corner stitch

{{Short description|Suture technique}}

The corner stitch is a common suture technique.{{Citation

| last = Zuber

| first = TJ

| contribution = Skin biopsy, excision, and repair techniques

| title = Soft tissue surgery for the family physician

| location = Kansas City, Missouri

| publisher = American Academy of Family Physicians

| year = 1998

| pages = 100–6

}} It used to close wounds that are angled or Y-shaped without appreciably compromising blood supply to the wound tip.{{cite book

| last1 = Stegman

| first1 = SJ

| last2 = Tromovitch

| first2 = TA

| last3 = Glogau

| first3 = RG

| title = Basics of dermatologic surgery

| location = Chicago

| publisher = Year Book Medical

| year = 1982

| pages = 42–5}}{{cite journal

| last1 = Zitelli

| first1 = JA

| last2 = Moy

| first2 = RL

| title = Buried vertical mattress suture

| journal = The Journal of Dermatologic Surgery and Oncology

| year = 1989

| volume = 15

| issue = 1

| pages = 17–9| doi = 10.1111/j.1524-4725.1989.tb03107.x

| pmid = 2642931

}}

The corner stitch is a variation of the horizontal mattress stitch, and is sometimes called the "half-buried horizontal mattress stitch".{{cite journal

| last = Zuber

| first = Thomas

| journal = American Family Physician

| date = December 15, 2002

| volume = 66

| issue = 12

| pages = 2231–6

| title = The Mattress Sutures: Vertical, Horizontal, and Corner Stitch

| url = http://www.aafp.org/afp/20021215/2231.html

| pmid = 12507160

| access-date = October 23, 2009

| archive-date = May 14, 2008

| archive-url = https://web.archive.org/web/20080514035950/http://www.aafp.org/afp/20021215/2231.html

| url-status = dead

}} The needle enters the skin on one side of the obtuse angle of the wound, passes through the deep dermis of the corner flap, and is re-inserted through the dermis of the other side of the obtuse wound angle. It finally re-emerges through the epidermis on the side of the obtuse angle, adjacent to the initial entry point.{{cn|date=February 2022}}