Amsterdam Wrist Rules: Model for a Distal Radius Fracture

Description

Walenkamp et al reported several rules for evaluating a patient with wrist trauma. One model identifies fracture of the distal radius. 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) swelling at wrist

(3) visible deformity

(4) distal radius tender to palpation

(5) pain on palmar flexion

(6) pain on supination

(7) pain on ulnar deviation

(8) pain during radioulnar ballottement test

Parameter	Finding	Points
age in years		0.0341 * (age)
swelling at wrist	absent	0
	present	1.7298
visible deformity	absent	0
	present	1.6462
distal radius tender	absent	0
	present	1.8117
pain on palmar flexion	absent	0
	present	0.4228
pain on supination	absent	0
	present	0.6567
pain on ulnar deviation	absent	0
	present	-0.2941
pain during radioulnar ballottement test	absent	0
	present	0.5949

total score =

= SUM(points for all 8 parameters) - 6.0202

probability of a fracture of the distal radius =

= 1 / (1 + EXP((-1) * X))

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Amsterdam Wrist Rules: Model for a Distal Radius Fracture

Description

Specialty