ABSTRACT
The impaction bone grafting procedure has become an option in revision hip surgery and has been popularized by SJooff et al. [I] for the reconstruction of cavitary acetabular defects in revision hip a11hroplasty. It was further modified by Gie et al. [2] for the femoral revisions. The procedure involves progressive impaction of morselized "cancellous" bone grafts in the femoral canal or the acetabular cavity, which are both deficient in bone stock due to wear effects from a previous al1hroplasty. A standard prosthesis is then cemented directly in contact with the impacted graft layer, which becomes a load-bearing material. The grafts can be remodeled and progressively transformed in normal living bone, restoring the patient's bone stock. Acruevement of con'ect implant stability is the technical goal of this procedure as well as a prerequisite for further remodeling of the grafts [3].
