Clinodactyly is defined as an angular deviation of a digit in the coronal plane distal to the metacarpophalangeal joint. This defect causes the bone to make a wedge shape instead of a normal rectangle. Underlapping toes are commonly seen in the adult and pediatric population. Some people with this condition do have crooked bones, but the finger still appears straight like a normal finger. Underlapping toes are seen in both pediatric and adult populations. In this case, the most commonly affected toes are the fourth and fifth ones. Clinodactyly is quite a rare condition and affects about 8-10% of the population. Clinodactyly [1] is a genetic pathological condition in which a child is born with fingers that are curved or bent at an angle. A significant percentage of people with Down syndrome , for example, have clinodactyly. Educational video Camptodactyly of the little finger.Camptodactyly is a fixed flexion deformity at the PIP of the little finger. A special form of underlaping toes is called clinodactyly or congenital curly toes. In the hand of a child with Apert's syndrome, the thumb may have a delta phalanx and may present as clinodactyly. Clinodactyly is a Greek term for "bent digit," and is used to describe a bent finger or even toe. What is clinodactyly and why has my child got it? Clinodactyly tend to be caused by a developmental defect in the bones of the finger. It is actually a rare disorder, affecting 10% or less of the population. The condition is sometimes known as clinodactyly, but this is a broad term that also refers to curled toes, as well as to a number of similar conditions affecting the hands and fingers.. If you have shortened fingers or toes, other members … Clinodactyly can be an inherited condition and may present as a part of an associated syndrome. It typically affects the 5th finger. The exact incidence of this condition is unknown, in part because there is no precise definition of what level of curvature is normal and abnormal. Clinodactyly is an abnormal bending of a finger or the thumb Clinodactyly of the thumb occurs because of an extra triangular phalanx between the proximal and distal phalanx. With clinodactyly, toes three, four, and five on both feet are usually affected. There is a certain category of underlapping toes known as clinodactyly (congenital curly toes). The toes most often involved are the fourth and fifth toes. If you have any further questions or concerns, please speak to the staff member in charge of your care. Clinodactyly in Children This leaflet offers more information about your child’s clinodactyly of the finger or thumb. Brachydactyly is an inherited condition, which makes genetics the main cause. A crooked little finger is also known as, clinodactyly. The main cause of Clinodactyly is the abnormal growth and alignment of the small bones of the finger. Some form of clinodactyly affects either the fingers or the toes of an estimated 10 percent of the population, although in many cases the condition may not be serious enough to … It originates from Greek klinen, “to bend” and dactylos, “a finger.” 1 Clinodactyly is a physical sign, not a disease. Clinodactyly is a descriptive term that refers to a radial angulation at an interphalangeal joint in the radio-ulnar or palmar planes. Clinodactyly is fairly common and follows a familial pattern. Jones 19 suggested the term delta phalanx for this triangular bone, and this term is in general use.