Posttraumatic Boutonnière and Swan Neck Deformities

Area of Science:

• Orthopedic Surgery
• Hand Surgery
• Traumatology

Background:

• Boutonnière and swan neck deformities can arise from finger trauma.
• The extensor mechanism's complex anatomy complicates understanding these deformities.
• Posttraumatic deformities differ from inflammatory arthritis, necessitating distinct treatments.

Purpose of the Study:

• To differentiate posttraumatic finger deformities from inflammatory conditions.
• To highlight the importance of accurate clinical assessment for treatment selection.
• To review diagnostic tools and treatment modalities for these deformities.

Main Methods:

• Clinical assessment including Elson and intrinsic-plus tests.
• Plain radiography for diagnostic support.
• Review of nonsurgical and surgical treatment options.

Main Results:

• Accurate diagnosis is essential for appropriate treatment planning.
• Physical examination and radiography are key diagnostic tools.
• Various treatments aim to restore joint motion and rebalance forces.

Conclusions:

• Understanding anatomy, presentation, and treatment is vital for managing posttraumatic deformities.
• Optimal outcomes depend on precise diagnosis and tailored treatment strategies.
• Effective management restores function to the proximal and distal interphalangeal joints.