Journal List > Korean J Sports Med > v.35(3) > 1054590

Korean J Sports Med. 2017 Dec;35(3):149-154. Korean.
Published online December 07, 2017.
Copyright © 2017 The Korean Society of Sports Medicine
Humeral Shaft Fracture Sustained during Arm Wrestling in Young Males
Seung Rim Yi,* Jieun Kwon,* Ye Hyun Lee, Bo Kyu Yang, Young Joon Ahn, Se Hyuk Im, Joon Hee Cho and Sang Hoon Park
Department of Orthopedic Surgery, National Police Hospital, Seoul, Korea.

Correspondence: Ye Hyun Lee. Department of Orthopedic Surgery, National Police Hospital, 123 Songi-ro, Songpa-gu, Seoul 05715, Korea. Tel: +82-2-3400-1243, Fax: +82-2-3400-1249, Email:

*Seung Rim Yi and Jieun Kwon contributed equally to this study as first authors.

Received May 10, 2017; Revised August 30, 2017; Accepted September 27, 2017.

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.


Humeral shaft fracture sustaining arm wrestling is rare, but occurs intermittently. We treated 15 cases of humeral shaft spiral fractures occurred during arm wrestling for fun since 2007. Average age was 22.47±2.69 years, average body mass index was 22.67±2.06 kg/m2. There was no prominent tendency for the fractures to occur at a certain phase of the match. Fractured level and length of each case were measured in the plain radiographs and compared with those of previous reports. Eight cases (53.3%) had an associating medial butterfly fragment, and the time taken until the fracture occurred was longer than that of simple spiral fracture (15.62±9.03 seconds vs. 7.85±2.67 seconds, p=0.048). Fractures were distributed mid to distal one third of humerus, the length of fracture was 7.93±2.69 cm and involved 25.43%±8.24% of humeral length. All cases except one treated surgically using plate and screws and returned their full activities within postoperative 3 months. Although arm wrestling is a simple and joyful sport, participants should be aware of the risks of injury during arm wrestling, especially for the amateur players.

Keywords: Arm wrestling; Etiology; Humeral fracture; Young male


Fig. 1
Typical type of fracture caused by arm wrestling is the external rotation type spiral fracture with (A) or without (B) a medial butterfly fragment.
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Fig. 2
The site and the average length of fractures. Most fractures occurred in the mid to lower one-third of the humerus and eight out of 15 cases had butterfly fragments.
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Table 1
Demography of cases
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Table 2
Comparison between fractures with and without butterfly fragment
Click for larger image


Conflict of Interest:No potential conflict of interest relevant to this article was reported.

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