Journal of Korean Foot and Ankle Society (대한족부족관절학회지)

Korean Foot & Ankle Society (대한족부족관절학회)
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A Study on the Estimation of Calcaneal Width Using a Correlation of Calcaneal Length and Width

종골 길이와 너비의 상관관계를 이용한 종골 너비 추정에 관한 연구

  • Chun, Dong-il (Department of Orthopaedic Surgery, Soonchunhyang University Seoul Hospital) ;
  • Hwang, Shu Chiang (Department of Orthopaedic Surgery, Soonchunhyang University Seoul Hospital) ;
  • Cho, Jae-ho (Department of Orthopaedic Surgery, Hallym University Chuncheon Sacred Heart Hospital) ;
  • Choi, Sung-Woo (Department of Orthopaedic Surgery, Soonchunhyang University Seoul Hospital) ;
  • Kim, Yong Beom (Department of Orthopaedic Surgery, Soonchunhyang University Seoul Hospital) ;
  • Won, Sung Hun (Department of Orthopaedic Surgery, Soonchunhyang University Seoul Hospital)
  • 천동일 (순천향대학교 서울병원 정형외과) ;
  • 황수강 (순천향대학교 서울병원 정형외과) ;
  • 조재호 (한림대학교춘천성심병원 정형외과) ;
  • 최성우 (순천향대학교 서울병원 정형외과) ;
  • 김용범 (순천향대학교 서울병원 정형외과) ;
  • 원성훈 (순천향대학교 서울병원 정형외과)
  • Received : 2017.04.19
  • Accepted : 2017.05.29
  • Published : 2017.06.15
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Abstract

Purpose: The purpose of this study was to determine the correlation and ratio between the calcaneal length and width for predicting the width of calcaneus. Materials and Methods: A total of 190 feet (190 patients) were included based on computed tomography scans. The length of calcaneus (CL) was measured on the line connecting the center of a circle tangent to the cortical margin in the anterior and posterior parts of the calcaneus in a sagittal plane (W1, W2). The width of the calcaneus was defined as the horizontal line of each part (W1, W2, W3) on the same axial plane. The relationship between the measurement was determined through a correlation analysis. The reliability was assessed based on intraclass correlation coefficients. Results: The CL and widths of calcaneus (W1, W2, W3) had a good positive correlation (r=0.848 [W1/CL], r=0.738 [W2/CL], r=0.769 [W3/CL]; p<0.001). The mean CL and widths ratios were 0.33 (W1/CL), 0.37 (W2/CL), and 0.37 (W3/CL). Using these ratios to estimate the widths by multiplying each ratio by the measured calcaneal length, we found a difference between the estimated calcaneal widths and the actual measured calcaneal widths values was 0.25 mm, 0.43 mm, and 0.16 mm. All measurements showed good-to-excellent inter- and intraobserver reliability. Conclusion: This study analyzed the correlation and ratio between the length and width of the calcaneus. The results will help orthopedic surgeons fixate screws in a stable manner to prevent iatrogenic injuries to the medial neurovascular structures of the calcaneus.

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References

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