Risk Prediction Model of Stephan et al for a Patient Undergoing Hip Arthroscopy

Description

Stephan et al reported a risk prediction model and nomogram for a patient undergoing hip arthroscopy. This can help to determine prior to surgery if the procedure will be successful. The authors are from Radboud University Medical Center and Reinier de Graaf Groep in The Netherlands.

Patient selection: hip arthroscopy

Outcome: successful outcome after the arthroscopy

Parameters:

(1) sex

(2) pincer deformity

(3) labral tear

(4) HOS-ADL score from 0 to 100

(5) WHOQOL physical score from 0 to 90

(6) WHOQOL psychological score from 10 to 100

Parameter	Finding	Points
sex	male	0
	female	-0.97
pincer deformity	no	0
	yes	-0.74
labral tear	no	0
	yes	-0.77
HOS-ADL		0.02 * (HOS)
WHOQOL physical		-0.04 * (WHO physical)
WHOQOL psychological		0.05 * (WHO psychol)

where:

• The limits on the scores are from the nomogram.

X =

= SUM(points for all 6 parameters)-0.19

probability of a successful outcome =

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

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Risk Prediction Model of Stephan et al for a Patient Undergoing Hip Arthroscopy

Description

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