Clinical practice algorithm for Eaton's injury of the thumb.

Area of Science:

• Orthopedics
• Hand Surgery
• Musculoskeletal Disorders

Background:

• Trapeziometacarpal (TMC) joint instability is a frequent yet overlooked cause of basal thumb pain.
• Accurate diagnosis requires a systematic approach integrating anatomical knowledge and clinico-pathological correlation.

Purpose of the Study:

• To provide an overview of diagnostic principles and management strategies for TMC joint instability.
• To propose a clinical evaluation algorithm for Eaton's injury of the thumb.

Main Methods:

• Systematic review of literature on TMC joint instability.
• Development of a diagnostic and management algorithm based on clinical evidence.

Main Results:

• TMC joint instability presents a diagnostic challenge due to under-recognition.
• A structured approach enhances diagnostic accuracy and guides appropriate management.
• The proposed algorithm offers a framework for clinical application in evaluating Eaton's injury.

Conclusions:

• Effective management of basal thumb pain necessitates recognizing and addressing TMC joint instability.
• The presented evaluation algorithm aids clinicians in diagnosing and managing Eaton's injury.
• Further research can validate the proposed algorithm's clinical utility and impact on patient outcomes.