What are the signs and treatment goals for Legg-Calve-Perthes disease?

🔍 Key Signs & Symptoms

  • Limping, often painless or with mild discomfort in the hip, groin, thigh, or knee  .

  • Limited hip range of motion, especially in abduction and internal rotation  .

  • Stiffness or muscle weakness in the thigh or pelvic region; possible leg length discrepancy ().

  • Trendelenburg sign/gait, indicating hip abductor weakness  .

📈 Occurs in children aged 4–10, more commonly in boys  .

🎯 Primary Treatment Goals

  1. Relieve pain and hip irritability

  2. Maintain hip mobility and range of motion

  3. Contain the femoral head within the acetabulum to promote molding

  4. Preserve or restore a spherical (round) femoral head to prevent future arthritis  .

🛠 Treatment Options by Age & Severity

👶Children <6 years old

  • Often managed non-surgically due to strong remodeling capacity.

  • Options include:

    • Observation

    • Activity restriction / protected weight-bearing (crutches, wheelchair)

    • Physical therapy to maintain motion

    • NSAIDs for pain relief  .

🧒Children 6–8+ years or with hip deformity

  • If containment is inadequate or disease more advanced:

    • Bracing or casting (e.g., Petrie cast) to maintain hip alignment  .

    • Surgical containment:

      • Femoral osteotomy or pelvic osteotomy (Salter, Dega, shelf) to realign femur within the socket  .

Age Group

Treatment Strategy

Objectives

<6 yrs, mild case

Observation, rest, PT, NSAIDs

Support natural healing and preserve shape

6-8+ yrs or deformity

Add casting/bracing or surgery

Actively contain and mold femoral head

✅ Prognosis

  • Younger children typically recover well with conservative care.

  • Older children or those with deformity often require surgical intervention  .

  • Ultimate outcome hinges on retention of a spherical femoral head, minimizing long-term arthritis risk  .