(158) Measurement of Recovery Rate of Penile Neuropathy After Surgical Treatment of Peyronie’s Disease Using Biothesiometry

Introduction As a surgical treatment for Peyronie's disease, penoplasty inevitably causes injury to some neurovascular structures due to incision of Buck's fascia. Biothesiometry is a device that measures the vibration perception threshold (VPT) to determine the degree of neuropathy. Objective We attempted to evaluate the rate of recovery of the neurovascular structure after surgery using biothesiometry. Methods From June 2021 to June 2023, VPT was measured using biothesiometry before surgery, 1 month after surgery, and 6 months after surgery in all patients who underwent surgical reconstruction of Peyronie's disease. We retrospectively reviewed data for patients with a minimum 6 mo of follow-up. The degree of recovery of neuropathy was analyzed before and after surgery. Results Biothesiometry data were collected from 42 patients who underwent surgical reconstruction for Peyronie's disease. The mean age was 56.8 years (range 22~73). The locations where VPT was measured were both sites of proximal and distal of the penile shaft and both sites of dorsal and ventral side of glans. One month after surgery, all sites showed a statistically significant increase in VPT compared to before surgery, resulting in insensitivity (p<0.001). However, 6 months after surgery, when compared with before surgery, all sites of the penile shafts were recovered with no statistically significant difference (p>0.05). On the other hand, in the case of glans, 6 months after surgery, it was recovered compared to 1 month, but it did not recover to the level before surgery statistically significantly (p<0.05). Conclusions Compared to preoperatively, one month after surgery, both the penile shaft and glans showed a statistically significant decrease in sensation. Six months after the operation, the sensation of the penile shaft was restored to almost the similar level as before the operation, but the sensation of the glans remained blunted. In the case of the glans, it seems to be more affected by neurovasuclar injury than the penile shaft, and the recovery time is also longer. Disclosure No