Comparison between X-ray and Three Dimensional Computed Tomography in Trimalleolar Ankle Fractures.
10.12671/jkfs.2005.18.2.160
- Author:
Sang Jun SONG
1
;
Hyung Ku YOON
;
Dong Eun SHIN
;
Soo Hong HAN
;
Jae Hwa KIM
;
Hyung Kun PARK
;
Yong Sub HAN
Author Information
1. Department of Orthopedic Surgery, Pochon CHA University, Gyeonggi-do, Korea. Tesstore@empal.com
- Publication Type:Original Article
- Keywords:
Ankle;
Trimalleolar fracture;
Simple X-ray;
Computed tomography
- MeSH:
Ankle;
Ankle Fractures*;
Classification
- From:Journal of the Korean Fracture Society
2005;18(2):160-164
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To evaluate the accuracy of X-ray evaluation in classification, displacement and size of posterior malleolar fragment, comparing with three dimensional computed tomography (3D CT) in trimallelar ankle fractures. MATERIALS AND METHODS: 20 cases of trimalleolar ankle fractures evaluated with preoperative 3D CT, and followed up periods were at least 2 years. All cases were classified according to the Danis-Weber and Lauge-Hansen classification. Displacement and size of posterior malleolar fragment were measured using PACS. The reliability between simple X-ray and 3D CT was evaluated in the Danis-Weber and Lauge-Hansen classification (kappa analysis). The correlation between simple X-ray and 3D CT was evaluated in displacement and size of posterior malleolar fragment (correlation analysis). RESULTS: Degree of agreement of Danis-Weber classification in simple X-ray and 3D CT was 0.700 kappa value, and that of Lauge-Hansen was 0.605 kappa value. Measurement of simple X-ray and 3D CT about displaced status of posterior malleolar fragment showed statistically significant positive linear correlation (p= 0.000), but correlation of measurement of size in simple X-ray and CT was not statistically significant (p=0.102). CONCLUSION: CT or operative field will be more accurate than simple X-ray to select the method of treatment and operation, especially when the displacement and size of posterior malleolar fragment are important to decide.
