Controlling Incision-Induced Distortion of Nasal Septal Cartilage: A Model to Predict the Effect of Scoring of Rabbit Septa

Abstract

Cartilage can be shaped by scoring. In an exploratory study in living adult animals, this phenomenon was demonstrated in cartilage of the nasal septum. Bending was observed immediately after superficial scoring of the cartilage surface, and the cartilage always warped in the direction away from the scored side. The scored piece of cartilage still showed its initially distorted shape 10 weeks after primary surgery. In ex vivo experiments, a clear relation between incision depth and bending of septal cartilage was observed. Under these controlled conditions, the variation between different septa was small. Deformation of the septal specimens was increased by introducing single superficial incisions deepening to half the thickness of the cartilage. A positive correlation between incision depth and bending was demonstrated. A model was used to accurately predict the degree of bending of the cartilage after making an incision of a particular depth. Hence, the effect of cartilage scoring can be predicted. Because the results of this controlled study showed excellent reproducibility for different septa, it is expected that this model can be extrapolated to human nasal septum cartilage. This would enable the surgeon to better predict the result of cartilage scoring, either preoperatively or perioperatively.

Rhinochirurgie bei Kindern: Entwicklungsphysiologische und chirurgische Aspekte der wachsenden Nase

“…Dies kann wiederum negative Auswirkungen auf die strukturelle Unterst ü tzung des Nasenr ü ckens haben [113,114] . Das Verh ä ltnis zwischen der Tiefe des Schnittes und die resultierende Biegung wurde detaillierter untersucht [115] . benden proteoglykan-haltigen Matrix zwischen den Kollagenfasern eingeschlossen.…”

Intrinsic and extrinsic forces determine the distortion of the split cricoid ring

“…As we previously demonstrated for the nasal septum, the degree of cartilage bending is depending on the depth of the scoring incisions [10]. Therefore, the variation in the dimensions of the anterior cricoid gap after scoring could be explained by the varying depth of the incisions.…”

Changing the Convexity and Concavity of Nasal Cartilages and Cartilage Grafts with Horizontal Mattress Sutures: Part I. Experimental Results

“…CONCLUSIONS Traditionally, scoring has been a successful means of controlling the curvature of cartilage. 10,11 Unfortunately, it is associated with cartilage instability. Moreover, if the scoring is overzealous, the cartilage may completely collapse and prove worthless.…”