Clinodactyly Treatment and Diagnosis, Because clinodactyly usually causes no symptoms and doesn't severely restrict the use of the affected finger, your child's doctor may not recommend any treatment. Splinting the finger with a neighboring finger to help straighten it isn't recommended. It could worsen the health and growth of the affected finger. Clinodactyly is caused by a developmental defect in the bones of the finger. This defect causes the bone to make a wedge shape instead of a normal rectangle. Clinodactyly can be associated with many syndromes including Down syndrome, Klinefelter syndrome, Turner syndrome, Fanconi anemia, and others.