de Villaumbrosia et al reported the Hip Fracture Prognosis (HF-Prognosis) tool for predicting gait recovery at 1 month after a hip fracture. The authors are from multiple institutions in Spain.
Patient selection: hip fragility fracture in an adult >= 75 years of age
Parameters:
(1) age in years
(2) prefracture ambulation
(3) cognitive impairment
(4) ASA status
(5) surgical delay in hours
(6) early postoperative mobilization
(7) discharge destination
(8) fracture type
(9) weight bearing
(10) pressure ulcer
Parameter
Finding
Points
age
-0.048 * (age)
prefracture ambulation
independent
0
dependent
0.246
cognitive impairment
none
0
present
-0.768
unknown
-0.384
ASA status
I
1.062
II
0.194
III
0
IV or V
-0.335
unknown
-0.284
surgical delay
<= 24 hours
0.148
> 24 hours
0
early postop mobilization (<= 24 hours)
no
-0.440
yes
0
discharge destination
home
0
nursing home
-0.985
rehab facility
-0.358
other
-1.306
fracture type
subtrochanteric
-0.631
other (intracapsular or intertrochanteric)
0
weight bearing
not allowed
-1.906
allowed or unknown
0
pressure ulcer
absent
0
present
-0.546
value of X =
= SUM(points for all of the parameters) + 5.823
probability of recovery of ambulation =
= 1 / (1 + EXP((-1) * X))
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