Pretrimmed versus Direct Nonshaven Follicular Unit Extraction

Area of Science:

• Hair transplantation
• Dermatologic surgery
• Regenerative medicine

Background:

• Shaving the donor area is a significant deterrent for follicular unit extraction (FUE) patients.
• Nonshaven FUE (NS-FUE) is a viable alternative when linear scars, pain, or scalp laxity are concerns.
• NS-FUE offers a solution for patients seeking less invasive hair restoration.

Purpose of the Study:

• To compare the efficacy of pretrimmed versus direct nonshaven FUE (NS-FUE) techniques.
• To evaluate time efficiency, graft transection rates, and hair density between the two NS-FUE methods.
• To provide insights into the optimal application of NS-FUE based on procedural outcomes.

Main Methods:

• A comparative study involving 42 patients undergoing hair transplantation.
• Both pretrimmed and direct NS-FUE were performed within the same session per patient.
• Key metrics included time to harvest 50 grafts, transection rate, and calculated graft density.

Main Results:

• Direct NS-FUE was significantly faster (2.6 minutes) than pretrimmed NS-FUE (3.4 minutes) for punching 50 grafts (P < 0.001).
• Transection rates were comparable between methods (8.8% pretrimmed vs. 7.5% direct; P > 0.05).
• Pretrimmed NS-FUE yielded a significantly higher graft density (2.23 hairs/graft) compared to direct NS-FUE (2.15 hairs/graft; P < 0.05).

Conclusions:

• Both pretrimmed and direct NS-FUE are effective hair transplantation techniques.
• The choice between pretrimmed and direct NS-FUE depends on surgeon preference, skill, and specific patient case requirements.
• NS-FUE provides a valuable option for hair restoration, accommodating diverse patient needs and preferences.