Lamb Head as a Training Model for Septoplasty and Rhinoplasty

Overview

Septoplasty and rhinoplasty are hard to teach. Apaydin's group dissected 21 lamb heads by protocol, measured anatomical distances for comparison with human cadavers, then used 8 heads to practise preservation rhinoplasty (high strip in 5, Cottle low strip in 3).

Sections of note

• Lateral crura 17.8 by 11.6 mm; interdomal distance 8.1 mm; domal width 3.7 mm.
• Upper lateral cartilages 31.1 mm laterally and 21.2 mm medially.
• Nasal bones 63.9 mm long and 16 mm wide.
• Preservation techniques were successfully practised on 8 heads.
• Stated advantages: very low cost, easy availability, close similarity to human cadavers; useful for experienced surgeons trying new methods as well as beginners.

What it means for a patient

• Surgeons can rehearse newer preservation techniques on an animal model before applying them to patients.
• Lamb nasal bones are much longer than human ones (about 64 mm versus roughly 25 mm), so the model is imperfect for bone work.

Why this paper matters

It validates an inexpensive, widely available model at the moment preservation techniques were spreading. Limits: anatomical comparison only, no trainee outcomes.

Terms

• Lateral crura: the side arms of the tip cartilages.
• Interdomal distance: the gap between the two tip domes.
• Upper lateral cartilages: the paired cartilages of the middle vault.
• High-strip / Cottle techniques: preservation methods removing a septal strip just under the dorsum or at its base.