{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,7]],"date-time":"2026-07-07T14:28:20Z","timestamp":1783434500334,"version":"3.54.6"},"reference-count":21,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2018,3,22]],"date-time":"2018-03-22T00:00:00Z","timestamp":1521676800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["bjui-journals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["BJU International"],"published-print":{"date-parts":[[2018,9]]},"abstract":"\n Objective<\/jats:title>\n \n To assess the chronological changes in urinary incontinence and urethral function before and after radical prostatectomy (\n RP<\/jats:styled-content>\n ), and to compare the findings of pelvic magnetic resonance imaging (\n MRI<\/jats:styled-content>\n ) before and after\n RP<\/jats:styled-content>\n to evaluate the anatomical changes.\n <\/jats:p>\n <\/jats:sec>\n \n Patients and Methods<\/jats:title>\n \n In total, 185 patients were evaluated with regard to the position of the distal end of the membranous urethra (\n DMU<\/jats:styled-content>\n ) on a mid\u2010sagittal\n MRI<\/jats:styled-content>\n slice and urethral sphincter function using the urethral pressure profilometry. The patients also underwent an abdominal leak point pressure test before\n RP<\/jats:styled-content>\n and at 10 days and 12 months after\n RP<\/jats:styled-content>\n . The results were then compared with the chronological changes in urinary incontinence.\n <\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n The\n MRI<\/jats:styled-content>\n results showed that the\n DMU<\/jats:styled-content>\n shifted proximally to an average distance of 4 mm at 10 days after\n RP<\/jats:styled-content>\n and returned to the preoperative position at 12 months after\n RP<\/jats:styled-content>\n . Urethral sphincter function also worsened 10 days after\n RP<\/jats:styled-content>\n , with recovery after 12 months. The residual length of the urethral stump and urinary incontinence were significantly associated with the migration length of the\n DMU<\/jats:styled-content>\n at 10 days after\n RP<\/jats:styled-content>\n . The residual length of the urethral stump was a significant predictor of urinary incontinence after\n RP<\/jats:styled-content>\n .\n <\/jats:p>\n <\/jats:sec>\n \n Conclusion<\/jats:title>\n \n This is the first study to elucidate that the slight vertical repositioning of the membranous urethra after\n RP<\/jats:styled-content>\n causes chronological changes in urinary incontinence. A long urethral residual stump reduces urinary incontinence after\n RP<\/jats:styled-content>\n .\n <\/jats:p>\n <\/jats:sec>","DOI":"10.1111\/bju.14181","type":"journal-article","created":{"date-parts":[[2018,2,28]],"date-time":"2018-02-28T09:06:41Z","timestamp":1519808801000},"page":"456-462","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":28,"title":["Investigating the mechanism underlying urinary continence recovery after radical prostatectomy: effectiveness of a longer urethral stump to prevent urinary incontinence"],"prefix":"10.1111","volume":"122","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5780-4032","authenticated-orcid":false,"given":"Yoshifumi","family":"Kadono","sequence":"first","affiliation":[{"name":"Department of Integrative Cancer Therapy and Urology Kanazawa University Graduate School of Medical Science Kanazawa 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