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The ears, like the nose, have a complex three-dimensional array of ridges and valleys that must be respected if a reconstruction is to return the appearance of normal. Since the cartilaginous strut of the ear provides its basic structural integrity, the ear represents a type of free margin. Appreciating where the rigidity of the cartilaginous strut will force a dermal repair back toward the appearance of normalcy is an important principle of ear reconstruction, and may permit linear closures of larger defects.

Tissue recruitment from the posterior ear, retroauricular sulcus, and mastoid allow for complex flap repairs on the helix and beyond. When the immediate postoperative effect is pinning back the ear, this may resolve with time, and therefore retroauricular sulcus-based transposition flaps may be an excellent option for many helical repairs.

While as a general rule skin grafts should often be avoided in favor of flap repairs, repairs of the nonmargin areas of the ear, such as the conchal bowl, are readily accomplished with full-thickness skin grafts, where the retroauricular area provides a locus of plentiful donor tissue.

The ears are also unique in that flap repairs can twist in three dimensions so that an advancement or rotation flap may also have a significant twisting component, permitting even greater tissue recruitment and mobility.

These repair considerations are important when approaching suturing techniques, which serve as the fundamental building blocks of effective cosmetically appealing repairs. Many small defects along the helix may be repaired with a small complex linear repair perpendicular to the helical rim, while larger defects may necessitate a single or double advancement flap. Precise suturing techniques help hide scars along the cosmetic subunits of the ear, where eversion is critical to healing, particularly when transversely oriented repairs are used so that the suture line crosses cosmetic subunit boundaries.

Suture Material Choice

Generally, 5-0 absorbable suture is used for the deeper component of most ear repairs, though a heavier suture may be used when securing larger flaps in place in the retroauricular area or when tacking back the ear. Though the P-3 reverse cutting needle is generally used, narrower repairs may benefit from the smaller P-2 needle.

Transepidermal repairs may use 6-0 nonabsorbable suture, though 5-0 or 6-0 fast-absorbing gut may be useful as well and obviate the need for suture removal. For grafts, 5-0 or 6-0 gut or the newer rapid-absorbing synthetic sutures are excellent options as they avoid the need for suture removal, which on a graft site could traumatize the delicate graft and potentially impair healing.

Suture Technique Choice

Everting set-back dermal or buried vertical mattress sutures are useful when closing most ear defects, as they provide excellent wound-edge approximation and eversion. Since some ear defects may be very narrow, percutaneous variations of these approaches ...

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