Tennis elbow refers to an injury to the outer elbow tendon. Golferâs elbow is an injury to the inner tendon of the elbow. These conditions can also occur with any activity that involves repetitive wrist turning or hand gripping, such as tool use, hand shaking, or twisting movements.endinitis is inflammation of a tendon. Tendons transmit the pull of the muscle to the bone to cause movement. They are found throughout the body, including the hands, wrists, elbows, shoulders, hips, knees, ankles, and feet.