For decades, hospitals have given babies a vitamin K injection to protect against bleeding. Now, the shot appears to be facing resistance.

Combining structured exercise with intra-articular injections may improve pain and physical function for patients with knee OA, though the quality of evidence is low.

For decades, damaged joint cartilage has been a one-way street toward pain, stiffness, and eventually metal and plastic replacements. Now researchers are uncovering ways to coax the body into ...