Trendelenburgtest

The Trendelenburg test is a simple physical examination maneuver used to assess the strength of the hip abductor muscles, specifically the gluteus medius and gluteus minimus. These muscles play a crucial role in stabilizing the pelvis during walking and standing. The test is performed while the patient stands on one leg.

To perform the test, the patient is asked to stand on one leg, lifting the other foot off the ground. The examiner observes the pelvis on the side of the leg that is lifted. If the hip abductor muscles on the weight-bearing side are functioning correctly, they will contract to keep the pelvis level.

A positive Trendelenburg sign is indicated when the pelvis on the side of the lifted leg drops downwards, or dips. This suggests weakness in the hip abductor muscles of the weight-bearing leg. The severity of the pelvic drop can sometimes correlate with the degree of muscle weakness.

The Trendelenburg test is commonly used in the assessment of gait abnormalities, hip pain, and conditions affecting the hip joint or its surrounding muscles, such as osteoarthritis or a torn gluteus medius tendon. It is a quick and easily performed test that provides valuable information about hip stability and function.