Decision-Making for Treatment of Disabling Spasticity in Children

Selective Neurectomy for the Spastic Upper Extremity

Surgery is one element of the rehabilitative care of the spastic upper limb. Different surgical techniques have been advocated to address each of the common deformities and underlying causes, including muscle spasticity, joint contracture, and paralysis. Partial neurectomy of motor nerves has been shown to reduce spasticity in the target muscles. It is effective only for the spastic component of the deformity, which underscores the importance of a preliminary thorough clinical examination. Hyperselective neurectomy, which involves performing a partial division of each motor ramus at its entry point into the target muscle, results in improved selectivity, reliable partial muscle denervation, and durable results.

Selective peripheral neurotomy (SPN) for spasticity in childhood

OVERVIEW

Excess spasticity leads to disability that is marked by impaired locomotion, handicapping deformities and, if not controlled, discomfort and pain. Selective peripheral neurotomy in the child is indicated for severe focal spasticity, when botulinum toxin injections cannot delay surgery any longer.

MATERIALS AND METHODS

Preoperative motor blocks mimicking the outcome of the surgical procedure are essential to establish the objectives of neurotomy. In the lower limb, obturator neurotomy is indicated for spasticity in the adductor muscles, hamstring neurotomy for the knee flexion and tibial neurotomy for the spastic foot. Anterior tibial neurotomy is indicated for the extensor hallucis spasticity and femoral neurotomy for spasticity in the quadriceps. In the upper limb, neurotomy of the pectoralis major and teres major nerves is indicated for spasticity of the internal rotators of the shoulder. Neurotomy of the musculocutaneous nerve is indicated for spasticity of the flexors of the elbow, and neurotomy of median and ulnar nerves are indicated for spasticity of the pronators and flexors of the wrist and fingers.

CONCLUSION

Selective peripheral neurotomy is a valuable neurosurgical procedure in well-trained surgical hands for severe focalised spasticity.