Structural and material properties of human foot tendons

NewsBot · May 28, 2016

Members do not see these Ads. Sign Up.
Structural and material properties of human foot tendons
Enrique Morales-Orcajol, Ricardo Becerro de Bengoa Vallejo, Marta Losa Iglesias, Javier Bayod
Clinical Biomechanics; in press

Highlights
?Two different tendon behaviors were distinguished.
?Stress?strain tendon curves exhibit proportionality between regions.
?A reference of the mechanical properties of foot tendons was presented.
?A criterion to quantify the regions of the stress?strain curve were defined.
Click to expand...

Backgrounds.
The aim of this study was to assess the mechanical properties of the main balance tendons of the human foot in vitro reporting mechanical structural properties and mechanical material properties separately. Tendon structural properties are relevant for clinical applications, for example in orthopedic surgery to elect suitable replacements. Tendon material properties are important for engineering applications such as the development of refined constitutive models for computational simulation or in the design of synthetic materials.

Methods
One hundred uniaxial tensile tests were performed to obtain the mechanical response of the main intrinsic and extrinsic human foot tendons. The specimens were harvested from five frozen cadaver feet including: Extensor and Flexor tendons of all toes, Tibialis Anterior and Posterior tendons and Peroneus Brevis and Longus tendons.

Findings
Cross-sectional area, load and strain failure, Young's modulus and ultimate tensile stress are reported as a reference of foot tendon mechanical properties. Two different behaviors could be differentiated. Tibialis and Peroneus tendons exhibited higher values of strain failure compared to Flexor and Extensor tendons which had higher Young's modulus and ultimate tensile stress. Stress?strain tendon curves exhibited proportionality between regions. The initial strain, the toe region and the yield point corresponded to the 15, 30 and 70% of the strain failure respectively.

Interpretation
Mechanical properties of the lesser-studied human foot tendons are presented under the same test protocol for different engineering and clinical applications. The tendons that work at the inversion/eversion plane are more deformable at the same stress and strain rate than those that work at the flexion/extension plane.
Click to expand...

NewsBot The Admin that posts the news.

Structural Index Score

Structural hallux limitus

Structural and Functional Characteristics of the Medial Longitudinal Arch

Effects of foot position on skin structural deformation

An ultrastructural study of Trichophyton rubrum induced onychomycosis

Structural factors associated with hallux limitus/rigidus

75 yo runner with structural hallux limitus

Share This Page