Related Experiment Video
Updated: Jan 9, 2026

Vascularized Composite Hand Allograft Procurement and Preparation for Distal and Proximal Forearm Allotransplantation: A Stepwise Approach
Published on: May 23, 2025
Lesions of the Extensor Tendons at the Hand
1Medical Radiological Institute (MRI) Zurich, Schulthess Clinic, Zurich, Switzerland.
None:
Disorders of the extensor mechanism of the wrist and hand are frequently encountered in clinical practice and observed more commonly than pathologies affecting the flexor system. When unrecognized or inadequately treated, these conditions may lead to substantial functional impairment and suboptimal clinical outcomes. Extensor tendon pathologies encompass a wide range of etiologies, such as repetitive overuse, acute trauma, inflammatory arthropathies, and degenerative tendinopathies. Accurate diagnosis depends on a thorough clinical evaluation, supported by high-resolution imaging. Ultrasound and magnetic resonance imaging are particularly useful for assessing tendon structure, surrounding soft tissues, and dynamic abnormalities. This review offers an updated overview of extensor tendon disorders of the wrist and fingers, focusing on their underlying causes and key imaging findings on magnetic resonance imaging and ultrasound to support an accurate and efficient diagnosis by radiologists.
Related Concept Videos
Muscles of the Forearm that Move the Hand and Fingers
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...
Muscles that Move the Forearm
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...
Bones of the Upper Limb: Ulna
Bones of the Upper Limb: Humerus
Bones of the Upper Limb: Radius
The radius has a nail-shaped head, and a...
Spinal Nerves: Plexus I
The Cervical Plexus
The cervical plexus, formed by the anterior rami of the first four...

