Preoperative MRI Predictors for Post-Prostatectomy Urinary Incontinence.

Area of Science:

• Urology
• Radiology
• Oncology

Background:

• Investigating the predictive role of prostatic morphology on preoperative multiparametric magnetic resonance imaging (mpMRI) for post-prostatectomy urinary incontinence.
• Assessing the correlation between specific anatomical features identified via mpMRI and the recovery of urinary continence after robot-assisted radical prostatectomy (RARP).

Purpose of the Study:

• To determine if preoperative prostatic morphology on mpMRI can predict urinary incontinence after RARP.
• To identify specific anatomical features on mpMRI that correlate with continence recovery following prostatectomy.

Main Methods:

• Retrospective analysis of 95 patients undergoing RARP without prior incontinence or pelvic treatments.
• Preoperative mpMRI evaluation including prostatic and membranous urethral length, Lee Type classification of the prostatic apex, and assessment of median lobe presence and intravesical protrusion.
• Multivariate logistic regression analysis incorporating demographic, clinical, and pathological factors to predict urinary continence recovery (≤1 pad/day).

Main Results:

• Urinary continence improved significantly from 33.7% at baseline to 97.8% at one year post-surgery.
• Lee Type C was less frequent (18.9%) and Type D more frequent (32.2%) in the study cohort.
• A statistically significant association was found between Lee Type C and earlier urinary continence recovery upon vesical catheter removal (OR 0.17; p=0.01), but other morphological features showed no significant predictive value.

Conclusions:

• Lee Type C prostatic morphology identified on preoperative mpMRI may be associated with a higher probability of early urinary continence recovery post-RARP.
• No other significant correlations were found between the evaluated prostatic anatomical features on mpMRI and long-term urinary continence recovery.
• Further studies are warranted to validate the predictive role of specific prostatic apex morphologies in post-prostatectomy incontinence management.