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http://dx.doi.org/10.5371/jkhs.2011.23.2.142

Reliability of the Radiologic Measurement Methods for Assessment of Osteoporosis Using the Digital Hip Radiograph  

Yun, Ho-Hyun (Department of Orthopedic Surgery, Seoul Veterans Hospital)
Yi, Ju-Won (Department of Orthopedic Surgery, College of Medicine, Ewha Womans University)
Lim, Deuk-Soo (Department of Orthopedic Surgery, Seoul Veterans Hospital)
Park, Sung-Chul (Department of Orthopedic Surgery, Seoul Veterans Hospital)
Oh, Seong-Rok (Department of Orthopedic Surgery, Seoul Veterans Hospital)
Publication Information
Hip & pelvis / v.23, no.2, 2011 , pp. 142-150 More about this Journal
Abstract
Purpose: We evaluated the usefulness of radiographic parameters for osteoporosis by analyzing the results of radiographic parameters determined by digital hip radiographs and bone mineral density T-scores, as assessed by Dual Energy X-ray Absorptiometry (DEXA). Materials and Methods: The authors reviewed 100 subjects in the hip fracture group and 50 in the non-fracture control group. Digital hip radiographs were assessed to determine the values of Singh index, Canal-to-Calcar Ratio, and Cortical Thickness Index (CTI). Bone mineral density was assessed by DEXA. Results: Intraclass Correlation Coefficient (ICC) results of the CTI were above 0.8 in the fracture group. Compared to the control group, the fracture group showed higher ICCs. Interobserver ICCs were especially lower in the control group. There were statistically significant correlations between CTI and DEXA (r=0.50~0.58, p<0.05). In the analysis of ROC curves, a mean threshold for CTI set a value of 0.54 (0.53~0.55), and mean sensitivity and specificity were 75.5% (69~79%) and 67.8% (65~78%), respectively. Conclusion: CTI showed reasonable reliability and correlation with DEXA results. CTI was a useful radiographic parameter to alert the surgeon to recommend referral for osteoporosis evaluation in elderly hip fracture patients.
Keywords
Hip; Hip fracture; Osteoporosis; Radiographic parameter; Digital radiograph;
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