Spinal cord injury and bladder recovery

Area of Science:

• Neurology
• Spinal Cord Injury Research
• Urology

Background:

• Spinal cord injury (SCI) frequently results in neurogenic bladder dysfunction.
• Predicting the recovery of bladder function is crucial for patient management and rehabilitation.

Purpose of the Study:

• To determine if preserving spinothalamic tract and posterior column function predicts neurogenic bladder recovery after SCI.
• To evaluate the predictive value of initial sensory testing for bladder function at one year post-injury.

Main Methods:

• Retrospective review of 19 spinal cord injury patients (Frankel A-D, C4-T12).
• Initial assessment of perianal pinprick sensation (S4.5 dermatomes) and great toe position sense.
• Correlation of initial sensory findings with bladder function (volitional voiding) at one-year follow-up.

Main Results:

• 10/19 patients had initial perianal pinprick sensation; 7/10 achieved volitional voiding at 1 year.
• 9/19 patients lacked initial perianal pinprick sensation; none achieved volitional voiding.
• 8/19 patients had initial great toe position sense; 6/8 achieved volitional voiding.
• 11/19 patients lacked initial toe position sense; only 1/11 achieved volitional voiding.

Conclusions:

• Initial perianal pinprick sensation and great toe position sense are sensitive predictors of bladder function recovery after SCI.
• Absence of initial great toe position sense suggests likely inability to regain volitional voiding.
• Absence of initial perianal pinprick sensation definitively indicates no return of volitional voiding.