Types of Syndactyly

1. Simple Syndactyly: condition in which extremities are fused by soft tissues.

2. Complex Syndactyly: condition in which bones of fingers are joined.

3. Complete or Incomplete: skin is joined all through and through, however in incomplete finger tips are free

4. Fenestrated Syndactyly: when there is a gap between skin is know as fenestrated syndactyly

In this patient you see complex syndactyly as two bones are fused see the x ray below

Complex Syndactyly X ray showing fusion of bones of fingers of hands

see the hand of four year old SADIA being operated on 24feb2010, generally syndactyly is treated by plastic surgery, bones are cut skin fusion removed either graft is applied from groin or anterior elbow or simply graftless sundactyly correction is done by mobilising the skin.

Syndactyly hand with dye painted before surgery

and another picture of hand from dorsum side see below

syndactyly hand from back view, dorsum of hand

See the surgical correction of syndactyly in the video below

Complications:

Hairs can grow on graft area

Finger can deviate

Graft darken and become noticable

Complex syndactyly occurs as a part of Apert Syndrome.

Must also read from emedicine about syndactyly and apert syndrome with nice pics.