Department of Radiology, University of Cincinnati College of Medicine, 234 Goodman Street, Cincinnati, OH 45219, USA.
Skeletal Radiol. 2011 Jul;40(7):937-41. doi: 10.1007/s00256-011-1154-y. Epub 2011 Apr 13.
Tarsal navicular stress fractures are injuries more commonly observed in athletes involved in sprinting and jumping sports. Known risk factors for the development of navicular stress fractures include pes cavus, metatarsus adductus, limited subtalar or ankle motion, medial narrowing of the talonavicular joint, as well as a short first metatarsal. The presence of an os supranaviculare has yet to be described as a predisposing factor in the occurrence of navicular stress fractures. We present two cases of navicular stress fractures in patients with an os supranaviculare and discuss possible reasons for such an association.
跗骨舟状骨应力性骨折更常见于参与短跑和跳跃运动的运动员。舟状骨应力性骨折的已知危险因素包括高弓足、内收足、距下关节或踝关节活动度有限、舟楔关节内侧变窄以及第一跖骨较短。舟状骨上骨(os supranaviculare)的存在尚未被描述为舟状骨应力性骨折发生的易患因素。我们报告了两例伴有舟状骨上骨(os supranaviculare)的舟状骨应力性骨折病例，并讨论了这种关联的可能原因。
