Abstract
Infection,dislocation and trauma of the hip often cause destruction of the head and neck of the femur and a shallow acetabulum.To restore the normal relationship between the acetabulum and the femur head, shelf operation is a logical method. A bone graft about 4×5 cm in size is taken from ilium,the graft is set into a slot made around the acetabulum,presenting with an angle of 30-45°and it is fixed into the ilium with a long screw.The head of femur should be covered by the graft completely.Ten cases had undergone this operation and followed up more than 2 years.All the grafts have fused,graft hypertrophy has appeared in 8 of them.The movement of the hip is not limited.There has been no sign of breakage or absorption or displacement of the graft.The authors state that firm fixation of the graft and restoring the bearing stress to the ilium are the key to the success on this operation.
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