Isolated Fracture of Distal Humeral Trochlea

Lee,  Ki Won; Bae,  Joo Yul; Cho,  Hyung Kwon; Won,  Hee Jae

doi:2016.21.3.152

Arch Hand Microsurg > Volume 21(3); 2016 > Article

Case Report

Journal of the Korean Society for Surgery of the Hand 2016;21(3):152-156.
Published online September 30, 2016.
DOI: https://doi.org/10.12790/jkssh.2016.21.3.152

Isolated Fracture of Distal Humeral Trochlea

Ki Won Lee, Joo Yul Bae, Hyung Kwon Cho, Hee Jae Won

Department of Orthopedic Surgery, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea. qwonduf@hanmail.net

Received: 2 March 2016 • Revised: 11 July 2016 • Accepted: 12 July 2016

Abstract

Isolated fracture of the distal humeral trochlea occurs while the axial load delivered to the elbow passes through the trochlear of the distal humerus. It has been rarely reported, because of those reasons. The trochlea is located deep inside of the elbow joint space and since it does not have the direct attachment with muscles or ligaments, a force is hardly transmitted directly. Also ulno-humeral joint is less influenced by compressive or shear force than radio-humeral joint. We report a case of isolated trochlear fracture with review of the literature.