How long does paediatric physiotherapy take to work for Perthes disease?

Perthes disease affects the developing hip, and the care plan may change as the hip heals. Physiotherapy commonly focuses on preserving hip range of motion, reducing stiffness, maintaining suitable strength and protecting the hip from unsuitable loading. Progress may show as easier dressing, walking, transfers or prescribed exercises rather than a rapid change on an X-ray.

Some children need restricted impact or weight-bearing guidance. The physiotherapist should follow the orthopaedic instructions closely, because exercises and activity limits depend on the hip's position and the current stage of care.

Help your child perform the prescribed movements gently and regularly, without forcing a painful range. Keep track of limping, pain, stiffness, fatigue and tolerance of school activities. Use mobility aids or activity restrictions exactly as instructed. Ask the team how to manage sitting, transport, physical education and play, and report changes rather than adding new exercises independently.

Arrange prompt review if pain, limping or stiffness increases, if the child struggles with the prescribed weight-bearing plan, or if a previously manageable activity becomes difficult. Seek urgent help after an injury when there is severe pain, sudden loss of movement, inability to bear weight or a visibly abnormal leg position.

What hip movement are we trying to preserve? Which activities and positions are currently restricted? How should exercises change during a painful period? What signs show that the walking or weight-bearing plan needs review? When is the next orthopaedic assessment?