Tratamiento de defectos masivos de tibia. Técnica de transporte óseo con fijador AO

Abstract

Introduction: Bone transport is the slow transportation of the bone fragment along a bone defect, providing distraction osteogenesis.Objective: To describe the surgical technique of bone transport using the AO external fi xator and to present the result of this procedure in tibial diafi sis defects of more than 4 cm long, which were the result of severe open fractures or infected no unions.Material and Methods: This is a retrospective, descriptive study of 14 patients treated in several centers in Montevideo from April 2011 to April 2015.Results: The average age of the patients was 32 years (15-32), the average bone loss 6,7 cm (4-11), the distraction speed 0,58 mm/day, the mean distraction period 92 days (35-172) and the mean time external fi xation was 194 days. The mean follow up was 13 months (6-27). All patients needed an additional surgical procedure in the docking site. Bone healing was accomplished in 9 patients and there were 2 no unions. There were 2 further patients who abandoned the treatment and another patient who requested amputation. At the latest follow up there was no recurrence of infection.Conclusion: Bone transport using AO external fi xator, is a valid alternative for the treatment of segmental bone loss of the diafi sis of the tibia with or without infection*Arbeitsgemeinschaft fur Osteosynthesefragen