Trigger-shaped finger

The hammer finger is a flexion contracture in the distal interphalangeal joint of the finger. It occurs when the extensor digitorum longus tendon is torn from the base of the nail phalanx.

With this damage, the normal functioning of the extensor finger is disrupted. The result is constant flexion at the distal interphalangeal joint. The finger takes on a characteristic trigger-like shape, hence the name of the deformity.

A trigger-shaped deformity of the finger leads to disruption of its function and difficulty in performing small and precise movements with the hand. To restore the function of the finger, surgical treatment is necessary - suturing the torn extensor tendon to the nail phalanx.

A trigger-shaped finger is a type of pathological condition that is characterized by special anatomical features of the structure of the human hand. It can be unilateral or bilateral. In most cases, only the index or only the middle fingers of the hand are affected. As a rule, disability is not assigned. However, if due to pathology a person cannot care for himself or his physical work has to be significantly limited, he is assigned light labor of the third degree. If you experience obvious pain, do not hesitate to ask for a referral to an MSE, and it is better to consult an orthopedic surgeon about the severity of the work.