Abstract
A new computer-assisted simulation of forearm rotation based on orthogonal radiographs
of the forearm is introduced. A new computer program called STOOPS was developed based
on a new kinematic model describing motion of the radius and ulna in regards to forearm
rotation. The computer program allows simulation of angular deformities of the forearm
and can predict subsequent rotational impairment. To validate the program, the authors
compared the actual pronation of 21 patients with angular deformities with the predicted
pronation by STOOPS. The mean difference between the simulated and clinically measured
pronation was 5.6° (S.D. 9.4°). There was no statistically significant difference
between the measured and simulated values.
Using the computer-assisted simulation may help predict impairment of pronation due
to angular deformities. If clinical impairment differs from the computed one, other
causes such as lesions to the interosseous membrane or the adjacent joints have to
be excluded. If values are similar, correction of the angular deformities should result
in improvement of forearm pronation.
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Article info
Publication history
Accepted:
May 13,
2002
Identification
Copyright
© 2002 Elsevier Science Ltd. Published by Elsevier Inc. All rights reserved.
