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Manufacturers’ data show increasing implanted cylinder sizes and measured corporal lengths in inflatable penile implants

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Abstract

Introduction

We sought to determine whether measured corporal length (MCL) or implanted device size (IDS) has changed.

Methods

Data were obtained from the two major penile implant companies from the years of 2005–2010 and analyzed. While we requested similar data, companies supplied information at their discretion with MCL provided by American Medical Systems and IDS provided by Coloplast. Intra-patient corporal discrepancies, disease state effects, rear tip extenders (RTEs) use and place of implantation were also provided in some part by companies.

Results

MCL and IDS increased during the study period. Despite the general trend of MCL/IDS, clinically significant (0.5 cm or greater) decreases in MCLs were noted in patients with Peyronie’s disease (PD) or a history of radical pelvic surgery (excludes prostatectomy). In only 2.7 % of cases was there an intra-patient discrepancy in cylinder size (>1 cm). IDS was longer in the USA (US, 19.4 cm) compared to outside the US (OUS, 17.7 cm, p < 0.0001). Cylinders were implanted without RTEs in 48.3 % of US cases and 73.7 % of OUS cases (p < 0.0001). In Coloplast devices there was an overall statistically significant change in the use of 16 cm (less utilized) and 20 and 22 cm (more utilized) cylinder lengths during the study period in US implants.

Conclusion

MCL and IDS increased during the study period. Men with a history of PD or radical pelvic surgery are at highest risk to have shorter MCL and to possibly receive shorter implants. Intra-patient IDS inconsistency is rare and should prompt investigation.

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Authors’ contributions

1. Welliver involved in protocol/project development, data collection and management, data analysis, manuscript writing/editing; 2. Kottwitz involved in protocol/project development, data collection and management, manuscript writing/editing; 3. Ahmad involved in data analysis, manuscript writing/editing; 4. Wilson involved in protocol/project development, data analysis, manuscript writing/editing; and 5. Kohler involved in protocol/project development, data collection and management, data analysis, manuscript writing/editing.

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Authors and Affiliations

  1. Division of Urology, Albany Medical College, 23 Hackett Boulevard, Albany, NY, 12208, USA

    Charles Welliver

  2. Division of Urology, Albany Stratton Veterans Affairs Hospital, Albany, NY, USA

    Charles Welliver

  3. Urological Institute of Northeastern New York, Albany, NY, USA

    Charles Welliver

  4. Division of Urology, Southern Illinois University School of Medicine, Springfield, IL, USA

    Michael Kottwitz & Tobias S. Köhler

  5. Division of Urology, University of Toronto, Toronto, ON, Canada

    Ardalan E. Ahmad

  6. Institute for Urologic Excellence, Indio, CA, USA

    Steven K. Wilson

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  1. Charles Welliver
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  2. Michael Kottwitz
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  3. Ardalan E. Ahmad
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  4. Steven K. Wilson
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  5. Tobias S. Köhler
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Corresponding author

Correspondence to Charles Welliver.

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Conflict of interest

1. Welliver: Honoraria: American Society of Andrology; Meeting Participant: Coloplast, AMS; Investigator: Antares, NexMed, Auxilium, Sophiris, PROCEPT BioRobotics; Employee (brother): Bristol-Meyers. 2. Kottwitz: none. 3. Ahmad: none. 4. Wilson: Surgical Proctor: NeoTract, Coloplast, AMS; Consultant: Coloplast, AMS, Abreon, Sontec. 5. Kohler: Meeting Participant/Lecturer: Auxilium; Surgical proctor/Consultant/Meeting participant/Lecturer/research and grant funding: Coloplast, AMS; Grant and research funding: Abbvie; Research funding: Hollister.

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Welliver, C., Kottwitz, M., Ahmad, A.E. et al. Manufacturers’ data show increasing implanted cylinder sizes and measured corporal lengths in inflatable penile implants. World J Urol 34, 993–998 (2016). https://doi.org/10.1007/s00345-015-1705-2

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  • DOI: https://doi.org/10.1007/s00345-015-1705-2

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