GODFREY

90/90 TEST

​• Test positioning

The client lies supine on a table with both the hip and knee of the involved side flexed to 90-degrees.

​• Action

The tharapist passively stabilizes the positioning of the client's hip and knee while assessing the location of the tibia along the longitudinal axis.

​• Positive finding

The recognition of one tibia resting more interiorly than the contralateral side may indicate a posterior sag or instability.

This may be related to the posterior cruciate ligament.

​• Special considerations & comments

This test must be performed bilaterally.

Applying a superior force to the tibia from the posterior aspect may reduce the alignment to a normal resting position if it is actually found to be sagging.

It is important to maintain neutral tibial rotation, otherwise, a positive finding may be the result of a capsular extensibility.