Dual-Energy X-Ray Absorptiometry Does Not Confirm Validity of the Craig's Test.
J Clin Densitom
; 27(1): 101466, 2024.
Article
em En
| MEDLINE
| ID: mdl-38232655
ABSTRACT
The Craig's test is a clinical assessment used to quantify femoral version. The validity of the Craig's test has been called into question due to instances where the test exhibits relatively poor correlation with three-dimensional imaging. Our study purpose was to use dual-energy X-ray absorptiometry (DXA) to indirectly assess the validity of the Craig's test. Twenty-three volunteers (nâ¯=â¯46; each hip analyzed separately) received two hip DXA scans using two different methods of positioning. During the first scan, a standard-sized wedge, the conventional tool of hip positioning for DXA scans, was used to fixate the legs without regard for individual levels of femoral version. For the second scan, the participants' hips were manually positioned according to their degree of femoral version determined by the Craig's test. We hypothesized that the bone mineral density (BMD) values from the customized positions would be lower due to the X-ray beams hitting the femoral neck perpendicularly. A paired t-test revealed weak evidence of a difference between BMD readings of the conventional and customized positions (p-valueâ¯=â¯0.065); moreover, contrary to our hypothesis, the BMD readings obtained in the standard position were lower than those obtained in the customized position, albeit not significantly. Our findings suggest that the Craig's test is not a valid clinical assessment of true femoral version. A secondary conclusion is that the widespread use of the standard wedge for hip positioning during DXA scans is a better option than trying to find a customized position that is based on findings of the Craig's test.
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Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Densidade Óssea
/
Fêmur
Limite:
Humans
Idioma:
En
Revista:
J Clin Densitom
Assunto da revista:
ORTOPEDIA
Ano de publicação:
2024
Tipo de documento:
Article