micrografts

Micrografts are very small tissue grafts used in several fields, most notably in medicine for wound repair and reconstruction, and in horticulture for plant propagation. In medical contexts, a micrograft refers to a tiny piece of tissue transplanted from a donor site to a recipient site to promote healing, coverage, or contouring of defects. These grafts are typically autografts (from the patient) or allografts (from a donor) and are prepared by dissecting donor tissue into small fragments that contain limited numbers of cells or hair follicles. When placed appropriately, micrografts can help achieve irregular wound closure with reduced donor-site morbidity, but they require careful handling and secure immobilization to maximize graft take and minimize displacement or infection.

In dermatologic and plastic surgical applications, micrografts may be used for burns, complex wounds, or scar revision, with outcomes influenced by graft viability, recipient bed vascularity, and postoperative care. The technique aims to balance minimal donor tissue use with effective reconstruction and cosmetic results.

In horticulture, the term micrografting describes grafting very small plant tissue fragments, often containing meristematic tissue, onto a rootstock. This approach supports rapid clonal propagation, allows propagation of difficult-to-root species, and can help preserve desirable genetic traits. Successful micrografting depends on sterile technique, precise excision, and good cambial alignment between scion fragment and rootstock.

Overall, micrografts represent a niche method of tissue transfer that prioritizes small size, careful handling, and context-specific goals across medical and horticultural applications.