Limits...
Skin displacement analysis (SDA): a tool for the quantitative evaluation of skin movements elicited by underlying muscles in the face and neck area.

Proebstle TM - Clin Cosmet Investig Dermatol (2011)

Bottom Line: By using removable grid markings and digital photographs, skin displacement analysis (SDA) was performed on 13 patients pre-treatment and on Days 1, 2, 3, and 7 after injection of 18 units of botulinum toxin type A (BoNT/A) in the fronto-glabellar area.After injection of BoNT/A, maximum horizontal skin displacement 30 mm lateral to the midline showed a mean reduction (±SD) to 62% ± 23% at Day 2 and to 17% ± 16% at Day 7; corresponding values 15 mm lateral to the midline were 62% ± 29% and 15% ± 20%, respectively.In all cases, the reduction in horizontal skin displacement compared with pre-injection levels was statistically significant (P < 0.001).

View Article: PubMed Central - PubMed

Affiliation: Department of Dermatology, University Clinic of Mainz, Mainz, Germany.

ABSTRACT

Background: Quantitative numerical analysis of skin displacement triggered by muscles inserting the overlaying skin would be useful for monitoring the inhibition of mimetic muscles.

Methods: By using removable grid markings and digital photographs, skin displacement analysis (SDA) was performed on 13 patients pre-treatment and on Days 1, 2, 3, and 7 after injection of 18 units of botulinum toxin type A (BoNT/A) in the fronto-glabellar area.

Results: At baseline, amplitudes of horizontal skin displacement with fronto-glabellar contraction showed a linear increase along the eyebrow laterally from the midline; mean values (±standard deviation [SD]) 15 and 30 mm lateral to the midline were 3.2 ± 1.0 mm (range, 1.9-4.9 mm) and 6.5 ± 1.4 mm (range 4.0-8.5 mm), respectively. After injection of BoNT/A, maximum horizontal skin displacement 30 mm lateral to the midline showed a mean reduction (±SD) to 62% ± 23% at Day 2 and to 17% ± 16% at Day 7; corresponding values 15 mm lateral to the midline were 62% ± 29% and 15% ± 20%, respectively. In all cases, the reduction in horizontal skin displacement compared with pre-injection levels was statistically significant (P < 0.001).

Conclusion: SDA is a feasible method for the quantitative evaluation of skin movements elicited by muscles inserting the overlaying skin in the face and neck area.

No MeSH data available.


Related in: MedlinePlus

A) Pre-treatment horizontal skin displacement by maximum glabellar contraction in 13 individual patients. Analyzed grid points of interest ran laterally from the midline, immediately above the eyebrow. B) Mean values ± standard deviation of the 13 patients in Figure 2A.
© Copyright Policy
Related In: Results  -  Collection


getmorefigures.php?uid=PMC3108281&req=5

f2-ccid-4-027: A) Pre-treatment horizontal skin displacement by maximum glabellar contraction in 13 individual patients. Analyzed grid points of interest ran laterally from the midline, immediately above the eyebrow. B) Mean values ± standard deviation of the 13 patients in Figure 2A.

Mentions: Horizontal skin displacement from a relaxed to a contracted state above the eyebrow showed a linear correlation up to 35 mm lateral to the midline; horizontal skin displacement started to plateau at 40 and 45 mm (Figures 2A and 2B). The mean (±SD) amplitude of horizontal skin displacement 15 mm lateral to the midline was 3.2 ±1.0 mm, with a range of 1.9−4.9 mm (Table 1). The mean (±SD) amplitude of horizontal skin displacement doubled at 30 mm lateral to the midline to 6.5 ±1.4 mm, with a range of 4.0−8.5 mm (Table 1).


Skin displacement analysis (SDA): a tool for the quantitative evaluation of skin movements elicited by underlying muscles in the face and neck area.

Proebstle TM - Clin Cosmet Investig Dermatol (2011)

A) Pre-treatment horizontal skin displacement by maximum glabellar contraction in 13 individual patients. Analyzed grid points of interest ran laterally from the midline, immediately above the eyebrow. B) Mean values ± standard deviation of the 13 patients in Figure 2A.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3108281&req=5

f2-ccid-4-027: A) Pre-treatment horizontal skin displacement by maximum glabellar contraction in 13 individual patients. Analyzed grid points of interest ran laterally from the midline, immediately above the eyebrow. B) Mean values ± standard deviation of the 13 patients in Figure 2A.
Mentions: Horizontal skin displacement from a relaxed to a contracted state above the eyebrow showed a linear correlation up to 35 mm lateral to the midline; horizontal skin displacement started to plateau at 40 and 45 mm (Figures 2A and 2B). The mean (±SD) amplitude of horizontal skin displacement 15 mm lateral to the midline was 3.2 ±1.0 mm, with a range of 1.9−4.9 mm (Table 1). The mean (±SD) amplitude of horizontal skin displacement doubled at 30 mm lateral to the midline to 6.5 ±1.4 mm, with a range of 4.0−8.5 mm (Table 1).

Bottom Line: By using removable grid markings and digital photographs, skin displacement analysis (SDA) was performed on 13 patients pre-treatment and on Days 1, 2, 3, and 7 after injection of 18 units of botulinum toxin type A (BoNT/A) in the fronto-glabellar area.After injection of BoNT/A, maximum horizontal skin displacement 30 mm lateral to the midline showed a mean reduction (±SD) to 62% ± 23% at Day 2 and to 17% ± 16% at Day 7; corresponding values 15 mm lateral to the midline were 62% ± 29% and 15% ± 20%, respectively.In all cases, the reduction in horizontal skin displacement compared with pre-injection levels was statistically significant (P < 0.001).

View Article: PubMed Central - PubMed

Affiliation: Department of Dermatology, University Clinic of Mainz, Mainz, Germany.

ABSTRACT

Background: Quantitative numerical analysis of skin displacement triggered by muscles inserting the overlaying skin would be useful for monitoring the inhibition of mimetic muscles.

Methods: By using removable grid markings and digital photographs, skin displacement analysis (SDA) was performed on 13 patients pre-treatment and on Days 1, 2, 3, and 7 after injection of 18 units of botulinum toxin type A (BoNT/A) in the fronto-glabellar area.

Results: At baseline, amplitudes of horizontal skin displacement with fronto-glabellar contraction showed a linear increase along the eyebrow laterally from the midline; mean values (±standard deviation [SD]) 15 and 30 mm lateral to the midline were 3.2 ± 1.0 mm (range, 1.9-4.9 mm) and 6.5 ± 1.4 mm (range 4.0-8.5 mm), respectively. After injection of BoNT/A, maximum horizontal skin displacement 30 mm lateral to the midline showed a mean reduction (±SD) to 62% ± 23% at Day 2 and to 17% ± 16% at Day 7; corresponding values 15 mm lateral to the midline were 62% ± 29% and 15% ± 20%, respectively. In all cases, the reduction in horizontal skin displacement compared with pre-injection levels was statistically significant (P < 0.001).

Conclusion: SDA is a feasible method for the quantitative evaluation of skin movements elicited by muscles inserting the overlaying skin in the face and neck area.

No MeSH data available.


Related in: MedlinePlus