Which statement best reflects considerations when selecting lead placement for sacral neuromodulation?

• A. Always place at S5 region
• B. Place leads without testing to save time
• C. Target the S3 region for efficacy
• D. Use only one lead regardless of anatomy

Answer: (C)

Lead placement in sacral neuromodulation focuses on hitting the neural pathways that regulate pelvic organ function and confirming the effect with real-time testing. The S3 region is the best initial target because the third sacral nerve root provides a key conduit to the bladder and pelvic floor; stimulating this site tends to produce reliable improvements in symptoms such as urgency, frequency, and incontinence, with a favorable safety and response profile. Intraoperative testing helps identify which location yields the strongest, most reproducible therapeutic response for that patient, so the lead position is tailored rather than fixed. Placing a lead without testing ignores critical feedback about where stimulation will actually work for the individual and may lead to poor outcomes. Relying on only one lead regardless of anatomy can miss relevant neural pathways in some patients, reducing effectiveness. In short, targeting the S3 region and using testing to guide placement aligns the therapy with the patient’s unique neural anatomy and typically yields the best balance of efficacy and safety.