The Barlow test is a physical examination used by veterinarians to assess the stability of a dog's hip joint. It is a provocative test, meaning it intentionally creates a slight dislocation or subluxation of the hip joint to assess the degree of laxity. This laxity can be a sign of hip dysplasia, a condition where the hip joint develops abnormally, leading to pain, lameness, and osteoarthritis.
The Barlow test is performed by gently pushing the dog's femur (thigh bone) out of the hip socket, while stabilizing the pelvis. The veterinarian will feel for any movement or "clunk" as the hip joint dislocates. If the hip joint easily dislocates and then "clunks" back into place, it is considered a positive Barlow test, indicating hip dysplasia.
The Barlow test is often performed in conjunction with other tests, such as the Ortolani test and the Barden test, to get a complete picture of the dog's hip stability. It is typically performed on young dogs, especially those with a family history of hip dysplasia, as early detection and treatment can help prevent future complications.
