Abstract Introduction While previous research has explored overall satisfaction following IPP surgery, the specific relationship between final implant length and perceived satisfaction in both patients and their partners remains underexplored. Objective We aim to evaluate the association between IPP cylinder length and postoperative satisfaction in both patients and their sexual partners, and to determine whether perceived adequacy of length restoration correlates with overall sexual and psychosocial outcomes. Methods We initiated a registry of patients undergoing surgery for placement of a PP. After consent, perioperative study assessments and follow-ups were conducted. After surgery, patients were directed to fulfill a survey at 6 months and 12 months. Patients who fulfilled both items were included in the analysis. Results A total of 237 patients had a PP placement and completed the first survey and 158 the 12-month survey. The median IPP length was 22 cm (20-23). At 6 months, .189 patients (79.7%) reported moderate to high satisfaction, and this positive response was sustained at 12-months (n=132; 83.5%). At 6 months, 178 patients (75.1%) reported moderate to high partner’ satisfaction, and this positive response was sustained at 12-months (n=129; 81.6%). A regression analysis at 6 months showed a correlation of r=0.148 (p=0.029) and r=0.027 (p=0.743) at 12 months, implying that while significant statistically, it is not strongly related, and other factors are likely contributing to the response. Partner satisfaction showed a correlation of r=0.184 (p=0.008) at 6 months and r=0.032 (p=0.702) at 12 months, again showing no causal relationship between length of the IPP device with perceived satisfaction. A secondary analysis was performed in patients who had prostatectomy and were using vacuum devices before IPP placement (n=51). Of these, 12 (5.1%) reported decreased penile size during pre-op counseling. The median IPP length was 22 cm (19.5-23) and 21 cm (19.6-22) among patients who reported a decrease in size before IPP placement (p=0.574). There was no correlation between this statement and IPP length (p=0.572), nor satisfaction levels in both patients r=0.180 (p=0.221) and partners r=0.015 (p=0.921) at 6 months or 12 months r=0.060 (p=0.701) & r=0.078 (p=0.636). Conclusions IPP length showed a significant correlation but a weak association with patient and partner satisfaction. Our findings underscore the need for a multimodal approach when looking for patient and partner satisfaction and not only to perceived cosmesis. Comprehensive preoperative counseling should address these multidimensional aspects to better align expectations and outcomes. Disclosure Yes, this is sponsored by industry/sponsor: Coloplast Clarification: Industry funding only - investigator initiated and executed study