在有或没有明显膀下降的女性中,骨盆肌肉形状和厚度的差异
Liam Christopher Martin1, Alireza Hadizadeh2, Henry H Chill2
1Translational Biomechanics Laboratory, Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA, 15213, USA. lcm50@pitt.edu.
International urogynecology journal
|March 11, 2025
概括
盆腔器官倒退与特定的升降器和肌肉形状变化有关. 更大的膀下降与更大的骨盆区域和更薄的阻塞肌相相关,表明潜在的肌肉脱落.
科学领域:
- 泌尿和妇科 泌尿和妇科
- 盆地底疾病 盆地底疾病
- 医疗成像医学成像
背景情况:
- 骨盆器官脱落 (POP) 是一种常见的疾病,引起不适,原因不明,尽管涉及骨盆底肌肉疲弱.
- 对于导致POP的升起肌肌肉的特定结构变化仍然不太了解.
研究的目的:
- 为了确定患有较大和较小程度的膀下降的患者之间升起器和肌肉的结构差异.
- 假设这些结构变化如何与骨盆器官脱落的病理生理学有关.
主要方法:
- 利用了来自67名囊患者的MR排泄和静态轴向MRI,分为基于膀下降的组.
- 应用统计形状模型来分析和肌肉的形状.
- 进行了基于MRI的阻塞器内部厚度和前骨盆区域的测量.
主要成果:
- 一个统计形状模型揭示了骨盆地形状的显著变化,特别是在关节 (ATLA) 附近.
- 膀下降较大的患者表现出更大的前骨盆区域 (58.0 ± 5.3 厘米2 vs 53.8 ± 6.0 厘米2).
- 在患有更严重的患者中,在ATLA沿线 (13.9 ± 2.2毫米对比16.2 ± 2.7毫米) 阻塞肌肉变薄.
结论:
- 在POP中,更大的膀下降与前骨盆区域的增加和较薄的阻塞肌有关.
- 这些发现表明,在德兰西的II级支持下,肌肉脱落可能是导致POP的因素.
- 这项研究强调了与倒严重程度相关的起肌肉的特定结构变化.
相关概念视频
Urinary Bladder
306
The urinary bladder is a hollow, muscular sac that temporarily stores urine before it is expelled from the body. It can hold approximately 600 mL of urine prior to micturition. The bladder is retroperitoneal and located behind the pubic symphysis in the pelvic floor.
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...
306
Muscles of the Pelvic Floor and Perineum
938
The muscles of the pelvic floor and perineum are crucial for supporting the pelvic organs, controlling continence, and aiding in sexual function, childbirth, and core stability. They are typically divided into the superficial perineal layer and the deep pelvic floor layer.
Perineal Layer
The perineum is a diamond-shaped area below the pelvic diaphragm, divided into an anterior urogenital triangle that contains the external genitals and a posterior anal triangle housing the anus. The urogenital...
Perineal Layer
The perineum is a diamond-shaped area below the pelvic diaphragm, divided into an anterior urogenital triangle that contains the external genitals and a posterior anal triangle housing the anus. The urogenital...
938
Uterus and Cervix
782
The uterus, commonly called the womb, is a vital reproductive organ in females designed to provide a nurturing environment for the implantation and growth of an embryo. It is shaped like a hollow pear and positioned between the urinary bladder and the rectum. The uterus's structure allows it to support and protect a developing fetus throughout pregnancy.
The uterus is securely anchored within the pelvic cavity by paired broad ligaments on either side. It is further stabilized by three pairs...
The uterus is securely anchored within the pelvic cavity by paired broad ligaments on either side. It is further stabilized by three pairs...
782
Ureters
296
The ureters are retroperitoneal tubes located on either side of the vertebral column. They are responsible for transporting urine from each kidney to the urinary bladder. These tubes have thick walls and are approximately 25-30 cm long. Their diameter is around 10 mm at the renal pelvis, gradually narrowing to 1 mm as the ureter obliquely enters the posterior bladder wall through the ureteric orifices. The shape of these orifices is slit-like, which helps to prevent urine backflow toward the...
296
Muscles of the Abdomen
945
The abdominal wall encircles the abdominal cavity, providing flexible protection and shielding the internal organs from harm. It is bordered at the top by the xiphoid process and costal margins, at the back by the vertebral column, and at the bottom by the pelvic bones and inguinal ligament. The abdominal wall is divided into two regions — the anterolateral and posterior regions.
Anterolateral Region
The anterolateral region comprises five paired muscles classified into the lateral and...
Anterolateral Region
The anterolateral region comprises five paired muscles classified into the lateral and...
945
Urethra
480
The urethra is a hollowed tubular organ through which urine is expelled from the body. This structure extends from the bladder to the external opening, allowing urine to be released.
The anatomy of the urethra differs between males and females. In females, the urethra is short, measuring about 3–4 cm in length, and opens anterior to the vaginal opening. In males, the urethra is longer and passes through the penis, serving dual purposes: expelling urine and ejaculating semen. The male...
The anatomy of the urethra differs between males and females. In females, the urethra is short, measuring about 3–4 cm in length, and opens anterior to the vaginal opening. In males, the urethra is longer and passes through the penis, serving dual purposes: expelling urine and ejaculating semen. The male...
480


