FROM OUR EXPERTS
Injury to the anterior cruciate ligament (ACL) in the knee is really more than just a torn ligament. Along with damage to the ligament comes weakness of the quadriceps muscle. The quadriceps is the large muscle that comes down over the front of the thigh from the hip to the knee. Scientists are trying to unlock the puzzle of this muscle weakness. The muscle isn't wasting away, a condition called atrophy . So what could be causing this weakness? Is there some way that the ligament signals the muscle to contract in a normal knee? What other changes occur after a ligament is torn or damaged that could affect the muscle? Researchers at the University of Tokyo in Japan set out to answer these questions. They found signals that form a complete loop from knee joint to ligament to muscle. This is called afferent feedback . Before the experiment, scientists thought that damage to the ACL alters this loop. Decreased signals to the muscle cause the weakness. To prove this, they used vibration to the ...
My husband has been having these stabbing pains on the right side of his head like behind his eye. This comes very sudden and only lasts a few seconds, but is very painful. This has been goin on for 2 weeks. It also is making the vision in his right eye blurry. He has been to the er and they just give him pain meds that don\'t work. He is a truck driver so he can\'t take to much that makes him sleepy. What could the problem be? Angela.
It's time for your husband to see his own doctor and get these headache checked out. They could be ice pick headaches, but the blurry vision isn't common with ice pick headaches, and the only person who can safely give your husband a diagnosis and tell him what to do about them is a doctor who can review his medical history, discuss his symptoms, and examine him in person. You can find some information about ice pick headaches in Ice Pick Heada...
An "enigma" is something that's hard to understand, something puzzling. Thigh pain after a surgery for a new hip joint is one of such puzzle. This enigmatic pain can occur when a cementless implant is used. Doctors report several possible causes. Sometimes the implant is too stiff for the bone. It doesn't "bend" enough so that stress builds up between the bone and the implant. The shape and size of the implant are also important. There is a greater chance of thigh pain with a larger implant. The quality of the patient's bone is also important. Poor bone structure from osteoporosis results in a "less stiff" bone. The zone between the implant and weaker bone may be mismatched. Thigh pain can be the result. This pain is usually described as a dull ache. There is no fever and no history of trauma or illness. The patient often points to the spot where the tip of the implant is located. Some patients report only mild discomfort. Others walk with a limp and need to use a cane or walker. The p...
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