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Updated: Jun 27, 2026

Percutaneous Endoscopic Unilateral-Approach Bilateral Decompression for Lumbar Spinal Stenosis
Published on: February 9, 2024
Long-term outcomes of external sphincterotomy in a spinal injured population
David Pan1, Andrew Troy, John Rogerson
1Department of Urology, Austin Health, Victoria, Australia. dpan1111@yahoo.com.au
Purpose:
External sphincterotomy is an accepted option for treating patients with detrusor-sphincter dyssynergia. However, long-term outcome data are limited. We ascertained the outcome of treatment results for this procedure.
Materials And Methods:
A database was reviewed for patients undergoing external sphincterotomy at a large tertiary referral spinal injuries center.
Results:
For 84 primary sphincterotomies the mean duration of successful outcome was 81 months. A second procedure was required in 30 patients and mean duration of success thereafter was 80 months. Recurrent symptomatic episodes of urinary tract infection, recurrent detrusor-sphincter dyssynergia or upper tract dilatation eventually ensued in 57 of 84 patients (68%). Renal failure did not develop in any patients.
Conclusions:
External sphincterotomy protects the upper renal tracts and provides extended periods of satisfactory bladder emptying. However, it may require ongoing revision and should potentially be regarded as a staged intervention.
