Trigger finger / thumb is caused by a thickening / nodule on the tendon, which gets caught as the tendon moves through a tunnel in the finger / thumb. It can result in a snapping / popping sensation with associated pain when the finger is bent or straightened. The finger / thumb often gets stuck in a bent position and can only be straightened by the patient using their other hand to force it straight.
The exact cause of trigger finger / thumb is not fully understood. Rest from any aggravating activity, splinting and cortisone injection are the most appropriate treatment options. Cortisone injections are successful in 9 out of 10 people. A second injection is sometimes required to completely resolve the problem. It often takes 2 weeks following the injection for the pain and snapping of the tendon to settle. Splinting or avoiding gripping for 2 weeks following the injection improves the chance of success.
Please contact us for more information or to book an appointment at any one of our occupational health clinics.
Our admin hours are 08:30 to 17:00. Outside of these hours you can send us a message or request a callback.
The Independent General Practice