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Related Concept Videos

Vertebral Column: Regions and Curvature01:16

Vertebral Column: Regions and Curvature

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The vertebral column or spine is a flexible column that supports the head, neck, and body and  allows for their movements. It also protects the spinal cord.
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In an adult, the spine is subdivided into five regions: the cervical, the thoracic, the lumbar, the sacral, and the coccygeal region. The spine initially develops as a series of 33 vertebrae; after 20 years of age, the nine bones in the sacral region, five sacral, and four coccygeal bones fuse to form...
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Articulations of the Vertebral Column01:28

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In addition to being held together by the intervertebral discs, adjacent vertebrae also articulate with each other at synovial joints formed between the superior and inferior articular processes called zygapophysial joints (facet joints). These are plane joints that provide for only limited motions between the vertebrae. The orientation of the articular processes at these joints varies in different regions of the vertebral column and serves to determine the types of motions available in each...
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General Structure of a Vertebra01:30

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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...
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Overview of the Axial Skeleton01:09

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The skeleton is subdivided into two major divisions—the axial skeleton and the appendicular skeleton. The axial skeleton forms the vertical, central axis of the body. It includes all of the bones of the head, neck, chest, and back. It protects the brain, spinal cord, heart, and lungs. It also serves as the attachment site for muscles that move the head, neck, and back and for muscles that act across the shoulder and hip joints to move their corresponding limbs.
The axial skeleton of the...
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Space Trusses: Problem Solving01:29

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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. Due to its adaptability and capacity to withstand complex loads, the space truss is widely used in various construction projects.
Consider a tripod consisting of a tetrahedral space truss with a ball-and-socket joint at C. Suppose the height and lengths of the horizontal and vertical...
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Spinal Cord: Cross-sectional Anatomy01:16

Spinal Cord: Cross-sectional Anatomy

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The cross-sectional anatomy of the spinal cord offers a detailed view of its complex structure and function within the central nervous system. At the core of the spinal cord lies the gray matter, characterized by its butterfly or "H"-shaped appearance in cross-section. This central region is enveloped by white matter, with the overall structure divided into symmetrical halves by the dorsal median sulcus and the ventral median fissure.
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Articles linked to this work by shared authors, journal, and citation graph.

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Agreement of imageless navigation-derived pelvic tilt measurements with radiographic and CT-based measurements in direct anterior total hip arthroplasty: A prospective single-center study.

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What are the Rates of Recurrent Dislocation and Re-Revision after Revision Total Hip Arthroplasty for Instability?

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Surgical treatment of varus unicompartmental knee osteoarthritis: indications, trends, and outcomes-a narrative review.

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Postoperative Coronal Plane Alignment of the Knee Analysis Following Planned Mechanical Alignment: A Comparison of Manual, Computer-Navigated, and Robotic-Assisted Total Knee Arthroplasty.

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Related Experiment Video

Updated: Dec 26, 2025

In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
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The Hip-Spine Relationship Simplified.

Nima Eftekhary, Jessica Morton, Ameer Elbuluk

    Bulletin of the Hospital for Joint Disease (2013)
    |March 8, 2020
    PubMed
    Summary

    Understanding spinopelvic parameters and motion is crucial for surgeons to reduce instability after total hip arthroplasty (THA). This knowledge aids in planning and preventing postoperative complications.

    Area of Science:

    • Orthopedic Surgery
    • Biomechanics
    • Radiology

    Background:

    • Postoperative instability is a significant complication following total hip arthroplasty (THA).
    • The relationship between the hip and spine, specifically spinopelvic parameters and motion, is increasingly recognized as a contributing factor.
    • Confusing terminology in this area necessitates clarification for clinical practice.

    Purpose of the Study:

    • To clarify the terminology surrounding the hip-spine relationship in the context of THA.
    • To detail spinopelvic parameters that predispose patients to instability after THA.
    • To guide surgeons in understanding spinopelvic motion to mitigate THA instability risks.

    Main Methods:

    • Review of existing literature on spinopelvic parameters and motion.

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  • Analysis of the interplay between the spine and pelvis in relation to THA outcomes.
  • Synthesis of information to provide a practical guide for surgeons.

    • Main Results:

    • Identification of key spinopelvic parameters influencing THA stability.
    • Explanation of how spinopelvic motion affects the risk of dislocation.
    • Understanding the biomechanical link between spinal alignment and hip joint function.

    Conclusions:

    • A thorough understanding of spinopelvic parameters and motion is essential for effective surgical planning in THA.
    • Addressing spinopelvic factors can significantly decrease the incidence of postoperative instability.
    • Clearer terminology and knowledge application will improve patient outcomes after total hip arthroplasty.