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Related Concept Videos

Muscles of the Forearm that Move the Hand and Fingers01:17

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The muscles of the forearm that move the wrist, hand, and digits are numerous and diverse. They can be classified into two groups based on their location and function — the anterior and posterior compartment muscles.
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The muscles that move the forearms can be divided into four groups: forearm flexors, forearm extensors, forearm pronators, and forearm supinators. The flexors and extensors act on the elbow joint, while the pronators and supinators act on the radioulnar joints.
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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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Nerve plexuses are networks of interlacing nerves that serve as communication hubs to distribute and organize nerve action across various body regions. The nerve plexuses are organized into the cervical plexus located in the neck region, brachial plexus in the shoulder area, lumbar plexus found in the lower back, sacral plexus situated in the pelvis, and coccygeal plexus located in the coccygeal region.
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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.
The radius has a nail-shaped head, and a...
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Bones of the Upper Limb: Humerus01:19

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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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Lateral Epicondylitis/Extensor Tendon Injury.

Matthew Meunier1

  • 1Orthopedic Surgery, UC San Diego Health System, 350 West Dickinson Avenue, Suite 121, San Diego, CA 92103, USA.

Clinics in Sports Medicine
|May 25, 2020
PubMed
Summary

Lateral epicondylitis, commonly known as tennis elbow, causes elbow pain during wrist extension activities. This condition frequently affects adults, particularly women aged 40-60, presenting with pain at rest and during specific movements.

Keywords:
Extensor carpi radialis brevisExtensor digitorum communisLateral epicondylitisTennis elbow

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Area of Science:

  • Orthopedics
  • Sports Medicine
  • Musculoskeletal Disorders

Background:

  • Lateral epicondylitis, or tennis elbow, is a frequent cause of lateral elbow pain.
  • It is characterized by pain without nerve injury or elbow instability.
  • The condition commonly affects individuals aged 40-60, with a higher prevalence in women.

Purpose of the Study:

  • To describe the common diagnosis and presentation of lateral epicondylitis.
  • To outline the typical symptoms associated with this condition.

Main Methods:

  • The abstract does not specify methods, focusing on diagnosis and symptoms.
  • Clinical presentation and patient demographics are described.

Main Results:

  • Lateral elbow pain is often diagnosed as lateral epicondylitis.
  • Symptoms include pain during prolonged wrist extension, resisted wrist/elbow extension, and at rest.
  • The condition is prevalent in middle-aged adults, especially women.

Conclusions:

  • Lateral epicondylitis is a common diagnosis for lateral elbow pain.
  • Understanding the typical symptoms aids in diagnosis and patient education.