Abstract
Background: Radiography is
the most widely available imaging modality. Precise evaluations of wrist x-ray can
help diagnosis and evaluate the prognosis of many wrist disorders.
Methods: We measured
length, angles and indices in 150 posteroanterior and lateral wrist x-rays to
determine normal dimensions and variations according to age and sex. All x-rays
were made with standard exposure, with the wrist and forearm in a neutral
position.
Results: The average
carpal height ratio was 0.52±0.03 with the Youm method and 1.5±0.09 with the
Nattrass method. Mean ulnar variance was +0.99±1.6 mm and mean radial
inclination was 25±4 degrees. The average radial tilt was 10±5.1 degrees. Mean
scapholunate angle was 50±8.4 degrees (normal range 40 -60).
Conclusion: Carpal height,
third metacarpal and capitate length were smaller in women than in men. There was
a significant positive relationship between all dimensions. Our data base may
be used to follow-up in conditions such as carpal instability, osteoarthritis
and osteonecrosis, as well as for clinical research.
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