Needle-free gauze knot-tying training using human hair: A low-cost, accessible method for basic microsurgical skill...

Area of Science:

• Microsurgical Training
• Surgical Education
• Medical Simulation

Background:

• Traditional microsurgical knot-tying training uses 10-0 nylon suture on gauze.
• Conventional methods present challenges including cost, supply issues, needle loss, and needlestick injuries.

Purpose of the Study:

• To introduce and evaluate a novel needle-free method for gauze knot-tying training using human hair.
• To discuss the educational benefits and limitations of this alternative training approach.

Main Methods:

• A single strand of human hair was manually passed through surgical gauze using forceps.
• Loop formation and knot-tying were performed without a needle.
• The procedure was analyzed in comparison to existing gauze-based training methods.

Main Results:

• Human hair, though slightly thicker and more elastic than 10-0 nylon, can be threaded through gauze without a needle.
• The elasticity of hair presented unique challenges in loop maintenance, knot advancement, and stabilization.
• These challenges are valuable for developing tension control, balanced tightening, and appropriate force application skills.

Conclusions:

• Needle-free training with human hair on gauze maintains the core principles of established methods.
• This technique eliminates barriers related to cost, supply, and needle handling.
• It serves as an effective preparatory exercise before formal microsurgical practice.