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Gepubliceerd in: Journal of Foot and Ankle Research 1/2014

Open Access 01-04-2014 | Meeting abstract

Biomechanical assessment of two different surgical treatments for the correction of flat foot

Auteurs: Lisa Berti, Giulia Celin, Paolo Caravaggi, Sandro Giannini, Alberto Leardini

Gepubliceerd in: Journal of Foot and Ankle Research | bijlage 1/2014

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Introduction

The flat foot is a very frequent deformity in orthopedics and can be observed at different levels of severity already in childhood and infancy. The possible functional alterations associated with flat feet are not fully established. These can result in critical clinical consequences, such as secondary deformities of the forefoot and lower limb, pain and muscle fatigue. The prescription of orthotics or indication for surgical interventions are still much debated. A diagnosis based only on foot morphology is not sufficient to decide the therapeutic approach. In fact, the degree of severity of the deformity and the effects of treatments require also careful functional assessment. This study aims at investigating by means of movement analysis the effects of two different surgical treatments for severe flat foot.

Methods

Ten children (11.3 ± 1.6 yrs, 19.7 ± 2.8 BMI) were operated for the correction of flat foot [1, 2] in both feet. One foot was corrected with a calcaneo-stop method, i.e. a screw implanted into the calcaneus, and the other with an endoprosthesis implanted into the sinus-tarsi. Gait analysis was performed pre- and 12 month post-operative, using a 8-camera motion system (Vicon, UK). An established protocol for lower limb [3] and a multi-segment foot kinematic analysis [4] were used to calculate joint rotations and moments during three walking trials for each subject.

Results

Significant differences in standard X-ray measurements were observed between pre- and post-op, but not between feet. Analysis of the kinematic variables revealed important functional corrections. In particular, joint rotations at the ankle (Figure 1, left) and those between the metatarsus and calcaneus segments (Figure 1, right) improved significantly between pre- and post-op. Ground reaction force showed that the deficits in propulsion and stability pre-op were resolved in both feet, i.e. with both implants.

Conclusion

The combined lower limb and multi-segment foot kinematics analyses was found adequate and provided a thorough and accurate functional assessment of the entire limbs. Both surgical treatments enabled good restoration of the normal kinematics of the foot and of the lower limb joints. This population will be monitored further to assess the functional progresses in time; preservation, or even improvement, of these results, are expected.
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Literatuur
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2.
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go back to reference Leardini A, et al: A new anatomically based protocol for gait analysis. Gait Posture. 2007, 26 (4): 560-71. 10.1016/j.gaitpost.2006.12.018.CrossRefPubMed Leardini A, et al: A new anatomically based protocol for gait analysis. Gait Posture. 2007, 26 (4): 560-71. 10.1016/j.gaitpost.2006.12.018.CrossRefPubMed
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go back to reference Leardini A, et al: Rear-foot, mid-foot and fore-foot motion during the stance phase of gait. Gait Posture. 2007, 25 (3): 453-62. 10.1016/j.gaitpost.2006.05.017.CrossRefPubMed Leardini A, et al: Rear-foot, mid-foot and fore-foot motion during the stance phase of gait. Gait Posture. 2007, 25 (3): 453-62. 10.1016/j.gaitpost.2006.05.017.CrossRefPubMed
Metagegevens
Titel
Biomechanical assessment of two different surgical treatments for the correction of flat foot
Auteurs
Lisa Berti
Giulia Celin
Paolo Caravaggi
Sandro Giannini
Alberto Leardini
Publicatiedatum
01-04-2014
Uitgeverij
BioMed Central
Gepubliceerd in
Journal of Foot and Ankle Research / Uitgave bijlage 1/2014
Elektronisch ISSN: 1757-1146
DOI
https://doi.org/10.1186/1757-1146-7-S1-A52

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