Sprained thumb: Treatment, recovery, and symptoms - Extended thumb
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A sprained thumb occurs when the ligaments that support the thumb stretch beyond their limits or tear. Most thumb sprains involve the ulnar collateral ligament, which is located on the inside of the knuckle joint. Treatment for a sprained thumb usually involves wearing a splint or. This is a narrowing of the flexor tendon sheath which causes a clicking or popping sensation on attempted extension of the thumb. Flexion is.