1Assistant Professor, Dept. of Physiology, Mandya Institute of Medical Sciences, Mandya, Karnataka
2Assistant Professor, Dept. of Anatomy, Sri Siddhartha Medical College, Tumkur, Karnataka
Online published on 23 January, 2014.
Ulnar deficiency, a complex spectrum of postaxial forearm and hand abnormality, is an infrequently encountered, highly variable, reduction defect1. It can be defined as a congenital anomaly characterized by missing or foreshortened upper limb resulting from a disturbance in embryonic development affecting the ulnar side2.
A case unilateral ulnar deficiency in a 36 year old male is presented. This is a typical example of postaxial defect which is rarer, with the ratio of postaxial: preaxial deficiencies being 1:10 and characterized by greater degree of variations than those on the preaxial side and are usually unilateral compared to preaxial deficiencies3. Unlike preaxial deficiencies, different degrees of ulnar hypoplasias are rarely associated with other syndromes4.
Postaxial Type of Defect, Ulnar Deficiency