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Ectrodactyly, split hand, or cleft hand [1] (from Ancient Greek ἔκτρωμα (ektroma) 'miscarriage' and δάκτυλος (daktylos) 'finger') [2] involves the deficiency or absence of one or more central digits of the hand or foot and is also known as split hand/split foot malformation (SHFM). [3]
Thumb hypoplasia is a spectrum of congenital abnormalities of the thumb varying from small defects to complete absence of the thumb. [1] It can be isolated, when only the thumb is affected, and in 60% of the cases [ 2 ] it is associated with radial dysplasia [ 1 ] (or radial club, radius dysplasia, longitudinal radial deficiency).
This type of procedure is used for all Wassel types of polydactyly and is the most commonly used technique. It is recommended in all cases of thumb duplication with a hypoplastic, less-functional thumb. Otherwise, one could consider the Bilhaut-Cloquet. The ulnar thumb is preferably preserved as it is the more developed one in most cases. [12]
One class of congenital limb deformities, limb reduction defects, occurs when one or more limbs are undersized or missing parts. The prevalence of these defects in the United States is approximately 1 in 1900 births. [2] This category includes amelia, ectrodactyly, radial dysplasia, and phocomelia among others. These defects are more likely to ...
The most global format is the classification of McCarrol, which divides the congenital clasped thumbs into two groups. Group I includes the supple clasped thumb, when the thumb is only passively correctable. While complex clasped thumbs, thumbs which cannot be moved neither passively or actively, belong to group II. [citation needed]
Clinodactyly is a medical term describing the curvature of a digit (a finger or toe) in the plane of the palm, most commonly the fifth finger (the "little finger") towards the adjacent fourth finger (the "ring finger").
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Radial club hand with thumb missing (ectrodactyly) Radial dysplasia , also known as radial club hand or radial longitudinal deficiency , is a congenital difference occurring in a longitudinal direction resulting in radial deviation of the wrist and shortening of the forearm.