A new elevating metatarsal osteotomy: geometrical design and applications.

Emilio Wagner, Cristián Ortiz, Andrés Keller, Maximiliano Espinosa, Sergio Arellano, Paulina de la Fuente, Pablo Wagner

Research output: Contribution to journalArticlepeer-review

Abstract

For metatarsalgia and lesser toe deformities, a commonly performed procedure is the Weil osteotomy, which inevitably depresses the metatarsal head, changing the intrinsic muscle axis and generating phalanx extension. The objective of this study is to present a new metatarsal osteotomy that shortens or lengthens and elevates the metatarsal head, the elevating metatarsal osteotomy (EMO), with its geometrical analysis and possible applications. A geometrical model was designed, planning an oblique subcapital osteotomy with slice resection and distal displacement. A trigonometric analysis was done to calculate how to shorten, elevate, or lengthen the metatarsal head. The EMO elevates the head in one-third of the width of the resected slice. Distal and dorsal displacement of the metatarsal head results in an elevation and lengthening of the metatarsal bone (60% elevation and 65% lengthening). Performing an elevating metatarsal osteotomy will lengthen and elevate the metatarsal head, which sometimes is necessary when treating toe deformities and instability.
Original languageAmerican English
Pages (from-to)299-303
Number of pages5
JournalJournal of surgical orthopaedic advances
Volume22
Issue number4
DOIs
StatePublished - 1 Jan 2013

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