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Related Concept Videos

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
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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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The appendicular skeleton, particularly the upper and lower limbs, is primarily made of long and short bones. The...
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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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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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Updated: Aug 23, 2025

Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach
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An evaluation model for children's foot & ankle deformity severity using sparse multi-objective feature selection

Xiaotian Pan1, Guodao Zhang2, Aiju Lin3

  • 1School of Information Management and Artificial Intelligence, Zhejiang University of Finance and Economics, Hangzhou 310018, China.

Computers in Biology and Medicine
|October 29, 2022
PubMed
Summary
This summary is machine-generated.

This study developed a machine learning model for diagnosing children's foot and ankle deformities. The model achieved over 98% accuracy, enabling objective and early detection for better treatment outcomes.

Keywords:
Data miningEvolutionary algorithmFoot & ankle deformityMachine learningMedical diagnosis

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Area of Science:

  • Biomedical Engineering
  • Data Science
  • Pediatric Orthopedics

Background:

  • Foot and ankle deformities are common chronic childhood conditions requiring early intervention.
  • Current diagnostic methods lack objective quantitative evaluation, leading to low screening rates.

Purpose of the Study:

  • To develop an objective and quantitative evaluation model for pediatric foot and ankle deformities.
  • To improve early detection and screening rates for effective treatment.

Main Methods:

  • Defined grading rules for deformity severity using quantitative indexes and expert experience.
  • Collected 30 structural foot indexes using a 3D foot scanner.
  • Employed a sparse multi-objective evolutionary algorithm (sparse MO-FS) for feature selection.

Main Results:

  • The sparse MO-FS algorithm identified key features: foot length, arch index, ankle index, and hallux valgus index.
  • The selected features simplified the evaluation model.
  • Random forest classification accuracy exceeded 98%.

Conclusions:

  • The developed data mining and machine learning model provides an effective tool for diagnosing children's foot and ankle deformities.
  • Objective quantitative evaluation enhances diagnostic accuracy and facilitates timely treatment.