Recent

  • Show all results for ""

🎧 New: AI-Generated Podcasts Turn your study notes into engaging audio conversations. Learn more

Elbow Anatomy Overview
33 Questions
0 Views

Elbow Anatomy Overview

Created by
@PoshDubnium

Podcast Beta

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which fat pad is typically visible on a lateral elbow projection?

  • Anterior fat pad (correct)
  • Medial fat stripe
  • Supinator fat stripe
  • Posterior fat pad

    • What may the supinator fat stripe indicate in a patient?

  • Normal anatomy variations
  • General joint inflammation
  • An infection of the bone
  • A potential radial head or neck fracture (correct)

    • What is a characteristic of osteomyelitis?

  • Inflammation of the bursae
  • Abnormally dense bone texture
  • Infection of bone or bone marrow (correct)
  • Fluid-filled sacs surrounding joints

    • In a medial oblique projection of the elbow, how are the proximal radius and ulna seen?

    <p>Completely superimposed</p> Signup and view all the answers

    Which condition is NOT typically associated with the elbow joint?

    <p>Rheumatoid arthritis</p> Signup and view all the answers

    What structure is best visualized in a medial oblique projection of the elbow?

    <p>Coronoid process of the ulna</p> Signup and view all the answers

    Which position is recommended for a lateral projection of the elbow?

    <p>Elbow fully flexed at 90 degrees</p> Signup and view all the answers

    What clinical condition can be assessed using the lateral projection of the elbow?

    <p>Fractures and dislocations</p> Signup and view all the answers

    At what degree should the arm be rotated inward during a medial oblique projection?

    <p>45 degrees</p> Signup and view all the answers

    What evaluation criterion is important in assessing the radial head and neck during elbow imaging?

    <p>Radial head and neck should be superimposed and centered over the proximal ulna</p> Signup and view all the answers

    What is the common name for the trochlear notch?

    <p>Ulnar notch</p> Signup and view all the answers

    Which elbow projection demonstrates the radial head and neck along with the capitulum of the humerus most effectively?

    <p>External (lateral) oblique projection</p> Signup and view all the answers

    What is the proper CR location for an AP elbow projection?

    <p>Midway between the epicondyles</p> Signup and view all the answers

    How much should the elbow be flexed for a lateral elbow projection?

    <p>90 degrees</p> Signup and view all the answers

    Which Coyle method requires the hand to be pronated?

    <p>Axial mediolateral</p> Signup and view all the answers

    What is the primary function of the trochlea in the elbow joint?

    <p>It serves as a pulley for the ulna.</p> Signup and view all the answers

    Which part of the humerus is known as the lateral condyle and articulates with the radial head?

    <p>Capitulum</p> Signup and view all the answers

    Which fossa receives the coronoid process during elbow flexion?

    <p>Coronoid fossa</p> Signup and view all the answers

    What condition is depicted when the elbow is flexed at 90˚ with three concentric arcs visible?

    <p>True lateral elbow</p> Signup and view all the answers

    What is the location of the medial epicondyle on the humerus?

    <p>On the medial edge of the distal humerus</p> Signup and view all the answers

    Which of the following structures is part of the distal humerus and contributes to elbow articulation?

    <p>Trochlear sulcus</p> Signup and view all the answers

    Why might specific projections of the elbow be requested during imaging?

    <p>To assess alignment of bones.</p> Signup and view all the answers

    What is the smooth depressed center of the trochlea called?

    <p>Trochlear sulcus</p> Signup and view all the answers

    Which depression on the distal humerus specifically receives the radial head?

    <p>Radial fossa</p> Signup and view all the answers

    What structure is located at the posterior part of the distal humerus and facilitates the extension of the arm?

    <p>Olecranon fossa</p> Signup and view all the answers

    What is the purpose of the Axial Lateromedial Projection?

    <p>To visualize the radial head</p> Signup and view all the answers

    Which statement about the axial medial-lateral projection is true?

    <p>The CR is angled towards the shoulder</p> Signup and view all the answers

    What is the clinical indication for using the Coyle Method?

    <p>Assessing fractures and dislocations</p> Signup and view all the answers

    What position should the hand be in for the Axial Lateromedial Projection?

    <p>Pronated</p> Signup and view all the answers

    Which of the following is part of the evaluation criteria for the axial medial-lateral projection?

    <p>Anterior portion of the coronoid appears elongated</p> Signup and view all the answers

    How many projections are taken for the radial head laterals?

    <p>4</p> Signup and view all the answers

    Which fossa of the humerus receives the radial head?

    <p>Radial fossa</p> Signup and view all the answers

    What is the recommended angle of the CR in the Coyle Method for the Axial Lateromedial Projection?

    <p>45 degrees</p> Signup and view all the answers

    Study Notes

    Elbow Anatomy

    • The humerus is the long bone of the upper arm.
    • The distal humerus is the expanded end of the humerus near the elbow.
    • The humeral condyle articulates with the ulna and radius.
    • The trochlea is the medial condyle that articulates with the ulna.
    • The capitulum is the lateral condyle that articulates with the radial head.
    • The trochlear sulcus is the smooth depressed center of the trochlea.
    • The lateral epicondyle is a small projection located on the lateral aspect of the distal humerus, superior to the capitulum.
    • The medial epicondyle is larger and more prominent than the lateral epicondyle and is located on the medial edge of the distal humerus.
    • The coronoid fossa is an anterior depression located more medially and receives the coronoid process.
    • The radial fossa is a more lateral anterior depression that receives the radial head.
    • The olecranon fossa is a posterior depression that houses the olecranon process of the ulna when the arm is fully extended.

    Elbow Fat Pads

    • There are three significant fat pads or stripes near the elbow:
      • Anterior fat pad
      • Posterior fat pad
      • Supinator fat stripe

    Elbow Projections

    • True lateral elbow:
      • Evaluates for three concentric arcs:
        • Trochlear sulcus
        • Capitulum
        • Trochlea
    • Medial (internal) oblique elbow:
      • Best visualizes coronoid process of ulna and trochlea
      • Hand is pronated and rotated internally
      • CR perpendicular to IR directed to mid-elbow joint
      • Radial head and neck should be superimposed and centered over proximal ulna.
    • Lateral (lateromedial) oblique elbow:
      • Shoulder should be on the same plane as the forearm
      • Hand and wrist are in a true lateral position
      • CR perpendicular to IR, directed to the mid-elbow joint
    • Trauma Axial Laterals (Coyle method):
      • Axial lateromedial projection:
        • Radial head is best visualized
      • Axial mediolateral projection:
        • Coronoid process is best visualized
      • Radial head laterals:
        • 4 projections are needed
        • Hand in supination, true lateral, pronation, and internal rotation
        • CR perpendicular to IR and directed at the radial head

    Pathologies of the Elbow

    • Osteomyelitis: Infection of bone or bone marrow, often caused by bacteria introduced by trauma or surgery.
    • Bursitis: Inflammation of the bursae, fluid-filled sacs that enclose the joints. Causes pain and limited movement.
    • Osteopetrosis: Abnormally dense bone condition, often referred to as “marble bone”.

    Other Key Facts

    • The trochlear notch is another name for the olecranon fossa.
    • The proximal radius and ulna are slightly superimposed on an AP elbow projection.
    • The medial oblique projection completely superimposes the proximal radius and ulna.
    • The CR location for an AP elbow projection is perpendicular to the IR, centered to the mid-elbow joint.
    • The hand is positioned in a natural palm-down position for an AP elbow projection.
    • You can locate the mid-elbow joint by palpation.
    • The SID for an elbow projection is 40 inches.
    • The optimal elbow flexion for a lateral elbow projection is 90 degrees.
    • The shoulder should be on the same plane as the forearm for a lateral elbow projection.
    • The CR for a lateral projection is perpendicular to the IR, directed to the mid-elbow joint.
    • The axial lateromedial projection from the Coyle method is best for visualizing the radial head.
    • For the axial mediolateral projection, the CR is angled 45 degrees towards the shoulder.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Elbow RAD 101 2024 PDF.pdf

    Description

    This quiz explores the key structures and features of elbow anatomy, including the humerus, ulna, and radius. Test your knowledge on the various condyles, epicondyles, and fossa associated with the elbow joint. Perfect for students of anatomy or anyone interested in human anatomy.

    More Quizzes Like This

    Elbow Motion Anatomy
    12 questions

    Elbow Motion Anatomy

    WarmheartedDevotion avatar
    WarmheartedDevotion
    Elbow Joint and Forearm Anatomy
    15 questions

    Elbow Joint and Forearm Anatomy

    LowRiskSteelDrums avatar
    LowRiskSteelDrums
    Arthro mbr sup
    80 questions

    Arthro mbr sup

    Lorake avatar
    Lorake
    Elbow X-ray Labeling Quiz
    6 questions

    Elbow X-ray Labeling Quiz

    FoolproofLemur avatar
    FoolproofLemur
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser