Trigger Finger Anatomy

The condition you are describing may be trigger finger or trigger thumb and is frequently caused by overuse. Trigger finger is usually caused by swelling of one of the tendons that run along your fingers and thumbs see figures 1 and 2 although the exact reason why this occurs isnt fully understood.

Is Dupuytren Contracture The Same As Trigger Finger Arora

Trigger finger or stenosing tenosynovitis is an inflammatory condition in the fingers or thumb of the hand when the finger will get stuck in a curled position as if squeezing a trigger.

Trigger finger anatomy. Trigger finger is a painful condition that affects one or more of the hands tendons making it difficult to bend the affected finger or thumb. It develops due to repetitive microinjury from frequent flexion extension movements of the fingers. Some examples of activities that might initiate this condition are power washing a deck for several hours using a rivet gun repetitively leash training a dog or opening window latches that have a lot of resistance.

It results from thickening of the flexor tendon within the distal aspect of the palmthis thickening causes abnormal gliding of the tendon within the tendon sheath. It can affect one or more tendons of the hand with most cases occurring spontaneously in otherwise healthy individuals. It has a prevalence of approximately 2 in 100 people and can be associated with other conditions including rheumatoid arthritis amyloidosis and diabetes mellitus.

Trigger finger tf is one of the most common upper limb problems to be encountered in orthopedic practice and is also one of the most common causes of hand pain and disability. The condition is also known as stenosing tenosynovitis the ring finger and thumb are most often affected by trigger finger. Trigger finger stenosing flexor tenosynovitis is a condition in which the finger or thumb click or lock when in flexion preventing a return to extension.

Stenosing tenosynovitis is commonly known as trigger finger. Trigger finger is a type of stenosing tenosynovitis. When pried open the finger will then straighten like a trigger being released.

It develops due to repetitive microinjury from frequent flexion extension movements of the fingers. Trigger finger causes pain stiffness and a sensation of locking or catching when you bend and straighten your finger. Operative surgical debridement and release of the a 1 pulley indications in cases that fail nonoperative treatment.

Trigger fingers are more common with certain medical conditions such as rheumatoid arthritis gout and diabetes. Release of a1 pulley and 1 slip of fds usually ulnar slip indications pediatric trigger finger presents with nottas nodule proximal to a1 pulley flexion contracture and triggering.

Trigger Finger Hand Orthobullets