| Abstrakt: |
In aesthetic facial surgery, the nasolabial fold is the most resilient to attempts at its surgical correction. Numerous surgical techniques have been employed, but none produce satisfying and lasting results. Therefore, a more thorough evaluation of the surgical anatomy and histology of the nasolabial fold was undertaken in order to seek improved methods for its correction. Four cadaver heads, three fresh-frozen and one preserved, were bilaterally dissected and studied anatomically and histologically. The most demonstrable anatomic feature was an abundance of fat superior to the nasolabial fold crease, which became thin and almost nonexistent inferior to the crease in the upper lip. Second, the fold was entirely confined to the subcutaneous fat layer of the face. Along the superior half of the nasolabial fold crease, adjacent to the nasal ala, the crease was directly attached to the nasalis and levator labii superioris muscles. This attachment of skin to underlying muscle, continued throughout the upper lip. In addition, the SMAS could not be dissected from other fascial layers in the area of the nasolabial fold, and the only surgical plane of dissection that exists in the nasolabial fold area was in the subcutaneous plane superficial to the muscular layer. |
