Abstract
The supracondyloid process of the human humerus is an anomalous thorn-shaped bony projection, ranging in size from a small tubercle to several centimeters in length. It originates from the anteromedial surface of the distal end of the shaft, from 5 to 7 cm. proximal to the medial epicondyle, and extends distally, medially, and anteriorly to end in a roughened point from which a dense fibrous band continues to the medial epicondyle. This fibrous band is sometimes sufficiently calcified to cast a shadow on a roentgenogram. Kohler (1) cites two cases of complete ossification of the band with the production of a true supracondylar foramen, in man. The process itself serves as a point of insertion for a persistent lower portion of the coracobrachialis muscle and as an anomalous origin for a portion of the pronator teres muscle. Through the partial foramen created by the hooked course of the process, its associated fibrous band, and the shaft of the humerus, pass the median nerve and the brachial artery or a la...
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