Microtomographic morphometry of the stapedius muscle and its tendon
Microtomographic morphometry of the stapedius muscle and its tendon
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DOI：
10.1007/s12565-019-00490-6
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发表时间：
2020-01-01
影响因子：
1.2
通讯作者：
Niemczyk, Kazimierz
中科院分区：
文献类型：
--
作者：
Wojciechowski, Tomasz;Skadorwa, Tymon;Niemczyk, Kazimierz
本研究的目的是利用microCT评价镫骨肌及其肌腱的形态，并描述其与面神经和砧镫关节的解剖关系。对16例新鲜尸体颞骨进行显微CT扫描。在每组图像中识别镫骨肌及其肌腱。在改良轴位平面上测量镫骨肌腱内、外侧缘的长度（STL-内侧、STL-外侧）、镫骨肌腱止点处宽度（STW-s）、镫骨肌腱出锥体隆起处宽度（STW-p）、镫骨肌腱出锥体隆起处宽度（STW-m）、镫骨肌肌腹的长度和宽度（BSML、BSMW）。在Poschl平面上测量面神经管与砧镫关节的最短距离（FN-isj）和面神经管与镫骨肌腱的最短距离（FN-st）。所有测量距离的平均值为：STL-lat 1.29 +/- 0.50 mm，STL-med 1.27 +/- 0.44 mm，BSML 2.98 +/- 0.51 mm，STW-s 0.47 +/- 0.10 mm，STW-p 0.46 +/- 0.12 mm，STW-m 0.35 +/- 0.12 mm，BSMW 1.26 +/- 0.29 mm，FN-isj 1.72 +/- 0.33 mm，FN-st 1.35 +/- 0.30 mm。镫骨肌复合体由肌腱和腹部组成，microCT扫描中它们之间的边界并不总是明显的。面神经与砧镫关节之间的距离大于面神经与镫骨肌腱之间的距离。
The aim of this study was to evaluate the morphology of the stapedius muscle and its tendon with the use of microCT and to describe their anatomic relationship with facial nerve and incudostapedial joint. The study was performed on 16 fresh cadaveric temporal bones scanned in microtomography (microCT). Stapedius muscle and its tendon were identified in each set of images. The length of the medial and lateral border of the stapedius tendon (STL-med, STL-lat), width at the insertion to stapes (STW-s), at the point it emerges from the pyramidal eminence (STW-p) and in the half way from the pyramidal eminence to stapes (STW-m), and the length and the width of the belly of stapedius muscle (BSML and BSMW) were measured in modified axial plane. The shortest distance between the facial canal and incudostapedial joint (FN-isj), and between the facial canal and stapedius tendon (FN-st) were measured in the Poschl plane. The average values of all distances measured were: STL-lat 1.29 +/- 0.50 mm, STL-med 1.27 +/- 0.44 mm, BSML 2.98 +/- 0.51 mm, STW-s 0.47 +/- 0.10 mm, STW-p 0.46 +/- 0.12 mm, STW-m 0.35 +/- 0.12 mm, BSMW 1.26 +/- 0.29 mm, FN-isj 1.72 +/- 0.33 mm, FN-st 1.35 +/- 0.30 mm. The stapedius muscle complex consists of the tendon and the belly, and the border between them in microCT scans is not always evident. The distance between the facial nerve and the incudostapedial joint is greater than the distance between the facial nerve and the stapedius muscle tendon.