Classification There are several classifications for cleft hand, but the most used classification is described by Manske and Halikis see table 3. This classification is based on the first web space. The first web space is the space between the thumb and the index finger. Table 3: Classification for cleft hand described by Manske and Halikis Type Description Characteristics I Normal web Thumb web space not narrowed IIA Mildly narrowed web Thumb web space mildly narrowed IIB Severely narrowed web Thumb web space severely narrowed III Syndactylized web Thumb and index rays syndactylized, web space obliterated IV Merged web Index ray suppressed, thumb web space is merged with the cleft V Absent web Thumb elements suppressed, ulnar rays remain, thumb web space no longer present
Ectrodactyly
Clinodactyly
Synpolydactyly
Sclerodactyly
Syndactyly
Camptodactyly
Oligodactyly
Pachydermodactyly