Which characteristic is NOT typically associated with hip dysplasia?

Hip dysplasia is a condition characterized by an abnormal formation of the hip joint, which can lead to instability and dislocation. Shallow acetabulum refers to the insufficient depth of the hip socket, which is a primary feature of hip dysplasia and contributes to joint instability. External rotation of the hips when standing is also commonly associated with this condition, as the position can be a compensatory mechanism for instability in the hip joint. Delayed walking might occur due to the discomfort or instability that affects a child's ability to bear weight properly.

Prolonged toe walking is not typically associated with hip dysplasia. While toe walking can occur for various reasons, including muscular issues or neurological conditions, it is not a direct characteristic or symptom of hip dysplasia. Children with hip dysplasia usually show signs of difficulty with hip movement and may adopt different posture but do not typically present with prolonged toe walking as a notable symptom of hip dysplasia itself. Thus, recognizing that toe walking is more related to other conditions helps to clarify why it does not fit within the context of hip dysplasia characteristics.