Nikolavsky Dmitriy
Department of Urology, SUNY Upstate Medical University, 750 E. Adams Street, Syracuse, NY 13210, USA.
Case Rep Urol. 2015;2015:490518. doi: 10.1155/2015/490518. Epub 2015 Jul 16.
In patients with devastated bulbous urethra, that is, bulbar necrosis, failed fasciocutaneous repairs and "watering can perineum" repair options are limited by paucity of reliable local tissue suitable for reconstruction. In this case report we demonstrate a novel variation of a two-stage technique for reconstruction of a devastated bulbous urethra in a 57-year-old male who suffered penetrating trauma to his previously reconstructed urethra. Because of extensive loss of local tissue from the prior reconstruction and subsequent trauma and infection a 2-stage technique with use of gracilis was employed. This technique involved creation of two independently vascularized urethral hemi-plates prelaminated with buccal mucosa graft (BMG). In the first stage the dorsal plate was created by quilting buccal graft onto corpora cavernosa to create a temporary augmented perineal urethrostomy. In the same stage the future ventral neourethral plate was created by grafting another BMG onto the exposed distal gracilis muscle. Eight weeks later the two prelaminated plates were anastomosed by tunneling the gracilis-BMG composite into the perineum. At 8-month follow-up patient has normal voiding and continence. To our knowledge this is the first report of reconstructing an entire segment of devastated urethra in such a manner.
对于球部尿道严重受损的患者,即球部坏死,筋膜皮瓣修复失败以及“会阴浇灌样畸形”的修复选择受到适合重建的可靠局部组织匮乏的限制。在本病例报告中,我们展示了一种两阶段技术的新变体,用于重建一名57岁男性的严重受损球部尿道,该男性先前重建的尿道遭受了穿透性创伤。由于先前重建、后续创伤和感染导致局部组织大量缺失,采用了使用股薄肌的两阶段技术。该技术包括创建两个独立血管化的尿道半板,预先用颊黏膜移植物(BMG)进行预层压。在第一阶段,通过将颊黏膜移植物缝在海绵体上创建背侧板,以创建临时增强的会阴尿道造口术。在同一阶段,通过将另一个BMG移植到暴露的远端股薄肌上创建未来的腹侧新尿道板。八周后,通过将股薄肌 - BMG复合物隧道化到会阴中,将两个预层压板进行吻合。在8个月的随访中患者排尿和控尿正常。据我们所知,这是以这种方式重建整个受损尿道段(的病例)的首次报告。