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General Structure of a Vertebra

General Structure of a Vertebra

A typical vertebra, with the exception of the sacrum and coccyx, consists of a body, a vertebral arch, and seven different projections termed processes. The anterior portion of the vertebrae, the body, supports about half the body’s weight. The vertebral bodies progressively increase in size and thickness from the cervical region to the lumbar region of the vertebral column. The intervertebral discs present between the bodies of adjacent vertebrae firmly unites them, forming a continuous...

Structural Joints: Cartilaginous Joints

Structural Joints: Cartilaginous Joints

As the name indicates, at a cartilaginous joint, the adjacent bones are united by cartilage, a tough but flexible type of connective tissue. Unlike synovial joints, these types of joints lack a joint cavity and involve bones joined together by either hyaline cartilage or fibrocartilage.
There are two types of cartilaginous joints:
Synchondrosis
A synchondrosis ("joined by cartilage") is a cartilaginous joint where bones are connected by hyaline cartilage. Synchondrosis may be temporary...

Support Reactions

Support Reactions

A coplanar force system refers to a set of forces that all lie in the same plane and are subject to different reactions between the point of contact and the supports. Understanding how different types of supports affect coplanar forces is crucial for designing safe and reliable structures that can withstand external loads.
The purpose of the supports is to prevent the translational motion of the system by applying an equal and opposite force and to prevent the system's rotation by applying...

Space Trusses

Space Trusses

A space truss is a three-dimensional counterpart of a planar truss. These structures consist of members connected at their ends, often utilizing ball-and-socket joints to create a stable and versatile framework. The space truss is widely used in various construction projects due to its adaptability and capacity to withstand complex loads.
At the core of a space truss lies the fundamental unit known as the tetrahedron. This structure is composed of six members that form a three-dimensional shape...

Composite Bodies

Composite Bodies

A composite body is a body made up of multiple parts, connected to form a larger, unified object. Each part has its own weight and center of gravity, which must be considered to determine the center of gravity of the composite body. In cases where the density or specific weight is constant, the center of gravity coincides with the centroid.
Composite bodies have widespread applications in mechanical engineering, from automobiles to aircraft to rockets. For example, an automobile wheel comprises...

Indeterminate Structure

Indeterminate Structure

Indeterminate structures refer to structures where internal forces and reactions cannot be determined using only the equations of static equilibrium. Indeterminate structures have more unknown forces and reaction forces than equations of static equilibrium that can be used to determine them. Indeterminate structures are often used in engineering to create complex, efficient, and aesthetically pleasing structures. There are various types of indeterminate structures used in engineering and...

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Updated: May 6, 2026

Exploring Deep Space - Uncovering the Anatomy of Periventricular Structures to Reveal the Lateral Ventricles of the Human Brain

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Dorsal Preservation Versus Structural Techniques and Their Application.

Dean M Toriumi¹, Russell W H Kridel², Ira D Papel³

¹Otolaryngology Head & Neck Surgery, Rush University Medical School, Chicago, IL, USA.

Facial Plastic Surgery Clinics of North America

|September 28, 2024

Summary

This summary is machine-generated.

Structure and preservation rhinoplasty offer distinct approaches to nasal surgery. A hybrid technique, combining both, shows significant utility in primary, revision, and reconstructive cases.

Keywords:

Cartilage grafting Dorsal hump Dorsal preservation Preservation rhinoplasty Structural grafting Structure rhinoplasty Subdorsal Z-flap Tetris

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Area of Science:

Plastic Surgery
Otolaryngology
Facial Plastic Surgery

Background:

Structure rhinoplasty and preservation rhinoplasty are two primary surgical philosophies.
Structure rhinoplasty often employs cartilage grafts for nasal support and reconstruction, particularly in revision cases.
Preservation rhinoplasty focuses on sparing anatomical structures to minimize grafting and maintain existing nasal features.

Purpose of the Study:

To describe the hybrid approach of structural preservation rhinoplasty.
To highlight the combined utility of structure and preservation techniques in rhinoplasty.

Main Methods:

The study discusses the principles of structure rhinoplasty and preservation rhinoplasty.
It introduces a hybrid technique termed structural preservation rhinoplasty.
This approach combines dorsal preservation with structural techniques in specific nasal thirds.

Main Results:

The hybrid approach integrates dorsal preservation (upper two-thirds) with structure rhinoplasty (lower third).
This combined method offers versatility in surgical application.
The technique demonstrates applicability in primary, revision, and reconstructive rhinoplasty.

Conclusions:

Structural preservation rhinoplasty represents a valuable hybrid approach.
This technique effectively combines the benefits of both structure and preservation philosophies.
It offers broad utility across various rhinoplasty procedures.