(471) The Transfacial Fixation of an Ectopic Low Submuscular Reservoir: A Novel Approach to Inflatable Penile Prosthesis Reservoir Placement

Abstract

Abstract Introduction Ectopic reservoir placement has become a more routine practice among high-volume penile prosthesis implanters. In particular, the low submuscular approach has gained considerable popularity given its safe location away from structures of concern such as the iliac vein or bowel, which can frequently be in the proximity of reservoirs placed in the traditional Space of Retzius position in patients with prior pelvic procedures such as a radical prostatectomy. However, the low submuscular approach is not without its own risks, most notably, herniation of the reservoir to an unintended location. In order to maximize the benefits of submuscular reservoir placement and minimize risk for herniation, we describe a novel approach to low submuscular reservoir placement. Objective The objective of this study is to present outcomes data on inflatable penile prosthesis patients who underwent low submuscular (LSM) reservoir placement with transfascial fixation (TFF). Methods A retrospective review was conducted on patients who underwent an IPP placement using the LSM with TFF technique between June 2019 and March 2022 by a single, high-volume surgeon at a tertiary medical center. Preoperative patient characteristics were collected, and patients then conducted a telephone interview with a modified questionnaire to assess satisfaction with the IPP and reservoir concealment. Results A total of 34 patients underwent IPP surgery with low submuscular reservoir placement with TFF of which 29 completed the questionnaire (85.2%). The average age of patients was 68.3 years, and 61.5% of patients had undergone a radical prostatectomy. Overall satisfaction with the penile implant was 4.1 (out of 5). Eight patients (26%) were able to palpate the reservoir, and four patients (15.4%) were able to visualize the reservoir impression below the abdominal skin. However, overall satisfaction with reservoir concealment was 4.6 (out of 5) (Table 1). No surgical revisions were required and there were no surgical complications such as bowel obstruction, herniations, bladder erosion, or vascular injuries. Conclusions Low submuscular IPP reservoir placement with TFF is an alternative approach for reservoir placement with a high degree of patient satisfaction, decreased risk for reservoir herniation, and significant ease of placement compared to alternative methods in the literature. Disclosure Any of the authors act as a consultant, employee or shareholder of an industry for: Boston Scientific