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KMID : 1130920220260040163
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Journal of Korean Foot and Ankle Society
2022 Volume.26 No. 4 p.163 ~ p.170
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Ankle and Foot Injuries Accompanying 5th Metatarsal Fractures
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Lee Hyo-Beom
Park Jin-Ho
Lee Chae-Ho
Kim Gab-Lae
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Abstract
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Purpose: The proximal fifth metatarsal fracture is one of the most common foot fractures. However, few studies have evaluated the asso- ciated injuries in patients with a proximal fifth metatarsal fracture. The purpose of this study was to investigate the incidence of foot and ankle joint injuries associated with proximal fifth metatarsal fractures and compare the incidence of these injuries based on the injury mechanisms and location of the fracture.
Materials and Methods: This retrospective study included 157 patients with a proximal fifth metatarsal fracture who underwent surgery from January 2014 to August 2021. Their medical records and radiology images were reviewed to classify and analyze the associated in- juries. The proximal fifth metatarsal fractures were classified using Lawrence and Botte's classification. Injury mechanisms were divided into direct and indirect injuries. The incidence of injuries was statistically analyzed according to the injury mechanism and classification.
Results: Of the 157 patients with proximal fifth metatarsal fractures, 81 (51.6%) were diagnosed with foot and ankle joint injuries. The incidence of foot injuries was 65.4%, that of ankle joint injuries was 19.8%, and of both foot and ankle joint injuries was 14.8%. In pa- tients with direct injuries, the incidence of foot and ankle joint injuries was 82.5% and that of indirect injuries was 41.0%. Statistical dif- ferences were observed between the incidence of direct and indirect injuries (p<0.001). The incidence of injuries, according to Lawrence and Botte’s classification, was 54.9% (Zone I), 41.2% (Zone II), and 50.0% (Zone III) respectively. However, there were no statistically significant variations in the locations of the proximal fifth metatarsal fractures (p=0.051).
Conclusion: In this study, the incidence of foot and ankle joint injuries associated with proximal fifth metatarsal fractures was found to be high. Therefore, a careful physical examination and appropriate radiological evaluation are recommended for patients with such frac- tures.
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KEYWORD
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Fractures, Bone, Foot bones, Foot injuries, Foot
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