Journal List > J Korean Soc Surg Hand > v.21(3) > 1106528

J Korean Soc Surg Hand. 2016 Sep;21(3):152-156. Korean.
Published online September 29, 2016.
Copyright © 2016. The Korean Society for Surgery of the Hand
Isolated Fracture of Distal Humeral Trochlea
Ki-Won Lee, Joo-Yul Bae, Hyung-Kwon Cho and Hee-Jae Won
Department of Orthopedic Surgery, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea.

Correspondence to: Joo-Yul Bae. Department of Orthopedic Surgery, Gangneung Asan Hospital, University of Ulsan College of Medicine, 38 Bangdong-gil, Gangneung 25440, Korea. TEL: +82-33-610-3249, FAX: +82-33-641-8050, Email:
Received March 02, 2016; Revised July 11, 2016; Accepted July 12, 2016.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.


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.

Keywords: Humerus; Trochlea; Fracture


Fig. 1
Initial radiograph.
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Fig. 2
(A, B) Initial computed tomography scan.
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Fig. 3
(A, B) Postoperative radiograph and sagittal plane views of computed tomography scan shows open reduction and internal fixation with cancellous screw.
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Fig. 4
Radiograph after implant removal.
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Table 1
Reports of isolated trochlear fracture
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