Arthroscopic treatment for avulsion fracture of tibial intercondylar anterior eminence:report of 30 cases / 第三军医大学学报

ABSTRACT

Objective To investigate the outcomes of arthroscopic reduction and internal fixation with cannulate lag screw for avulsion fracture of tibial intercondylar anterior eminence.Methods From May 2004 to December 2007,30 cases of tibial intercondylar anterior eminence avulsion fracture were treated by arthroscopic reduction and fixation with cannulated lag screw.Among the patients,there were 10 females and 20 males,ranging from 15 to 79 years old with an average age of 32.0.There were 12 fresh fractures and 18 old fractures.According to Meyers-McKeever-Zaricnyl's classification systems,there were 8 cases of type Ⅱ,15 cases of type Ⅲ,and 7 cases of type Ⅳ.Patients were encouraged to do postoperative rehabilitation,such as active joint extension and flexion,exercise of isometric contraction of quadriceps femoris.The treatment outcomes were evaluated by Lysholm and Irrgang knee score system.Results All patients were followed up for 3 months to 60 months(averaging 31.2 months).X rays revealed bony healing 2 months after operation.The joints were stable.Negative Lachaman and drawer and jerk tests were found in all cases,and there was no dysfunction in the knee joints.Lysholm scores were increased from(60.8?1.5)to(95.5?3.5)while Irrgang scores increased from(55.5?3.3)to(90.5?2.5).Conclusion Arthroscopic treatment of avulsion fracture of tibial intercondylar anterior eminence is an easy approach with minimal invasion,and has reliable reduction and fixation with satisfied results.