Abstract:

Objective　 To provide anatomical basis for the treatment of humeral supracondylar fracture of children with the anterior transposition of ulnar nerve.　Methods　20 elbow specimens from 10 children cadaveric upper limbs (aged from 6 to 8) were used in this study. Anatomic features of ulnar nerve and its accompanying vessels, and ulnar groove were explored, while, anatomic position of the nerve after anterior transposition were analyzed.　Results　Ulnar nerve was supplied mainly by superior ulnar collteral artery, however, this nerve was nourished mainly by ulnar artery when it passed through the foream. Ulnar nerve was always accompanied by superior and inferior ulnar collteral arteries, and the posterior branch of ulnar recurrent artery during its course, which would not be interfered during the approach of anterior transposition of ulnar nerve. Transferred ulnar nerve located on the soft tissue bed, easy to be slided, and escaped from the drag injury caused by flexion movement of elbow joint.　Conclusions　Anterior transpostion of the ulnar nerve is favorable for blood supply of the nerve, and the slide movement.

Key words: Children, Elbow joint, Ulnar nerve, Anterior transposition, Applied anatomy