ISSN:0740-9303    

出版商:OVID    

年代:2000

数据来源: OVID

ISSN:0740-9303    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

Purpose:To investigate the anatomic and histologic changes present in midfacial ptosis.Methods:Experimental study applying gross anatomic and histologic techniques to formalin-preserved and fresh-frozen cadaver heads with and without midfacial ptosis. High-resolution surface coil magnetic resonance imaging (MRI) was performed to obtain radiologic correlations.Results:The orbitomalar ligament was further characterized by identification of a well-developed lateral component in the sub-superficial musculoaponeurotic plane; abnormalities of this important supporting structure were present in the subcutaneous plane in 8 of 10 specimens with midfacial ptosis. The zygomatic and masseteric cutaneous ligaments also were further characterized on a gross anatomic level, and histologic evidence of these two structures was produced. The subcutaneous components of the zygomatic and masseteric cutaneous ligaments were attenuated or not identifiable in 40% and 30% of specimens with midfacial ptosis, respectively. High-resolution surface coil MRI provided exquisite correlations of midfacial anatomy.Conclusions:The lateral component of the orbitomalar ligament provides major osteocutaneous midfacial support. Subcutaneous attenuation of the orbitomalar, masseteric cutaneous, and zygomatic ligaments was associated with midfacial ptosis.

ISSN:0740-9303    

出版商:OVID    

年代:2000

数据来源: OVID

ISSN:0740-9303    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

Purpose:To determine the efficacy of a nonendoscopic brow/forehead lift.Methods:Case series of 12 patients. Small scalp and upper eyelid blepharoplasty incisions were used to elevate the brows/forehead and perform protractor myectomy.Results:All patients achieved an aesthetically pleasing eyebrow and forehead lift with reduction of vertical and horizontal glabellar creases. Complications included one patient who experienced prolonged ecchymosis after corrugator muscle resection and one patient who had asymmetric lid folds after surgery. The length of follow-up ranged from 9 to 35 months.Conclusions:The small incision nonendoscopic browlift technique provides a useful alternative to the endoscopic approach.

ISSN:0740-9303    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

Purpose:Essential blepharospasm can be associated with apraxia of eyelid opening and is characterized by the inability to initiate the act of eyelid elevation even after cessation of orbicularis spasms. Current therapies such as botulinum toxin injections, orbicularis resection, or neurectomy may be unsuccessful or have undesired side effects.Methods:Frontalis suspension was used to treat 13 consecutive patients with apraxia and blepharospasm during a 4-year interval. Follow-up ranged from 16 months to 55 months. To improve the aesthetic outcome, an upper blepharoplasty was done at the same time as the frontalis suspension in 7 cases.Results:Good or excellent functional results were obtained in 10 of 13 patients. In 6 of these patients, the spasm disappeared completely. Therapy was unsuccessful in 1 patient, and in 2 patients blepharospasm recurred after 9 months.Conclusion:Patients with blepharospasm and apraxia of eyelid opening may benefit from a frontalis suspension operation, which can be considered minimally invasive and reversible.

ISSN:0740-9303    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

Purpose:Trauma and infection sometimes produce lower lid malpositions that are difficult to repair cosmetically with standard canthoplasty techniques. A new variation is described.Methods:Surgical techniques of the tarsal strip canthoplasty and of lateral tarsorrhaphy are combined into the tarsal sandwich.Results:Representative cases with preoperative and postoperative photos are presented.Conclusion:The sandwich technique allows the surgeon more flexibility in achieving the necessary vertical lift of the lateral canthus in difficult cases of entropion, ectropion, and lagophthalmos.

ISSN:0740-9303    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

Purpose:To describe the upper eyelid island orbicularis oculi myocutaneous flap, medially or laterally based, for reconstruction of periorbital defects.Methods:During the past three years we have used the island orbicularis oculi myocutaneous flap in 62 patients with tumors of the periorbital area, with the following indications: (a) anterior lamellar defects of the medial aspect of the upper eyelid, when the peripheral arcade is intact; (b) up to 2/3 anterior lamellar lower eyelid defects; (c) inner and outer canthus defects; and (d) defects of the peripalpebral area (the lateral half of the eyebrow, bridge of the nose and suprazygomatic areas).Results:The flap proved to be flexible, safe, relatively simple, and provided good functional and aesthetic results. Complications were minimal.Conclusions:The upper eyelid island orbicularis oculi myocutaneous flap may be a useful tool for periorbital reconstruction.

ISSN:0740-9303    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

Purpose:A clinical observation showed that involutional entropion of the lower eyelid in Asians may occur more commonly than ectropion. A review of surgical cases was performed to examine this hypothesis.Methods:A retrospective review of the number of Asian lower lid involutional ectropion and entropion repairs was performed in three different clinical practice settings. These data were compared and statistically analyzed with similar data for non-Asian patients.Results:The frequency of ectropion among Asians was significantly less than in non-Asians (chi-square,p< 0.001). Asian entropion repair represented 11.4% of the 604 eyelid operations performed on Asians, whereas Asian ectropion repair made up only 1.5% of cases. Non-Asian entropion and ectropion repairs were 3.7% and 6.2%, respectively, of the 1,849 eyelid procedures performed on non-Asians.Conclusions:Because of the normal anteriorly protruding position of the orbital fat within the Asian lower eyelid, Asians may be more predisposed than whites to the development of involutional entropion rather than ectropion. Removal of lower eyelid fat should be considered in entropion repair of the Asian lower eyelid.

ISSN:0740-9303    

出版商:OVID    

年代:2000

数据来源: OVID

摘要:

Purpose:To describe a patient with unusual findings after regeneration of the oculomotor nerve.Methods:Case report.Results:A 35-year-old woman developed complete right third nerve paralysis after neurosurgical ligation of internal carotid-posterior communicating and internal carotid-ophthalmic artery aneurysms. Permanent ipsilateral lagophthalmos appeared as third nerve function spontaneously recovered.Conclusion:Lagophthalmos may rarely develop after aberrant regeneration of the oculomotor nerve, presumably caused by co-contraction of the levator and superior rectus muscles during the Bell's phenomenon.

ISSN:0740-9303    

出版商:OVID    

年代:2000

数据来源: OVID