Abstract
Despite the discordance in the literature concerning the effect of columellar strut grafts on nasal tip rotation, this method is often used when an increase in nasolabial angle or nasal tip projection is desired. We aimed to elucidate the change in nasolabial angles and nasal tip projections after exclusive columellar strut graft implantations and in addition to other surgical steps. Furthermore, differences in these parameters between patients with conchal and septal columellar strut grafts were investigated. A monocentric retrospective cohort study of 173 open septorhinoplasties with columellar strut graft technique, between 2006 and 2016, was conducted. The pre- and postoperative nasal tip projection, nasolabial and nasofrontal angle and interalar distance were determined and the Goode-ratio was calculated. In cases where uprotation was not specifically desired, neither nasolabial angles nor tip projections changed significantly, irrespective of whether a columellar strut graft was used alone or with additional surgical steps. If an uprotation through surgery was desired, a significant mean increase in nasolabial angle of 4.4° was achieved. Furthermore, conchal instead of septal columellar strut grafts showed significantly better results. In our study, a columellar strut graft-without any additional surgical step-does only have an improving impact on nasal tip rotations and projections, if specifically intended to by the surgeon. In other words, if the strut graft was not chosen for an uprotational intention, it did not relevantly impact on the nasolabial angleor nasal tip projection. However, in patients where an uprotation is desired, the columellar strut graft still represents a meaningful tool. Since conchal instead of septal columellar strut grafts showed better results, we suggest using them for these patients. 2b.
Published Version
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