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Tibia Fracture in Staged Limb Salvage Using External Ring Fixation and Intramedullary Nailing: A Report of Two Cases
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Limb salvage for Charcot's neuroarthropathy has been shown to have high complication and failure rates. The aim of our report of two cases it to present a unique complication encountered with staged limb salvage for Charcot's neuroarthropathy. In two cases, patients developed delayed tibial shaft fracture associated with previous wire placement despite insertion of locked intramedullary nail fixation that spanned the delayed fracture. Both patients experienced fractures following advancement of weight after definitive fixation. In both patients, there was noted complication with the sites of the pins and revision of external fixation before fracture. In each case, the fracture was within the construct of the intramedullary fixation and successfully treated with an extended course of nonweightbearing. Complications of external fixation and intramedullary fixation are well reported within the literature; however, tibia fracture is rare. Based on these cases, it would seem prudent to recognize the risk of delayed pin-site complications and ensure adequate length of intramedullary fixation to span the potential areas of stress.
University of Pittsburgh Medical Center, Pittsburgh, PA. Dr. St. John is now with Great Lakes Foot and Ankle Institute, Chesterfield, MI.
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