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Related Experiment Video

Updated: May 14, 2026

Setup for the Quantitative Assessment of Motion and Muscle Activity During a Virtual Modified Box and Block Test

Setup for the Quantitative Assessment of Motion and Muscle Activity During a Virtual Modified Box and Block Test

Published on: January 12, 2024

Bony mallet thumb.

Reiji Nishimura¹, Shintaro Matsuura, Takeshi Miyawaki

¹Department of Plastic and Reconstructive Surgery, Jikei University School of Medicine, Japan. reizysusan@gmail.com

Hand Surgery : an International Journal Devoted to Hand and Upper Limb Surgery and Related Research : Journal of the Asia-Pacific Federation of Societies for Surgery of the Hand

|February 19, 2013

Summary

This summary is machine-generated.

Mallet thumb, a rare condition, involves an avulsion fracture. This study successfully treated a mallet thumb case using the extension block Kirchner wire technique, achieving excellent outcomes.

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Area of Science:

Orthopedic surgery
Hand surgery
Traumatology

Background:

Mallet thumb injuries are significantly rarer than mallet finger injuries.
Avulsion fractures are a common complication in mallet thumb injuries.
Non-operative treatments often yield suboptimal results for mallet thumb.

Observation:

A rare case of mallet thumb with an associated avulsion fracture was presented.
The injury involved the distal interphalangeal joint of the thumb.
Conservative management was considered insufficient due to the fracture component.

Findings:

The extension block Kirchner wire technique was employed for surgical fixation.
This technique effectively stabilized the avulsion fracture and realigned the joint.
Excellent functional and radiological results were achieved post-operatively.

Implications:

The extension block Kirchner wire technique is a viable and effective treatment for mallet thumb with avulsion fracture.
This case highlights the importance of considering surgical intervention for specific mallet thumb presentations.
Further research into surgical techniques for mallet thumb injuries is warranted to optimize patient outcomes.