الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 113 |  |  |
| | | from | 113 | | |
Abstract
The posterior acetabular wall fractures accounts for 25% of all acetabular fractures.only 30% of posterior acetabular wall fractures involve asingle large fragment, The majority are multifragmentary or have areas of impaction.Most acetabular fractures occur in the setting of significant trauma secondary to either a motor vehicle accident or a high-velocity fall. Blunt force is exerted on the femur, passes through the femoral head, and is transferred to the acetabulum. The direction and magnitude of the force, as well as the position of the femoral head, determine the pattern of acetabular injury.Operative treatment is indicated for an unstable and/or incongruent hip joint. Operative management usually offers the best chance of preserving long-term joint function, but only if an anatomically reconstructed acetabulum can be achieved without complication. The keys to surgical success include maintaining the viability of the fracture fragments and the femoral head itself, using bone grafts and buttress plating to support elevated and comminuted fragments, and protecting the neurovascular structures at risk.Complications can include sciatic nerve injury (incidence, 3% to 18%), secondary osteoarthritis, heterotopic ossification (7% to 20%), and osteonecrosis of the femoral head (5% to 8%). Despite the relative simplicity of this acetabular fracture, unsatisfactory outcomes after surgical repair of the posterior wall occur in at least 18% to 32% of cases, results that are worse than for most of the other more complex acetabular fracture patterns.