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Selective posterior rhizotomy: a long-term follow-up study.

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  • 1Department of Paediatrics, University of Cape Town, South Africa.

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Summary

Selective posterior lumbar rhizotomy (SPLR) offers lasting benefits for spastic children, maintaining reduced tone and improving motor function. Early intervention yields the best results, but older children also experience significant functional gains.

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Area of Science:

  • Neurosurgery
  • Pediatric Orthopedics
  • Rehabilitation Medicine

Background:

  • Selective posterior lumbar rhizotomy (SPLR) is a surgical procedure aimed at reducing spasticity in children.
  • Long-term outcomes and functional improvements following SPLR require further detailed investigation.
  • Understanding the impact of age at intervention and adjunct therapies is crucial for optimizing patient results.

Purpose of the Study:

  • To re-examine long-term outcomes in spastic children who underwent SPLR.
  • To assess the persistence of tone reduction and motor function improvements.
  • To explore functional gains in relation to age at surgery and physiotherapy.

Main Methods:

  • Longitudinal follow-up study of 51 spastic children who had SPLR between 1981 and 1984.
  • Assessment of muscle tone, motor function, and functional gains.
  • Evaluation of physiotherapy adherence, sensory disturbances, spinal stability, and outcomes of subsequent orthopedic surgery.
  • Parental and patient questionnaires to gauge satisfaction.

Main Results:

  • Sustained reduction in muscle tone in all cases.
  • Continued motor function improvement in 42 out of 51 children.
  • Greatest functional gains observed in children operated on before age 8, with positive outcomes in older children as well.
  • Minimal sensory disturbances and no spinal instability reported.
  • Positive outcomes from post-rhizotomy orthopedic surgery for contractures.
  • High parental and patient satisfaction with the overall results.

Conclusions:

  • SPLR is a beneficial intervention for spastic children, providing lasting tone reduction and functional improvements.
  • Early surgical intervention (under age 8) is associated with the greatest functional gains.
  • Continued physiotherapy, particularly for muscle strengthening, is important for maximizing outcomes.
  • Careful patient selection is essential for successful SPLR outcomes.