$Unique_ID{BRK00442} $Pretitle{} $Title{"Runner's Knee" After Long Periods of Driving} $Subject{runner's knee overuse pain Ill Defined Symptoms symptom Musculoskeletal Connective Tissue tissues weakness weak muscle muscles thigh vastus lateralis overused chondromalacia patellae alignment patella kneecap stimulator} $Volume{N-17, M-17} $Log{ Muscles and Tendons of the Knee*0006201.scf Chondromalacia Patellae*0006202.scf Anatomy of the Ankle and Knee*0016901.scf} Copyright (c) 1991-92,1993 Tribune Media Services, Inc. "Runner's Knee" After Long Periods of Driving ------------------------------------------------------------------------------ QUESTION: I am a salesman, spending long periods driving through my territory. Lately, after such a drive, I experience a piercing pain around my left knee when I exit my car. After a careful exam, my doctor called this a "runner's knee" despite the fact that I do not run or jog and only play tennis on a rather irregular basis. Is it possible for you to validate my physician's diagnosis? ------------------------------------------------------------------------------ ANSWER: I must assume your physician ran all the necessary tests and x-rays in addition to the careful examination you mention before making this diagnosis. If I am correct he probably also discussed some muscle weakness with you, for runner's knee is a form of anterior knee pain seen frequently in athletes that causes the type of pain you describe, in which there is a weakening of one of the muscles of the thigh (vastus lateralis). It falls into the category of overuse syndromes, but many types of conditions are grouped together and the rather inaccurate name of chondromalacia patellae is applied to them all. I know of your complaint as the "theatre symptom," as it occurs as well after long periods of sitting with the knee flexed at movies or concerts. Sports physicians believe the pain arises from the imbalance in the alignment of the patella (kneecap) because the inner thigh muscle is too weak to keep the cap in its proper place. A series of special exercises are in order, or the use of a muscle stimulator to get this muscle back in shape. If both your doctor and I am correct, the condition should improve in two or three months. ---------------- The material contained here is "FOR INFORMATION ONLY" and should not replace the counsel and advice of your personal physician. Promptly consulting your doctor is the best path to a quick and successful resolution of any medical problem.