modules or finish the entire course.
The network provides the opportunity for clinicians around the world to meet and share ideas relating to football medicine. Ask about an interesting case, debate current practice and discuss treatment strategies. Create a profile and log on to interact with other health professionals from around the globe.
This is not medical advice. The content is intended as educational content for health care professionals and students. If you are a patient, seek care of a health care professional.
Shamika Burrage survived a near-fatal car accident two years ago, but not without losing something pretty important: her left ear. Now, thanks to a novel procedure performed at an Army medical center in Texas, Burrage is getting that ear back in a most unusual way. Plastic surgeons harvested cartilage from Burrage's ribs to create a new ear and then grew it under the skin of her forearm. Then the doctors at William Beaumont Army Medical Center in El Paso successfully transplanted the ear from her arm to her head. The technique -- a first time in the Army -- is called prelaminated forearm free flap, said Lt. Col. Owen Johnson III, chief of plastic and reconstructive surgery at William Beaumont Army Medical Center. Some of the big advantages of it is that it reduced the chance of more scarring around Burrage's ear. Also, growing the ear under the skin of her forearm allows new blood vessels to form. "(The ear) will have fresh arteries, fresh veins and even a fresh nerve so she'll be able to feel it," Johnson said on the US Army's website. Burrage, a 21-year-old private, still has to endure two more surgeries, but she's feeling more optimistic about the future than ever in the years since her accident. "It's been a long process for everything, but I'm back," said Burrage.
Dr. James Wall performs a bilateral inguinial hernia repair surgical procedure.
Featured:
James Wall, MD
Assistant Professor of Surgery, Pediatric Surgery
Assistant Professor of Bioengineering (By Courtesy)
Lucile Salter Packard Children's Hospital
Micaela Esquivel, MD
Chief Resident of General Surgery
The complex circuitry interconnecting different areas in the brain, known collectively as white matter, is composed of millions of axons organized into fascicles and bundles. Upon macroscopic examination of sections of the brain, it is difficult to discern the orientation of the fibers. The same is true for conventional imaging modalities. However, recent advancements in magnetic resonance imaging (MRI) make such task possible in a live subject. By sensitizing an otherwise typical MRI sequence to the diffusion of water molecules it is possible to measure their diffusion coefficient in a given direction1. Normally, the axonal membrane and myelin sheaths pose barriers to the movement of water molecules and, thus, they diffuse preferentially along the axon2. Therefore, the direction of white matter bundles can be elucidated by determining the principal diffusivity of water. The three-dimensional representation of the diffusion coefficient can be given by a tensor and its mathematical decomposition provides the direction of the tracts3; this MRI technique is known as diffusion tensor imaging (DTI). By connecting the information acquired with DTI, three-dimensional depictions of white matter fascicles are obtained4. The virtual dissection of white matter bundles is rapidly becoming a valuable tool in clinical research.
Our journey begins with a transverse section of tightly packed axons as seen through light microscopy. Although represented as a two-dimensional "slice", we see that these axons in fact resemble tubes. A simulation of water molecules diffusing randomly inside the axons demonstrates how the membranes and myelin hinder their movement across them and shows the preferred diffusion direction --along the axons. The tracts depicted through DTI slowly blend in and we ride along with them. As we zoom out even more, we realize that it is a portion of the corpus callosum connecting the two sides of the brain we were traveling on and the great difference in relative scale of the individual axons becomes evident. The surface of the brain is then shown, as well as the rest of the white matter bundles--a big, apparently chaotic tangle of wires. Finally, the skin covers the brain.
With the exception of the simulated water molecules, all the data presented in the animation is obtained through microscopy and MRI. Computer algorithms for the extraction of the cerebral structures and a custom-built graphics engine make our journey through the brain's anatomy possible in a living person.
Micrograph courtesy of Dr. Christian Beaulieu, University of Alberta.
Music by Mario Mattioli.
References:
1. Stejskal, E.O., et al., J. Chem. Phys., 1965. 42:
2. Beaulieu, C., NMR Biomed., 2002. 15:435-55.
3. Basser, P.J., et al., J. Magn. Reson. B, 1994. 103:247-54.
4. Mori, S., et al., NMR Biomed., 2002. 15:468-80.
Focal seizures (also called partial seizures [citation needed] and localized seizures) are seizures which affect initially only one hemisphere of the brain. [citation needed] The brain is divided into two hemispheres, each consisting of four lobes – the frontal, temporal, parietal and occipital lobes.
atrial septal defect (ASD) is a hole in the wall between the two upper chambers of your heart (atria). The condition is present from birth (congenital). Small atrial septal defects may close on their own during infancy or early childhood. Large and long-standing atrial septal defects can damage your heart and lungs. Small defects may never cause a problem and may be found incidentally. An adult who has had an undetected atrial septal defect for decades may have a shortened life span from heart failure or high blood pressure that affects the arteries in the lungs (pulmonary hypertension). Surgery may be necessary to repair atrial septal defects to prevent complications
A little venom is drawn into a syringe. ... The quick coagulation or blood clotting caused by the Russell's viper venom is of particular interest to scientists — there's a lot of research into how it might be used in medicine. But this effect is only present in healthy blood.
A peak flow meter is an inexpensive, portable, handheld device for those with asthma that is used to measure how well air moves out of your lungs. Measuring your peak flow using this meter is an important part of managing your asthma symptoms and preventing an asthma attack.
Pulmonary fibrosis is a condition in which the tissue deep in your lungs becomes scarred over time. This tissue gets thick and stiff. That makes it hard for you to catch your breath, and your blood may not get enough oxygen. Causes of pulmonary fibrosis include environmental pollutants, some medicines, some connective tissue diseases, and interstitial lung disease. Interstitial lung disease is the name for a large group of diseases that inflame or scar the lungs. In most cases, the cause cannot be found. This is called idiopathic pulmonary fibrosis
This medical animation shows laparoscopically assisted gallbladder removal surgery, or cholecystectomy. The animation begins by showing the normal anatomy of the liver and gallbladder. Over time, gallstones form within the gallbladder, blocking the cystic duct, and causing the gallbladder to become enlarged and inflamed. The procedure, sometimes called a "lap-chole", begins with the insertion of four trocar devices, which allow the physician to see inside the abdomen without making a large incision. Air is added to the abdominal cavity to make it easier to see the gall bladder. Next, we see a view through the laparascope, showing two surgical instruments grasping the gallbladder while a third severs the cystic duct. After the gallbladder is removed, the camera pans around to show that the cystic artery and vein, have already been clipped to prevent bleeding.
Item #ANIM026
Pinch air out of the tip of the condom. Unroll condom all the way down the penis. After sex but before pulling out, hold the condom at the base. Then pull out, while holding the condom in place. Carefully remove the condom and throw it in the trash.
A leg ulcer is simply a break in the skin of the leg, which allows air and bacteria to get into the underlying tissue. This is usually caused by an injury, often a minor one that breaks the skin. In most people such an injury will heal up without difficulty within a week or two. However, when there is an underlying problem the skin does not heal and the area of breakdown can increase in size. This is a chronic leg ulcer.