From the Department of Anatomy, Faculty of Medicine, and the Chula Soft Cadaver Surgical Training Center, Chulalongkorn University and King Chulalongkorn Memorial Hospital; the Department of Basic Medical Science, Faculty of Medicine Vajira Hospital, Navamindradhiraj University; the College of Health Sciences, Christian University; and the School of Life Sciences, Faculty of Health and Life Sciences, University of Liverpool.
Plast Reconstr Surg. 2018 Nov;142(5):1153-1163. doi: 10.1097/PRS.0000000000004893.
The tear trough is a significant sign of periorbital aging and has usually been corrected with filler injection. However, the arterial supply surrounding the tear trough could be inadvertently injured during injection; therefore, this study aimed to evaluate the nearest arterial locations related to the tear trough and investigate the possibility of severe complications following filler injection.
Thirty hemifaces of 15 Thai embalmed cadavers were used in this study.
The artery located closest to both the inferior margin (TT1) and mid-pupil level (TT2) of the tear trough was found to be the palpebral branch of the infraorbital artery. Furthermore, at 0.5 mm along the tear trough from the medial canthus (TT3), the angular artery was identified, which was found to be a branch of the ophthalmic artery. The artery at TT1 and TT2 was located beneath both the zygomaticus major and the orbicularis oculi muscles. The distances from TT1 to the artery were measured as follows: laterally, 2.79 ± 1.08 mm along the x axis; and inferiorly, 2.88 ± 1.57 mm along the y axis. For the TT2, the artery was located inferomedially from the landmark of 4.65 ± 1.83 mm along the x axis and 7.13 ± 3.99 mm along the y axis. However, the distance along the x axis at TT3 was located medially as 4.00 ± 2.37 mm.
The high risk of injury to the artery at the tear trough should be considered because of the numerous arteries to this area.
泪槽是眶周衰老的一个重要标志，通常通过填充物注射来矫正。然而，在注射过程中，泪槽周围的动脉供应可能会被无意中损伤；因此，本研究旨在评估与泪槽相关的最接近的动脉位置，并探讨在填充物注射后发生严重并发症的可能性。
本研究使用了 15 具泰国防腐尸体的 30 个半面。
发现位于泪槽下缘（TT1）和瞳孔中部（TT2）最近的动脉是眶下动脉的眼轮匝肌分支。此外，在距内眦 0.5 毫米处的泪槽（TT3）处，可以识别出动脉，它是眼动脉的分支。位于 TT1 和 TT2 的动脉位于颧大肌和眼轮匝肌下方。从 TT1 到动脉的距离测量如下：沿 x 轴外侧为 2.79 ± 1.08 毫米；沿 y 轴下方为 2.88 ± 1.57 毫米。对于 TT2，在 x 轴上沿 4.65 ± 1.83 毫米和 y 轴上沿 7.13 ± 3.99 毫米的标记处，动脉位于内下侧。然而，在 TT3 处，x 轴上的距离位于内侧，为 4.00 ± 2.37 毫米。
由于该区域有许多动脉，因此应该考虑到损伤泪槽处动脉的高风险。
