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3 Types of Tendon injuries in the hand

Writer's picture: Becca CatlinBecca Catlin

Tenosynovitis is inflammation in the sheath that surrounds flexor tendons of the hand. This sheath provides nutritional support and improves gliding the tendons by reducing friction. If the tendon sheath becomes inflamed the fingers often feel swollen, feel stiff and limited when bending the fingers, are tender to touch, and typically hurts when the finger flexor muscles are contracted against resistance. There may be puffiness and overt swelling on the fingers or palm of the hand.


A tendonopathy is a chronic situation and related to overuse. The tendon takes on a degenerative profile and does not show classic signs of inflammation. However, the health and tensile strength of the tendon is compromised. Pain may not be eliminated with rest alone as the tendon unhealthy and needs specific training to promote a regenerative response.


A lumbrical muscle strain is often due to micro trauma or tears to the Lumbrical muscles and its attachment to the flexor tendon of the hand. These are small muscles that originate from the flexor tendons themselves and end in the tendinous hood of the extensor tendons. Their job is to flex base of the finger and extend the tip of the finger. Pain will be in the palm of the hand.




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