Sharp Vs Blunt needle injection technique for Autologous Fat Grafting in Burn Scars: A Comparative study

Area of Science:

• Regenerative Medicine
• Plastic Surgery
• Dermatology

Background:

• Autologous fat grafting shows potential for burn scar regeneration.
• The optimal injection technique for fat grafting in burn scars is not well-established.
• This study investigates sharp versus blunt needle techniques for adipose tissue transplantation.

Purpose of the Study:

• To compare the efficacy and safety of sharp versus blunt needle techniques in autologous fat grafting for burn scar improvement.
• To evaluate the impact of different injection methods on scar quality parameters.
• To assess patient and observer-reported outcomes and complication rates.

Main Methods:

• Split-scar, bilateral comparison in 19 patients with mature burn scars.
• Standardized fat harvesting, processing, and injection at 0.5 cc/cm².
• Clinical scar assessment using Patient and Observer Scar Assessment Scale (POSAS) at baseline and 6 months.

Main Results:

• Both sharp and blunt needle injections significantly improved scar pliability, pigmentation, and overall appearance.
• No statistically significant differences were observed in efficacy between the two techniques.
• Complication rates were similar for both sharp and blunt needle fat injections.

Conclusions:

• Autologous fat grafting effectively improves burn scar quality irrespective of needle technique.
• Sharp needle injection is technically easier and faster than blunt needle injection.
• Both methods demonstrate comparable safety profiles for burn scar treatment.