Dual energy X-ray absorptiometry (DXA): can it detect acute scaphoid fractures?
This prospective study investigated whether dual energy X-ray absorptiometry (DXA) could detect acute scaphoid fractures. We blindly compared 10 normal and 10 fractured scaphoid images produced with a new technique of DXA scan analysis. This measured and plotted the density of the scaphoid throughout its length, producing a linear graph of the scaphoids' density instead of a single area (g/cm2) measurement of bone density. These new plots only detected six of the 10 fractures and suggested that four of the normal controls were fractured. Thus, this technique of DXA scan analysis is neither sensitive nor specific for the detection of acute scaphoid fractures.
Stephen
A B
AB
Department of Medical Physics, University Hospital, Queens Medical Centre, Nottingham NG7 2UH, UK.
Pye
D
D
Lyons
A R
AR
Oni
J A
JA
Davis
T R C
TR
D015502:Absorptiometry, Photon; D050723:Fractures, Bone / Q000175:diagnosis*; D006801:Humans; D011446:Prospective Studies; D021361:Scaphoid Bone / Q000293:injuries*; D016037:Single-Blind Method