Complex Bilateral Posterior Hip Dislocation with a Long-term Follow-up-A Case Report.

Bilateral hip dislocations are among the rarest traumatic incidents. We report a case of a 45-year-old, opium-addicted man with bilateral posterior hip dislocation and bilateral femoral head fractures proximal to the fovea with more comminution on the left side. After an unsuccessful closed reduction attempt, surgical reduction and internal fixation of the left and right femoral heads were performed on admission and 72 hours later. He was readmitted because of acute deep vein thrombosis (DVT) on the left side after six weeks and left femoral head avascular necrosis (AVN) after 14 months. All complications occurred on the left side regardless of the sooner intervention in this side compared with the right side. This may imply that the severity of the initial trauma could be a more important risk factor for AVN rather than other factors in case the reduction is delayed for more than six hours.