Is there an Increase in Valgus Deviation in Tibial Distraction Using the Lengthening Over Nail Technique?

Clinical Orthopaedics and Related Research
Hoon ParkDong Hoon Lee

Abstract

During tibial lengthening, the soft tissues of the posterolateral compartment produce distraction-resisting forces causing valgus angulation. Although this occurs with the classic Ilizarov method, whether a valgus deformity develops with the lengthening over nail (LON) technique is questioned, because the intramedullary nail is thought to resist deforming forces and adequately maintain alignment of the distracted bone. The purposes of this study were to (1) determine the amount of valgus deviation during tibial lengthening with the LON technique; and (2) analyze the factors that may be associated with valgus deviation with the LON technique. Between June 2009 and September 2013, we performed 346 tibial lengthenings using the LON technique, lengthening and then nail technique, or lengthening with an intramedullary lengthening device. Sixty patients (120 tibias) who underwent bilateral lower leg lengthening with the LON technique were enrolled in this retrospective study. To limit the number of variables, we analyzed only the right tibia in all patients (60 tibias). The mean followup was 42 months (range, 26-71 months). The mean age of the patients was 25 years (range, 18-40 years). There were 36 male and 24 female patients. The ...Continue Reading

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Citations

Sep 25, 2017·Journal of Orthopaedic Trauma·Stephen M Quinnan
Jan 29, 2021·Strategies in Trauma and Limb Reconstruction·Sally Elizabeth WrightPeter Calder

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