Nam Yong Seok, Park Yooyeon, Kim In-Beom, Shin Sun Young
Department of Anatomy and Institute for Applied Anatomy, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
J Ophthalmol. 2019 Jul 10;2019:5374628. doi: 10.1155/2019/5374628. eCollection 2019.
To elucidate the detailed anatomy of the lateral rectus muscle-superior rectus muscle (LR-SR) band by cadaver eye investigation.
In total, 48 eyes of 24 cadavers were observed macroscopically. The lateral rectus muscle (LRM) and superior rectus muscle (SRM) were dissected from their origins to their insertions under the dissecting microscope, and the location, width, length, and tensile strength of the LR-SR bands were measured.
The LR-SR band is the thick ligament interconnecting LRM pulleys with SRM pulleys. The LR-SR band was covered by the orbital part of the lacrimal gland superiorly, and the intermuscular septum between the LRM and SRM was shown anterior to the LR-SR band. The length of the attachment site between the LR-SR band and the SRM was less at 8.64 ± 1.52 mm (=0.040), its thickness was thinner at 0.74 ± 0.16 mm (=0.002), and its tensile strength was weaker at 7.64 ± 1.82 N (=0.028) compared to the attachment site between the LR-SR band and the LRM.
This study revealed the detailed anatomy of the LR-SR band and provided helpful information to understand heavy eye syndrome and sagging eye syndrome.
通过尸体眼部研究阐明外直肌-上直肌(LR-SR)带的详细解剖结构。
对24具尸体的48只眼睛进行宏观观察。在解剖显微镜下将外直肌(LRM)和上直肌(SRM)从起点至止点进行解剖,并测量LR-SR带的位置、宽度、长度和拉伸强度。
LR-SR带是连接LRM滑车和SRM滑车的厚韧带。LR-SR带上方被泪腺眶部覆盖,LRM和SRM之间的肌间隔位于LR-SR带前方。与LR-SR带和LRM的附着部位相比,LR-SR带与SRM附着部位的长度较短,为8.64±1.52mm(=0.040),厚度较薄,为0.74±0.16mm(=0.002),拉伸强度较弱,为7.64±1.82N(=0.028)。
本研究揭示了LR-SR带的详细解剖结构,并为理解重度眼综合征和下垂眼综合征提供了有用信息。