Botulinum toxin use as an adjunctive modality in a patient with multiple flexor tendon ruptures

Area of Science:

• Neurology
• Orthopedic Surgery
• Dermatology

Background:

• Botulinum toxin A is utilized for various conditions, including hyperhidrosis and esophageal dysfunction.
• Its primary mechanism involves inhibiting acetylcholine release at the neuromuscular junction, causing localized muscle relaxation.
• While known for cosmetic applications, its therapeutic potential in muscle-related injuries is significant.

Purpose of the Study:

• To report a case where Botulinum toxin A was used to manage recurrent flexor tendon repair ruptures in a patient with a history of muscle spasms.
• To illustrate the utility of Botulinum toxin A in promoting tendon healing by reducing detrimental muscle activity.

Main Methods:

• A patient with a history of intermittent diffuse muscle spasms experienced repeated flexor tendon repair ruptures in the index finger.
• Botulinum toxin A was administered to the affected muscle to reduce its activity and prevent further tendon damage.

Main Results:

• Following Botulinum toxin A administration, the patient experienced no further flexor tendon repair ruptures.
• The patient achieved active flexion of all digits without additional surgical interventions.
• The treated muscle's reduced activity facilitated the healing of the repaired flexor tendon.

Conclusions:

• Botulinum toxin A can be a valuable therapeutic option in clinical scenarios requiring decreased muscle activity to aid tendon healing.
• This case highlights the successful application of Botulinum toxin A in managing complex hand injuries complicated by muscle spasms.
• The minimal side effect profile of Botulinum toxin A supports its consideration in cases of detrimental muscle spasm affecting tissue repair.