Metacarpophalangeal joint extensor tendon subluxation: a reconstructive stabilization technique

Area of Science:

• Orthopedic Surgery
• Hand Surgery
• Reconstructive Surgery

Background:

• Extensor tendon subluxation at the metacarpophalangeal joint results from extensor retinacular system or sagittal band disruption.
• Conservative treatments for extensor tendon subluxation are often insufficient, necessitating surgical intervention.
• Various surgical techniques exist for correcting extensor tendon subluxation.

Observation:

• A novel stabilization technique is presented to centralize the extensor tendon.
• The technique utilizes the junctura tendinum to lengthen an extensor digitorum communis tendon graft.
• This approach aims for a less morbid and stable surgical repair.

Findings:

• The presented technique is simple, effective, and creates a strong repair.
• It successfully centralizes the extensor tendon without causing associated stiffness.
• The method mimics normal anatomy with minimal disruption to local soft tissues, offering biomechanical advantages.

Implications:

• This novel technique provides a potentially superior surgical option for extensor tendon subluxation.
• It demonstrates successful patient treatment with good outcomes.
• Further research may validate its biomechanical advantages over existing methods.