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Metaphyseal Clamshell Osteotomy for Long Bone Deformity
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Abstract
• Metaphyseal malunions and nonunions of the lower extremity pose a challenge in the setting of complex, multiplanar deformity and poor bone quality
• Optimal treatment corrects all parameters of deformity and provides stable fixation for early weight bearing and rehabilitation
• Current options for correction include single and double cut osteotomies stabilized with plate fixation, or gradual correction with fine wire circular fixation
• Both classic osteotomies and fine wire circular frames have significant limitations
• The clamshell osteotomy was developed to simplify the correction of tibial and femoral diaphyseal malunions and nonunions, but had not been studied for use in metaphyseal and meta-diaphyseal deformities.