[Comparison of two arthroscopic classifications for scapholunate instability]

Area of Science:

• Orthopedics
• Hand Surgery
• Arthroscopy

Background:

• Scapholunate instability is a common wrist condition.
• Existing arthroscopic classifications by Geissler and Dautel have limitations.
• Standardized classification is crucial for effective treatment.

Purpose of the Study:

• To prospectively compare the Geissler and Dautel arthroscopic classifications for scapholunate instability.
• To evaluate their ease of use and utility in guiding treatment algorithms.
• To propose an improved classification based on study findings.

Main Methods:

• Prospective, multicentric study involving 50 patients with scapholunate instability.
• Data collected by eight surgeons across eight institutions.
• Inclusion of physical, radiographic, and arthroscopic assessments.
• Evaluation of classification ease of use and treatment algorithm suitability.

Main Results:

• Both Geissler and Dautel classifications have distinct advantages and disadvantages.
• Neither classification was found to be ideal for all aspects of scapholunate instability.
• Surgeon feedback highlighted areas for improvement in usability and treatment guidance.

Conclusions:

• A new, comprehensive arthroscopic classification for scapholunate instability is proposed.
• The proposed classification aims to be simple, reproducible, and precise.
• It particularly improves the assessment of scapholunate ligament status for better patient outcomes.