Total knee replacement (TKR) surgery can do wonders for an arthritic or damaged knee. But TKR is hard on the muscles around the knee. Surgery and the down time after surgery often cause these muscles to lose strength. Weakness is especially bad in the thigh muscles. Much of rehab after TKR involves strengthening the weak muscles around the knee. Electric muscle stimulation (EMS) can help muscles gain strength. It seems odd that simply passing an electrical current through a muscle can build it up, but it's true. EMS is sometimes used to regain strength after spine injuries. EMS has also been shown to help athletes build muscle. These authors tested using EMS in the thigh muscles after TKR. Fifteen patients were given EMS treatments after TKR. They were hooked up to EMS for four hours a day over six weeks. They also had the usual physical therapy. A second group of 15 patients received just the usual therapy. Both groups were checked for walking speed, walking effort, and knee function b...
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 ...
I am 52, oxygen. asthema, and severe copd. I have started to have very sharp very painful stabbing pain on left side of my head temple area, almost above the ear. it stabs very quickly without warning. for a few seconds to a minute, then goes away for about 10 mintues and then it happens again. It started this morning. what can it be? Vonnie.
What you're describing could be ice pick headaches. You can find more information in Ice Pick Headaches - The Basics . That said, nobody can confirm that via the Internet, so you really should see your doctor about these pains.
Good luck, John Claude Krusz and Teri Robert
To review other questions from our Ask the Clinician Column, browse the Ask the Clinician archives .
If you need help finding a Migraine and headache specialist, visit our listing of Patient Recommended Specialists .
About Ask the Clinician :
Dr. Krusz is a reco...
You should knowAnswers 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.