2017 ISAKOS Biennial Congress ePoster #147

 

Ankle Structures Of Jones Fractures In Professional Football Players

Kazuha Kizaki, MD, MSc, Halifax, Nova Scotia CANADA
Fumiharu Yamashita, MD, PhD, Kyoto, Kyoto JAPAN
Noboru Funakoshi, MD, Kyoto, Kyoto JAPAN

Kyoto Shimogamo Hospital, Kyoto, Kyoto, JAPAN

FDA Status Cleared

Summary

Short medial malleolar length and wide malleolar slip angle become predisposing factors of Jones fractures in professional football players.

Abstract

Jones fractures are stress fractures of the base of the 5th metatarsal. Jones fractures are more common in athletes, especially in football players.
Foot structures have been investigated as predisposing factors of Jones fractures. However, ankle structures have not yet been examined as possible predisposing factors of Jones fractures.
This study was designed to identify ankle radiographic predisposing factors of Jones fractures in professional football players. We retrospectively reviewed ankle radiographs of 10 Jones fractures, as compared with 193 controls in professional football players.
In Jones fractures, medial malleolar length was significantly shorter (p<0.01, unpaired t-test) and medial malleolar slip angle was significantly wider (p<0.01), though lateral malleolar length was not significantly different (p=0.12) as compared with controls.
Logistic regression analyses revealed that short medial malleolar length (Odds ratio [OR] =0.65, Confidence interval 95% [CI95%] 0.49-0.87) and wide malleolar slip angle ([OR] =1.22, [CI95%] 1.05-1.42) are statistically significant predisposing factors of Jones fractures in professional football players.
To our best knowledge, this is the first report presenting ankle structures become predisposing factors of Jones fractures in professional football players.