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Related Concept Videos

Bones of the Upper Limb: Ulna01:15

Bones of the Upper Limb: Ulna

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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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Muscles that Move the Forearm01:16

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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.
Forearm Flexors
The biceps brachii, brachialis, and brachioradialis are forearm flexors. The biceps brachii is made up of two heads. Its long head originates at the supraglenoid tubercle of the scapula, whereas that of the short head is...
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Muscles of the Forearm that Move the Hand and Fingers01:16

Muscles of the Forearm that Move the Hand and Fingers

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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.
Anterior Compartment
The anterior compartment muscles originate from the humerus. They primarily function as flexors and are also known as flexor muscles. They typically insert on the carpals, metacarpals, and phalanges. The superficial layer includes the flexor carpi...
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Bones of the Upper Limb: Radius01:09

Bones of the Upper Limb: Radius

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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

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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Spinal Nerves: Plexus I01:22

Spinal Nerves: Plexus I

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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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Related Experiment Video

Updated: Mar 17, 2026

Vascularized Composite Hand Allograft Procurement and Preparation for Distal and Proximal Forearm Allotransplantation: A Stepwise Approach
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Vascularized Composite Hand Allograft Procurement and Preparation for Distal and Proximal Forearm Allotransplantation: A Stepwise Approach

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Interosseous Membrane of the Forearm.

Robert Matthias1, Thomas W Wright2

  • 1Department of Orthopaedics and Rehabilitation, University of Florida, Gainesville, Florida.

Journal of Wrist Surgery
|July 29, 2016
PubMed
Summary

Interosseous membrane (IOM) forearm injuries are often missed but treatable. Early diagnosis and reconstruction of the IOM

Keywords:
Essex–Lopresti injurycentral banddistal radial ulnar jointinterosseous membraneproximal radial ulnar joint

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Area of Science:

  • Orthopedic surgery
  • Biomechanics
  • Traumatology

Background:

  • Interosseous membrane (IOM) forearm injuries are often overlooked and challenging to manage.
  • Untreated IOM injuries can lead to severe wrist and elbow complications.

Purpose of the Study:

  • To review the diagnosis, biomechanics, and clinical outcomes of IOM injuries.
  • To propose an effective treatment strategy for this complex condition.

Main Methods:

  • Comprehensive review of existing biomechanical and clinical literature.
  • Development of a treatment approach based on established biomechanics and clinical expertise.

Main Results:

  • Various reconstructive techniques exist for acute and chronic IOM injuries.
  • Early diagnosis and intervention are crucial for favorable outcomes.
  • Published series demonstrate that IOM injuries can achieve reasonable results with appropriate management.

Conclusions:

  • Multiple treatment options are available for IOM injuries.
  • High suspicion is warranted for IOM injuries in patients with displaced radial head fractures and wrist pain.
  • Reconstruction of the IOM's central band, radial head replacement, and temporary ulna-radius K-wire fixation yield predictable results.