下瞼部應(yīng)用解剖學研究和下瞼袋綜合治療對策
[Abstract]:I. purpose
The lower eyelid and its adjacent areas were systematically and anatomically studied. The location, range, shape, character and adjacent relationship of the orbital septum arcuate dilatation, orbital fat, lower eyelid constrictor and other related structures in Chinese were clarified, which provided anatomical theoretical basis for the clinical search for more reasonable lower eyelid surgery.
A retrospective summary of 1990 cases of lower eyelid blepharoplasty treated since 2000 was made. According to the different characteristics of lower eyelid blepharoplasty, a perfect classification method of lower eyelid blepharoplasty was put forward, and the relevant surgical treatment strategies were put forward.
Two. Materials and methods
(a) the basic part:
Materials: 10 head specimens (20 sides) of adult cadavers, including 3 males and 7 females, ranged from 56 to 72 years old.
Methods: Sagittal sectioning was performed on one side, surface and inner layers were dissected on 19 sides to observe the position, range, shape, character and relationship among the anatomical structures of the lower eyelid and its adjacent areas, and vernier calipers were used to measure them, and written and image records were made.
(two) clinical part:
Clinical data: 1990 cases of lower eyelid blepharoplasty: 1923 cases of female, 67 cases of male, age range 17 - 71 years old.
Methods: The characteristics of lower eyelid blepharoplasty in different patients were recorded and treated with different surgical methods. 391 of them were followed up for an average of 12.05 months.
Three. Results
(a) the basic part:
1. The arcuate margin of the orbital septum runs from the inner canthus to the outer canthus not along the apex of the orbital margin, but from the inner orbital wall to the outer orbital wall.
2. The arcuate dilatation is the orbital septum appendage, originating from the orbital septum, obliquely travels to the deep part of the inner canthus. During the course of traveling, there is a fiber connection with the orbital septum.
3. Incision of the arcuate margin lifts up the orbital septum, orbital fat is divided into two lobes, the two lobes of fat mass through the lower oblique flail finger O orbital fat and deep retrobulbar fat also exist between the separation, orbital fat and deep retrobulbar fat properties are different.
In addition, an inverted triangle of vegetative fat originated from the upper eyelid orbital septum and fell into the lower eyelid orbital septum from the underlying space of the shallow outer orbital ligament on the deep side of the orbital septum.
4. The inferior eyelid retractor fuses with the orbital septum at 2.5-3.4 mm below the lower tarsal plate to form a membrane-like structure and attaches to the inferior edge of the lower tarsal plate.
(two) clinical part:
1. The prominence of lower eyelid orbital fat can be summarized as follows: 1. Protrusion of medial orbital septum fat and medial lobe of lateral orbital septum fat; 2. Protrusion of medial orbital septum fat and lateral orbital septum fat; 3. Protrusion of medial orbital septum fat, medial lobe of lateral orbital fat and epiphytic fat; 4. The medial orbital septum fat, lateral orbital septum fat, lateral fat and / or retrobulbar fat protruding.
2, according to the characteristics of lower eyelid baggy deformity, it can be divided into four types and five subtypes:
Type I: Simple skin relaxation, accompanied by orbital muscle hypertrophy. Type II: Simple orbital fat protrusion, can have slight skin relaxation. According to the characteristics of orbital fat protrusion can be divided into two types: type II-1: medial orbital fat and lateral orbital fat medial lobe protrusion, type II-2: medial orbital fat and lateral orbital fat are protrusion; type III is relaxation. Type I orbital fat herniation, orbital fat herniation with lower eyelid skin, orbicularis oculi muscle, orbital septum relaxation; Type IV orbital fat herniation with lower eyelid supporting structure relaxation.
3. According to the different characteristics of lower eyelid blepharoplasty in 1990 patients, corresponding to the indications and contraindications of each surgical method, the lower eyelid blepharoplasty with simple eyelid margin skin excision, the lower eyelid blepharoplasty with skin flap, the lower eyelid blepharoplasty with minimally invasive conjunctival approach, the lower eyelid blepharoplasty with simple eyelid margin skin excision, the lower eyelid blepharoplasty with minimally invasive conjunctival approach _Musculocutaneous flap lower eyelid blepharoplasty; _Musculocutaneous flap combined with orbicularis oculi muscle suspension lower eyelid blepharoplasty; _Musculocutaneous flap combined with lower eyelid wedge resection lower eyelid blepharoplasty. 391 patients were followed up for an average of 12.05 months, some patients (58 cases) had different degrees of poor appearance, but no lower eyelid ectropion and so severe. Severe complications occurred.
Four. Conclusion
1. According to the origin and envelope characteristics of orbital fat, lower eyelid intraorbital fat should be divided into medial orbital fat, lateral orbital fat and lateral vegetative fat, of which lateral orbital fat is divided into medial and lateral lobes according to the arcuate expansion part.
2. From the anatomical point of view, the best conjunctival approach should be located within 2.5mm of the lower tarsal plate, and anterior orbital septum approach.
3. The deformity of the lower eyelid bag can be divided into four types and five subtypes: type I is simple skin relaxation, which may be accompanied by orbital muscle hypertrophy; type II is simple orbital fat protrusion, which may be accompanied by slight skin relaxation: type II: medial orbital fat and medial lobe of lateral orbital fat protrusion, type II: medial orbital fat and lateral orbital fat are exophytic; Type I was a relaxed orbital fat hernia with lower eyelid skin, orbicularis oculi muscle and orbital septum relaxation, type IV was a relaxed orbital fat hernia with lower eyelid supporting structure.
4. According to the specific characteristics of lower eyelid blepharoplasty, we applied: (1) simple eyelid margin skin resection lower eyelid blepharoplasty; (2) flap method lower eyelid blepharoplasty; (3) minimally invasive conjunctival approach lower eyelid blepharoplasty; (4) minimally invasive conjunctival approach combined with simple eyelid margin skin resection lower eyelid blepharoplasty; (6) musculocutaneous flap combined with eyelid ring surgery; A total of 7 different surgical methods were used to treat the lower eyelid blepharoplasty, which proved that these methods could solve the corresponding characteristics of lower eyelid blepharoplasty, but on the other hand, these methods also have inherent shortcomings. In order to obtain a good result, the lower eyelid blepharoplasty was performed by examining the characteristics of lower eyelid blepharoplasty before operation.
【學位授予單位】:中國協(xié)和醫(yī)科大學
【學位級別】:博士
【學位授予年份】:2008
【分類號】:R779.6;R322
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