The influence of XXXX on the gliding resistance of tendons about the ankle.

@entity12318 @entity924 @entity409 @entity397 @entity85 @entity1795
BACKGROUND: Various @entity924 occur about the ankle, but there are few publications investigating their etiology or pathoanatomy. The purpose of this investigation was to determine the gliding resistance of the tendons about the posteromedial ankle: the posterior tibial (PT), flexor digitorum longus (FDL), and @entity1795 ( @entity1795 ) tendons. MATERIALS AND METHODS: The gliding abilities of the posterior tibial, flexor digitorum longus, and @entity1795 tendons at the ankle-hindfoot level were compared, in terms of gliding resistance, with use of a system that was developed in this laboratory. Six cadaveric specimens were used and tested in a dorsiflexed position, then in simulated @entity12318 in a dorsiflexed position. RESULTS: The gliding resistance was found to be significantly greater in the simulated @entity12318 in dorsiflexion compared to the dorsiflexed position with an intact arch for the PT, FDL, and @entity1795 tendons. The gliding resistance was significantly higher in the PT tendon than FDL or @entity1795 tendons in the @entity12318 /dorsiflexion condition. There was no significant difference between the FDL and @entity1795 tendons in resistance in either condition. CONCLUSION: We concluded that the gliding ability of the PT tendon was inferior to that of the FDL and @entity1795 tendons in a simulated @entity12318 model. CLINICAL RELEVANCE: The findings of the present study are consistent with the clinical observations that @entity924 and @entity397 of the PT tendon commonly occurs at the malleolar level, whereas FDL and @entity397 do not. A pre-existing flexible @entity85 may be associated with PT @entity409 in the adult due to poor gliding ability of the PT tendon.
