What Is the Ortolani Sign for Hip Dysplasia?

Newborn health screenings identify potential medical conditions early, before symptoms become apparent. These routine checks allow for timely interventions, which can improve health outcomes and prevent serious issues. Such screenings are a standard part of postnatal care, offering a proactive approach to infant well-being. They help ensure health concerns are addressed as early as possible, providing a foundation for healthy growth and development.

Understanding the Ortolani Sign

The Ortolani sign is a physical examination maneuver performed on newborns to assess hip joint stability. It detects Developmental Dysplasia of the Hip (DDH), a condition where the hip joint has not formed properly. In a healthy hip, the femoral head fits securely into the hip socket. With DDH, the socket can be too shallow, or ligaments may be loose, causing the femoral head to be unstable or dislocated. The Ortolani maneuver helps determine if a dislocated hip can be gently guided back into its proper position.

How the Test is Performed

A trained medical professional performs the Ortolani maneuver by gently manipulating each of the infant’s hips. The baby lies on their back, and the examiner flexes the hip and knee to a 90-degree angle. The examiner places fingers along the outside of the thigh and thumb on the inner thigh. With a slow, gentle outward movement (abduction) while applying slight upward pressure, the professional assesses for abnormal movement or sensation. This examination is performed with care to ensure comfort and is not typically painful.

Interpreting the Findings

A “positive” Ortolani sign is a palpable “clunk” as the dislocated femoral head moves back into the hip socket. This clunk indicates a dislocated but reducible hip. Conversely, a “negative” sign means no clunk or abnormal sensation, indicating a stable hip. It is important to distinguish this from a simple “click,” which can sometimes be heard in stable hips and is usually not a cause for concern. A positive Ortolani sign warrants further evaluation by an orthopedic specialist to confirm the diagnosis of DDH.

The Importance of Early Detection

Early identification of DDH through screenings like the Ortolani sign is important for a child’s long-term health. Early detection allows prompt intervention, improving outcomes and often preventing more invasive treatments. If DDH remains undiagnosed and untreated, it can lead to various complications as the child grows. These can include a noticeable limp, chronic hip pain, and early onset of arthritis in the affected joint. Addressing DDH in infancy, while the hip joint is developing, maximizes the chances of normal hip function and avoids these issues.