Ilizarov bone transport as a treatment of congenital pseudarthrosis of the tibia: a long-term follow-up study

Abstract

Purpose Most studies on congenital pseudarthrosis of the tibia (CPT) report on the short-term union rate and refracture rate but do not take into account the long-term outcome. This review includes patients treated with an Ilizarov bone transport, who all reached skeletal maturity. It describes long-term results and highlights any prognostic factors that could predict the final outcome. Methods The records of patients with CPT treated with an Ilizarov bone transport in our institution were retrospectively evaluated. Results A total of 12 consecutive patients were studied. The mean follow-up was 24.5 years (range 6–39 years). Primary consolidation was seen in ten patients (83 %). Half of these patients had a refracture. At final follow-up, eight patients experienced union and four remained un-united, of whom one had an amputation. Conclusions The present data confirm a good primary healing rate. However, tibial union at final follow-up was only seen in 67 %, indicating that refracture is the main issue. United bone is often of inferior biological and mechanical quality, so lifetime protection with intramedullary devices, braces or a combination of both is recommended.