Rationale for Using a Combination of Follicular Units and Slit Grafts in Hair Transplanting

In 2001, Walter P. Unger, M.D., discussed the benefits and drawbacks of using only follicular units (FU) versus a combination of FU and slit grafts in hair transplantation. Unger argued that while follicular unit transplantation (FUT) alone can yield natural-looking results, it may lead to lower hair densities and a higher risk of follicle damage due to less tissue protection. He suggested that combining FU and slit grafts could provide higher densities with a minimal increase in the visibility of grafts, particularly when some hair already exists in the recipient area. Unger recommended an initial session of FUT followed by a session combining both techniques for most patients. Although the document lacks specific patient data or statistical analysis, it includes comparative data and Unger's personal observations. He concluded that a combination of both techniques might offer the best outcomes for hair density and survival, and he planned to report future results after applying this method.