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J Urol. 1992 Jun;147(6):1545-50.

Semen quality and endocrine parameters after acute testicular torsion.

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Scott Department of Urology, Baylor College of Medicine, Houston, Texas.


Of 16 postpubertal patients evaluated following testicular torsion 9 were treated with detorsion and bilateral orchiopexy (detorsion group), and 7 were treated with ipsilateral orchiectomy and contralateral orchiopexy (orchiectomy group). Each patient was evaluated with regard to semen quality, endocrine parameters (follicle-stimulating hormone, luteinizing hormone and testosterone) and the presence or absence of semen antisperm antibodies. These data were compared to similar data from a group of proved fertile semen donors. The semen quality in the detorsion group did not differ significantly from that of controls (p = 0.25) but follicle-stimulating hormone was significantly elevated compared with that of controls before and after stimulation with gonadotropin-releasing hormone. The orchiectomy group, which had been subjected to prolonged torsion (mean 69 hours), demonstrated a significant decrease in semen quality compared with semen quality in controls (p = 0.001), with average sperm density of only 29.0 million per ml. Baseline and post-stimulation levels of follicle-stimulating hormone in the orchiectomy group were also significantly abnormal when compared with those in controls and in the detorsion group. Our study demonstrates that testicular damage (changes in semen quality and/or endocrine parameters) occurs in the ipsilateral and contralateral testis following torsion, regardless of treatment modality. However, with early intervention by detorsion and testicular salvage, subsequent semen quality is likely to remain within normal limits. Late surgical intervention, even with removal of the nonviable testes, may result in significant impairment of semen quality.

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