Comparison of different MyotonPRO probes for skin stiffness evaluation in young women

Background In last years the role of fascia in proprioception and pain has been confirmed in numerous papers, but the real structure of fasciae is not still entirely known. To date, many studies have evaluated the elastic fibres in arteries, ligaments, lungs, epidermis and dermis, but only two studies exist about the elastic fibres in the fasciae, and they did not distinguish between superficial (in the subcutaneous tissue) and deep/muscular fasciae. The aim of the study was to assess the percentage of elastic fibres between superficial and deep fascia. Materials and methods Three full thickness specimens (proximal, middle and distal respectively) were taken from each of four regions of the thigh of three non‐embalmed cadavers: the anterior (Ant), the lateral (Lat), the posterior (Post) and the medial (Med) aspect. Thus, a total of 12 specimens were collected from each analysed thigh and histological Weigert Van Gieson stains was performed. Three sections per specimen were considered for the morphometric analysis. Results In all the specimens the superficial and deep fasciae were clearly recognizable. The difference in percentage of elastic fibres between superficial and deep fasciae in same region for all four was highly significant (p < 0.001). They are abundant in the superficial fascia than deep fascia. Conclusions In the light of these findings is evident that the superficial (in the subcutaneous tissue) and deep fasciae have different elasticity. This difference may improve grading of fascial dysfunction in dermatological diseases as burns, scars and lymphedema to better plan treatments.

Section: Discussionmentioning

confidence: 99%

Elastic Fibres in the subcutaneous tissue: Is there a difference between superficial and muscular fascia? A cadaver study

Pirri

Fede

Petrelli

et al. 2021

“…Values of skin oscillation frequency in three location studied by us were not reported previously, while values of skin stiffness obtained by L-shape MyotonPRO probes in our study for Clavicula (which can be referred to Upper Arm), volar forearm and shin areas seem to be very similar to these noted by MyotonPRO in studies by Dellalana et al, 44 Chen et al 45 in healthy controls groups and to our previous study carried out on smaller group of patients. 47 Highest values of both parameters were noted in the shin area, lower in volar forearm area, while the lowest in the clavicula area.…”

Section: Discussionmentioning

confidence: 82%

“…Furthermore it was used for the assessment of post‐caesarean section scars, and obtained results were compared with unscarred skin 46 . Moreover, a greater reliability of this device using L‐shape probes for assessment of skin stiffness was demonstrated in our previous report 47 …”

Section: Introductionmentioning

confidence: 98%

“…46 Moreover, a greater reliability of this device using Lshape probes for assessment of skin stiffness was demonstrated in our previous report. 47 Therefore, the main purpose of this study was to establish the reference values (mean, ranges) of all five parameters (oscillation frequency, dynamic stiffness, logarithmic decrement, mechanical stress relaxation time and creep), simultaneously recorded by MyotonPRO in three different areas of human body, which are characterized by different proportion of superficial and deeper tissues (clavicula, volar forearm and shin). The secondary goal was to compare obtained values of all collected parameters, among three locations investigated.…”

mentioning

confidence: 99%

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Skin biomechanical and viscoelastic properties measured with MyotonPRO in different areas of human body

Rosicka¹,

Mierzejewska-Krzyzowska²,

Mrówczyński

2021

Self Cite

Background: There is still a lack of clinically practical device, which allows to perform rapid and accurate examination of the skin condition. For this reason, suitability of the MyotonPRO for the assessment of skin biomechanical and viscoelastic parameters was evaluated in this study. The aim of the study was to establish the reference values of five parameters measured by MyotonPRO various locations of human skin. Materials and methods:Oscillation frequency, dynamic stiffness, logarithmic decrement, mechanical stress relaxation and creep were measured at three different skin locations (clavicula, volar forearm and shin), using L-shape short and medium arm probes in 32 young female volunteers. Mean values of obtained parameters recorded by both probes were compared among three skin locations while reliabilities of measurements were assessed. Additionally, relationships between all recorded parameters were examined Results: There were no statistically significant differences between the mean values of five measured parameters obtained with both probes in all investigated areas. However, statistically significant differences of mean values of almost all parameters measured among three places examined were found. Despite considerable differences in mean values of obtained parameters, there were visible strong correlations between some studied parameters in all three investigated areas of skin. Conclusion:It was demonstrated in all locations studied that the higher value of oscillation frequency corresponds to the higher value of dynamic stiffness, moreover such tissue recovers faster to its initial shape, and it was characterized by lower creep values.Such results indicate the existence of identical relationships between the same studied parameters in different areas of skin.

“…Many devices and procedures have already been implemented for the analysis of the most superficial layer. 10,11…”

mentioning

confidence: 99%

Hypodermis involvement in skin disorders: Imaging and functional imaging diagnostic tools

Veronese

Picelli

Smania

et al. 2020

Dermatological diseases often affect not only the superficial part of the dermis but deepen into the hypodermis and sometimes also involve the muscle bundles. This is the case with burns and scars. [1][2][3][4] There is also a whole series of situations that are not considered real pathologies, but fall within esthetic medicine, therefore requiring the intervention of a physician. This is the case with stretch marks. 5 Extension to the hypodermis involves significant problems, such as structural and, sometimes, functional alteration of the entire affected area, 6,7 as well as secondary problems, such as psychological problems, which can affect the patient's quality of life. 8,9 It is therefore useful to develop technologies/methods capable of capturing the aspects of all the anatomical structures that can be involved, in particular those that cannot be reached by direct visual examination, such as the subcutaneous tissue. Many devices and procedures have already been implemented for the analysis of the most superficial layer. 10,11