FROM OUR EXPERTS
Most people would be surprised to know that total hip replacements (THRs) have been around since the 1930s. Today's successful use of THRs reflects the many implant changes in design and materials that have taken place since those early attempts. In this article, orthopedic surgeons from the New York University Hospital for Joint Diseases review the history of THRs up to and including today's surface replacement arthroplasty (SRA). SRA is a type of hip replacement that replaces the arthritic surface of the joint. But it removes far less bone than the traditional total hip replacement. Because the hip resurfacing removes less bone, it may be preferable for younger patients who are expected to need a revision (second) hip replacement surgery as they get older and wear out the original implant. The surface replacement arthroplasty (SRA) is done by dislocating the femoral head out of the socket. Special powered instruments are used to shape the bone of the femoral head so that the new meta...
Sometimes even just picking up a piece of paper will cause a “pop” as a spinal disc herniates. The spinal discs are the shock absorbers layered between the spine bones that are stacked like blocks. When a disc herniates, it has bulged outside of its normal boundaries. The result is very painful and can also be very debilitating for months if not years. Here are some facts and solutions to keep in mind about spinal disc herniations.
v Disc Herniations Occur When the Disc Pressure is High: Bending over to pick up a piece of paper does not sound strenuous, but it can be detrimental to a weakened disc. Disc pressure increases anytime the spine is flexed. Eventually, the pressure may get high enough to overcome the resistance of the perimeter barrier that keeps the disc material contained. When the barrier fails, a disc herniation happens. Some people actually feel the “pop”.
Effectively relieving the pain of a disc herniation can be done b...
Spongy degeneration of the brain; Aspartoacylase deficiency
Genetic counseling is recommended for people who want to have children and have a family history of Canavan disease. Counseling should be considered if both parents are of Ashkenazi Jewish descent. For this group, DNA testing can almost always tell whether one or both parents is a carrier.
A diagnosis may be made before the baby is born (prenatal diagnosis) by testing the amniotic fluid .
Rezvani I. Defects in metabolism of amino acids. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF. Nelson Textbook of Pediatrics . 18th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 85.
You should know
Answers to your question are meant to provide general health information but should not replace medical advice you receive from a doctor. No answers should be viewed as a diagnosis or recommended treatment for a condition. Content posted by community members does not necessarily reflect the views of Remedy Health Media, which also reserves the right to remove material deemed inappropriate.