If you've ever carved a turkey, the tendons are the tough bands you cut through to get the drumsticks apart. The most common cause of tendinitis is overuse and repetitive motion from recreational, athletic, or occupational activities. The pain is usually worsened with repetitive motion, but it can also be present at rest. There can also be mild swelling over the tendon. The forearm is placed in supine position, fist is flexed against resistance while forearm is being held down.
Tenderness is felt in the area of the medial epicondyle and flexor pronator tendons.
You try to extend your wrist against resistance. Tenderness is felt along extensor area. Pain or weakness against resistance can be felt if there is involvement of this tendon. Tenderness can be felt just in front of the fibular collateral ligament. Ultrasound evaluation of the tendon with real time machines can give an accurate diagnosis.