We thank Dr. Macaulay for his kind comments and interest in our paper.First, the 7.5% dislocation rate might have been reduced a little in
association with the use of a 32-mm head. Other variables that could have
reduced the dislocation rate were optimal orientation of the acetabular
component, the use of an acetabular component with a long posterior wall, and
repair of the transgluteal approach in three layers (including the capsule,
gluteus medius, and gluteus minimus).