Journal
OSTEOPOROSIS INTERNATIONAL
Volume 18, Issue 8, Pages 1119-1126Publisher
SPRINGER LONDON LTD
DOI: 10.1007/s00198-007-0348-6
Keywords
bone density; cortical thickness; femoral geometry; osteoarthritis; osteoporosis; radiographs
Categories
Funding
- NIA NIH HHS [R01 AG025015-05, R01 AG025015] Funding Source: Medline
Ask authors/readers for more resources
Radiographic parameters of the hip can be useful as an indication of bone mineral density at the femoral neck. Measurements available from routine hip radiographs were correlated with DXA values. Although radiographs are not a test for osteoporosis, measurements of cortical thickness provide information useful for referral for osteoporosis assessment. Introduction Plain hip radiographs are widely used for evaluation of hip pathology in osteoarthritis. A purpose of this study was to determine whether there are relationships between radiographic parameters of bone structure and bone mineral density T-scores, as assessed by dual energy x-ray absorptiometry (DXA). Methods Pre-operative radiographs of 32 postmenopausal, osteoarthritic women undergoing hip arthroplasty were evaluated. Radiographic parameters including the Singh index, Dorr classification, canal-to-calcar ratio, and cortical thickness indices (CTI) were measured and compared with T-score, serum 25 hydroxyvitamin D levels, body mass index (BMI), and body weight. Results The T-score at the femoral neck for type C bone was significantly lower than that of type A (p= 0.041). The CTIs were correlated positively with T-scores for anteroposterior radiographs ( r= 0.5814, p= 0.0005), and for lateral radiographs ( r= 0.571, p= 0.0006). A threshold for lateral CTI set at a value of <== 0.40 results in sensitivity of 0.85 and specificity of 0.79 to segregate the osteoporotic and non-osteoporotic patients. Conclusion Femurs with small radiographic cortical thickness indices had lower T-scores. Finding a radiographic hip cortical thickness index (LAT) with a value of <= 0.40 should be an alert for referral for osteoporosis evaluation and bone mineral density testing.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available