Analysis of clinical outcome in open reduction and internal fixation for displaced acetabular fracture

Objective To evaluate the long-term results of open reduction and internal fixation for the treatment of acetabular fracture,and discuss the factors which influence the long-term results Methods According to Letournel-Judet classification,23 cases were simple fractures,and 31 cases complex fractures.All fractures displaced more than 3 mm.16 cases were combined with posterior hip dislocation,13 cases with central hip dislocation,and 17 cases with femoral head damage.All the cases were treated with open reduction and internal fixation.42 cases were operated within 2 weeks,12 cases were operated after 3 weeks of trauma.Results All cases were followed up with an average of 38 months,with Mattas joint function evaluation system and Libergall radiography evaluation system.The percent of successful outcomes was 79.6%.5 cases (9.3%) were treated with total hip replacement after 3 years.Conclusion Open reduction and internal fixation can result in a satisfactory clinical outcome.Four factors were found to influence the clinical outcome:Type of fractures(according to Letournel-Judet classification),cartilage damage of the femoral head,quality of reduction and operation time after trauma,which implies that traumatic degree of the acetabulum directly influences the prognosis.