Chondromalacia patella, also known as runner's knee, is a knee condition that can cause pain and grinding when the knee is flexed. It's due to the breakdown in the cartilage on the undersurface of the kneecap (patella) that causes bones to rub against each other. Overuse (especially from running or cycling), trauma, such as a fracture, or a misalignment of the kneecap and femur can all cause chondromalacia.
Next-generation DNA sequencing (NGS) techniques show the presence of bacterial DNA in surgical specimens of hip and knee arthritis, from patients undergoing first-time total joint arthroplasty, reports a study in the Journal of Bone and Joint Surgery.
You worked up a sweat playing basketball, and now your knees are screaming in pain. Or maybe your knees are in agony just from sitting all day in front of your computer. If one or both of your knees ache after too much sitting, running, jumping or squatting, you may have patellofemoral pain (PFPS).
Bone marrow edema (BME) is when normal fatty bone marrow—the spongy tissue in the center of bones—is replaced with a watery mix of fluid and blood. Also known as a bone marrow lesion, BME occurs when arthritis, an injury, or a fracture damages the normal bone structure.