• William C Olivero, Huan Wang, William C Hanigan, John P Henderson, Patrick T Tracy, Patrick W Elwood, J Richard Lister, and Lynne Lyle.
• Department of Neurosurgery, University of Illinois at Champaign-Urbana, Champaign, IL, USA. olib@uic.edu
• J Spinal Disord Tech. 2009 May 1;22(3):202-6.

Study DesignA retrospective review was performed to determine the outcomes of patients with cauda equina syndrome (CES) from a herniated lumbar disc at our institutions.ObjectiveCES from lumbar herniated discs is considered the only absolute indication for surgery. It is considered a neurosurgical emergency with the outcome related to how quickly it is diagnosed and treated. The results of recovery of bladder function are felt by many authors to be related to early diagnosis and surgical intervention. Most authors recommend a wide decompressive laminectomy when surgery is performed. We reviewed our cases to determine if they conformed to these assumptions.Summary Of Background DataAlthough many articles regarding the outcome of CES from herniated lumbar discs suggest that early surgery is superior to surgery that is delayed, others have demonstrated no correlation between time-to-surgery and chances for recovery of neurologic and bladder function.MethodsA retrospective review of all patients with lumbar herniated discs and CES from the years 1985 to 2004 was carried out. There were 31 patients, 28 of whom had bladder incontinence or retention requiring catheterization. Six patients were operated within 24 hours, 8 between 24 and 48 hours, and 17 after 48 hours (range: 60 h to 2 wk). Average follow-up was 5 years.ResultsTwenty-seven of these patients regained continence not requiring catheterization. There was no correlation between the time-to-surgery and recovery of bladder function. There was also no correlation between the time-to-surgery and recovery of motor and sensory function. The majority of patients underwent unilateral hemilaminotomy or bilateral hemilaminotomies; decompressive laminectomy was reserved for patients with underlying spinal stenosis or posteriorly herniated fragments. All of the patients were relieved of their radicular pain.ConclusionsIn our series of patients with CES and bladder incontinence or retention, over 90% regained continence. Recovery of function was not related to the time to surgical intervention. The majority of the patients were adequately treated without the need for a complete laminectomy.

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