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01-12-2012 | Oral presentation | bijlage 1/2012 Open Access

Journal of Foot and Ankle Research 1/2012

Biomechanical assessment of children requiring tibialis anterior surgical tendon transfer for residual congenital talipes equinovarus

Journal of Foot and Ankle Research > bijlage 1/2012
Kelly Gray, Paul Gibbons, David Little, Joshua Burns


Congenital talipes equinovarus (CTEV) is a deformity in which the foot is in structural equinus, varus, adductus and cavus and occurs in approximately 1 per 1000 births [ 1]. Despite good initial correction with the Ponseti technique, a tibialis anterior tendon transfer (TATT) is required in 20-25% of cases to correct residual dynamic supination observed during gait. Currently, no reliable or valid biomechanical measures exist to assess the need for, or effectiveness of, surgery.

Materials and method

Between August 2009 to April 2011, 20 children (average age 53 months ± 10 months) with CTEV were assessed prior to a TATT. Assessment included range of movement (Dimeglio Scale), foot alignment in standing (Foot Posture Index), strength (hand held dynamometry), gait (pedobarography) and function (Clubfoot Disease Specific Index). These results were compared to 12 children (average age 48 months ± 12 months) with CTEV who did not require a TATT (controls).


Range of movement and function was significantly less in the TATT group (p=0.001, p=0.006). The TATT group displayed significantly greater supination on the Foot Posture Index (p= 0.032) and significantly less eversion strength compared to the non-surgical group (p<0.001). During gait, feet of the TATT group had less contact area with ground (p=0.044), but increased contact time, particularly in the hindfoot (p=0.001), lateral midfoot (p=0.004) and lateral forefoot (p=0.034). Pressure-time integral was significantly higher in TATT group for medial and lateral hindfoot (p=0.027; p=0.010) and lateral midfoot (p=0.034).


Children with CTEV who require a TATT display objective measureable differences compared to a non-surgical CTEV group. These measures may be useful in identifying which children require a TATT in the future.
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://​creativecommons.​org/​licenses/​by/​2.​0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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