Smolle et al reported a nomogram for predicting the risk of acute compartment syndrome in a patient with a fracture of the tibial plateau. The authors are from Medical University of Graz in Austria.
Patient selection: fracture of the tibial plateau
Parameter:
(1) Schatzker type of tibial fracture
(2) polytrauma
(3) gender
(4) body mass index, from 16 to 36 kg per square meter
points for body mass index =
= (0.277 * (BMI)) + 0.028
Parameter
Finding
Points
Schatzker type
I to III
0
III to VI
7.08
polytrauma
no
0
yes
3.72
gender
female
0
male
8.28
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 4.46
• maximum score: 29.08
value of X =
= (0.242 * (score)) - 6.85
probability of compartment syndrome =
= 1 / (1 + EXP((-1) * X))
A probability >= 18% should trigger monitoring for compartment syndrome.
Performance:
• The area under the ROC curve is 0.84.
To read more or access our algorithms and calculators, please log in or register.
