3,101 results match your criteria medial rectus

Compressive optic neuropathy (CON) in Graves' disease caused by hypertrophy of levator and superior rectus muscles: A case report.

Medicine (Baltimore) 2021 Apr;100(14):e25062

Department of Ophthalmology, Osaka Medical College, Osaka, Japan.

Rationale: Enlargemento of the medial rectus is the most predominant factor of compressive optic neuropathy (CON) in Graves' disease. This case report indicates that CON could develop only from the hypertrophic superior levator and superior rectus (SL/SR) muscle in a patient with poorly controlled Graves' disease, and described the possible risk of FT3-thyrotoxicosis with a prominent goiter to develop the current rare case with a review of the literature.

Patient Concerns: A 66-year-old woman undergoing endocrine management of hyperthyroidism with prominent goiter visited the Department of Ophthalmology due to right-eye upper-eyelid retraction. Read More

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Bilateral combined resection-recession of the same rectus muscle versus Fadenoperation for treatment of purely tonic esotropias.

Eur J Ophthalmol 2021 Apr 7:11206721211008043. Epub 2021 Apr 7.

Department of Ophthalmology, Centre Hospitalier Universitaire Purpan, Toulouse, France.

Purpose: To compare the efficiency of bilateral combined resection-recession surgery of the medial rectus muscle versus using a modified Fadenoperation for surgical management of esotropias that totally resolve under general anesthesia, which we called "purely tonic" esotropias.

Methods: We included 65 unselected consecutive cases of patients with purely tonic esotropias who underwent surgery between October 2017 and 2018. Patients were divided into group I, who underwent a combined resection and recession of medial recti muscles, and group II, who underwent a bilateral medial rectus Fadenoperation using posterior strapping. Read More

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Laser interstitial thermal therapy for gyrus rectus cortical dysplasia in a child: a technical note.

Childs Nerv Syst 2021 Apr 7. Epub 2021 Apr 7.

Department of Neurosurgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, USA.

Laser interstitial thermal therapy (LITT) has become a popular tool in the treatment of tumors and epilepsy. While most commonly used for the treatment of mesial temporal lobe epilepsy, it can be used as a minimally invasive option for the treatment of any seizure focus but has very rarely been discussed in the setting of cortical dysplasia. Here, we discuss the case of a 5-year-old girl with medically refractory epilepsy secondary to a right medial orbital gyrus and gyrus rectus cortical dysplasia successfully treated with LITT. Read More

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MRI of the intraorbital ocular motor nerves on three-dimensional double-echo steady state with water excitation sequence at 3.0 T.

Jpn J Radiol 2021 Apr 3. Epub 2021 Apr 3.

Department of MRI, Meizhou People's Hospital, Huangtang Road, Meijiang, Meizhou, 514031, Guangdong Province, People's Republic of China.

Purpose: To explore the capability of three-dimensional double-echo steady state with water excitation sequence (3D-DESS-WE) to determine the intraorbital ocular motor nerves (IOMN).

Materials And Methods: A 3.0 T scanner was applied to investigate 30 healthy volunteers based on the 3D-DESS-WE sequence. Read More

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The Measurement of Stiffness for Major Muscles with Shear Wave Elastography and Myoton: A Quantitative Analysis Study.

Diagnostics (Basel) 2021 Mar 15;11(3). Epub 2021 Mar 15.

Department of Physical Therapy, Gachon University, Incheon 21936, Korea.

The present study was performed to assess the relationship between hand-held myotonometer MyotonPRO and shear wave elastography (SWE) measurements of lower limb muscle stiffness during resting and active voluntary contraction. Forty healthy young adults, (20 males and 20 females) participated in the study. The stiffness of each subject's rectus femoris (RF), biceps femoris (BF), tibialis anterior (TA), and medial gastrocnemius (MG) was measured repeatedly by MyotonPRO and SWE. Read More

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[Abdominal wall hernias part 2 : Operative treatment techniques].

Chirurg 2021 Apr 1. Epub 2021 Apr 1.

Viszeral- und Gefäßchirurgie,Referenzzentrum für Hernienchirurgie, Vivantes Klinikum Spandau, Neue Bergstraße 6, 13585, Berlin, Deutschland.

In accordance with the guidelines suture procedures, a preperitoneal mesh technique, the laparoscopic intraperitoneal onlay mesh (IPOM) or the new minimally invasive techniques, i.e. the endoscopic mini/less open sublay (E/MILOS) technique, enhanced-view totally extraperitoneal (eTEP) repair and totally endoscopic sublay (TES) repair should be used for primary abdominal wall hernias (umbilical hernia, epigastric hernia) depending on the defect size and patient characteristics (obesity, rectus abdominis muscle diastasis). Read More

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The role of enhanced plantar-surface sensory feedback on lower limb EMG during planned gait termination.

Somatosens Mot Res 2021 Mar 31:1-11. Epub 2021 Mar 31.

Department of Kinesiology and Physical Education, Faculty of Science, Wilfrid Laurier University, Waterloo, ON, Canada.

Purpose/aim of the study: Generation of smooth movement relies on the central nervous system (CNS) having information from the visual, vestibular and somatosensory systems to effectively execute motor behaviour. Recently, cutaneous afferent inputs have been linked to lower leg motorneuron pools, resulting in a growing interest of adding texture to the plantar foot sole interface as a novel method to facilitate cutaneous feedback. The aim of this study was to characterize the changes in magnitude and temporal organization of muscle activity, and to investigate motor output changes from enhanced tactile feedback during perturbed gait termination. Read More

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Lower limb muscle activation during outdoor running: differences between sprinters, middle-distance and long-distance runners.

Sports Biomech 2021 Mar 31:1-12. Epub 2021 Mar 31.

Department of Physiotherapy, Occupational Therapy, Rehabilitation and Physical Medicine. Health Sciences Faculty, Rey Juan Carlos University, Madrid, Spain.

Running is one of the most popular sport practices in the world. However, to our knowledge, none of the previous research about the characteristics of outdoor running makes a distinction between the different modalities of runners. Sixty-five healthy runners classified in sprinters, middle distance and long-distance runners performed five series of 100 metres on the synthetic outdoor track at competition pace. Read More

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Consecutive Esotropia with and without Abduction Limitation - Risk Factors and Surgical Outcomes of Lateral Rectus Advancement.

J Binocul Vis Ocul Motil 2021 Mar 30:1-9. Epub 2021 Mar 30.

Jasti V Ramanamma Children's Eye Care Centre, Child Sight Institute, L V Prasad Eye Institute, Hyderabad, India.

: To identify risk factors for abduction limitation in consecutive esotropia following surgical correction of exotropia. To study outcomes of lateral rectus advancement for consecutive esotropia correction.: Patients with consecutive esotropia (>10PD) operated between 2007 and 2019 with a minimum follow-up of 2 months were reviewed retrospectively. Read More

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[Outcomes after medial rectus recession and lateral rectus plication for abducens nerve palsy: A retrospective study].

J Fr Ophtalmol 2021 Mar 25. Epub 2021 Mar 25.

Service d'ophtalmologie, Centre Hospitalier Universitaire Régional de Bretonneau, 2, boulevard Tonnellé, 37044 Tours, France.

Background: Abducens nerve palsy (ANP) is the most common oculomotor palsy. This study aimed to evaluate the efficacy of medial rectus recession with lateral rectus plication in patients with unilateral acquired ANP and to describe the etiologies of this condition.

Methods: Thirty-one patients were included in this retrospective single-center study conducted between 2000 and 2019 at the university research hospital in Tours. Read More

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A rare case of orbital myositis.

J Ayub Med Coll Abbottabad 2020 Oct-Dec;32(Suppl 1)(4):S706-S708

Department of Radiology, Shifa International Hospital, Islamabad, Pakistan.

The orbital myositis is a rare inflammatory disorder of extraocular muscles and is considered a subtype of nonspecific orbital inflammatory syndrome. It is usually a unilateral disease process with a limited course. We report a case of a 34-year-old man who was referred to the Radiology Department at Shifa International Hospital, Islamabad with 6 months history of severe pain, swelling, and redness in the left eye associated with blurring of vision and headache. Read More

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Altered glucose metabolism of the olfactory-related cortices in anosmia patients with traumatic brain injury.

Eur Arch Otorhinolaryngol 2021 Mar 21. Epub 2021 Mar 21.

Department of Otolaryngology, Smell and Taste Center, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.

Purpose: Impaired brain cortices contribute significantly to the pathophysiological mechanisms of post-traumatic olfactory dysfunction (PTOD). This study aimed to use F-fluorodeoxyglucose positron emission tomography/computed tomography (F-FDG PET/CT) to measure cerebral cortices' metabolism activity and then to explore their associations with olfaction in patients with PTOD.

Methods: Ethics committee-approved prospective studies included 15 patients with post-traumatic anosmia and 11 healthy volunteers. Read More

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Surgical strategy for third nerve palsy with aberrant regeneration: Harnessing the aberrant power.

Indian J Ophthalmol 2021 Apr;69(4):910-917

Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India; Lions Sight First Eye Hospital, Nairobi, Kenya.

Purpose: Our study aimed to evaluate the outcome of contralateral eye (CE) fixation duress squint surgery (FDSS) in third nerve palsy (3 NP) with aberrant regeneration and compare the postoperative ptosis correction with preoperative ptosis improvement on adduction.

Methods: Patients of 3 NP with aberrant regeneration who underwent CE FDSS between December 2012-July 2015 in a tertiary-care eye hospital with a follow-up period of 1-year were retrospectively studied to analyze preoperative and postoperative details. Surgical success was defined as the correction of ptosis within 1 mm of preoperative ptosis improvement during maximal adduction of the affected eye, postoperative alignment ≤10Δ, and resolution of subjective diplopia in primary position. Read More

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Lemierre's syndrome with cavernous sinus thrombosis caused by dental infection.

BMJ Case Rep 2021 Mar 16;14(3). Epub 2021 Mar 16.

Department of Internal Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand

Lemierre's syndrome is a rare multisystemic infection beginning in oropharynx commonly caused by oral anaerobic organisms and leading to internal jugular vein thrombosis with septic emboli. Here, we describe a 45-year-old woman with hypertension and unrecognised type 2 diabetes who presented to a community hospital with fever, double vision and septic shock. Examination showed neck pain aggravated by neck flexion, limited ocular movement of right lateral rectus, left medial rectus and left superior oblique and incomplete ptosis of the left eye. Read More

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[MRI study of rectus extraocular muscles in concomitant exotropia with small angle vertical deviation].

Zhonghua Yan Ke Za Zhi 2021 Mar;57(3):223-227

Tianjin Eye Hospital, Tianjin Key Lab. of Ophthalmology and Visual Science, Nankai University Affiliated Eye Hospital, Clinical College of Ophthalmology of Tianjin Medical University, Tianjin Eye Institute, Tianjin 300020, China.

To observe the changes of four pulley locations of extraocular rectus muscles and rectus muscle volumes, as well as superior and inferior part ratio of horizontal rectus muscles, in concomitant exotropia with small-angle vertical deviation in primary gaze. Cross-sectional study. Data was collected from January 2018 to December 2019 in Tianjin Eye Hospital. Read More

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Relation of Decreased Functional Connectivity Between Left Thalamus and Left Inferior Frontal Gyrus to Emotion Changes Following Acute Sleep Deprivation.

Front Neurol 2021 26;12:642411. Epub 2021 Feb 26.

Department of Neurology, Secondary Medical Center, National Clinical Research Center for Geriatric Disease, Chinese PLA General Hospital, Beijing, China.

The thalamus is a key node for sleep-wake pathway gate switching during acute sleep deprivation (ASD), and studies have shown that it plays a certain role in emotion changes. However, there are no studies on the association between the thalamus and emotion changes in ASD. In this study, we used resting-state functional magnetic resonance imaging (R-fMRI) to explore whether changes in the functional connections between the thalamus and other brain regions are related to emotion changes and further explored the function of the thalamus under total ASD conditions. Read More

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February 2021

Correlation between uniocular deviation and duction changes following different decompression surgeries in thyroid eye disease.

BMC Ophthalmol 2021 Mar 12;21(1):134. Epub 2021 Mar 12.

Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.

Background: Postoperative ocular imbalance is an important problem for orbital decompression surgery in thyroid eye disease (TED). The aim of this study was to evaluate the changes in unilateral ocular deviation and duction following orbital decompression and discuss the biomechanics of ocular imbalance.

Methods: Fifty-four TED patients who underwent unilateral orbital decompression were included. Read More

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Three-dimensional modelling of human quadriceps femoris forces.

J Biomech 2021 Mar 1;120:110347. Epub 2021 Mar 1.

Neuromusculoskeletal Mechanics Research Program, Faculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, AB T6G 2H9, Canada.

Quadriceps intramuscular anatomy is typically described in two dimensions. However, anatomical descriptions indicate fascicles in the quadriceps may have a three-dimensional orientation. The purpose of this investigation was to quantify the maximum force generating capacity of the individual quadriceps' muscles in three dimensions. Read More

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Correlation analysis between lower limb muscle architectures and cycling power via ultrasonography.

Sci Rep 2021 Mar 8;11(1):5362. Epub 2021 Mar 8.

Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Room 6 01, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.

The primary purpose was to examine the relationship between the muscle architectural characteristics of short and long-distance cyclist-including muscle thickness, fascicle angle, and fascicle length-of the anterior thigh and posterior leg and its impact in 20-s cycling power. The secondary purpose was to clarify the muscle variables that predict the cycling power by using ultrasonography to measure the muscle architectural characteristics. Twenty-four varsity cyclists participated in this study, of whom 12 were short-distance cyclists and 12 were long-distance cyclists. Read More

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Superior Rectus Transposition and Medial Rectus Recession for Treatment of Duane Retraction Syndrome and Sixth Nerve Palsy.

J Binocul Vis Ocul Motil 2021 Mar 5:1-5. Epub 2021 Mar 5.

Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran.

: To evaluate the outcome of augmented superior rectus transposition (SRT) with medial rectus (MR) recession in patients with Duane Retraction Syndrome (DRS) and sixth nerve palsy.: Twenty four patients (16 DRS and 8 sixth nerve palsy) that underwent the procedure were included. The superior rectus muscle was secured, detached, and re-attached to the sclera along the spiral of Tilaux, adjacent to lateral rectus insertion. Read More

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Yokoyama procedure for esotropia associated with high myopia: real-world data from a large-scale multicentre analysis.

Acta Ophthalmol 2021 Mar 2. Epub 2021 Mar 2.

Department of Ophthalmology, University of Bonn, Bonn, Germany.

Purpose: High myopic patients may develop strabismus due to globe dislocation out of the normal extraocular muscle cone. Surgical correction of this strabismus type is possible by joining the superior and lateral rectus muscles without the need for a scleral suture called the Yokoyama procedure. Data from large patient samples and the evaluation of a potential effect of an additional medial rectus recession (MRR) have been lacking so far. Read More

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[Bridle operation for incomplete oculomotor nerve paralysis (superior rectus and lateral rectus nasal inferior transposition)].

Michael Gräf

Ophthalmologe 2021 Mar 1. Epub 2021 Mar 1.

Klinik und Poliklinik für Augenheilkunde, Universitätsklinikum Gießen und Marburg GmbH, Standort Gießen, Friedrichstr. 18, 35392, Gießen, Deutschland.

Purpose: To demonstrate the technique and effectiveness of the bridle operation for oculomotor nerve paralysis with maintained elevation.

Method: The bridle operation includes transposition of the lateral rectus muscle (passing behind inferior oblique and rectus muscles) and the superior rectus muscle (behind superior oblique tendon and medial rectus muscle) to the nasal inferior surface of the globe.

Results: In the reported case, this procedure corrected exo-hypertropia of 30-40°/20-30° without inducing cyclotropia. Read More

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Isolated Medial Longitudinal Fasciculus Midbrain Infarction Mimicking Medial Rectus Paralysis.

Neurologist 2021 Mar 4;26(2):66-68. Epub 2021 Mar 4.

Department of Neurology, The First Affiliated Hospital, Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine).

Introduction: Medial longitudinal fasciculus infarction is rare in clinical practice and generally accompanied by brain tissue damage around the medial longitudinal fasciculus. Isolated medial longitudinal fasciculus midbrain infarction was seldom reported.

Case Report: An 81-year-old man with hypertension was admitted to our hospital because of sudden onset diplopia. Read More

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[Long term outcomes of botulinum toxin injections in infantile esotropia].

J Fr Ophtalmol 2021 Apr 22;44(4):509-518. Epub 2021 Feb 22.

Service ophtalmologie, centre Francois Xavier Michelet, CHU de Bordeaux, Bordeaux, France.

Purpose: To evaluate long terms outcomes of botulinum toxin in infantile esotropia by measuring the amount of microtropia 24 months after injection. Secondary purpose was to identify predictive factors of microtropia.

Methods: A retrospective, single-center study was performed at the university medical center in Bordeaux between 2001 and 2018, including all patients with infantile esotropia greater than 20 D. Read More

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Longitudinal course of consecutive esotropia in children following surgery for basic-type intermittent exotropia.

Eye (Lond) 2021 Feb 24. Epub 2021 Feb 24.

Department of Ophthalmology, Seoul National University Hospital, Seoul, Republic of Korea.

Purpose: To evaluate the longitudinal course of consecutive esotropia following surgery for basic-type intermittent exotropia.

Methods: Patients who underwent surgery (bilateral lateral rectus muscle recession [BLR] or unilateral lateral rectus muscle recession-medial rectus muscle resection [RR]) for the treatment of intermittent exotropia between 2011 and 2017 with a minimum follow-up period of 2 years were retrospectively reviewed. When esodeviation occurred later in patients with orthotropia or exodeviation at postoperative month 1, it was defined as delayed-onset consecutive esotropia. Read More

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February 2021

Outcomes of modified vertical rectus belly transposition versus augmented superior rectus transposition for chronic abducens nerve palsy.

J AAPOS 2021 Feb 20. Epub 2021 Feb 20.

Department of Ophthalmology and Vision Science, Eye & ENT Hospital, Shanghai Medical School, Fudan University, Shanghai, China; NHC Key Laboratory of Myopia, Fudan University, Shanghai, China; Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China. Electronic address:

Purpose: To compare the surgical outcomes of modified vertical rectus belly transposition (mVRBT) and medial rectus recession (MRc) versus augmented superior rectus transposition (aSRT) and MRc in Chinese patients with chronic abducens nerve palsy.

Methods: The medical records of patients with chronic abducens nerve palsy who underwent mVRBT/MRc or aSRT/MRc were retrospectively reviewed. Pre- and postoperative deviation in primary position, pre- and postoperative abduction limitation, and complications were recorded. Read More

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February 2021

Muscle activity while ambulating on stairs and slopes: A comparison between individuals scheduled and not scheduled for knee arthroplasty and healthy controls.

Musculoskelet Sci Pract 2021 04 16;52:102346. Epub 2021 Feb 16.

Department of Occupational Therapy, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel. Electronic address:

Objective: To examine muscle activity patterns of the lower limbs while ascending and descending stairs and slope in adults with knee Osteoarthritis (knee-OA), who were scheduled or not scheduled for Total Knee Replacement (TKR) and healthy controls.

Methods: This cross-sectional study included three groups: knee-OA subjects scheduled for TKR (TKR group; N = 15) and not scheduled for TKR (NTKR group; N = 15) and age-matched controls (N = 11). Outcome measures included: joint range of motion (ROM), Timed Up and Go (TUG), joint pain levels, and functional disability (Oxford) score. Read More

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Variant types of Duane retraction syndrome: synergistic divergences and convergences.

J AAPOS 2021 Feb 17. Epub 2021 Feb 17.

State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China. Electronic address:

Purpose: To present the clinical features of 4 patients with Duane retraction syndrome characterized by synergistic divergence or convergence, abnormal vertical movements, and accessory fibrotic bands.

Methods: The medical records of 4 patients were reviewed retrospectively for the following clinical manifestations: visual acuity, refraction, ocular alignments, ocular motility, head position, magnetic resonance imaging, surgical techniques, and outcomes.

Results: All 4 cases were diagnosed as variants of Duane retraction syndrome. Read More

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February 2021