Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Functional Classification of Joints

Functional Classification of Joints

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 immobile...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Single-stage long-stem total knee arthroplasty in severe arthritis with stress fracture: a systematic review.

Knee surgery & related research·2023

Same author

Unusual Triad of Bifid Median Nerve, Persistent Median Artery, and Aberrant Muscle Causing Carpal Tunnel Syndrome: A Case Report.

JBJS case connector·2020

Same author

Flexor tendon repair with amniotic membrane.

International orthopaedics·2020

Same author

Juncturae Tendinum Transfer for Extensor Tendon Reconstruction: A Case Report.

JBJS case connector·2020

Same author

Ventral scapular osteochondroma excision through 'triangle of auscultation': A case series.

Journal of orthopaedic surgery (Hong Kong)·2020

Search research articles

Related Experiment Video

Updated: Jul 10, 2026

Metacarpal Small Incision for Carpal Tunnel Syndrome

Metacarpal Small Incision for Carpal Tunnel Syndrome

Published on: April 5, 2024

Complex, Multidirectional Carpometacarpal Dislocations: A Case Report.

Anil Dhal¹, Saket Prakash, Pulkit Kalra

¹Department of Orthopaedics, Maulana Azad Medical College & Lok Nayak Hospital, New Delhi, India.

JBJS Case Connector

|September 10, 2020

Summary

This summary is machine-generated.

A rare combined convergent-divergent carpometacarpal (CMC) fracture dislocation involving the median nerve was treated surgically. This case highlights the importance of advanced imaging for diagnosing complex CMC dislocations after high-energy trauma.

More Related Videos

Novel Triple-Loop Technique for Suturing TFCC Injuries without Transosseous Tunnel

Novel Triple-Loop Technique for Suturing TFCC Injuries without Transosseous Tunnel

Published on: May 23, 2025

Related Experiment Videos

Last Updated: Jul 10, 2026

Metacarpal Small Incision for Carpal Tunnel Syndrome

Metacarpal Small Incision for Carpal Tunnel Syndrome

Published on: April 5, 2024

Novel Triple-Loop Technique for Suturing TFCC Injuries without Transosseous Tunnel

Novel Triple-Loop Technique for Suturing TFCC Injuries without Transosseous Tunnel

Published on: May 23, 2025

Area of Science:

Orthopedic Surgery
Trauma Surgery
Hand Surgery

Background:

Carpometacarpal (CMC) joint dislocations are uncommon injuries.
High-energy trauma can result in complex fracture dislocations of the CMC joints.

Observation:

A young adult sustained a rare combined convergent-divergent CMC fracture dislocation after a motorbike accident.
Radiographs demonstrated volar dislocation of the second and fifth metacarpals and dorsal dislocation of the third and fourth metacarpals.
The bases of the second and fifth metacarpals converged in the coronal plane, with associated median nerve involvement.

Findings:

Surgical intervention involving open reduction and internal fixation was performed.
Carpal tunnel release was necessary due to median nerve involvement.

Implications:

Combined convergent-divergent CMC fracture dislocation should be considered in the differential diagnosis of CMC dislocations.
Advanced imaging, including 3D CT reconstructions and specific radiographic views (metacarpal cascade line, radial/ulnar lateral views), is crucial for accurate diagnosis.
Prompt surgical management is essential for favorable outcomes in these complex injuries.