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Related Concept Videos

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Treatment for a fracture is based on the type of break, the bone affected, and the patient's age.
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Classification of Bones01:18

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The bones of the human skeletal system are of varied shapes, sizes, and functions. They can be classified based on their shape and function into four major classes: long bones, short bones, flat bones, and irregular bones. Some classifications include a fifth type, the sesamoid bones, as a separate class, whereas others categorize them under short bones.
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Functional Classification of Joints01:09

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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
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Structural Classification of Joints01:20

Structural Classification of Joints

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Joints, also known as articulations, are classified based on their structural characteristics, i.e., based on whether the articulating surfaces of the adjacent bones are directly connected by fibrous connective tissue or cartilage, or whether the articulating surfaces contact each other within a fluid-filled joint cavity. These differences serve to divide the joints of the body into three structural classifications.
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Structural Joints: Fibrous Joints01:03

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Fibrous joints are a type of joint where the bones are connected by fibrous connective tissue. These joints provide stability and minimal to no movement between the articulating bones. There are three types of fibrous joints.
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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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Less-Invasive Technique for Non-stabilized Mandibular Fracture in Mouse Models
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Mandibular Ramus Fractures: A Proposed Classification.

Padmanidhi Agarwal1, Divya Mehrotra2

  • 1Department of Dentistry and Cranio-Maxillofacial Surgery All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India.

Craniomaxillofacial Trauma & Reconstruction
|July 10, 2020
PubMed
Summary
This summary is machine-generated.

This study classifies mandibular ramus fractures, identifying five common patterns. Understanding these patterns aids in managing these rare but complex fractures, improving patient outcomes.

Keywords:
classificationincidencemandiblemandibular fracturesopen fracture reductionramus

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Trauma Surgery
  • Anatomy

Background:

  • Mandibular ramus fractures are uncommon but require clear management strategies.
  • Existing classifications may not fully capture fracture patterns.
  • Understanding ramus fracture epidemiology is crucial for trauma care.

Purpose of the Study:

  • To develop a simplified classification system for mandibular ramus fractures.
  • To facilitate improved clinical management of these injuries.

Main Methods:

  • Literature review of mandibular ramus fracture demographics.
  • Analysis of 5-year patient data from an institute's emergency/outpatient clinic.
  • Radiological assessment to identify and categorize repetitive fracture patterns.

Main Results:

  • Mandibular ramus fractures accounted for 2.4% of all mandibular fractures.
  • Predominantly seen in males due to road traffic accidents, especially motorcycle incidents (64%).
  • Five distinct fracture patterns (Type I-V) were identified, with Type I being most common and Type IV least common.

Conclusions:

  • A novel classification of mandibular ramus fractures (Type I-V) has been devised.
  • This classification emphasizes the importance of the mandibular buttress and guides complex fracture treatment.
  • Further research is needed to compare different management approaches for these fractures.