PURPOSE To evaluate the clinical results of the pilon fractures treated with arthroscopically assisted limited open reduction and Ilizarov external fixation. MATERIALS AND METHODS This is a retrospective study of the clinical result, bone union, complication and postoperative ankle function of 22 pilon fractures treated with arthroscopically assisted limited open reduction and Ilizarov external fixation between January 1999 to March 2004. RESULTS Clinical follow up averaged 16 months, with an average age of 39.2. All patients with type 1 and 2 fracture had excellent or good score by Ovadia and Beals criteria. Closed fractures healed within 13 weeks and open fractures within 16 weeks after surgery in average. Average range of motion of the ankle was 12o dorsiflexion (0~20 degree) and 25o plantar flexion (15~35 degree). CONCLUSION Minimal soft tissue dissection and anatomical reduction are very important factor for minimizing complication and satisfactory ankle function. So, arthroscopically assisted limited open reduction and Ilizarov external fixation is an effective treatment option for tibial pilon fractures.
The pilon fracture result from axial compression and rotational forces causing variable degrees of metaphyseal disruption, articular damage, and malleolar displacement. It is managements are closed reduction and plaster immobilization, skeletal traction, fibular stabilization alone, limited open reduction and extemal fixation, primary arthrodesis, and even immediate amputation.
Recently limited open reduction and external fixation has been proved to provide good clinical results for the severely comminuted or open pilon fractures.
Authors reviewed 20 cases of the pilon fractures. Among them 10 cases were treated with limited open reduction and external fixation from October 1989 to January 1994.
The results were as follows : 1. Age distribution was from 14 years to 77 years(mean ; 47 years).
2. Of the 20 cases, male were 14, and female were 6.
3. The cause of injury were tracffic accident in 10 cases, slip down in 6 and fall from a height in 4.
4. The most frequent type of fractures was type III(12 cases : 60%) according to Ruedi and Allgower classification.
5. Limited open reduction and external fixation(10 cases) has shown better results than classic open recduction and internal fixation for severely comminuted or open pilon fractures.