Kenneth J. Koval MD


Diffuse Idiopathic Skeletal Hyperostosis (DISH)

Diffuse idiopathic skeletal hyperostosis (DISH) is a disorder in which there is bone growth in the ligaments, particularly where they attach to the bones of the spine. You may have no symptoms. Or you could have minor spinal stiffness and pain. Over time your spine will stiffen and your vertebrae may fuse together.

Calcific Tendinitis

Calcific tendinitis (also called calcific tendinopathy) occurs when calcium builds up in the tendons. Tissue tears and natural tissue breakdown (degenerative changes) increase the chance of these deposits. Calcific tendinitis is most common in the shoulders. But it may occur in the elbows, wrists, hands, hips, knees, or…

Tendon Injury (Tendinopathy)

Is this topic for you? The heel and elbow joints are common sites of tendon injuries. For more information about tendon injuries in these areas, see the topics Achilles Tendon Problems and Tennis Elbow. This topic does not address severe tendon tears or ruptures. To help you assess a tendon injury, see the topic…

Hip Fractures: What Increases Your Risk

In older adults, hip fractures are usually caused by a fall. Even a slight fall can sometimes cause a fracture in a weakened hipbone. Children and young adults are more likely to break a hip because of a bike or car accident or a sports injury. Falls cause more fractures—including hip fractures—as people age because…

Shoulder Replacement Surgery

Covers shoulder surgery to replace the ends of bones in a damaged joint. Includes what to expect after surgery, continued recovery, and living with a shoulder replacement. Looks at why it is done, how well it works, and the risks of surgery.