Hand surgery for dystrophic epidermolysis bullosa

Area of Science:

• Dermatology
• Orthopedic Surgery
• Genetics

Background:

• Epidermolysis bullosa (EB) comprises inherited skin disorders causing digital contractures and functional impairment.
• Cocoon hands, or pseudosyndactyly, are common manifestations of EB affecting hand function.
• Surgical intervention aims to release contractures and separate digits, but recurrence is frequent.

Purpose of the Study:

• To evaluate functional outcomes after surgical digit separation in epidermolysis bullosa (EB).
• To determine if functional improvement is achieved despite the common recurrence of contractures.

Main Methods:

• Retrospective evaluation of 4 patients (2 male, 2 female, average age 11 years) with EB.
• Surgical digit separation with skin grafting and a follow-up period of 1-3.5 years.
• Assessment of functional outcomes, including hand dexterity and pinch function.

Main Results:

• Partial recurrence of digital contractures was observed in all patients, more pronounced in the non-dominant hand.
• Despite recurrence, patients retained precision and oppositional pinch capabilities.
• Significant rehabilitation goals were achieved, with dexterity tests showing improvement post-surgery.

Conclusions:

• Surgical digit separation in EB provides functional benefits and is considered worthwhile by patients and families.
• While thumb separation and digit straightening are significant, separating all digits is debatable.
• The necessity for revision surgery to sustain digit function in EB patients is evident.