Walenkamp et al reported several rules for evaluating a patient with wrist trauma. One model identifies all fractures at the wrist. The authors are from the University of Amsterdam, University of Rotterdam and multiple hospitals in The Netherlands.
Patient selection: adult with wrist trauma
Parameters:
(1) age in years
(2) sex
(3) swelling at wrist
(4) swelling at anatomical snuff box
(5) visible deformity
(6) distal radius tender to palpation
(7) pain on radial deviation
(8) pain with axial compression of the thumb
Parameter
Finding
Points
age in years
0.0309 * (age)
sex
female
0
male
0.5862
swelling at wrist
absent
0
present
1.1486
swelling at snuff box
absent
0
present
0.5757
visible deformity
absent
0
present
1.7123
distal radius tender
absent
0
present
0.7029
pain on radial deviation
absent
0
present
0.4963
pain with axial compression of the thumb
absent
0
present
-0.1793
total score =
= SUM(points for all 8 parameters) - 3.616
probability of a fracture =
= 1 / (1 + EXP((-1) * X))
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