Head and Neck Cancer Research

Abstract

Background: Osteotomy is one of the most crucial and difficult steps in rhinoplasty. The aim of the present study is to determine the morphological and topographical anatomic variations of the ideal lateral nasal osteotomy (IOs) in relation to chosen anthropometric landmarks reference points; anterior lacrimal crest (ALC), Lacrimal Tubercle (LC), inferior orbital rim (IOR), inferior orbital nerve (ION) and maxillolacrimal suture (MLS) and thickness of ascending process of the maxilla (APMx) to minimize complications.
Materials and Methods: 37 dried adult Egyptian skulls (both sides analyses 74 sides) in the Frankfurt plane were included; 19 females and 18 males. Measuring is done using a digital Vernier caliper, compass, wire, and needle. The data was analyzed statistically for mean, SD, median, modal, and range, using SSPS and P error (standard error).
Results: distance (all in mm) from IOs to ALC, LT, IOR & ION: were: 3.19-4.17, 6.12-8.08, 10.80- 11.50, 14.90-18.20 Respectively. Distance from IOs to MLS at levels of ALA, LT, IOR & ION 4.21- 6.20, 7.12-9.21, 10.14-12.15, 10.21-12.37 were respectively. Thickness of APMx at level of ALA, LT, IOR & ION (a) at orbital rim: 3.35-3.12, 6.95-7.43, 8.84-9.49 and (b) at IOs 1.31-161, 1.44- 1.91, 2.12-2.57, 2.24-2.87 were respectively.
Conclusions: This analytic study gives detailed information which will facilitate professionals to ascertain lateral osteotomy and in turn assists in noninvasive technique to minimize the incidence of complications.