A finger that catches, clicks, or locks when you try to straighten it is not something most people expect to need orthopaedic care for. But trigger finger, while it sounds minor, can become genuinely disabling if left untreated. The good news is that it responds well to treatment, particularly when caught early, and surgery, when it is needed, is one of the most straightforward and effective procedures in hand surgery.
This article explains what trigger finger is, why it happens, what your treatment options are, and how Dr George Oduah helps patients across Mbombela, Nelspruit, and Mpumalanga get their hand function back.
What Is Trigger Finger?
Trigger finger, known medically as stenosing tenosynovitis, is a condition in which one of the finger’s flexor tendons becomes inflamed and swollen, making it difficult for the tendon to glide smoothly through the fibrous sheath that surrounds it.
To understand why this causes problems, it helps to picture how a finger bends. Flexor tendons run from the forearm muscles through the wrist and palm, passing through a series of narrow tunnels called tendon sheaths. These sheaths hold the tendons close to the finger bones and guide them as the finger bends and straightens. When the tendon becomes thickened or the sheath becomes inflamed and narrowed, the tendon can no longer pass through freely. It catches, clicks, or sticks at a tight spot, particularly at the base of the finger near the palm.
In milder cases, the finger clicks and then frees. In more advanced cases, the finger can lock in a bent position and require the other hand to straighten it. In severe cases, the finger may be locked and impossible to move without intervention.
Who Gets Trigger Finger?
Trigger finger is more common than most people realise. It occurs most frequently in adults between 40 and 60, and is more common in women than men. Certain conditions increase the risk significantly.
Diabetes. People with diabetes are considerably more prone to trigger finger and often develop it in multiple fingers or at a younger age than the general population.
Rheumatoid arthritis. Inflammatory arthritis causes synovial inflammation that affects the tendon sheaths, making trigger finger more common in this group.
Hypothyroidism. Thyroid conditions are associated with an increased risk of trigger finger, though the mechanism is not fully understood.
Repetitive gripping activities. Prolonged or repetitive use of tools, machinery, or instruments that involve sustained gripping can contribute to tendon sheath irritation. Farmers, mechanics, musicians, and manual workers in the Mpumalanga region frequently present with this condition.
It can also occur without any identifiable risk factor, simply as a result of the normal wear and tear of daily hand use over time.
What Are the Symptoms of Trigger Finger?
The symptoms of trigger finger develop gradually and tend to worsen if left unaddressed.
In the early stages:
- A mild catching or clicking sensation when bending or straightening the affected finger
- Stiffness in the finger, particularly in the morning
- Tenderness or a small nodule felt at the base of the finger in the palm, at the level where the finger meets the hand
As the condition progresses:
- The clicking becomes more pronounced and more painful
- The finger begins to lock intermittently in a bent position before releasing
- The release may come suddenly and forcefully, which can be painful
- Gripping objects, opening jars, or fastening buttons becomes difficult or painful
In more advanced cases:
- The finger locks fully in a flexed position and cannot be straightened without external force
- In severe cases, the finger becomes fixed and cannot be moved at all
Any finger can be affected, though the ring finger and thumb are the most commonly involved. It is not unusual for more than one finger to be affected, particularly in patients with diabetes.
How Is Trigger Finger Diagnosed?
Trigger finger is primarily a clinical diagnosis, meaning a thorough physical examination by an experienced hand surgeon is usually sufficient to confirm it. Dr George Oduah will examine the finger for tenderness at the A1 pulley, assess the range of motion, reproduce the triggering or locking, and feel for any thickening or nodule along the tendon.
In most cases, no imaging is required. Occasionally an ultrasound scan is helpful to assess the degree of tendon sheath thickening or to exclude other conditions such as a ganglion cyst or arthritic change in the finger joints.
A clear diagnosis also includes understanding which fingers are affected, how severe the triggering is, and whether any underlying conditions such as diabetes or rheumatoid arthritis are present, as these influence both the treatment approach and the expected outcome.
What Are the Treatment Options for Trigger Finger?
Treatment is matched to the severity of the condition and the patient’s circumstances. There is a clear progression from conservative to more definitive options.
Activity Modification and Splinting
In mild cases, particularly early in the condition, resting the affected finger and avoiding the repetitive activities that aggravate it can settle symptoms. A finger splint that holds the finger in a slightly extended position overnight reduces the tendon’s tendency to lock in the morning. This is most useful in mild, early-stage trigger finger and in patients for whom other treatments need to be deferred.
Corticosteroid Injection
A corticosteroid injection into the tendon sheath at the site of the triggering is the most effective non-surgical treatment for trigger finger. The injection reduces inflammation in the sheath, allowing the tendon to glide more freely.
A single injection resolves symptoms in a significant proportion of patients. In others, a second injection provides additional benefit. Injections are more effective in patients who have had symptoms for a shorter time, in those without diabetes, and in milder grades of the condition.
Dr George Oduah performs corticosteroid injections at his practice in Sonheuwel, Mbombela. The procedure is performed with precision, often using ultrasound guidance to confirm accurate placement. It is well tolerated and patients can return to normal activities the same day in most cases.
It is important to be realistic about injections. They are not a permanent cure for everyone. If symptoms recur after two injections, surgery is usually the most appropriate next step.
Surgery: Trigger Finger Release
Trigger finger release is a highly effective procedure with excellent outcomes and a low complication rate. It is performed as a day case, meaning patients go home the same day.
The procedure involves a small incision at the base of the affected finger in the palm. The tight A1 pulley, the section of the tendon sheath that is constricting the tendon, is carefully divided. Once the pulley is released, the tendon can glide freely and the triggering resolves immediately.
The procedure takes approximately 15 to 20 minutes and is performed under local anaesthetic. There is no need for a general anaesthetic in most cases.
Surgery is recommended when:
- The finger is locked and cannot be straightened
- Conservative treatment and injections have not provided adequate or lasting relief
- Symptoms are severe and significantly limiting hand function
- The patient has diabetes or other conditions that reduce the likelihood of a sustained response to injections
What Is Recovery Like After Trigger Finger Surgery?
Recovery from trigger finger release is typically straightforward and faster than most patients expect.
Most patients experience immediate relief from the locking sensation. The finger may feel tender around the incision for two to three weeks, but hand function returns progressively. Most people are able to use the hand for light activities within a few days and return to normal daily activities within two to four weeks.
For patients whose work involves heavy manual tasks, a slightly longer recovery of four to six weeks before returning to full strength activities is advisable.
Physiotherapy is not always required after trigger finger release, but it is recommended for patients who have had significant stiffness, those who have multiple fingers released, or those who are returning to demanding hand use.
Dr George Oduah performs trigger finger surgery at Mediclinic Nelspruit in Sonheuwel and at Kiaat Private Hospital in Nelspruit, both of which offer excellent day surgery facilities for procedures of this type.
Frequently Asked Questions About Trigger Finger
Can trigger finger resolve on its own without treatment? In mild cases, particularly when the contributing activity is identified and reduced, symptoms can improve. However, trigger finger does not typically resolve completely without treatment once it has progressed beyond the earliest stage. Left untreated, it tends to worsen over time, and a finger that locks repeatedly can develop permanent stiffness.
Is trigger finger release surgery painful? The procedure is performed under local anaesthetic so there is no pain during the surgery itself. Post-operative discomfort is usually mild to moderate for the first few days and is well managed with standard pain relief. Most patients are pleasantly surprised by how manageable the recovery is.
Will the trigger finger come back after surgery? Recurrence after trigger finger release surgery is uncommon. The procedure is considered highly reliable when performed correctly. Recurrence rates are low, and the long-term outcomes are consistently good.
Can I have more than one trigger finger treated at the same time? Yes. It is possible to release multiple trigger fingers in a single procedure. Dr Oduah will discuss whether this is appropriate based on your specific situation and which fingers are affected.
Does medical aid cover trigger finger surgery in South Africa? Most medical aid schemes cover trigger finger release surgery as a medically necessary procedure. Pre-authorisation is required before the procedure. The practice can assist with the documentation needed for your medical aid submission.
When to See Dr George Oduah in Mbombela
Trigger finger rarely improves significantly without treatment once it has moved beyond the mildest stage. If your finger is clicking, locking, or causing you pain that interferes with daily tasks, an assessment gives you a clear picture of how advanced the condition is and which treatment option is right for you.
The earlier trigger finger is addressed, the more likely it is that a simple injection will resolve it. Waiting until the finger is locked or severely stiff limits your options and can lead to a longer recovery.
Dr George Oduah offers specialist hand and wrist consultations at his practice in Sonheuwel, Mbombela, and provides a full range of non-surgical and surgical treatment for trigger finger and other hand conditions.
