RESUMO
Objective To investigate the clinical efficacy of posterior anti‐rotation plate plus cancellous screws for treating unicondylar Hoffa fracture and to systematically analyze its injury mechanism ,clinical diagnosis ,treatment method and clinical fol‐low up results .Methods The imageological and clinical data in 9 cases of unicondylar Hoffa fractures treated by anti‐rotation plate plus cancellous screws from March 2009 to April 2014 were retrospectively analyzed .Results All fractures were healed within 4 months .The average follow up time of the patients was 34 months(24~50 months) .Seven cases obtained the anatomic reduction and 2 cases got the satisfactory reduction .The reduction loss and fixation failure were not found in all the cases .One cases of wound infection occurred early after operation and healed within 1 week after anti-infection .One case of knee joint ankylosis complicating pain occurred during the follow up period .According to the KSSs scoring standard ,the knee joint prognosis function scores were ex‐cellent in 4 cases ,good in 4 cases and poor in 1 case .Conclusion Using anti‐rotation plate combined with cancellous screws for con‐ducting the Hoffa fracture fixation can confront the strong shear force beard by femoral condyle with the advantages of rigid fixa‐tion ,reliability fixation and early weight bearing functional exercise .
