Related Experiment Video
Updated: Feb 10, 2026

An Experimental Human DIEP Flap Model to Investigate Preservation Strategies for Vascularized Composite Allografts and Free Flaps
Published on: December 5, 2025
The Composite Spreader Flap
Ozan Bitik1, Haldun Onuralp Kamburoglu1, Hakan Uzun2
1Private practice in Ankara, Turkey.
Background:
The effect of a spreader flap on the keystone area and the upper bony vault depends on the structural strength and cephalic extent of upper lateral cartilages, both of which can be significantly variable among individuals.
Objectives:
The authors present a novel cephalically extended osseocartilaginous composite spreader flap technique that was designed to overcome the limitations of a conventional spreader flap on the keystone area upper bony vault, in patients with cephalically short and structurally weak upper lateral cartilages and thin nasal bones.
Methods:
This study was a retrospective review of the recorded perioperative information to investigate the frequency of the use of the composite spreader flap technique and perioperative parameters that relate to postoperative dorsal deformities. One-hundred-seventy-six consecutive primary open approach rhinoplasty cases performed by the first author (O.B.) between November 2015 and February 2017 were included in the study. Patient data were obtained from rhinoplasty data sheets, standardized photographs, and postoperative physical examinations.
Results:
Of the 176 cases who underwent primary open approach rhinoplasty whose data were reviewed for the purpose of this study, 38 (32 females, 6 males) had dorsal reconstruction with the use of a composite spreader flap. Seventeen patients had a deviated nose with an asymmetric bony pyramid. In 8 patients, the composite spreader flap was used unilaterally. No patients in the composite spreader flap group had a postoperative dorsal deformity or required surgical revision.
Conclusions:
Composite flap preparation extends the reliability and the reach of the spreader flap technique beyond its previous borders.
More Related Videos
05:34A Reliable Porcine Fascio-Cutaneous Flap Model for Vascularized Composite Allografts Bioengineering Studies
Published on: March 31, 2022
09:36Modified Heterotopic Hindlimb Osteomyocutaneous Flap Model in the Rat for Translational Vascularized Composite Allotransplantation Research
Published on: April 26, 2019
Related Concept Videos
Classifying Matter by Composition
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
Composite Bodies
Composite bodies have widespread applications in mechanical engineering, from automobiles to aircraft to rockets. For example, an automobile wheel comprises...
Composition of Blood
Formed elements constitute the remaining 45% of the blood volume. These...
Composition of Body Fluids
Moments of Inertia for Composite Areas
The second moment of area, also known as the moment of inertia, measures a structure's resistance to bending. It is calculated by...
Composition of Blood Plasma