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Related Concept Videos

Functional Classification of Joints01:09

Functional Classification of Joints

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Functional Classification of Joints
The functional classification of joints is determined by the amount of mobility between the adjacent bones. Joints are functionally classified as a synarthrosis or immobile joint, an amphiarthrosis or slightly moveable joint, or as a diarthrosis, a freely moveable joint. Fibrous and cartilaginous joints can be functionally classified as either synarthroses  or amphiarthroses, whereas all synovial joints are classified as diarthroses.
Synarthrosis
An...
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Ankle Joint01:10

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The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...
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Muscles of the Forearm that Move the Hand and Fingers01:17

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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Fractures: Bone Repair01:27

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Treatment for a fracture is based on the type of break, the bone affected, and the patient's age.
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the...
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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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Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)01:16

Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)

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Ring-opening metathesis polymerization or ROMP involves strained cycloalkenes as starting materials. The mechanism of ROMP proceeds by reacting cycloalkene with Grubbs catalyst to give metallacyclobutane intermediate which undergoes a ring-opening reaction to form new carbene. The new carbene reacts with another molecule of cycloalkene. Repetition of these steps leads to the formation of an unsaturated open-chain polymer product. All these steps are reversible, however, relieving the ring...
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Related Experiment Video

Updated: Aug 15, 2025

Metacarpal Small Incision for Carpal Tunnel Syndrome
04:08

Metacarpal Small Incision for Carpal Tunnel Syndrome

Published on: April 5, 2024

564

[Open metacarpophalangeal dislocation].

Elodie Praz1, Philippe Vostrel2, Matteo Coen3,4

  • 1Service de Médecine de Premier Recours, Hôpitaux Universitaires de Genève, Genève, Suisse.

Praxis
|January 4, 2023
PubMed
Summary
This summary is machine-generated.

Open metacarpophalangeal dislocation is a common emergency center presentation. This case highlights proper management and specialist referral criteria for finger dislocations.

Keywords:
FingerLuxationdoigtfingeroffenopenouvert

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Area of Science:

  • Orthopedics
  • Emergency Medicine
  • Hand Surgery

Context:

  • Finger dislocations, specifically metacarpophalangeal (MCP) joint dislocations, are frequently treated in emergency departments.
  • Prompt and accurate diagnosis is crucial for effective management.
  • Understanding referral criteria ensures optimal patient outcomes.

Purpose:

  • To review the management of open metacarpophalangeal dislocations.
  • To emphasize the importance of timely specialist consultation.
  • To provide a case example illustrating best practices.

Summary:

  • Open metacarpophalangeal dislocation requires immediate attention and appropriate treatment.
  • Management involves reduction, wound care, and assessment for associated injuries.
  • Referral to a hand specialist is indicated in complex cases or when initial reduction fails.

Impact:

  • Improved understanding of open MCP dislocation management.
  • Reduced risk of complications associated with delayed or improper treatment.
  • Enhanced patient care through timely specialist intervention.