Balawender K, Orkisz S
Morphological Sciences Department of Human Anatomy Medical Faculty University of Rzeszów.
Folia Morphol (Warsz). 2018;77(1):16-21. doi: 10.5603/FM.a2017.0058. Epub 2017 Jun 27.
The aim of our study was to determine whether various anatomic factors constitute a predisposition to a lower pole renal stones.
We analysed the computed tomography (CT) urography of 75 patients with a single lower pole stone. Measurements were taken of the infundibulopelvic angle (IPA), infundibular width (IW), infundibular length (IL) and calyceopelvic height (CPH).
The mean patient age was 50 years (range 17-79 years). The mean stone size was 11.9 mm. The mean IPA using Sampaio method in affected kidney was 113.4 ± 15.3o (range 80-139o), 59.5 ± 17.3o using Elbahnasy method. The values of IPA on the contralateral kidney were 119.86 ± 15.37o (range 79-141o; p = = 0.001) using Sampaio method of measurement and 59.78 ± 12o (range 34-90 o; p = 0.465) using the method described by Elbahnasy. We reported statistically significant differences between stone-bearing kidney and contralateral kidney in measurement IPA using only Sampaio method. The mean infundibular width was 4.22 ± 1.81 mm on the affected kidney and 3.72 ± 2.5 mm on the contralateral side (p = 0.164). The mean infundibular length was 15.37 ± 4.57 mm on the affected kidney and 14.66 ± 4.35 mm on the unaffected side (p = 0.329). The CPH was 10.19 ± 4.05 mm on the affected kidney and 10.44 ± 3.83 mm on the normal side (p = 0.688).
Pelvicalyceal morphology of the kidney is one of the factors that determine the risk of developing kidney stones. Out of the analysed morphological parameters of kidney IPA is a statistically significant risk factor to form lower pole kidney stones. Other anatomic parameters did not seem to have a significant role in predisposing to form lower pole kidney stone. (Folia Morphol 2018; 77, 1: 16-21).
我们研究的目的是确定各种解剖因素是否构成下极肾结石的易患因素。
我们分析了75例单发下极结石患者的计算机断层扫描（CT）尿路造影。测量了肾盂漏斗角（IPA）、漏斗宽度（IW）、漏斗长度（IL）和肾盂肾盏高度（CPH）。
患者平均年龄为50岁（范围17 - 79岁）。结石平均大小为11.9毫米。患侧肾脏采用桑帕约方法测量的平均IPA为113.4±15.3°（范围80 - 139°），采用埃尔巴纳西方法测量为59.5±17.3°。使用桑帕约测量方法时，对侧肾脏的IPA值为119.86±15.37°（范围79 - 141°；p = 0.001），使用埃尔巴纳西描述的方法时为59.78±12°（范围34 - 90°；p = 0.465）。仅使用桑帕约方法时，我们报告了结石侧肾脏与对侧肾脏在测量IPA方面存在统计学显著差异。患侧肾脏的平均漏斗宽度为4.22±1.81毫米，对侧为3.72±2.5毫米（p = 0.164）。患侧肾脏的平均漏斗长度为15.37±4.57毫米，未受影响侧为14.66±4.35毫米（p = 0.329）。患侧肾脏的CPH为10.19±4.05毫米，正常侧为10.44±3.83毫米（p = 0.688）。
肾脏肾盂肾盏形态是决定肾结石发生风险的因素之一。在所分析的肾脏形态学参数中，IPA是形成下极肾结石的统计学显著风险因素。其他解剖参数似乎在易患下极肾结石方面没有显著作用。（《形态学杂志》2018年；77卷，第1期：16 - 21页）
