Thumb basal joint arthritis: New classification, diagnostic and therapeutic algorithm.

Area of Science:

• Orthopedics
• Radiology
• Hand Surgery

Background:

• Thumb basal joint arthritis is common and impacts hand function.
• Current radiographic assessment and classification systems are often limited.
• Diagnosis requires considering multiple joints of the thumb column.

Purpose of the Study:

• To review existing classifications for thumb basal joint arthritis.
• To propose a novel classification system encompassing the entire thumb column.
• To outline therapeutic options based on comprehensive assessment.

Main Methods:

• Review of current literature on thumb basal joint arthritis classifications.
• Development of a new classification system based on radiographic evaluation of the entire thumb column.
• Analysis of therapeutic strategies linked to the proposed classification.

Main Results:

• Existing classifications do not fully capture the extent of thumb basal joint arthritis.
• A new classification system is proposed, integrating the scaphotrapeziotrapezoid joint, carpus, and metacarpophalangeal joint.
• The proposed system aims to provide a more accurate basis for treatment selection.

Conclusions:

• A holistic radiographic assessment of the thumb column is crucial for diagnosing basal joint arthritis.
• The proposed classification system offers a comprehensive approach to evaluating thumb basal joint arthritis.
• Accurate classification facilitates tailored and effective treatment strategies.