From the Research
For punch biopsies, allowing the wound to heal by second intention is a viable alternative to suturing, as it results in equivalent scar appearance and lower costs, as shown in a study published in 2005 1. When considering the type of sutures to use after a punch biopsy, it's essential to weigh the benefits and drawbacks of different materials and techniques.
- Non-absorbable sutures like nylon or polypropylene are often recommended for facial closures due to their excellent tensile strength and minimal tissue reaction.
- However, absorbable sutures like polyglactin (Vicryl) or poliglecaprone (Monocryl) can be used as alternatives, especially in areas where suture removal may be challenging or unnecessary. Some studies have compared the outcomes of different suture materials, such as a 2000 study that found no significant difference between nylon and polyglactin 910 in the closure of punch biopsy sites 2. Additionally, a 2020 study compared non-absorbable silk and absorbable polyglactin sutures for external ptosis repair, finding that silk sutures may be superior in certain situations 3. However, the most relevant study for punch biopsies is the 2005 study that compared primary closure with second-intention healing, finding that the two methods resulted in equivalent scar appearance and patient satisfaction 1. In terms of specific suture sizes, 3-0 or 4-0 non-absorbable sutures are often used for facial closures, while 4-0 or 5-0 sizes are suitable for other body areas. It's also important to consider the technique used for wound closure, with simple interrupted sutures being sufficient for most punch biopsy sites. Ultimately, the choice of suture material and technique should be based on the individual patient's needs and the surgeon's preference, taking into account factors such as cosmesis, wound tension, and patient comfort.