Surgical Anatomy of the Deep Lateral Orbital Wall

Beden, Ümit; Edizer, Mete; Elmalı, Muzaffer; Içten, N.; Güngör, İnci; Süllü, Yüksel; Erkan, Dilek

doi:10.1177/112067210701700301

Cited by 33 publications

(25 citation statements)

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“…Interestingly, surgical complications are less when approaching the lateral orbital wall (Beden et al, 2007). Some authors have converted a deep lateral wall decompression with fat debulking as the firstline surgical treatment and have reduced the risk of postoperative strabismus (Harris et al, 1998;Hitotsumatsu and Rhoton, 2000;Gonzalez et al, 2002;Graham et al, 2003).…”

Section: Discussionmentioning

confidence: 98%

“…The orbit is made up of seven bones, which provide support and protection for the eye and surrounding anatomical structures (Kelly et al, 2005). Landmarks are important for identifying the IOF during lateral wall orbital surgery as complications from such procedures as external pin fixation and orbital reconstruction have included visual disturbances, diplopia, orbital dystopia, and enophthalmos (Harris et al, 1998;Beden et al, 2007;Govsa et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

“…Serious complications may result from inferior and medial wall decompression such as diplopia (Stanley et al, 1998;Baldeschi et al, 2005;Ben Simon et al, 2006;Beden et al, 2007). The lateral orbital wall has been proposed as a potentially safe and effective site for orbital surgery, because it is located directly posterior to the globe (Goldberg et al, 1998(Goldberg et al, , 2000.…”

Section: Introductionmentioning

confidence: 99%

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A morphometric study of the inferior orbital fissure using three‐dimensional anatomical landmarks: Application to orbital surgery

2009

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The inferior orbital fissure (IOF) is an important structure during orbital surgery, however, neither its anatomical features nor the procedures necessary to expose the IOF have been examined in detail. A morphometric analysis of the IOF was performed on 232 orbits using computer software. The longest and shortest borders of the IOF were 18.2 +/- 4.9 and 1.9 +/- 1.3 mm, respectively. The outer and the inner angles were 138.9 +/- 32.7 degrees and 38.4 +/- 24.7 degrees , respectively. The perimeter of the IOF was 50.6 +/- 13.5 mm and its area was 61.3 +/- 39.1 mm(2). Eight types of IOF were observed. Type 1 IOF was observed in 42.2% and the Type 2 IOF was identified in 15.9%. A statistically significant relation was found between the longest edge and area and the widest edge and area of the IOF. The findings of our study suggest that the removal of the lateral wall should begin inferiorly, just lateral to the IOF and extended superolaterally. These data may be useful during surgical approaches to the orbit.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A morphometric study of the inferior orbital fissure using three‐dimensional anatomical landmarks: Application to orbital surgery

2009

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“…[7][8][9] The outcome of external levator resection procedure has varied in previous reports with reported success rates of 70% to 95% with the reoperation rates 8.7% to 12%. 4,[6][7][8][9][11][12][13][14][15][16][17][18] Blepharoptosis surgery is a challenging procedure in oculoplastic practice and more complicated even for some cases. There are factors influencing the surgical success, one of which is the LF.…”

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confidence: 99%

“…An anterior levator resection is the method of choice in severe ptosis with moderate or good LF which is more than 4 mm. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] A frontalis suspension surgery is the method when LF is under 4 mm. [1][2][3][4][5] Additionally, the amount of levator muscle resection can be determined by preoperative LF.…”

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confidence: 99%

The Importance of Levator Function in Determining the Levator Resection Surgery Results for Blepharoptosis Patients

Şimşek¹,

Parlakgüneş²

2018

Turkiye Klinikleri J Ophthalmol

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A AB BS ST TR RA AC CT T O Ob bj je ec ct ti iv ve e: : To compare the results of external levator resection in the upper eyelid blepharoptosis patients who have moderate and good levator function (LF). M Ma at te er ri ia al l a an nd d M Me et th ho od ds s: : This is a prospective study of 57 patients who had undergone levator resection from January 2015 to May 2016. LF was graded before surgery as moderate (5-10 mm) and good (10-15 mm) on the basis of the eyelid excursion. Preoperative and postoperative detailed information including age, gender, etiology, side, marginal reflex distance 1 (MRD1) change, operating time, cosmetic outcome and reoperations were recorded. Postoperative measurements at the 6th month visit was used for comparison. R Re es su ul lt ts s: : The patient group consisted of 24 females (42.1%), 33 males (57.9%) with a mean age of 46.33 (range:7-79) years. Of the surgical procedures 77.1% (44/57) had good LF, 22.9% (13/57) had moderate LF. The age of the patients who had good LF was statistically significantly lower than the patients who had moderate LF (p=0.020). The operation time for the patients with good LF was statistically significantly lower than the patients who had moderate LF (p=0.001). MRD1 change and reoperation rate between two groups were not statistically significant (p>0.05). For the good LF patients, the final cosmetic outcome was statistically significantly good (p=0,012). C Co on nc cl lu us si io on n: : For the blepharoptosis patients with good LF, the operation time is shorter and the final cosmetic outcome is better than the moderate LF blepharoptosis patients. As a conclusion, this study figured out the relevance of the preoperative assessment of LF in planning the surgical strategy for the treatment of blepharoptosis.K Ke ey yw wo or rd ds s: : Eyelid diseases; blepharoptosis Ö ÖZ ZE ET T A Am ma aç ç: : Orta ve iyi derecede levator fonksiyonuna (LF) sahip üst kapak blefaroptozis hastalarında eksternal levator rezeksiyon sonuçlarını karşılaştırmak. G Ge er re eç ç v ve e Y Yö ön nt te em ml le er r: : Ocak 2015-Mayıs 2016 tarihleri arasında blefaroptozis nedeni ile eksternal levator rezeksiyonu yapılan 57 hastanın değerlendirildiği prospektif bir çalışmadır. LF ameliyat öncesinde göz kapağının hareketine göre orta (5-10 mm) ve iyi (10-15 mm) olarak derecelendirildi. Yaş, cinsiyet, etyoloji, göz kapağı kenar-refleks uzaklığı 1 (KRU1) değişimi, ameliyat süresi, kozmetik sonuç ve reoperasyonların bulunduğu preoperatif ve postoperatif ayrıntılı bilgiler kaydedildi. Karşılaştırma için 6. aydaki kontrol muayenesinde elde edilen postoperatif ölçümler kullanıldı. B Bu ul lg gu ul la ar r: : Hasta grubu, yaş ortalaması 46,33 (aralık: 7-79) yıl olup, 24 kadın (%42,1), 33 erkek (%57,9) hastadan oluşmaktaydı. Cerrahi girişimlerin %77,1'inde (44/57) iyi LF, %22,9'unda (13/57) orta derecede LF vardı. İyi düzeyde LF olan hastaların yaşı, orta LF sahip olan hastalardan istatistiksel olarak anlamlı derecede düşüktü (p=0,020). İyi LF'na sahip hastaların ameliyat süresi, orta düzey...

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Normative Measurements of the Skull Base on Imaging

Horowitz

Ginat

2020

Manual of Normative Measurements in Head and Neck Imaging

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Surgical Anatomy of the Deep Lateral Orbital Wall

Abstract: The authors recommend avoiding the thin rectangular portion located in the inter-fissural area adjacent to the superior orbital fissure. A high intersubject variability underscores the need for individualized preoperative analysis by imaging studies.

Cited by 33 publications

References 11 publications

A morphometric study of the inferior orbital fissure using three‐dimensional anatomical landmarks: Application to orbital surgery

A morphometric study of the inferior orbital fissure using three‐dimensional anatomical landmarks: Application to orbital surgery

The Importance of Levator Function in Determining the Levator Resection Surgery Results for Blepharoptosis Patients

Normative Measurements of the Skull Base on Imaging

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