INTRODUCTION AND OBJECTIVES:
One of the most common complains after malleable prothesis implantation(MPI) is thinning of the penis and decreasing girth. Some surgeons try to insert the largest diameter they can to improve patient satisfaction. We aimed to investigate if malleable rod diameter (MRD) has an impact on outcome and patient satisfaction.

METHODS:
Consecutive MPI were assessed in a high volume center over a one-year period. The same preoperative, intraoperative and postoperative protocols were used for all patients and one brand of malleable device was used only. We recorded MRD and length for all patients. All patients had data on comorbidities including glycated haemoglobin (HbA1c) and clinical Peyronie’s disease (PD). Revision cases and those who lost for follow up were excluded from the study. We also excluded patients operated on by low volume surgeons. All complications, minor(edema, ecchymosis, pain) and major(infection and erosion) were recorded. After 1-year, patients were assessed and given a Likert scale from 1-5 where 5 is most satisfied about their MPI. We stratified patients according to MRD into two groups: group A for diameter 9.5 and 11 mm and group B for 13 mm. Statistical analysis was done using Statistical test: Chi-square and statistical software: Stata Release 13.

RESULTS:
183 patients had full data and filled the questionnaire after 1 year follow up. All patients had Coloplast, Genesis penile implants. Major complications rate (infection, erosion and removal) was significantly higher in group B with less patient satisfaction. Results are summarized in Table 1.

CONCLUSIONS:
Larger diameter of malleable penile implants are associated with higher rate of complications and reoperation with less patient satisfaction.