Subtalar arthrodesis versus flexor digitorum longus tendon transfer for severe flatfoot deformity: an in vitro biomechanical analysis.

Abstract

We defined the mechanical behavior of the foot after an operation for treatment of the flatfoot deformity, subtalar arthrodesis, and compared results with those from flexor digitorum longus tendon transfer. Twelve fresh-frozen human foot specimens were used. Supporting elements were sectioned to create a flatfoot deformity. To simulate midstance phase of gait, loads were applied axially to the plantar foot and to five tendons. Reduction of deformity in metatarsal-talar, calcaneal-talar, and talar-tibial positions was achieved and was significantly greater after subtalar arthrodesis operation than after flexor digitorum longus transfer.

• Authors: H B Kitaoka, Z P Luo, K N An
• Journal: Foot & ankle international (Foot Ankle Int) Vol. 18 Issue 11 Pg. 710-5 (Nov 1997) ISSN: 1071-1007 [Print] United States
• PMID: 9391816 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, P.H.S.)

Topics

• Adult
• Aged
• Aged, 80 and over
• Arthrodesis (methods)
• Biomechanical Phenomena
• Bone Screws
• Cadaver
• Female
• Flatfoot (physiopathology, surgery)
• Humans
• Male
• Middle Aged
• Subtalar Joint (surgery)
• Tendon Transfer