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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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Knee Joint01:23

Knee Joint

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The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris...
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Related Experiment Video

Updated: Dec 13, 2025

Anterior Cruciate Ligament Transection and Synovial Fluid Lavage in a Rodent Model to Study Joint Inflammation and Posttraumatic Osteoarthritis
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Initial Evaluation and Classification of Knee Dislocations.

Andrew C Ockuly1, Allicia O Imada, Dustin L Richter

  • 1Department of Orthopaedic Surgery, University of New Mexico, Albuquerque, NM.

Sports Medicine and Arthroscopy Review
|August 3, 2020
PubMed
Summary
This summary is machine-generated.

Traumatic knee dislocation (KD) involves multiple ligament injuries, often affecting both cruciate ligaments. Prompt evaluation, especially of vascular status, is crucial for managing these complex knee injuries.

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Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Traumatology

Background:

  • Traumatic knee dislocation (KD) is a severe injury involving multiple ligamentous structures.
  • These injuries frequently impact both cruciate ligaments, with varying degrees of collateral ligament damage.
  • KD severity ranges from complete joint dislocation to spontaneously reduced injuries, potentially with neurovascular compromise.

Purpose of the Study:

  • To elucidate the complexity of traumatic knee dislocations.
  • To emphasize the importance of thorough patient evaluation, particularly vascular assessment.
  • To highlight the utility of anatomic classification systems for KDs.

Main Methods:

  • Review of traumatic knee dislocation characteristics.
  • Emphasis on clinical presentation and diagnostic considerations.
  • Discussion of existing classification systems for knee injuries.

Main Results:

  • KDs are defined by injury to multiple knee ligaments, not exclusively multiligament injuries.
  • Patient presentation varies significantly, including neurovascular status.
  • Anatomic classification is considered most practical for KD management.

Conclusions:

  • Traumatic knee dislocation requires comprehensive evaluation, prioritizing vascular assessment.
  • Understanding the spectrum of KD severity is essential for appropriate treatment.
  • The anatomic classification system offers practical application in managing these complex knee injuries.