Prevention of flap Necrosis Medical Assignment Help

Prevention of flap Necrosis

Flap necrosis can be prevented if the eon a ends to four basic principles. First, the apex (tip of a flap should never be wider than the base, unless a major artery is present in the base. Flaps should have sides hat either run par-

FIG. 3-1 A, Proper method of making incision usinq no. 15 scalpel blade. Note scalpel motion made by moving hand at wrist and not by moving entire forearm. 8, When creating tissue layer that is to be sutured closed, blade should be kept perpendicular to tissue surface to create squared wound edges. Holding blade at any angle other than 90 degrees to tissue surface creates anoblique cut that is difficult to dose properly and that compromises blood supply to the wound edge. (Modified from Clark HB Ir: Practical oral surgery, ed 3, Philadelphia, 1965, Lea & Febiger.)

FIG. 3-1 A, Proper method of making incision usinq no. 15 scalpel blade. Note scalpel motion made
by moving hand at wrist and not by moving entire forearm. 8, When creating tissue layer that is to be
sutured closed, blade should be kept perpendicular to tissue surface to create squared wound edges.
Holding blade at any angle other than 90 degrees to tissue surface creates anoblique cut that is difficult
to dose properly and that compromises blood supply to the wound edge. (Modified from Clark HB
Ir: Practical oral surgery, ed 3, Philadelphia, 1965, Lea & Febiger.)

allel to each other or, preferably, converge ‘moving from the base to the apex of the flap. Second, generally’ the length of a flap should be no more than twice the width of . the base (Fig. 3-2, A-C). Strict adherence to this principle is , less critical in the oral cavity, but in this location the
length of the flap should never exceed the width. Third, when possible, an axial blood supply should be included in the base of the nap. For example, a flap in’ the palate should be based toward the greater palatine artery (see Fig. 3-2). Fourth, the base of flaps should not be excessively twisted, stretched, or grasped with anything that might damage vessels, because these maneuvers can compromise the blood supply feeding and draining the flap.

 

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