scholarly journals Ectopic Endometriosis Seeded to the Rectus Muscle

Cureus ◽  
2019 ◽  
Author(s):  
Gabriel O Ologun ◽  
Cara Hannigan ◽  
Edmund Kwarteng ◽  
Aaron Bambil ◽  
David Bertsch
Keyword(s):  
Rectus Muscle ◽  
Ectopic Endometriosis

Outer Table Frontal Bone Fracture: When Need Surgical Intervention?

2018 ◽  
Vol 2 (3) ◽  
pp. 167
Author(s):  
Adam Mohamad ◽  
Irfan Mohamad ◽  
Khairulzaman Adnan ◽  
Syed Yusoff Alzawawi Syed Abdul Fattah
Keyword(s):  
Bone Fracture ◽  
Open Reduction ◽  
Surgical Intervention ◽  
Rectus Muscle ◽  
Frontal Bone ◽  
Facial Bone ◽  
Orbital Roof ◽  
Orbital Wall ◽  
Outer Table ◽  
Superior Rectus Muscle

Frontal bone fracture is a common facial bone fracture which commonly involved the outer table part. Most of the time outer table fracture is treated conservatively. However, when there is involvement of orbital wall fracture, as well as entrapment of extraocular muscle, surgical intervention via open reduction and internal fixation is needed. We described a case of outer table frontal bone fracture with left orbital roof fracture complicated with superior rectus muscle entrapment which was successfully treated via open reduction and internal fixation.International Journal of Human and Health Sciences Vol. 02 No. 03 July’18. Page : 167-169

RESULTS OF POLARIZED LIGHT USE FOR STUDY OF STRESS-STRAIN STATE OF CORNEA IN PATHOLOGY OF EXTRAOCULAR MUSCLES

2020 ◽  
pp. 65-69
Author(s):  
Nataliia Mykhailivna Kovtun ◽  
Ihor Volodymyrovych Kaplin
Keyword(s):  
Interference Pattern ◽  
Optical Anisotropy ◽  
Extraocular Muscle ◽  
Strain State ◽  
Polarized Light ◽  
Attachment Site ◽  
Rectus Muscle ◽  
Extraocular Muscles ◽  
Asymmetric Distortion ◽  
Interference Picture

The parameters of interference patterns observed on the cornea in a polarized light in pathology of extraocular muscles were quantitatively evaluated. A study of the shape of 147 interference patterns observed on the cornea in a polarized light showed that the horizontal deviation of an eye in 56 % of cases was caused by the displacement of the attachment of the upper rectus muscle towards the inner rectus muscle. During illumination of the cornea of a live eye with polarized light, a specific interference pattern in the form of a rhombus formed by rainbow stripes (isochromes) is observed. It is established that such an interference pattern is the result of the influence of extraocular muscles on the cornea. The findings showed that the weakening of the force of one of muscles leads to asymmetric distortion of the shape of the interference rhombus, which is manifested with a reduced length of the corresponding section of the diagonal. On the contrary, as the force of the muscle increases, the corresponding section of the diagonal enhances. The displacement of the attachment site of direct extraocular muscle along the line of action is equivalent to a change in effort on its part, indicated appropriately by the shape of the interference rhombus. As the muscle moves away from the line of action, the angle of the interference rhombus is shifted away from the corresponding meridian. Key words: polarized light, optical anisotropy, cornea, extra−ocular muscles, interference picture.

scholarly journals Lateral rectus muscle differentiation potential in paralytic esotropia patients

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Qing Xia ◽  
Xiangtian Ling ◽  
Zhonghao Wang ◽  
Tao Shen ◽  
Minghao Chen ◽  
...  
Keyword(s):  
Gene Expression ◽  
Expression Profiles ◽  
Gene Expression Profiles ◽  
Rectus Muscle ◽  
Lateral Rectus ◽  
Control Group ◽  
Differentiation Potential ◽  
Partial Restoration ◽  
Reverse Transcription Pcr ◽  
Lateral Rectus Muscle

Abstract Purpose and background Recently, we found that maximal medial rectus recession and lateral rectus resection in patients with complete lateral rectus paralysis resulted in a partial restoration of abduction. In an attempt to understand some of the mechanisms involved with this effect we examined gene expression profiles of lateral recti from these patients, with our focus being directed to genes related to myogenesis. Materials and methods Lateral recti resected from patients with complete lateral rectus paralysis and those from concomitant esotropia (controls) were collected. Differences in gene expression profiles between these two groups were examined using microarray analysis and quantitative Reverse-transcription PCR (qRT-PCR). Results A total of 3056 differentially expressed genes (DEGs) were identified between these two groups. Within the paralytic esotropia group, 2081 genes were up-regulated and 975 down-regulated. The results of RT-PCR revealed that PAX7, MYOG, PITX1, SIX1 and SIX4 showed higher levels of expression, while that of MYOD a lower level of expression within the paralytic esotropia group as compared with that in the control group (p < 0.05). Conclusion The decreased expression of MYOD in the paralytic esotropia group suggested that extraocular muscle satellite cell (EOMSCs) differentiation processes were inhibited. Whereas the high expression levels of PAX7, SIX1/4 and MYOG, suggested that the EOMSCs were showing an effective potential for differentiation. The stimulation resulting from muscle surgery may induce EOMSCs to differentiate and thus restore abduction function.

scholarly journals Hohe Myopie und Innenschielen: ein Update zum Heavy-Eye-Syndrom

2020 ◽  
Vol 6 (4) ◽  
pp. 178-179
Author(s):  
Santa Heede ◽  
Stephan Johannes Linke
Keyword(s):  
Differential Diagnosis ◽  
Current Literature ◽  
Surgical Techniques ◽  
Rectus Muscle ◽  
Pulley System ◽  
Important Type ◽  
Hohe Myopie ◽  
Salient Features

Heavy eye syndrome is an important type of myopia-induced strabismus. We provide an overview of heavy eye syndrome, from its history to its most salient features. The theory of the orbital and rectus muscle pulley system as it relates to heavy eye syndrome and the prevailing theories on the pathophysiology of heavy eye syndrome in the current literature are discussed. We also highlight the presentation of heavy eye syndrome, its typical features on imaging, and differential diagnosis. Finally, we provide an overview on the management of heavy eye syndrome, including a description of several current surgical techniques.

scholarly journals Augmented superior rectus muscle transposition in management of defective ocular abduction

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Mohamed F. Farid ◽  
Ahmed E. M. Daifalla ◽  
Mohamed A. Awwad
Keyword(s):  
Nerve Palsy ◽  
Rectus Muscle ◽  
Muscle Transposition ◽  
Primary Position ◽  
Superior Rectus ◽  
Sixth Nerve Palsy ◽  
Abnormal Head ◽  
Duane Retraction Syndrome ◽  
Sixth Nerve ◽  
Superior Rectus Muscle

Abstract Background Superior rectus muscle transposition (SRT) is one of the proposed transposition techniques in the management of defective ocular abduction secondary to chronic sixth nerve palsy and esotropic Duane retraction syndrome (Eso-DRS). The aim of the current study is to report the outcomes of augmented SRT in treatment of Eso-DRS and chronic sixth nerve palsy. Methods a retrospective review of medical records of patients with Eso-DRS and complete chronic sixth nerve palsy who were treated by augmented full tendon SRT combined with medial rectus recession (MRc) when intraoperative forced duction test yielded a significant contracture. Effect on primary position esotropia (ET), abnormal head posture (AHP), limitation of ocular ductions as well as complications were reported and analyzed. Results a total of 21 patients were identified: 10 patients with 6th nerve palsy and 11 patients with Eso-DRS. In both groups, SRT was combined with ipsilateral MRc in 18 cases. ET, AHP and limited abduction were improved by means of 33.8PD, 26.5°, and 2.6 units in 6th nerve palsy group and by 31.1PD, 28.6°, and 2 units in Eso-DRS group respectively. Surgical success which was defined as within 10 PD of horizontal orthotropia and within 4 PD of vertical orthotropia was achieved in 15 cases (71.4%). Significant induced hypertropia of more than 4 PD was reported in 3 patients (30%) and in 2 patients (18%) in both groups, respectively. Conclusion augmented SRT with or without MRc is an effective tool for management of ET, AHP and limited abduction secondary to sixth nerve palsy and Eso-DRS. However, this form of augmented superior rectus muscle transposition could result in high rates of induced vertical deviation.

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