The number of people who face early knee osteoarthritis symptoms after ACL surgery is staggering, but not much is being done to address it.

Currently in development for implants, a new lab-made cartilage gel may be better than the real thing for relief from stiff, achy knees.

A digital human offers clues on how to use different muscles to ease pressure and protect your knees while you walk.

"Tobacco use history was associated with the highest rate for severe complications, including above-knee amputation," says James Keeney.

A close look at ACL tears in the NBA shows that basketball players who drive to the hoop more often have a higher risk of knee injury.

Weak quadriceps after ACL surgery isn't only the result of muscle atrophy. New research uncovers a second cause.

Even low levels of physical therapy may lower the likelihood of long-term opioid use after total knee replacement, a study of 67,000 patient records shows.

A new study with mice links altered gait after surgery for an ACL injury with knee osteoarthritis for the first time.

A program that monitored hip and knee replacement patients after they left the hospital resulted in a fourfold decline in those who had to return.

A gene called FoxO1 reduces osteoarthritis symptoms in mice. If the same is true in people, it could prevent millions of knee and hip replacement surgeries.