Dynamics of the testicle volume after scrotal and trans-inguinal orchiopexy in children aged 6–18 months

Abstract

BACKGROUND: Currently, scrotal and inguinal approaches are widely used for the treatment of low-positioned palpable forms of cryptorchidism. In the literature, available data demonstrate the comparability of the results obtained after using both techniques; however, the effectiveness reported in the literature was obtained based on rough criteria, such as the presence or absence of atrophy and malposition of the testis in the postoperative period. AIM: To study the dynamics of the testicular volume in the postoperative period after performing scrotal and trans-inguinal orchiopexy. MATERIALS AND METHODS: The study was based on the experience of treating 139 patients with palpable unilateral, low-positioned testis, aged up to 18 months, who underwent surgery within the period from 2010 to 2020. The low-positioned ones were those testicles that, during traction, could be descended beyond the superficial inguinal ring; however, the testis did not descend into the scrotum. By mechanical sampling, the patients were divided into two groups. Group I included 69 (49.6%) boys (median age, 17 [1517] months) who used scrotal access, whereas group II included 70 (50.4%) patients (median age, 15 [1417] months) with trans-inguinal access. The volume of the undescended testis was determined in both groups before surgery and after 1, 3, and 12 months. RESULTS: Patients who had testicular atrophy and malposition that developed after surgery, wound infection, and hematoma, and did not show up for at least one of the scheduled examinations were excluded from the study. After applying the exclusion criteria, 22 boys remained in group I and 29 boys in group II. The volume of a normal testicle before surgery was 2.09 cm3 [1.25; 2.58] group I and 1.69 cm3 [1.41; 2.22] in group II (p = 0.537). In group I, a significant increase was found in the testicular volume from 0.5 cm3 [0.4; 0.8] before surgery to 1.3 cm3 [0.7; 1.8] (p 0.001) a year after orchiopexy. In group II, the testicular volume increased from 0.6 cm3 [0.3; 0.8] before surgery to 0.7 cm3 [0.4; 1.0] after surgery. CONCLUSIONS:Scrotal access in the treatment of a palpable, low-positioned undescended testis in children aged 618 months provides a greater increase in the volume of the operated testicle in a year compared with trans-inguinal access 1 year after surgery. The results suggest that transcrotal access has some advantages over trans-inguinal access.