JOURNAL ARTICLE

A new surgical procedure for iatrogenic hallux varus: reverse transfer of the abductor hallucis tendon: a report of 7 cases

Thibaut Leemrijse, Bao Hoang, Pierre Maldague, Pierre-Louis Docquier, Bernhard Devos Bevernage
Acta Orthopaedica Belgica 2008, 74 (2): 227-34
18564481
Iatrogenic hallux varus is a possible complication of hallux valgus surgery following Mc Bride or Scarf osteotomy, with or without Akin osteotomy of the first phalanx. It may also occur following chevron osteotomy or Keller's procedure. One possibility for surgical revision of iatrogenic hallux varus is reconstruction of the lateral stabilising soft-tissue components of the first metatarsophalangeal joint. Until now, only dynamic tendon transfers, possibly combined with interphalangeal fusion, have been described. The aim of our study was to develop a static, anatomic reconstruction procedure. A new surgical technique of ligamentoplasty using the abductor hallucis tendon is described. The new method was applied in 7 feet (5 patients) with a mean follow-up over two years. Hallux varus deformities were operated by transplantation of the abductor hallucis tendon. Subsequent radiographs showed correction of most of the factors considered to be responsible for the iatrogenic deformity. The American Orthopaedic Foot and Ankle Society (AOFAS) hallux metatarsophalangeal-interphalangeal (MTP-IP) score improved from 61 to 88. This new technique is a reliable, anatomic reconstruction with use of the tendon involved in the pathogenesis of the hallux varus deformity. No other functional tendon is used.

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