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This study aims to evaluate the effectiveness of cannula- based subcision versus common needle subcision in treatment of posttraumatic atrophic facial scars
In addition to cosmetic issues, atrophic scars can lead to psychological issues like social isolation, low self-esteem, and embarrassment. Subcision (Subcutaneous incision-less surgery) has been used for years to treat a variety of skin depressions, including atrophic acne scars and other depressed scars. Numerous modifications have been made throughout time to this surgical method to make it easier and more efficient. Although needle subcision is a straightforward, simple, useful, and practical procedure, it has many side effects and the overall success in this procedure is mild to moderate. So, in this study we evaluated the effectiveness of cannula- based subcision versus common needle subcision in treatment of posttraumatic atrophic facial scars.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Cannula arm | Active Comparator | the cannula's 18 gauge tip was pointed upward and approximately parallel to the skin's surface when it was put into the superficial dermis, 1-2 millimeters away from the targeted scar. In order to completely remove fibrous tissue from the superficial dermis, a lancing motion (linear inserting-withdrawing needle action) was utilized first. |
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| Needle arm | Active Comparator | The needle's 27 gauge tip was pointed upward and approximately parallel to the skin's surface when it was put into the superficial dermis, 1-2 millimeters away from the targeted scar. In order to completely remove fibrous tissue from the superficial dermis, a lancing motion (linear inserting-withdrawing needle action) was utilized first. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| cannula- based subcision | Procedure | Insertion of a needle into the base of a cutaneous scar to cut fibrous tissue and help new collagen formation. |
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| Measure | Description | Time Frame |
|---|---|---|
| Vancouver scar scale (VSS) | The (VSS) examines vascularity, pliability, pigmentation, and height, yielding a total score that ranges from 0 to 14. The original rating system was as follows: Vascularity (0=normal, 1=pink, 2=red, 3=purple), Pliability (Normal=0, Flat=0, Supple=1, Yielding=2, Firm=3, Ropes=4, Contracture=5), Pigmentation (0=normal, 1=hypo-pigmentation, 2=mixed pigmentation, 3=hyper-pigmentation), and Height (Flat=0 <2 mm=1 2-5 mm=2 >5 mm=2) . | 4 months |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Marwa Mohamed, MD | Sohag University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Sohag University | Sohag | 82524 | Egypt |
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| ID | Term |
|---|---|
| D002921 | Cicatrix |
| D001284 | Atrophy |
| ID | Term |
|---|---|
| D005355 | Fibrosis |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D020763 | Pathological Conditions, Anatomical |
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Each scar was split into two equal halves; the upper right half were treated using a cannula- based subcision approach, while the lower left half was treated using a common needle-based procedure
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The assessor was blinded to the treatment applied to each half of the scar.
| common- needle based subcision | Procedure | Insertion of a cannula into the base of a cutaneous scar to cut fibrous tissue and help new collagen formation. |
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