Haddock Nicholas T, Saadeh Pierre B, Boutros Sean, Thorne Charles H
New York, N.Y.; and Houston, Texas From the Institute of Reconstructive Plastic Surgery, New York University School of Medicine, and Houston Plastic and Craniofacial Surgery.
Plast Reconstr Surg. 2009 Apr;123(4):1332-1340. doi: 10.1097/PRS.0b013e31819f2b36.
The tear trough and the lid/cheek junction become more visible with age. These landmarks are adjacent, forming in some patients a continuous indentation or groove below the infraorbital rim. Numerous, often conflicting procedures have been described to improve the appearance of the region. The purpose of this study was to evaluate the anatomy underlying the tear trough and the lid/cheek junction and to evaluate the procedures designed to correct them.
Twelve fresh cadaver lower lid and midface dissections were performed (six heads). The orbital regions were dissected in layers, and medical photography was performed.
In the subcutaneous plane, the tear trough and lid/cheek junction overlie the junction of the palpebral and orbital portions of the orbicularis oculi muscle and the cephalic border of the malar fat pad. In the submuscular plane, these landmarks differ. Along the tear trough, the orbicularis muscle is attached directly to the bone. Along the lid/cheek junction, the attachment is ligamentous by means of the orbicularis retaining ligament.
The tear trough and lid/cheek junction are primarily explained by superficial (subcutaneous) anatomical features. Atrophy of skin and fat is the most likely explanation for age-related visibility of these landmarks. "Descent" of this region with age is unlikely (the structures are fixed to bone). Bulging orbital fat accentuates these landmarks. Interventions must extend significantly below the infraorbital rim. Fat or synthetic filler may be best placed in the intraorbicularis plane (tear trough) and in the suborbicularis plane (lid/cheek junction).
随着年龄增长,泪沟和睑颊交界处会变得更加明显。这些标志相邻,在一些患者中,它们在眶下缘下方形成连续的凹陷或沟。为改善该区域外观,已描述了许多方法,且这些方法常常相互矛盾。本研究的目的是评估泪沟和睑颊交界处的解剖结构,并评估旨在矫正它们的手术方法。
对12具新鲜尸体的下睑和中面部进行解剖(6个头)。对眼眶区域进行分层解剖,并进行医学摄影。
在皮下平面,泪沟和睑颊交界处覆盖眼轮匝肌睑部和眶部的交界处以及颧脂肪垫的头侧边界。在肌下平面,这些标志有所不同。沿着泪沟,眼轮匝肌直接附着于骨。沿着睑颊交界处,通过眼轮匝肌保留韧带附着为韧带性。
泪沟和睑颊交界处主要由浅表(皮下)解剖特征解释。皮肤和脂肪萎缩是这些标志随年龄增长而变得明显的最可能原因。该区域随年龄增长的“下垂”不太可能(结构固定于骨)。眶脂肪膨出会使这些标志更加明显。干预措施必须显著延伸至眶下缘以下。脂肪或合成填充物最好置于眼轮匝肌内平面(泪沟)和眼轮匝肌下平面(睑颊交界处)。