Another Classification of First Metatarsophalangeal Joint Dislocation-Type 3: Review and Case Description of the

Christopher R Hood1, Paxon J Riding2, Anthony C Cook3

  • 1Fellowship-Trained Foot and Ankle Surgeon, Premier Orthopaedics and Sports Medicine, Malvern, PA.

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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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Functional Classification of Joints01:09

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Functional Classification of Joints
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Types of Building Separation Joints

Building separation joints divide large or complex building structures into smaller, discrete units that can move independently. These joints are categorized into three types: volume-change joints, settlement joints, and seismic separation joints.
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