Zunaira salehabout 6 hours ago

Principles of incision

(A) When passing through the soft tissue of mucosa, the needle should enter the surface of tissue at a right angle. (B) The needle holder should be turned so the needle passes easily through tissue at a right angle. (C) If the needle enters soft tissue at an acute angle and is pushed (rather than turned) through tissue, tearing of the mucosa with the needle or with the suture is likely to occur (D).