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• W2118094311 abstract "No AccessJournal of UrologyAdult Urology1 Oct 2012Novel Insight into the Dynamics of Male Pelvic Floor Contractions Through Transperineal Ultrasound Imagingis corrected byErratum Ryan E. Stafford, James A. Ashton-Miller, Christos E. Constantinou, and Paul W. Hodges Ryan E. StaffordRyan E. Stafford Centre for Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, the University of Queensland, Brisbane, Australia More articles by this author , James A. Ashton-MillerJames A. Ashton-Miller Departments of Mechanical and Biomedical Engineering, and Institute of Gerontology, University of Michigan, Ann Arbor, Michigan Financial interest and/or other relationship with Procter & Gamble and Kimberly-Clark. More articles by this author , Christos E. ConstantinouChristos E. Constantinou Palo Alto Veterans Administration Medical Center and Department of Urology, Stanford University School of Medicine, Stanford, California More articles by this author , and Paul W. HodgesPaul W. Hodges Centre for Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, the University of Queensland, Brisbane, Australia More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2012.06.028AboutFull TextPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract Purpose: Transperineal ultrasound imaging enables the minimally invasive assessment of pelvic floor muscle function. Although commonly used in women, the approach has rarely been reported in men. This approach has advantages because the midsagittal view visualizes a bony landmark and the entire urethral length. This allows investigation of the displacement of multiple points along the urethra and the unique mechanical actions of multiple muscles that could influence continence. We used a new transperineal ultrasound technique to compare the relative displacement of urethrovesical junction, anorectal junction and distal urethra during voluntary pelvic floor muscle contractions in continent men. Materials and Methods: We performed measurement and comparison of urethral displacement at specific urethral regions in 10 continent men (age range 28 to 41 years). Measures made on 2-dimensional midsagittal plane ultrasound images included the displacements of specific points along the urethra. Anatomical considerations suggest that these are caused by contraction of the levator ani, striated urethral sphincter and bulbocavernosus muscles. Pearson's correlation coefficient was used to investigate the relationship between displacements of pairs of points. Results: Data show individual variation in displacement of the distal urethra (striated urethral sphincter contraction) and urethrovesical junction (levator ani contraction). A strong inverse linear relationship (0.723) between displacements of these points indicates 2 alternative strategies of urethral movement. Conclusions: Transperineal ultrasound imaging allows the simultaneous investigation of multiple pelvic floor muscles by measuring urethral displacement. The data provide evidence of different but coordinated strategies of urethral displacement in men. References 1 : The structure of the female lower urinary tract and pelvic floor. Urol Clin North Am1985; 12: 207. Google Scholar 2 : Effects of estrogen on urethral function in women with urinary incontinence. Am J Obstet Gynecol1989; 160: 176. Google Scholar 3 : Role of striated sphincter muscle in urethral closure under stress conditions: an experimental study. Urol Int1987; 42: 195. 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Google Scholar © 2012 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetailsCited bySteers W (2012) This Month in Adult UrologyJournal of Urology, VOL. 188, NO. 4, (1061-1062), Online publication date: 1-Oct-2012.Related articlesJournal of Urology21 Sep 2012Erratum Volume 188Issue 4October 2012Page: 1224-1230 Advertisement Copyright & Permissions© 2012 by American Urological Association Education and Research, Inc.Keywordsultrasonographystriatedmaleurinary incontinencemuscleperineumMetricsAuthor Information Ryan E. Stafford Centre for Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, the University of Queensland, Brisbane, Australia More articles by this author James A. Ashton-Miller Departments of Mechanical and Biomedical Engineering, and Institute of Gerontology, University of Michigan, Ann Arbor, Michigan Financial interest and/or other relationship with Procter & Gamble and Kimberly-Clark. More articles by this author Christos E. Constantinou Palo Alto Veterans Administration Medical Center and Department of Urology, Stanford University School of Medicine, Stanford, California More articles by this author Paul W. Hodges Centre for Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, the University of Queensland, Brisbane, Australia More articles by this author Expand All Advertisement PDF downloadLoading ..." @default.
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