A medial collateral ligament (MCL) tear affects the inside of the knee. The tough MCL ligament fibers that connect the end of the femur (thigh bone) and the top of the tibia (shin bone) can tear, ...

Q I was on the couch with my right leg on an ottoman when our black Lab rammed into the inside of my knee. The next day, it really hurt to extend or turn my knee. (Not painful to the touch, though, ...

Is it common for a professional athlete to have the option of returning just 10 days after a medial collateral ligament sprain? It seems unlikely that he'll suit up as soon as Sunday, and that it's ...

Vikings left tackle Christian Darrisaw underwent successful surgery on Monday, the team announced, to repair the torn anterior cruciate ligament and medial collateral ligament in his left knee. Now ...

Q I was on the couch with my right leg on an ottoman when our black Lab rammed into the inside of my knee. The next day, it really hurt to extend or turn my knee. It felt better in a week, but I want ...