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Long term outcome of Selective Dorsal Rhizotomy for the management of childhood spasticity—functional improvement and complications

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Abstract

Background

Selective dorsal rhizotomy (SDR) for the management of lower extremity spasticity is a surgical technique that has existed since the 1900s. While much evidence supports its efficaciousness in reducing tone in the short term, limited information exists detailing the long-term outcome and evolution over time of patients undergoing SDR.

Methods

All publications with 10 years or more of outcome data on patients undergoing SDR were identified from Medline and Embase databases using the search term “Rhizotmy.” Only publications that were in English included patients with cerebral palsy under the age of 21 and discussed SDR for lower extremity spasticity were included. Case reports, reviews without primary data, or publications not accessible online were excluded from the review.

Results

A total of 2128 publications were initially identified, of which 19 papers describing 1054 patients fit inclusion and exclusion criteria. GMFCS in most patients improved or remained stable over time after surgery, although durability of improvement and final outcome was dependent on initial functional status. Tone was noted to also substantially improve although a small proportion required additional oral or injectable pharmacologic agents and an even smaller proportion required baclofen pumps. Upper extremity function was also noted to improve substantially after SDR. A significant number of patients were independent for activities of daily living and were engaged in secondary education or gainful employment. A significant proportion of patients still required orthopedic surgery to the lower extremities after SDR, although the incidence of spinal deformity was not observed to be substantially elevated over that of natural history.

Conclusion

SDR offers substantial improvements to a number of domains beyond pure tone reduction. These changes are durable over time, although patient selection is crucial in identifying those patients that will have the most benefit. Long-term follow-up is in important in this population given the potential need for further interventions that still exist in many patients.

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Authors and Affiliations

  1. Division of Pediatric Neurosurgery, Children’s Hospital of Eastern Ontario, 401 Smyth Rd, Ottawa, ON, K1H 8L, Canada

    Albert Tu

  2. Division of Pediatric Neurosurgery, Children’s Hospital of British Columbia, Vancouver, Canada

    Paul Steinbok

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Tu, A., Steinbok, P. Long term outcome of Selective Dorsal Rhizotomy for the management of childhood spasticity—functional improvement and complications. Childs Nerv Syst 36, 1985–1994 (2020). https://doi.org/10.1007/s00381-020-04747-8

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