Sacral anterior root stimulators for bladder control in paraplegia: the first 50 cases
Open accessAbstract
The first 50 patients who have received sacral anterior root stimulator implants are presented, with follow-up of from 1 to 9 years. Forty-nine are alive and 43 are regularly using their implants for micturition. Of the 49 living, 39 are "very pleased, without significant reservations", six are pleased on balance but have reservations, and four are dissatisfied. Residual urine volumes are substantially reduced in all patients who are using their implants. Ten of the 12 female patients and the majority of male patients have become continent. The voiding pressure in implant-driven micturition can be regulated by adjusting the stimulus parameters, and is always kept below 90 cm H2O. Of seven patients with ureteric reflux before operation, four have ceased to reflux and the other three are unchanged. Changes in the radiographic appearances of the bladder have been favourable or zero, but there have been two cases of deterioration in the upper urinary tracts. Significant harmful effects have been CSF leaks, urinary infections following post-operative urodynamic study, and accidental damage to roots. Anterior roots nearly always recover from accidental damage, and posterior roots do not.
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The most frequent use of PNS interfaces is in FES, with clinical applications for controlling micturition and defecation by stimulating the sacral roots.
“Nowadays, the most frequent use of PNS interfaces resides in FES, which has clinical applications in various systems designed to control micturition and defecation by stimulating the sacral roots”
From A critical review of interfaces with the peripheral nervous system for the control of neuroprostheses and hybrid bionic systems (2005) · cites this paper as Brindley et al., 1986
The Discussion reports that most patients used sacral anterior root stimulators mainly for micturition. Methods and Results also reports that a few used S3 or S4 stimulation to aid defaecation. The paper does not establish that FES is the most frequent use of PNS interfaces overall. (LLM, conf=0.87)
Experimental — accuracy not yet measuredAfter more than 10 years of development, Brindley's group reported the first 50 cases of a radio frequency-controlled sacral anterior root stimulator implant in humans.
“After more than 10 years of development, Brindley's group reported the first 50 cases of a radio frequency-controlled implant from series production with medical approval called sacral anterior root stimulator (SARS) in humans (Brindley et al., 1986) .”
From A critical review of interfaces with the peripheral nervous system for the control of neuroprostheses and hybrid bionic systems (2005) · cites this paper as Brindley et al., 1986
The Abstract reports the first 50 human recipients of sacral anterior root stimulators; Methods and Results describes external radio transmitters, and the References include development work dating to 1972. But the printed sentence goes further: Methods and Results says the first 11 implants were made in the Neurological Prostheses Unit, not series-produced, and our copy does not establish medical approval. (LLM, conf=0.87)
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Cites
Sacral anterior root stimulators for bladder control in paraplegia
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- Authors
- Brindley, G. S., Polkey, C. E., Rushton, D. N., & Cardozo, L.
- Affiliations
- Maudsley Hospital (GB)
- Venue
- Journal of Neurology, Neurosurgery & Psychiatry
- Publisher
- BMJ
- Published
- 1986-10-01
- Volume
- 49
- Issue
- 10
- Pages
- 1104-1114
- ISSN
- 0022-3050 (ISSN-L)
- PMC
- PMC1029041
- OpenAlex
- W2026643567
- Semantic Scholar
- dbe1fc9d42d979af8398a3e04bb79f4e70b38f70
- Cited by
- 313
- References
- 15
- Citations by year
- 2026: 2 · 2025: 3 · 2024: 5 · 2023: 4 · 2022: 6 · 2021: 8 · 2020: 5 · 2019: 4 · 2018: 9 · 2017: 7 · 2016: 5 · 2015: 7 · 2014: 7 · 2013: 13 · 2012: 10
- FWCI
- 11.57
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Journal of Neurology Neurosurgery & Psychiatry (publishedVersion)
- PubMed Central (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Urology › Urinary Bladder and Prostate Research
- Health Sciences › Medicine › Pathology and Forensic Medicine › Spinal Cord Injury Research
- Health Sciences › Medicine › Rheumatology › Pelvic floor disorders treatments
- Keywords
- sacral anterior root stimulation, neurostimulation, paraplegia, bladder control, urinary incontinence, micturition, residual urine, voiding pressure, cerebrospinal fluid leak, root damage, long-term outcomes
- MeSH terms
- Adult, Autonomic Nervous System Diseases, Electrodes, Implanted, Electric Stimulation Therapy, Female, Follow-Up Studies, Humans, Erectile Dysfunction, Intraoperative Complications, Male, Middle Aged, Paraplegia, Reflex, Abnormal, Spinal Nerve Roots, Urination Disorders, Prostheses and Implants
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