Incidence of Tarsal Coalition: An Institutional Magnetic Resonance Imaging Analysis

Jung-Han Kim; Heui-Chul Gwak; Chang-Rak Lee; Young-Jun Kim; Jeon-Gyo Kim; Sun-Joo Lee; Jeong-Han Lee; Jun-Ho Park

doi:10.14193/jkfas.2016.20.3.116

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Kim, Gwak, Lee, Kim, Kim, Lee, Lee, and Park: Incidence of Tarsal Coalition: An Institutional Magnetic Resonance Imaging Analysis

Original Article

J Korean Ophthalmol Soc 2016;20(3):116-120.

Published online: 19 January 2016

DOI: https://doi.org/10.14193/jkfas.2016.20.3.116

Incidence of Tarsal Coalition: An Institutional Magnetic Resonance Imaging Analysis

Jung-Han Kim, Heui-Chul Gwak, Chang-Rak Lee, Young-Jun Kim, Jeon-Gyo Kim, Sun-Joo Lee^*, Jeong-Han Lee^†, Jun-Ho Park

Departments of Orthopedic Surgery, Radiology, Inje University Busan Paik Hospital, Busan, Korea

^*Departments of Orthopedic Surgery, Radiology, Inje University Busan Paik Hospital, Busan, Korea

^†Departments of Orthopedic Surgery, Anesthesiology and Pain Medicine, Inje University Busan Paik Hospital, Busan, Korea

Corresponding Author: Heui-Chul Gwak Department of Orthopedic Surgery, Inje University Busan Paik Hospital, 75 Bokji-ro, Busanjin-gu, Busan 47392, Korea Tel: 82-51-890-6257, Fax: 82-51-890-6619, E-mail: ortho1@hanmail.net

Received 6 May 201611 July 2016 Accepted 2 August 2016

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose:

Tarsal coalition results from defects during the developmental stage and produes ankle pain and limitations in the range of motions. Its incidence has been reported to be 1%, but there has not been any reports with respect to Koreans. Therefore, we evaluated the prevalence of tarsal coalition in Koreans.

Materials and Methods:

Between 2005 and 2014, we analyzed a total of 733 cases of foot and ankle magnetic resonance imaging (MRI) in our hospital. There were 391 men and 342 women. All MRI readings were read by a radiologist in our hospital. We classified the coalitions in accordance with the histological and anatomical characteristics, and calculated the prevalence in each group. Moreover, we tried to determine the prevalence of tarsal coalitions in accordance with sex, age, and proportion of the symptomatic tarsal coalitions.

Results:

There were a total of 11 MRIs of tarsal coalition—9 talocalcaneal coalitions, 1 calcaneocuboidal coalition, and 1 calcaneonavicular coalition. Nine tarsal coalitions were observed in men and 2 in women.

Conclusion:

Through this study, we found that the prevalence of tarsal coalition, including the asymptomatic patients, is similar to the previously known prevalence (1%). By getting more MRIs of the foot and ankle, we could better represent the prevalence of tarsal coalitions in Koreans.

Keywords: Foot, Magnetic resonance imaging, Prevalence, Tarsal coalition

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Figure 1.

Coronal (A) and sagittal (B) T2 image of the cartilagenous talocalcaneal coalition. In T2 images, there is high signal change in the border of the talus and calcaneus (arrows).

Figure 2.

Coronal (A) and sagittal (B) T2 image of the fibrous talonavicular coalition. In T2 images, there is low signal change in the border of the talus and calcaneus (arrows).

Figure 3.

Coronal (A) and sagittal (B) T2 image of the fibrous calcaneonavicular coalition. In T2 images, there is low signal change in the intervening tissue (arrows) between calcaneus and navicular bone.

Figure 4.

Coronal T1 images of the talocalcaneal coalition. The talocalcaneal coalitions were observed in two subtypes. (A) One is the coalition in the posterior articular facet (arrow). (B) The other is the coalition in the middle articular facet (arrow).

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