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Related Concept Videos

Ankle Joint01:10

Ankle Joint

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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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Bones of the Lower Limb: Tibia and Fibula01:10

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The tibia is the main weight-bearing bone of the lower leg. It is larger than the fibula with which it is paired. The tibia is also the second longest bone in the body and is located right below the skin. The proximal end of the tibia forms the medial and the lateral condyle, which articulates with the condyles of the femur to form the knee joint. Between the articulating surfaces is the irregular elevated area known as the intercondylar eminence that serves as the inferior attachment point for...
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Bones of the Lower Limb: Femur and Patella01:16

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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...
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Flail Chest-I01:24

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Overview of Flail Chest
Flail chest is a severe and potentially life-threatening condition characterized by the fracture of three or more adjacent ribs in multiple places. It is most commonly caused by direct impacts and trauma, such as motor vehicle accidents or injuries from a steering wheel impact. It can also occur due to falls in elderly individuals with osteoporosis, or assaults involving sharp objects.
Pathophysiology
The pathophysiology of flail chest is complex, involving fractures of...
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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...
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Bones of the Upper Limb: Radius01:09

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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.
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Related Experiment Video

Updated: Nov 22, 2025

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

Faisal Mahmood1, Milind Mehta2, Rahul Kakkar1

  • 1Furness General Hospital, Barrow-in-Furness, Cumbria, UK mahmood.f.94@hotmail.co.uk rahul.kakkar@mbht.nhs.uk.

BMJ Case Reports
|January 7, 2021
PubMed
Summary
This summary is machine-generated.

A rare pisiform dislocation injury was successfully treated with closed reduction under a hematoma block. Prompt emergency department intervention led to complete symptom resolution for this hand injury.

Keywords:
orthopaedic and trauma surgeryradiology (diagnostics)trauma

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Area of Science:

  • Orthopedic Surgery
  • Traumatology
  • Hand Surgery

Background:

  • Pisiform dislocation is an infrequent wrist injury.
  • Limited literature exists, primarily case reports.
  • Early diagnosis and management are crucial to prevent morbidity.

Observation:

  • A 51-year-old male sustained a pisiform dislocation after a fall.
  • The patient presented to the emergency department on the same day.

Findings:

  • A closed reduction was successfully performed under a hematoma block.
  • The patient experienced complete symptom resolution upon follow-up.

Implications:

  • This case highlights the efficacy of prompt closed reduction for pisiform dislocations.
  • It underscores the importance of recognizing this uncommon injury.
  • Successful non-operative management can lead to excellent patient outcomes.