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Facial Plast Surg 2022; 38(05): 518-524
DOI: 10.1055/s-0042-1749169
Original Research

Biomechanics of Septal L-Strut on Lamb Head Models

Ozan Erol 
1   European Academy of Facial Plastic Surgery (EAFPS), Department of Otorhinolaryngology, Faculty of Medicine, Ege University, Izmir, Turkey
,
Germán Armando Soto-Galindo
2   Department of Otorhinolaryngology, School of Medicine and University Hospital “Dr. Jose Eleuterio Gonzalez,” Universidad Autonoma de Nuevo Leon, Monterrey, Mexico
,
Fazil Apaydin
3   Department of Otorhinolaryngology, Faculty of Medicine, Ege University, Izmir, Turkey
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Funding None.
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Abstract

It is very crucial to know the biomechanics of the septal cartilage and adjacent structures during septoplasty. The aim of this study was to investigate the strength changes of different L-strut models after mucoperichondrium elevation, application of septal extension grafts and spreader grafts on an experimental lamb model. Ten lamb heads were dissected according to a dissection protocol and septal resistances were measured with the newton meter at six zones. Three different L-strut types were designed, and all the L-strut models were created at different widths of 15mm, 10mm, and 5mm. In addition, effects of two different types of septal extension grafts and spreader grafts were compared. After mucoperichondrium elevation and harvesting the septum cartilage, there was a significant decrease in the septum resistance (p <0.05). As the width of the L-strut decreased, the septum strength decreased significantly (p <0.05). There was no significant difference between three chondrotomy types at different widths (p >0.05). There was no significant difference between the overlapping SEG and end-to-end SEG in terms of septum resistance (p >0.05). This was the first study to measure septal resistance in lamb heads. The mucoperichondrium and L-strut width were important structures for maintaining septal resistance. Chondrotomy style was not crucial, but as the width of the L-strut increased, the septal resistance increased. The septal extension grafts regardless of suturing style and the spreader grafts added strength to the caudal septum.

Keywords

biomechanics - L-strut - lamb head - septal extension graft - mucoperichondrium - spreader graft

Note

This research was presented at the 15th National Congress of Turkish Facial Plastic Surgery Society; November 26–28, 2021; Ankara, Turkey.


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Publication History

Article published online:
13 September 2022

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