1. Objective:To study nursing of gluteus muscle contracture due to injection.

2. Objective To explore the pathogenesis of gluteus muscle contracture(GMC)and evaluate the effectiveness of the small incision surgery.

3. Objective: to discuss the clinical nursing of gluteus muscle contracture.

4. Objective To compare the clinical effects of two different anesthetic methods used in the children's gluteus muscle contract (GMC)operation.

5. Objective : To introduce a new operative procedure for gluteus muscle contracture, and conclude its operation effects.