Contributed by Mika Sinanan, MD, University of
Washington Medical School, Seattle, WA
Photos courtesy of Keith Stone M.D. , University
of Florida, Gainesville, Florida
Polypropylene: a nonabsorbable, monofilament material that
is the least reactive of all suture materials; it is used with
continuous percutaneous suturing. Its disadvantage is that it has
coiled memory, making it difficult to handle.
Nylon: a nonabsorbable suturing material that degrades in
vivo by hydrolysis at a rate of about 125% annually. The
advantages of nylon are good pliability and ease of handling. It is
favored for interrupted percutaneous suture closures. Nylon sutures
are available in monofilament and multifilament construction. Braided
nylon sutures possess the same handling and knot construction
characteristics as silk sutures, but unlike natural fiber, nylon is
relatively nonreactive in tissue.
Synthetic absorbable: absorbable refers to the degradation and
loss of tensile strength within 60 days. Absorption and loss of
tensile strength are not interchangeable. The former is important
only with regard to late suture complications; the latter speaks to
the primary function of the suture -- maintaining tissue
approximation.
Braided synthetic absorbable: useful for interrupted
dermal suture and ligating bleeders.
Monofilament synthetic absorbable: indicated for continuous
dermal suture.
Return to Clinical Update Index | Move on to Needle Tip Selection |
Home | Welcome | Basic Science | Managing Your Residency | Board Review | Opportunities | Links | Contributors | Contact Us