Department of Urology, University of Miami Miller School of Medicine, Miami, FL, USA.
Department of Urology, Johns Hopkins University, Baltimore, MD, USA.
Int J Impot Res. 2020 Jan;32(1):113-116. doi: 10.1038/s41443-019-0129-8. Epub 2019 Mar 4.
Our purpose was to determine if key pinch strength is predictive of patient preference for a single IPP model among three currently available models (Coloplast™ Titan, Coloplast™ Titan Touch, and the Boston Scientific AMS 700™). We prospectively recruited men without penile prostheses over 65 years old from our urology clinic. Demographic and medical history were recorded. To measure key pinch strength study participants squeezed a dynamometer between their thumb and index finger while seated with their arm resting at 90°; the strongest of three attempts was recorded. Participants were asked to operate three inflatable penile prosthesis devices installed within identical penis models. The number of pumps required to achieve erection with each device was recorded. Participants were asked to rate difficulty of inflation on a 1-5 scale. Participants ranked, from best to worst, which device they preferred based on ease of inflation. A total of 100 men completed the study. Median age and key pinch strength were 70.0 years and 19.0 pounds. Coloplast Titan was the most favored pump based on ease of inflation (58%). The median age, median key pinch strength, and median number of pumps required for erection were similar among men that favored Coloplast Titan as compared with AMS 700 and Coloplast Titan Touch. Multivariate linear regression of the 1-5 rating scale revealed lower grip strength to be associated with increased difficulty of inflation of Coloplast Titan Touch (p = 0.045). No other factors were associated with increased difficulty of inflation. Men with below-average key pinch strength may benefit from being offered a model other than Coloplast Titan Touch. Whether these findings translate to men who have already received implants remains to be determined. Nevertheless, evaluation of pinch strength should be considered in men prior to implantation of IPP.
我们的目的是确定关键捏力是否可预测患者对三种现有模型（科洛普 Titan、科洛普 Titan Touch 和波士顿科学 AMS 700）中单一 IPP 模型的偏好。我们前瞻性地招募了来自泌尿科诊所的 65 岁以上无阴茎假体的男性。记录了人口统计学和病史。为了测量关键捏力，研究参与者坐在椅子上，手臂以 90°的角度休息，用拇指和食指捏测力计；记录三次尝试中最强的一次。参与者被要求操作三个安装在相同阴茎模型内的可充气阴茎假体装置。记录每个装置达到勃起所需的泵数。参与者根据充气难度在 1-5 的范围内进行评分。参与者根据充气难易程度从好到差对他们更喜欢的设备进行排名。共有 100 名男性完成了这项研究。中位年龄和关键捏力分别为 70.0 岁和 19.0 磅。根据充气的难易程度，科洛普 Titan 是最受欢迎的泵（58%）。在喜欢科洛普 Titan 的男性中，中位年龄、中位关键捏力和勃起所需的泵中位数与 AMS 700 和科洛普 Titan Touch 相似。使用 1-5 评分量表的多元线性回归显示，握力较低与科洛普 Titan Touch 充气困难增加相关（p=0.045）。没有其他因素与充气困难增加相关。握力低于平均水平的男性可能受益于提供其他型号而不是科洛普 Titan Touch。这些发现是否适用于已经接受植入物的男性还有待确定。尽管如此，在植入 IPP 之前，应该考虑评估捏力。
