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Bones of the Upper Limb: Humerus01:19

Bones of the Upper Limb: Humerus

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The upper limb consists of the arm, forearm, wrist, and hand bones. The humerus is the single bone of the upper arm region. Proximally, it has a large, spherical, smooth head that articulates with the glenoid cavity of the scapula to form the glenohumeral or shoulder joint. The margin of the head is the anatomical neck, a residual epiphyseal plate. Laterally it extends to form bony projections called the greater tubercle and the lesser tubercle. Next to the tubercles is the surgical neck, a...
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In mechanical engineering, the stability of systems under various forces is critical for designing durable and efficient structures. One fundamental way to explore these concepts is by analyzing systems like two rods connected at a pivot point, O, with a torsional spring of spring constant k at the pivot point. This system is similar in appearance to a scissor jack used to change tires on a car. In this case, the arms of the linkage (equivalent to the rods in this system) are entirely vertical,...
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Stability of Equilibrium Configuration01:23

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Understanding the stability of equilibrium configurations is a fundamental part of mechanical engineering. In any system, there are three distinct types of equilibrium: stable, neutral, and unstable.
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Stability of Equilibrium Configuration: Problem Solving01:13

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The stability of equilibrium configurations is an important concept in physics, engineering, and other related fields. In simple terms, it refers to the tendency of an object or system to return to its equilibrium position after being disturbed. The stability of an equilibrium configuration can be analyzed by considering the potential energy function of the system and examining its behavior near the equilibrium point.
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Bones of the Upper Limb: Ulna01:15

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The ulna and radius are parallel bones of the antebrachium or the forearm. The ulna lies medially and consists of a bony tip called the olecranon process at its proximal end. This hook-like projection articulates with the olecranon fossa of the humerus and forms the "hinged" ulnohumeral part of the elbow joint. This joint facilitates forearm extension and flexion while preventing its hyperextension. Similarly, the coronoid process, another bony projection on the proximal/anterior side...
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Bones of the Upper Limb: Radius01:09

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The radius is longer of the two bones that make up the human antebrachium or forearm. At the proximal end, the radius articulates with the capitulum of the humerus and the radial notch of the ulna to form the elbow joint. At the distal end, the radius articulates with the ulna via the ulnar notch, forming the distal radioulnar joint. Distally, the radius also attaches to the carpal wrist bones (scaphoid and lunate) to form the radiocarpal joint.
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Novel Triple-Loop Technique for Suturing TFCC Injuries without Transosseous Tunnel
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Complex instability of the elbow.

Payam Tarassoli1, Philip McCann1, Rouin Amirfeyz1

  • 1Department of Trauma and Orthopaedics, University Hospitals Bristol NHS Trust, Level 5, Queens Building, Upper Maudlin Street, Bristol BS2 8HW, United Kingdom.

Injury
|October 29, 2013
PubMed
Summary
This summary is machine-generated.

Elbow injuries, from simple fractures to severe dislocations, require precise diagnosis. Understanding elbow stabilizers is key to effective treatment and preventing long-term issues like instability and pain.

Keywords:
Complex elbow instabilityElbow dislocationElbow fractureElbow fracture dislocationElbow instabilityInstability of the elbowTerrible triad

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Area of Science:

  • Orthopaedic Surgery
  • Traumatology
  • Anatomy

Background:

  • Elbow injuries are frequent in orthopaedic practice, varying in severity from simple fractures to complex fracture-dislocations.
  • Accurate injury assessment is vital for functional recovery and avoiding chronic elbow problems such as instability, pain, and weakness.

Purpose of the Study:

  • To review the critical osseous and ligamentous structures that stabilize the elbow joint.
  • To outline management strategies for common complex elbow injuries.

Main Methods:

  • Review of anatomical stabilizers of the elbow.
  • Discussion of management protocols for complex elbow injuries.

Main Results:

  • Identification of key bony and ligamentous structures essential for elbow stability.
  • Presentation of treatment guidelines for prevalent complex elbow injury patterns.

Conclusions:

  • Precise recognition of elbow injury patterns is crucial for surgical success.
  • Effective management protocols aid in restoring elbow function and preventing chronic complications.