Vol. 7, Issue 1, Part A (2025)

Background: The number of total hip arthroplasty (THA) surgeries is growing annually Acetabular bone defects are frequently encountered in THA, and the reconstruction can be challenging for surgeons, especially in large defects. 
Patient and Method: This is a prospective study conducted on 20 patients which were indicated for primary or revision total hip Arthroplasty THA with acetabular defect and needed acetabular reconstruction by impaction bone graft IBG. The age of the studied patients ranged from 19 to 73 years. There were 12 (60%) males and 8 (40%) females. 12 (60%) operations were performed for the right side and 8 (40%) were for the left side.
Results: The postoperative mHHS ranged from 69.2 to 87.1. Regarding the radiological graft incorporation to host bone, 6 (30%) patients achieved partial incorporation while 14 (70%) patients achieved complete incorporation. No patients developed loosening of cup radiolucent line more than 2 mm or acetabular migration more than 5 mm. Postoperative complications involved initial loosening of screws in 1 (5%) patient, temporary sciatic palsy in 1 (5%) patient who was resolved spontaneously, and dislocation in 1 (5%) patient.
Conclusion: Impaction Bone Graft for acetabular reconstruction in THA can achieve satisfactory results with high rate of radiological graft incorporation and low complication rate. Factors associated with favorable graft incorporation include primary THA, autografts, cementless cups, reduced defect size, and decreased thickness of the graft layer.