"Acute Primary Total Hip Arthroplasty for Combined Posterior Acetabulum Fracture with Ipsilateral Associated Posteriorly Dislocated Femoral Head with Femoral Neck Fracture. Using of Femoral Head as an Autograft Would be an Advantage".

Introduction: Traumatic posterior hip dislocation with comminuted fracture of the ipsilateral acetabulum and femoral neck is a rare fracture pattern. These injuries are associated with high energy trauma and pose challenges during management. Controversy exists between hip preservation and replacement surgeries in middle-age patients. Open reduction and internal fixation (ORIF) have a high risk of non-union, avascular necrosis, and post-traumatic osteoarthritis of hip requiring total hip arthroplasty hip replacement (THA) as a secondary procedure later.

Case Report: A 56-year-old male presented with posterior hip dislocation and comminuted fracture of ipsilateral wall and column of the acetabulum, and femoral neck following a high energy trauma. He was managed by acetabular reconstruction using femoral head structural autograft combined with acute primary uncemented THA. At 2-year follow-up, the patient had good functional outcome with a satisfactory range of motion without any difficulty in weight-bearing and doing his daily activities.

Conclusion: Although uncommon, acetabular reconstruction using femoral head structural autograft and acute primary uncemented THA is a viable alternative treatment option compared to ORIF in middle-age patients with fracture of ipsilateral neck and acetabulum. This facilitates post-operative rehabilitation and avoids further operations for possible developing AVN or secondary arthritis.