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

Bones of the Upper Limb: Ulna

Bones of the Upper Limb: Ulna

The ulna and radius are parallel bones of the antebrachium or the forearm. The ulna lies medially and consists of a bony tip called the olecranon process at its proximal end. This hook-like projection articulates with the olecranon fossa of the humerus and forms the "hinged" ulnohumeral part of the elbow joint. This joint facilitates forearm extension and flexion while preventing its hyperextension. Similarly, the coronoid process, another bony projection on the proximal/anterior side...

You might also read

Related Articles

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

Sort by

Same author

Kinetic and thermodynamic properties of phosphorothioate and phosphorodiamidate morpholino oligonucleotides binding to target RNA.

Journal of biochemistry·2026

Same author

Time-resolved transcriptomics of haemocyte discrimination between challenges by nematodes and inert material in the oriental armyworm <i>Mythimna separata</i>.

Frontiers in immunology·2026

Same author

Correction: Time-resolved transcriptomics of haemocyte discrimination between challenges by nematodes and inert material in the Oriental Armyworm <i>Mythimna separata</i>.

Frontiers in immunology·2026

Same author

A One-Year Retrospective Study of the Occurrence of Sport-Related Concussions in Japanese University Sports: Characteristics of Athletes with Multiple Occurrences.

Sports (Basel, Switzerland)·2026

Same author

Comparison of patient characteristics and end-of-life treatments among cancer descendants between designated cancer care hospitals and non-designated hospitals using the national claims database in Japan.

Japanese journal of clinical oncology·2026

Same author

Complement activation profile in adult primary immune thrombocytopenia.

Blood·2026

Search research articles

Related Experiment Video

Updated: Apr 25, 2026

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

How does ulnar shortening osteotomy influence morphologic changes in the triangular fibrocartilage complex?

Yoshiaki Yamanaka¹, Toshiyasu Nakamura, Kazuki Sato

¹Department of Orthopaedic Surgery, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.

Clinical Orthopaedics and Related Research

|August 14, 2014

Summary

This summary is machine-generated.

Ulnar shortening osteotomy may promote triangular fibrocartilage complex (TFCC) disc regeneration, especially with lower preoperative ulnar variance. However, this regeneration and suspension effect did not correlate with patient-reported wrist scores.

More Related Videos

Destabilization of the Medial Meniscus and Cartilage Scratch Murine Model of Accelerated Osteoarthritis

Destabilization of the Medial Meniscus and Cartilage Scratch Murine Model of Accelerated Osteoarthritis

Published on: July 6, 2022

A Reproducible Cartilage Impact Model to Generate Post-Traumatic Osteoarthritis in the Rabbit

A Reproducible Cartilage Impact Model to Generate Post-Traumatic Osteoarthritis in the Rabbit

Published on: November 21, 2023

Related Experiment Videos

Last Updated: Apr 25, 2026

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

Destabilization of the Medial Meniscus and Cartilage Scratch Murine Model of Accelerated Osteoarthritis

Destabilization of the Medial Meniscus and Cartilage Scratch Murine Model of Accelerated Osteoarthritis

Published on: July 6, 2022

A Reproducible Cartilage Impact Model to Generate Post-Traumatic Osteoarthritis in the Rabbit

A Reproducible Cartilage Impact Model to Generate Post-Traumatic Osteoarthritis in the Rabbit

Published on: November 21, 2023

Area of Science:

Orthopedic surgery
Radiology
Biomechanical analysis

Background:

Ulnar shortening osteotomy is a common treatment for triangular fibrocartilage complex (TFCC) injuries.
The impact of this surgery on TFCC shape, specifically disc regeneration and suspension effects, requires further quantitative evaluation.

Purpose of the Study:

To quantitatively assess TFC thickness changes (disc regeneration) and TFC angle changes (suspension effect) after ulnar shortening osteotomy using MRI.
To determine if these quantitative changes correlate with the Mayo wrist score.

Main Methods:

Retrospective analysis of 79 patients who underwent ulnar shortening osteotomy for TFCC injuries.
Preoperative and postoperative MRI measurements of TFC thickness and TFC angle.
Correlation analysis with patient demographics, surgical extent, and Mayo wrist scores.

Main Results:

A correlation was found between increased TFC thickness (disc regeneration) and lower preoperative ulnar variance.
The change in TFC angle (suspension effect) correlated with the extent of ulnar shortening.
No significant correlation was observed between TFC changes and the Mayo wrist score.

Conclusions:

Ulnar shortening osteotomy shows potential for TFCC disc regeneration, particularly in patients with less preoperative ulnar variance.
The surgical suspension effect on the TFC is related to the degree of ulnar shortening.
Neither disc regeneration nor the suspension effect post-surgery predicted patient functional outcomes as measured by the Mayo wrist score.