Abstract
Cinch sutures attempt to counteract alar base widening but may lead to unintended increases in the nasolabial angle and nasal tip elevation. The aim of this investigation was to assess nasolabial angle changes after maxillary osteotomies with and without alar base cinch sutures in the short and long terms. Seventy-eight patients were assessed, with 51 in the cinch group (38 females, 13 males; age range 16-39 years) and 27 in the no-cinch group (12 females, 15 males; age range 17-27 years). The upper component (nasal tip elevation), lower component (lower lip inclination), and the overall nasolabial angle were measured on preoperative, postoperative, and long-term follow-up lateral cephalometric radiographs. The overall nasolabial angle (P=.006) and its upper component (P < .001) increased significantly in the cinch group immediately postoperatively but resolved by 6 to 12 months for the overall nasolabial angle and by 12+ months (up to 5.7 years) for the upper component. There were no significant changes in the no-cinch group. In the short term, the alar base cinch suture increases nasal tip elevation and the overall nasolabial angle. In the long term, there was no significant difference, suggesting that the initial nasal tip elevation resolves over time and that the cinch suture may have a limited effect on nasal tip elevation in the longer term.
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