Abstract
The medical charts of 267 patients who had primary high-superficial musculoaponeurotic system (SMAS) rhytidectomies were reviewed. The depth of the nasolabial fold was used as an indicator of the degree of descent of the subcutaneous cheek mass, as a guide in procedure selection, and as a method of judging the operative results. Fold depth was assigned a score of 0 to 3, with 3 being most severe. According to their preoperative fold depth, patients were operated on using one of three variants of the high-SMAS technique: sub-SMAS dissection up to the nasolabial fold, sub-SMAS dissection up to the nasolabial fold plus transnasal SMAS graft, or sub-SMAS dissection across the nasolabial fold. An independent trained observer rated the postoperative fold depth in each case from photographs taken at the 6-month follow-up visit. Of patients with fold scores of 2 or 3, 97 percent (183 of 189 patients) showed visible improvement in nasolabial crease depth after the operation.
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