What Is Posterior Sag Sign
The Posterior Sag Sign Indicates the Presence of a Posterior Cruciate Ligament Tear. to Look for This Sign, the Patient Lies Supine with Their Hips Flexed to...
The Posterior Sag Sign indicates the presence of a posterior cruciate ligament tear. To look for this sign, the patient lies supine with their hips flexed to 45˚ and their knees flexed to 90˚. Normally, the medial tibial plateau lies at least 1 cm anterior to the femoral condyle when viewed directly from the side.
What does a positive posterior sag test indicate?
A positive sag sign is characteristic of PCL injuries and results when gravity pulls the tibia downward greater than 10 mm. Clinicians can also use the posterior drawer test to evaluate the injury. A positive drawer sign occurs if the patient’s tibia slides posteriorly.
What does the SAG TEST TEST?
Use: To assess integrity of the posterior cruciate ligament. Procedure: Client supine with hip/knees flexed; observe profile of knees from side of table. Findings: The affected tibia sags posteriorly compared to the unaffected side which indicates a torn PCL.
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