What is the primary indication for performing Gaenslen's Test?

• A. Knee sprain
• B. Hip dislocation
• C. SI sprain/subluxation
• D. Ankle injury

Answer: (C)

Gaenslen's Test is primarily used to assess for sacroiliac (SI) joint dysfunction, which is often related to conditions such as sacroiliac sprains or subluxation. This test involves the patient lying supine while one leg is held flexed at the knee and hip, and the other leg is allowed to drop off the edge of the examination table. This position creates stress on the SI joint, which can help identify pain or discomfort indicative of an underlying issue in that area.

In the context of the other options, knee sprains, hip dislocations, and ankle injuries do not directly involve the sacroiliac joint and would not be evaluated through Gaenslen's Test. Instead, conditions affecting the knee or hip would generally require specific tests focused on those joints, while ankle injuries would necessitate different assessment methods entirely. Therefore, SI sprain or subluxation is the correct indication for performing Gaenslen's Test.