(114) A Comparative Meta-Analysis of Revision Strategies for Malfunctioning Inflatable Penile Prosthesis: Partial vs Complete Component Replacement With or Without Retained Reservoir

In cases of non-infected malfunctioning Inflatable penile prosthesis (IPP) device, surgeon often opt to exchange all the device rather than the defective component for fear of increased infection rate and future mechanical dysfunction. To assess whether partial component exchange of IPP device has comparable outcomes to complete explant and replacement of IPP device with or without retained reservoir. A meta-analysis was completed in line with PRISMA 2020 and AMSTAR guidelines. A comprehensive search was done on MEDLINE (OVID), PubMed, and Cochrane Library electronic databases from their inceptions until May 2023, identifying studies that reported on outcomes and complications of revision surgery for non-infected malfunctioning IPP device. Three groups were compared: the first group underwent a single or two-component exchange, the second group had a complete explant replacement of the entire device, and the third group had replacement of all components with a drained and retained primary reservoir. A total of 9 articles were included in the analysis. 12,152 patients had complete replacement of their device, 128 had partial exchange of their device and 151 patients had “drained and retained” reservoir following revision. The mean age was similar among the 3 groups between 62–68 years. The median follows up time ranged between 12 and 79 months. Partial component ex change had a higher rate of mechanical failure 10.3% versus 1.3% and 2.3 % (p=0.03) for complete and “drain and retain” groups respectively. (Figure 1) Similarly, partial component exchange had higher peri-operative complications at 21.2% compared to complete replacement group 9.5% and “drain and retain” group 14.5% (p=0.022). However, the infection rate was similar among the three groups, 7.7%, 2.7% and 3.3% respectively (p= 0.301). (Figure 2) Partial component exchange during IPP revision has higher rates of perioperative complication and future mechanical failure but has similar rate of infection compared to complete component replacement with or without “drain and retain” of original reservoir. No.