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Related Concept Videos

Knee Joint01:23

Knee Joint

2.4K
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...
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Muscles that Move the Leg01:23

Muscles that Move the Leg

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The movement of the legs is facilitated by numerous muscles located within the anterior, medial, and posterior compartments of the thigh.
Anterior Compartment
The quadriceps femoris, the most visible muscle of the anterior compartment, is integral for leg extension and thigh flexion. It is formed by merging four distinct muscles — the vastus lateralis, vastus medialis, vastus intermedius, and rectus femoris. The quadriceps tendon, a shared tendon of the four quadriceps muscles, is affixed...
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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...
5.3K
Bones of the Lower Limb: Femur and Patella01:16

Bones of the Lower Limb: Femur and Patella

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The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the...
3.5K
Development of the Limb Synovial Joints01:07

Development of the Limb Synovial Joints

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Joints form during embryonic development in conjunction with the formation and growth of the associated bones. The embryonic tissue that gives rise to all bones, cartilage, and connective tissues of the body is called mesenchyme.
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
1.7K
Ankle Joint01:10

Ankle Joint

2.0K
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...
2.0K

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Related Experiment Video

Updated: Oct 8, 2025

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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Knee joint dislocation: overview and current concepts.

Fitzgerald C Anazor1, Kwaku Baryeh1, Neville C Davies1

  • 1Department of Trauma and Orthopaedics, Royal Berkshire Hospital, Reading, UK.

British Journal of Hospital Medicine (London, England : 2005)
|January 5, 2022
PubMed
Summary
This summary is machine-generated.

Knee joint dislocation is a rare but serious injury. Prompt clinical evaluation and multidisciplinary care are crucial for managing vascular, neurological, and ligament damage, despite potential long-term limitations.

Keywords:
Knee dislocationKnee jointMulti-ligamentous knee injuryNeurovascular injuryTibiofemoral joint dislocation

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Area of Science:

  • Orthopedics
  • Traumatology
  • Sports Medicine

Background:

  • Knee joint dislocation is an uncommon yet severe injury.
  • It carries a high risk of associated vascular, neurological, and multi-ligamentous damage.
  • Diagnosis often requires a high index of clinical suspicion, as plain X-rays may not reveal all dislocations.

Purpose of the Study:

  • To provide insights into the epidemiology of knee joint dislocations.
  • To discuss the critical management strategies for knee joint dislocations.
  • To highlight the potential long-term functional limitations following this injury.

Main Methods:

  • Review of epidemiological data related to knee joint dislocations.
  • Analysis of clinical evaluation and diagnostic approaches.
  • Discussion of multidisciplinary care and surgical management options (ligament repair/reconstruction).

Main Results:

  • Knee dislocations require a high index of suspicion beyond plain radiography.
  • Multidisciplinary specialist care is essential for optimal outcomes.
  • While early surgical intervention improves outcomes, some long-term functional limitations persist.

Conclusions:

  • Effective management of knee joint dislocation necessitates a comprehensive approach.
  • Early diagnosis and timely, specialized treatment are paramount.
  • Patients may experience residual functional deficits despite optimal care.