Clinical, cosmetic and investigational dermatology
A First-Principles Biomechanical Analysis of Graft Popping in Sharp Implanter Hair Transplantation
By Park JH.
Abstract
Objective
To develop a first-principles biomechanical framework that may explain graft popping in sharp implanter hair transplantation and to apply it to two high-risk geometries-the anterior hairline and the parietal whorl.
Methods
This theoretical analysis used simplified first-order geometric approximations of force-vector decomposition, bevel-tip geometry, scalp elasticity, and recipient-site pressure dynamics; no ex vivo or clinical measurements were performed. The model was applied to acute insertion angles and radial whorl implantation.
