ORTHOPEDICS + SPORTS MEDICINE
Trigger Finger Release
Releasing the tendon sheath so the finger glides smoothly again, without catching or locking.
A finger that catches or locks can turn ordinary movements, such as holding a coffee cup, fastening clothing, or opening a container, into painful and frustrating tasks. This occurs when the flexor tendon meets resistance at the base of the finger and can no longer move smoothly through its surrounding pulley. Trigger finger release opens this narrowed passage to address the mechanical source of the catching.
Sforzo | Dillingham | Stewart Orthopedics + Sports Medicine treats trigger finger according to how much it affects the patient’s motion and daily hand use. When splinting, activity changes, or injections are no longer enough, a surgical release may offer a more direct solution while preserving the structures that support normal finger movement.
Tendons and Pulleys of the Finger
Flexor tendons are cord-like structures that connect muscles in the forearm to the bones of the fingers and thumb. When the forearm muscles contract, these tendons pull the fingers inward and allow the hand to form a fist.
Each flexor tendon travels through a protective sheath and a series of small bands called pulleys. The pulleys keep the tendon close to the bone as the finger moves. The A1 pulley, located in the palm at the base of the finger, is most commonly involved in trigger finger.
When the tendon or A1 pulley becomes thickened, the available space becomes too narrow for smooth movement. The tendon may catch as it passes through the opening, producing a pop or snap. In more advanced cases, the finger can become stuck in a bent position and may need to be straightened with the opposite hand.
Symptoms That May Affect Hand Function
Trigger finger can involve any finger, although it frequently affects the thumb and ring finger. More than one finger may be involved, and symptoms can occur in either hand.
Common symptoms include:
- Pain or tenderness at the base of the finger
- A small, sensitive lump in the palm
- Clicking or popping with movement
- Stiffness that is worse in the morning
- Difficulty fully straightening the finger
- A finger that temporarily or continuously locks
Symptoms may initially improve as the hand becomes active during the day. As the condition progresses, catching can become more painful and occur more often.
When Is Trigger Finger Release Recommended?
Many patients begin with nonsurgical treatment. Resting the hand, reducing repetitive gripping, wearing a splint, and performing gentle stretches may help decrease irritation. Medication can be used to manage discomfort, while a corticosteroid injection may reduce inflammation around the tendon.
Trigger finger release may be considered when these treatments do not provide lasting improvement. Surgery may also be appropriate when the finger repeatedly locks, hand function has become limited, or the finger remains fixed in a bent position.
A hand specialist can usually diagnose trigger finger through a physical examination. The location of tenderness and the movement of the affected finger often provide enough information to identify the condition. X-rays and advanced imaging are not routinely required unless another source of pain is suspected.
How Trigger Finger Release Is Performed
Trigger finger release is usually completed as an outpatient procedure. The hand is numbed, and sedation may be used depending on the surgical plan and the patient’s needs.
The surgeon makes a small incision in the palm near the base of the affected finger. The A1 pulley is carefully opened while protecting the flexor tendon, nerves, and blood vessels. Once the pulley has been released, the tendon has more room to glide through the sheath.
The surgeon may move the finger during the procedure to confirm that the catching has been corrected. The incision is then closed and covered with a dressing. Opening the A1 pulley does not normally interfere with finger function because the remaining pulleys continue to guide and support the tendon.
In selected cases, the pulley may be released through a needle instead of an incision. The recommended technique depends on the affected finger, the surrounding anatomy, previous treatment, and the surgeon’s assessment.
Recovery and Return to Hand Use
Finger movement is generally encouraged soon after the procedure. Early motion helps maintain flexibility and allows the tendon to begin gliding through the newly opened space.
Patients can expect some tenderness, swelling, and stiffness around the incision. Elevating the hand can help manage swelling during the first part of recovery. The surgical incision typically heals within several weeks, although tenderness or swelling in the palm may take longer to settle.
The timing of returning to work depends on the hand that was treated and the demands of the patient’s occupation. Light tasks may resume before forceful gripping, lifting, or repetitive hand use. Patients should follow their surgeon’s instructions rather than increasing activity based only on how the incision looks.
Is Hand Therapy Needed?
Many people do not need formal hand therapy after a trigger finger release. It is usually recommended when the finger was locked for a long period before surgery, when stiffness persists, or when full bend and straightening are slow to return.
Rehabilitation may focus on:
- Early active finger motion
- Scar management
- Swelling control
- Gradual return to gripping
When to See a Hand Specialist
A hand specialist should evaluate a finger that regularly catches, becomes painful with gripping, or must be manually straightened. Earlier assessment is especially important when the finger remains locked, stiffness is increasing, or symptoms are interfering with work and routine activities.
Other conditions, including arthritis and tendon injuries, can also limit finger movement. An examination can determine whether the problem involves the flexor tendon and A1 pulley or whether another condition needs to be addressed.
Summary
Trigger finger release directly addresses the restricted space that prevents the flexor tendon from moving normally. By opening the A1 pulley, the procedure allows the tendon to travel more freely as the finger bends and straightens.
The hand specialists at Sforzo | Dillingham | Stewart can determine whether continued nonsurgical care or trigger finger release is the appropriate next step based on the patient’s symptoms, examination, and functional needs.