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Related Concept Videos

Joints01:26

Joints

28.7K
Joints, also called articulations or articular surfaces, are points at which ligaments or other tissues connect adjacent bones. Joints permit movement and stability, and can be classified based on their structure or function.
Structural joint classifications are based on the material that makes up the joint as well as whether or not the joint contains a space between the bones. Joints are structurally classified as fibrous, cartilaginous, or synovial.
Fibrous Joints Are Immovable
The bones of a...
28.7K
Functional Classification of Joints01:09

Functional Classification of Joints

8.1K
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...
8.1K
Structural Joints: Synovial Joints01:16

Structural Joints: Synovial Joints

8.0K
Synovial joints are the most common type of joint in the body. A key structural characteristic for a synovial joint is the presence of a joint cavity. This fluid-filled space is where the articulating surfaces of the bones contact each other. Also, unlike fibrous or cartilaginous joints, the articulating bone surfaces at a synovial joint are not directly connected to each other with fibrous connective tissue or cartilage. This gives the bones of a synovial joint the ability to move smoothly...
8.0K
Knee Joint01:23

Knee Joint

3.4K
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...
3.4K
Ankle Joint01:10

Ankle Joint

3.4K
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...
3.4K

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Related Experiment Video

Updated: Apr 30, 2026

Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach
09:01

Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach

Published on: January 24, 2018

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Joint replacement for arthritis

N Brewster1, P Lewis

  • 1Queen Elizabeth Hospital, Woodville, SA.

Australian Family Physician
|March 21, 1998
PubMed
Summary
This summary is machine-generated.

Joint replacement surgery, commonly for hip and knee osteoarthritis, alleviates pain and improves function. This review covers indications, patient assessment, surgical outcomes, and current concepts in joint replacement.

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Tissue Collection and RNA Extraction from the Human Osteoarthritic Knee Joint
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Tissue Collection and RNA Extraction from the Human Osteoarthritic Knee Joint

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Related Experiment Videos

Last Updated: Apr 30, 2026

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Tissue Collection and RNA Extraction from the Human Osteoarthritic Knee Joint
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Area of Science:

  • Orthopedic Surgery
  • Rheumatology

Background:

  • Joint replacement is a common procedure for osteoarthritis, primarily affecting the hip and knee.
  • Other joints like the shoulder, elbow, ankle, and metacarpophalangeal joints may be replaced, typically due to rheumatoid arthritis.
  • The primary benefit is pain relief, with secondary improvements in range of motion, function, limb length, and joint alignment.

Purpose of the Study:

  • To outline the indications for joint replacement surgery.
  • To describe patient assessment protocols for joint replacement candidates.
  • To review outcomes of various joint replacement surgeries and discuss contemporary surgical concepts.

Main Methods:

  • Literature review of joint replacement indications and outcomes.
  • Discussion of patient assessment criteria.
  • Analysis of current trends and concepts in joint replacement surgery.

Main Results:

  • Joint replacement effectively manages arthritic pain, particularly in the hip and knee.
  • Functional improvements and restoration of alignment are significant benefits.
  • Outcomes vary by joint and underlying condition, with ongoing advancements in surgical techniques.

Conclusions:

  • Joint replacement is a vital treatment for debilitating joint conditions, offering pain relief and functional restoration.
  • Careful patient selection and assessment are crucial for successful outcomes.
  • The field continues to evolve with innovative surgical approaches and technologies.