Nano-Fat Grafting for Post-Burn Scars on the Chest, Shoulders, and Back

Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-50
SponsorAssiut University

About this trial

This study aims to evaluate the effectiveness of nano-fat grafting in treating hypertrophic scars caused by burns on the chest, shoulders, and back.

Burn scars in these specific areas are often difficult to treat because the skin is under constant tension and motion, which can prolong inflammation and worsen the scar. While conventional scar treatments like silicone patches, pressure garments, and steroid injections are widely used, they do not always completely restore normal tissue. Nano-fat grafting is emerging as a promising regenerative option. This procedure involves taking a small amount of the patient's own fat and processing it into a liquid that is rich in healing cells. This liquid is then injected directly into the scar to potentially improve skin texture, color, and flexibility.

The study will enroll 55 participants between the ages of 18 and 50. To be eligible, patients must have a post-burn hypertrophic scar on their chest, shoulder, or back that is less than 6 months old.

During the study, doctors will harvest a small amount of fat from the patient's abdomen or thighs using a small tube. This fat will be carefully washed, processed, and passed through a special filter to create liquid nano-fat. The liquid is then gently injected into the scar tissue.

Researchers will monitor the patients and evaluate the scars at 1, 3, and 6 months after the injection. They will use standard clinical scar assessments (the Vancouver Scar Scale and the Patient and Observer Scar Assessment Scale) alongside photographs to measure improvements in scar color, thickness, pliability, and overall appearance, as well as patient-reported symptoms like pain and itching.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age 18 to 50 years.

Presence of post-burn hypertrophic scars located on the chest, shoulders, or back.

Age of the scar is less than 6 months.

Disqualifiers

Active infection or ulceration at the site of the scar.

Patients with systemic connective tissue diseases or bleeding disorders.

Hypertrophic scars older than 6 months.

History of keloids or previous surgical excision of the same scar.

Trial design

Design model

Single group

Treatments tested in this trial

  • Autologous Nano-Fat Grafting

    Procedure/Surgery

    Fat is harvested from the patient's abdomen or thighs via a 3-mm cannula. It is then washed with saline, emulsified by shifting it between two 10cc syringes for 30 passes, and passed through a nano-filter to create liquid nano-fat. This autologous product is injected intradermally directly into the scar using a 27G or 30G needle until slight blanching occurs.

Treatment groups

55 Participants
are divided into 1 treatment group
Group A: Nano-Fat GraftingExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Change in Vancouver Scar Scale (VSS) Total Score

The Vancouver Scar Scale (VSS) is a standard clinical assessment tool used to evaluate scar quality. It assesses four parameters: pigmentation (scored 0-2), vascularity/color (scored 0-3), pliability (scored 0-5), and height (scored 0-3). The individual scores from these four parameters are summed to yield a total score ranging from 0 to 13. A total score of 0 represents normal, healthy skin, whereas a higher score (up to a maximum of 13) indicates a more severe, pathological hypertrophic scar.

Time frame
Baseline, 1 month, 3 months, and 6 months post-operatively.

Secondary outcomes

Other outcomes

Locations

This trial has no locations.

Sponsors and contacts

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