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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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The ulna and radius are parallel bones of the antebrachium or the forearm. The ulna lies medially and consists of a bony tip called the olecranon process at its proximal end. This hook-like projection articulates with the olecranon fossa of the humerus and forms the "hinged" ulnohumeral part of the elbow joint. This joint facilitates forearm extension and flexion while preventing its hyperextension. Similarly, the coronoid process, another bony projection on the proximal/anterior side...
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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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Development of the Limb Synovial Joints01:07

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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.
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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 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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The Navicular Cuneiform Joint: Updates on Avoiding and Managing a Nonunion.

Dominick Casciato1, Jacob Wynes1

  • 1Department of Orthopaedics, Limb Preservation and Deformity Correction Fellowship, University of Maryland School of Medicine, Baltimore, MD, USA.

Clinics in Podiatric Medicine and Surgery
|September 16, 2023
PubMed
Summary

Naviculocuneiform arthrodesis can fail, leading to nonunion. Successful surgical outcomes depend on understanding patient factors and the cause of nonunion, optimizing surgical techniques for better foot and ankle reconstruction.

Keywords:
FlatfootMedial column fusionMidfoot arthritisNaviculocuneiform fusion

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Area of Science:

  • Orthopedic surgery
  • Foot and ankle reconstruction
  • Podiatric medicine

Background:

  • Naviculocuneiform arthrodesis is a common procedure for medial column support in foot and ankle surgeries.
  • Potential complications include nonunion, impacting surgical success and patient outcomes.
  • Understanding nonunion etiology is crucial for effective management.

Purpose of the Study:

  • To highlight methods for optimizing naviculocuneiform arthrodesis.
  • To discuss patient and host factors influencing nonunion development.
  • To guide surgeons in comprehensive work-up for successful reconstruction.

Main Methods:

  • Review of anatomic and physiologic considerations for surgical optimization.
  • Emphasis on comprehensive patient evaluation to identify nonunion causes.
  • Discussion of strategies for successful foot and ankle reconstruction.

Main Results:

  • Nonunion is a recognized complication of naviculocuneiform arthrodesis.
  • Successful management requires careful assessment of patient-specific factors and nonunion etiology.
  • Optimizing surgical techniques based on anatomical and physiological principles improves outcomes.

Conclusions:

  • Addressing nonunion in naviculocuneiform arthrodesis necessitates a thorough understanding of its causes.
  • Surgeons can improve patient outcomes by optimizing surgical interventions and performing detailed pre-operative assessments.
  • This approach aids in achieving successful foot and ankle reconstructions.