Sprained thumb: Treatment, recovery, and symptoms - Thumb cmc joint sprain
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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. Consequently, injuries involving the thumb CMC joint, ranging from mild sprains to complete ligament ruptures and joint dislocations, are rare. In most cases.