Time to Resolution of Triggering after Steroid Injection for First Presentation Trigger Digits

Background: Steroid injection is a proven treatment for trigger digits. The time taken for resolution of triggering following an injection is a question often asked by patients and one that has not been adequately addressed in existing literature. The aim of this study was to determine the time taken for triggering to resolve after a single steroid injection in patients presenting for the first time with a trigger digit. Methods: A prospective study was conducted in patients with first presentation of a grade II or grade III trigger digit(s) that received a steroid injection. Data with regards to age, gender, digit(s) involved, duration of symptoms, trigger grade, and presence of diabetes were collected. They were given a stamped addressed postcard with instructions to fill in the date that the triggering resolved and mail the postcard back to us. If the postcard was not received at three weeks, we contacted the patient by telephone to ask for the date of resolution of trigger. Results: 56 patients with 66 trigger digits were included in the study. 52 out of 66 digits (79%) had resolution of the trigger at one month. The mean duration for resolution of trigger was 8.8 days (range 1-30 days). Conclusions: Patients can be counselled that a steroid injection is effective in resolving the trigger in 79% of trigger digits presenting for the first time and that the mean time taken for resolution of triggering is 8.8 days. It is recommended to wait for at least one month before considering another injection or alternative treatments.