Main causes of Hip subluxation in children with Cerebral Palsy & its treatment procedure

  • March 28, 2016
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In children with cerebral palsy the hip is normal at birth but the effects of delayed motor development lead to dysplasia. Asymmetrical activity of the muscles surrounding the hip and lack of load bearing affect bone development are the main causes of subluxation and dislocationbirthing classes in begumpet, lamaze classes for pregnant women, iq testing for special children, speech therapy in begumpet, surface emg treatment in hyderabad, pulmonary rehabilitation treatment


Hip displacement refers to the gradual lateral displacement of femoral head from under the acetabulum, and it is defined by Migration Percentage (MP). MP is calculated by dividing the width of femoral head outside the lateral margin of the acetabulum A by the total width of the head of the femur B.

Hip subluxation is defined by MP between 10% and 99%. Hip dislocation is defined when MP is 100%.

Lack of weight bearing and asymmetry in activity of muscles around hip because of spasticity and muscle imbalances which leads to pain, degeneration of articular cartilage, limited range of motion, difficulty in functioning hygiene and personal care

Recently a scale was developed to describe hip morphology in adolescents with CP

  • I – Normal hip with MP < 10%
  • II – Near normal hip with MP ≥ 10% ≤ 15%
  • III – Dysplastic hip with MP > 15% ≤ 30%
  • IV – Subluxated hip with MP ≥ 30% < 100%
  • V – Dislocated hip with MP ≥ 100%
  • VI – Salvage Surgery

Treatment includes Postural management, orthosis, tone management and surgery, prone positioning is very useful after birth during play activities, sitting and standing in hip abduction. SWASH brace helps in positioning

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