Spica cast for developmental dysplasia of the hip

A spica cast is a hard covering over the waist, hips, and legs that prevents movement of the hips. A bar between the legs keeps the cast strong and an opening in the genital area allows normal urine and bowel elimination. A spica cast may be used to keep the hip joint of a child with developmental dysplasia of the hip (DDH) in the position for normal growth.

Spica casts are usually made of plaster or fibreglass. Plaster casts dry rapidly, but may feel damp for 24 to 48 hours. Fibreglass casts feel dry in less than 30 minutes. See a picture of a spica castClick here to see an illustration..

Spica casts are usually worn for 2 to 3 months and cannot be removed during this time. The child's position needs to be changed every 2 hours to relieve areas of pressure under the cast to prevent irritation or development of sores. In addition, the child's feet should be observed for swelling, pain, or a change in colour. The skin around the edges of the cast needs to be inspected daily for irritation.

Plaster casts must be kept dry, but fibreglass casts can be washed with a damp cloth if they are soiled. Clothing should be placed over the cast to prevent small food particles or toys from getting inside the cast and irritating the skin.



Author: Shannon Erstad, MBA/MPH
Carrie Henley
Last Updated: July 23, 2007
Medical Review: Michael J. Sexton, MD - Pediatrics
Thomas S. Renshaw, MD - Orthopedics
Andrew Swan, MD, CCFP, FCFP - Family Medicine

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