The corner stitch is a common suture technique. It used to close

wound A wound is any disruption of or damage to living tissue, such as skin, mucous membranes, or organs. Wounds can either be the sudden result of direct trauma (mechanical, thermal, chemical), or can develop slowly over time due to underlying diseas ...

s that are angled or Y-shaped without appreciably compromising blood supply to the wound tip. The corner stitch is a variation of the horizontal mattress stitch, and is sometimes called the "half-buried horizontal mattress stitch". The needle enters the skin on one side of the obtuse angle of the wound, passes through the deep

dermis The dermis or corium is a layer of skin between the epidermis (skin), epidermis (with which it makes up the cutis (anatomy), cutis) and subcutaneous tissues, that primarily consists of dense irregular connective tissue and cushions the body from s ...

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 The epidermis is the outermost of the three layers that comprise the skin, the inner layers being the dermis and Subcutaneous tissue, hypodermis. The epidermal layer provides a barrier to infection from environmental pathogens and regulates the ...

on the side of the obtuse angle, adjacent to the initial entry point.

References

Surgical stitches {{surgery-stub