Tensile properties of relaxed excised skin exhibiting striae distensae

Pierard, Gérald; Nizet, Jean-Luc; Adant, J. P.; Camacho, Miguel Ángel Martínez; Pans, A.; Fissette, J

doi:10.1080/030919099294311

Cited by 32 publications

(23 citation statements)

References 9 publications

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“…Although the skin is known to be anisotropic for large strains [14], previous shear experiments indicated that for low strains the skin of young adults can be considered isotropic [6, 12]. Our data are at variance with such a contention.…”

Section: Discussioncontrasting

confidence: 57%

Influence of Body Posture and Gravitational Forces on Shear Wave Propagation in the Skin

Nizet¹,

Piérard-Franchimont

Pierard

2001

Dermatology

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The body posture and gravitational forces govern in part the intrinsic skin tensile strength because they influence the orientation of the dermal fibre networks. Our objective was to assess changes in shear wave propagation in the skin according to the body posture and orientation of the gravitational forces. The study was performed in 30 middle-aged women with a normal body mass index. The Reviscometer^® was used to assess the mechanical wave propagation on the volar forearm in extension or flexion. Similar measurements were made on the supra-areolar region of the breast when the trunk was in the horizontal or vertical position. Four measurements were made in each of 4 directions at given angles with regard to the body axis. The device gave reproducible data. Shear wave propagation was influenced by the body posture. The intra-individual variability in shear wave velocity according to the directions of measurements increased when the tissues were in a relaxed position. Skin tensile anisotropy increased in a relaxed body posture. Shear wave propagation may be a convenient non-invasive tool to better identify the natural skin tension lines in the skin, thus refining the orientation of incision during cutaneous surgery.

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Section: Discussioncontrasting

confidence: 57%

Influence of Body Posture and Gravitational Forces on Shear Wave Propagation in the Skin

Nizet¹,

Piérard-Franchimont

Pierard

2001

Dermatology

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“…In some instances, both the structure and mechanical properties of the dermal fibrous networks are altered 27 . Ruptures supervene in the direction of minimal tensions where the tissue is the weakest to sustain the mechanical stress 3,27,28 . As a result, the long axis of striae distensae is orientated along the skin tension lines, and the damages resulting from the rupture occur in the direction normal to the long axis of the striae 29 .…”

Section: Discussionmentioning

confidence: 99%

Striae distensae in darker skin types: the influence of melanocyte mechanobiology

Piérard-Franchimont

Hermanns

Hermanns‐Lê

et al. 2005

J of Cosmetic Dermatology

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“…Force tranductions affect the structure of the dermis 6 and the functions of different cell lineages as well 8–11 . Striae are largely parallel to the relaxed tension lines that show the orientation of minimal skin extensibility 12–14 . They result from a failure of the skin to elongate under low‐intensity forces, with ultimate brittleness of the dermis.…”

Section: Introductionmentioning

confidence: 99%