The middle-ring web space and ring-small web space are the most commonly involved. Usually we wait until at least 1 year and sometimes up to 2 years before releasing the middle -ring web space, because there is no difference in length of the 2 fingers and there is less chance of the webbing recurring. For ring-small web space, watch for any flexion of the shorter small finger. If so, may need to release between 6 months and 1 year. If the thumb is involved, may need to release between 3-6 months.
Neil Jones, MD