Godfrey's sign, knee, knee pain, ligament laxity, ligament test, ortho, PCL, posterior cruciate ligament, posterior sag, special test

Purpose

This test is used to assess the integrity of the PCL.

Technique

Patient is positioned supine.

Clinician flexes the patient’s hips and knees to 90°.

Clinician observes the tibial plateaus looking for sag or posterior translation of the tibia.

Clinician compares both sides.

Positive

Posterior sag of the tibia or a sulcus at the tibial plateau.

Interpretation

A positive test indicates a torn PCL.

References

1. Dutton, M. (2008). Orthopaedic: Examination, evaluation, and intervention (2nd ed.). New York, NY: The McGraw-Hill Companies, Inc.

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