Aim To compare testis volume and ultrasound texture post unilateral orchiopexy with the other side.
Methods Clinical re-examination and ultrasound measurement of testicle volume and echostructure were performed in 99 children after unilateral orchiopexy, performed between 2003 and 2007.
Results Intraoperatively, 30 testis were described as hypoplastic. further 5 patients displayed pathologic funicular structures.
On Follow-up clinical exam, 45 patients displayed a small or atrophic testis on the side of surgery. In 10 patients, the testis was described as bigger on the side of surgery.
On ultrasound, 65 patients had similar pictures on the side of surgery compared to the other side. In the group <2 years, volume was measured as 0.2ml±0.1ml vs 0.4ml±0.2ml contralaterally (n=10). In the age group 3 to 5 years volume was measured 0.4ml±0.2ml vs 0.6ml±0.3ml (n=41), in the group 6–10 years 0.4ml±0.2ml vs 0.5ml±0.3ml (n=28) and in 11 to 17 year-olds volume was 3.1±2.7ml vs 3.9±3.8ml (n=11).
Correlation of age at surgery and postsurgery volume difference between testes was r=0.6 (Pearson). In an univariate variance analysis a mild influence was found by age at surgery, inguinal hernia or re-operation.
Conclusion After orchiopexy a hypotrophic testis on the side of surgery was found in an unexpectedly high proportion. Ultrasound added valuable data (volume, texture) to the clinical follow-up examination, especially when compared to the contralateral side.
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