J Korean Soc Surg Hand.  2016 Sep;21(3):152-156. 10.12790/jkssh.2016.21.3.152.

Isolated Fracture of Distal Humeral Trochlea

• Lee KW
• Bae JY
• Cho HK
• Won HJ

• KMID: 2353820
• DOI: http://doi.org/10.12790/jkssh.2016.21.3.152

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.

Keyword

Humerus; Trochlea; Fracture

MeSH Terms

Elbow
Elbow Joint
Humerus
Joints
Ligaments
Muscles

Figure

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  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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