Anatomy and PhysiologyĪesthetically, the face is divided up into several subunits: forehead, brows, orbits, nose, cheeks, mouth, chin, and ears, each of which has its own constituent parts with additional boundaries among them. This application of M-plasty may adversely impact the aesthetic acceptability of the final result. In some instances, an M-plasty may be used on the end of an incision to avoid crossing an aesthetic subunit boundary or violating an otherwise intact and uninvolved structure, albeit at the expense of adding a fork to the end of the incision. Īn M-plasty is an alternative to this technique and has the additional benefit of shortening the final wound length to conserve normal tissue. Typically, a Burow's triangle is taken at the end of the incision, increasing the scar's final length. A triangular piece of tissue, known as a Burow's triangle, can be removed anywhere along the length of the incision. For example, this technique will have a limited impact on short incisions or large dog ears. The most commonly employed surgical option to remove a dog ear is to excise the excess tissue directly. This approach may not work in all situations and is dependent upon the amount of excess tissue and the length of the wound. Many different techniques address dog ears. The primary non-excisional technique involves distributing the excess skin on one side of the incision evenly relative to the other side by placing sutures at larger intervals on the longer side of the incision relative to the shorter side. Dog ears arise from the bunching of tissue when overly obtuse angles (>30 degrees) are used at the ends of surgical excisions. Outline the importance of enhancing care coordination amongst interprofessional team members to improve outcomes for patients undergoing M-plasty.Īn M-plasty is an excisional technique used to remove standing cutaneous deformities, also known as dog ears, from the end of a linear wound repair.Review the complications associated with M-plasty.Describe the technique involved in performing an M-plasty.Identify the indications for performing an M-plasty.This CME activity describes the indications, contraindications, and techniques involved in performing M-plasties and highlights the role of the interprofessional team in the pre-operative and post-operative care of patients undergoing this procedure. This technique is also used for limiting the total length of a linear scar, typically to prevent extension across aesthetic subunit boundaries. An M-plasty is an excisional technique used to remove standing cutaneous deformities, also known as dog ears, from the end of a linear wound repair.
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