Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Muscles of the Forearm that Move the Hand and Fingers01:17

Muscles of the Forearm that Move the Hand and Fingers

1.7K
The muscles of the forearm that move the wrist, hand, and digits are numerous and diverse. They can be classified into two groups based on their location and function — the anterior and posterior compartment muscles.
Anterior Compartment
The anterior compartment muscles originate from the humerus. They primarily function as flexors and are also known as flexor muscles. They typically insert on the carpals, metacarpals, and phalanges. The superficial layer includes the flexor carpi...
1.7K
Ankle Joint01:10

Ankle Joint

2.1K
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...
2.1K
Bones of the Upper Limb: Radius01:09

Bones of the Upper Limb: Radius

3.8K
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.
The radius has a nail-shaped head, and a...
3.8K
Functional Classification of Joints01:09

Functional Classification of Joints

5.6K
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...
5.6K

You might also read

Related Articles

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

Sort by
Same author

Current Concepts: Lesser Digit Carpometacarpal Joint Fracture-Dislocations.

The Journal of hand surgery·2026
Same author

Distal Interphalangeal Joint Fractures of the Hand.

The Journal of the American Academy of Orthopaedic Surgeons·2025
Same author

Assessment and Fixation Strategies for the Unstable Volar Lunate Facet.

The Journal of the American Academy of Orthopaedic Surgeons·2024
Same author

Articular Fragment Escape and Carpal Subluxation Following Distal Radius Fracture Fixation.

The Journal of hand surgery·2024
Same author

Elbow ulnar collateral ligament reconstruction using suture tape augmentation.

JSES reviews, reports, and techniques·2023
Same author

Midcarpal Instability.

The Journal of the American Academy of Orthopaedic Surgeons·2023
Same journal

Surgical Fixation Versus Cast Immobilization for Adults With Bicortical Scaphoid Fractures: A Target Trial Emulation of the SWIFFT Trial.

The Journal of the American Academy of Orthopaedic Surgeons·2026
Same journal

Dementia as a Marker of Poor Outcome After Hip Hemiarthroplasty.

The Journal of the American Academy of Orthopaedic Surgeons·2026
Same journal

Fix or Replace: Evidence for Treatment Options in the Management of Femoral Neck Fractures.

The Journal of the American Academy of Orthopaedic Surgeons·2026
Same journal

Epidemiology, Treatment Patterns, and Comorbidities of Trigger Finger: A Contemporary Population-Based Analysis.

The Journal of the American Academy of Orthopaedic Surgeons·2026
Same journal

Posterior Approaches to Pilon Fractures: Considerations, Indications, and Outcomes.

The Journal of the American Academy of Orthopaedic Surgeons·2026
Same journal

Effect of Season on Patient-reported Outcomes and Discharge Disposition in Total Hip and Knee Arthroplasty.

The Journal of the American Academy of Orthopaedic Surgeons·2026
See all related articles

Related Experiment Video

Updated: Oct 28, 2025

Metacarpal Small Incision for Carpal Tunnel Syndrome
04:08

Metacarpal Small Incision for Carpal Tunnel Syndrome

Published on: April 5, 2024

797

Thumb Carpometacarpal Instability.

Remy V Rabinovich1, Daniel B Polatsch, Steven S Shin

  • 1From the Attending Hand Surgeon, New York Hand & Wrist Center of Lenox Hill, New York, NY (Rabinovich, Beldner, and Polatsch), and the Attending Hand Surgeon, Cedars-Sinai Kerlan-Jobe Institute, Los Angeles, CA (Shin).

The Journal of the American Academy of Orthopaedic Surgeons
|July 16, 2021
PubMed
Summary
This summary is machine-generated.

Thumb carpometacarpal joint instability, often due to its unique saddle articulation, requires thorough evaluation. Treatment options for this common hand issue range from nonoperative care to surgical ligament repair and reconstruction.

More Related Videos

Novel Triple-Loop Technique for Suturing TFCC Injuries without Transosseous Tunnel
08:27

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

Published on: May 23, 2025

387
A Mouse Model of Ankle-Subtalar Complex Joint Instability
09:14

A Mouse Model of Ankle-Subtalar Complex Joint Instability

Published on: October 28, 2022

1.5K

Related Experiment Videos

Last Updated: Oct 28, 2025

Metacarpal Small Incision for Carpal Tunnel Syndrome
04:08

Metacarpal Small Incision for Carpal Tunnel Syndrome

Published on: April 5, 2024

797
Novel Triple-Loop Technique for Suturing TFCC Injuries without Transosseous Tunnel
08:27

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

Published on: May 23, 2025

387
A Mouse Model of Ankle-Subtalar Complex Joint Instability
09:14

A Mouse Model of Ankle-Subtalar Complex Joint Instability

Published on: October 28, 2022

1.5K

Area of Science:

  • Orthopedics
  • Hand Surgery
  • Anatomy

Background:

  • The thumb carpometacarpal (CMC) joint's saddle articulation enables extensive hand motion but is prone to instability due to inherent laxity.
  • Instability can arise from trauma, hypermobility, or chronic overuse, impacting hand function significantly.

Purpose of the Study:

  • To review the anatomy of the thumb CMC joint.
  • To outline evaluation methods for acute traumatic and chronic instability.
  • To summarize current nonoperative and operative treatment strategies for CMC joint instability without fracture or arthritis.

Main Methods:

  • Literature review focusing on anatomical structures, diagnostic evaluations, and therapeutic interventions for thumb CMC joint instability.
  • Analysis of nonoperative treatments including bracing and physical therapy.
  • Review of surgical techniques such as ligament repair, reconstruction, and arthroscopic procedures.

Main Results:

  • The thumb CMC joint's stability relies heavily on its capsuloligamentous structures.
  • Comprehensive history, physical examination, and imaging are crucial for accurate diagnosis.
  • A spectrum of treatments exists, from conservative management to complex surgical reconstructions.

Conclusions:

  • Understanding the intricate anatomy and biomechanics of the thumb CMC joint is essential for managing instability.
  • Tailored treatment plans, considering patient factors and injury severity, are necessary for optimal outcomes.
  • Both nonoperative and operative interventions play vital roles in restoring thumb function and stability.