Radiographic indexes in AP hip radiographs prior to total hip arthroplasty reveal candidates with low BMD

   Summary Using anteroposterior (AP) hip radiograph, we measured several indexes to investigate the association with bone mineral density (BMD) before THA and found a highly effective index to predict femoral BMD. This technique is helpful for both patients and clinicians to identify potential cand...

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Bibliographic Details
Published in:Osteoporosis international 2022-04, Vol.33 (4), p.871-879
Main Authors: Liu, Y., Ma, W.-J., Huang, K., Yang, J., Zeng, Y., Shen, B.
Format: Article
Language:English
Subjects:
Bone density
Bone mineral density
Canals (anatomy)
Correlation analysis
Cortical bone
Dual energy X-ray absorptiometry
Endocrinology
Femur
Hip
Joint replacement surgery
Joint surgery
Medicine
Medicine & Public Health
Original Article
Orthopedics
Osteopenia
Osteoporosis
Patients
Radiography
Rheumatology
Spine (lumbar)
Total hip arthroplasty
Trochanter
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Summary:   Summary Using anteroposterior (AP) hip radiograph, we measured several indexes to investigate the association with bone mineral density (BMD) before THA and found a highly effective index to predict femoral BMD. This technique is helpful for both patients and clinicians to identify potential candidates with low BMD to whom DXA examination is particularly recommended. Introduction The purpose of the study is to identify patients with low bone mineral density (BMD) prior to total hip arthroplasty with the help of AP hip radiographs. Methods Indexes on AP hip radiographs and T-scores from DXA examination of the lumbar spine and the affected hip were acquired from patients before THA. Indexes measured on AP hip radiographs including the canal calcar ratio (CCR), canal flare index (CFI), morphological cortical index (MCI), canal bone ratio (CBR), and canal bone area ratio (CBAR). The relevance between indexes and the T-score of femora was evaluated by correlation analysis, and the diagnostic value of indexes for osteopenia was examined by receiver operating characteristic (ROC) curves. Results A total of 81 patients were included. The average value of CBR-7, CBR-10, and CBAR (7–10) were highly related to the T-score of femora ( r  =  − 0.592, r  =  − 0.634, and r  =  − 0.631, respectively, p  
ISSN:0937-941X
1433-2965
DOI:10.1007/s00198-021-06231-8