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  2. Pulled elbow - Wikipedia

    en.wikipedia.org/wiki/Pulled_elbow

    In this movement the ulna, which is connected to the humerus by a simple hinge-joint, remains stationary, while the radius rotates, carrying the wrist and hand with it. To allow this rotation, the proximal (elbow) end of the radius is held in proximity to the ulna by a ligament known as the annular ligament.

  3. Annular ligament of radius - Wikipedia

    en.wikipedia.org/wiki/Annular_ligament_of_radius

    The annular ligament (orbicular ligament) is a strong band of fibers that encircles the head of the radius, and retains it in contact with the radial notch of the ulna. [1] Per Terminologia Anatomica 1998, the spelling is "anular", [2] but the spelling "annular" is frequently encountered.

  4. Head of radius - Wikipedia

    en.wikipedia.org/wiki/Head_of_radius

    The head of the radius has a cylindrical form, and on its upper surface is a shallow cup or fovea for articulation with the capitulum of the humerus.The circumference of the head is smooth; it is broad medially where it articulates with the radial notch of the ulna, narrow in the rest of its extent, which is embraced by the annular ligament.

  5. Proximal radioulnar articulation - Wikipedia

    en.wikipedia.org/wiki/Proximal_radioulnar...

    It occurs between the circumference of the head of the radius and the ring formed by the radial notch of the ulna and the annular ligament. [2] The interosseous membrane of the forearm and the annular ligament stabilise the joint. [2] A number of nerves run close to the proximal radioulnar joint, including: median nerve; musculocutaneous nerve ...

  6. Annular ligament - Wikipedia

    en.wikipedia.org/wiki/Annular_ligament

    Annular ligament may refer to: Annular ligament of femur; Annular ligaments of fingers; Annular ligament of radius; Annular ligament of stapes (also known as the ...

  7. Humeroradial joint - Wikipedia

    en.wikipedia.org/wiki/Humeroradial_joint

    The annular ligament binds the head of the radius to the radial notch of the ulna, preventing any separation of the two bones laterally.Therefore, the humeroradial joint is not functionally a ball and socket joint, although the joint surface in itself allows movement in all directions.

  8. Radial collateral ligament of elbow joint - Wikipedia

    en.wikipedia.org/wiki/Radial_collateral_ligament...

    the annular ligament (AL), from the posterior to the anterior margins of radial notch on the ulna, encircles the head of radius and holds it against the radial notch of ulna. [5] the accessory lateral collateral ligament (ALCL), from the inferior margin of the annular ligament to the supinator crest.

  9. Ulnar collateral ligament injury of the elbow - Wikipedia

    en.wikipedia.org/wiki/Ulnar_collateral_ligament...

    Ulnar collateral ligament injuries can occur during certain activities such as overhead baseball pitching. Acute or chronic disruption of the ulnar collateral ligament result in medial elbow pain, valgus instability, and impaired throwing performance. There are both non-surgical and surgical treatment options.