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https://www.readbyqxmd.com/read/29775865/influence-of-fatigue-and-velocity-on-the-latency-and-recruitment-order-of-scapular-muscles
#1
Guillermo Mendez-Rebolledo, Valeska Gatica-Rojas, Eduardo Guzman-Muñoz, Eduardo Martinez-Valdes, Rodrigo Guzman-Venegas, Francisco Jose Berral de la Rosa
OBJECTIVES: To determine the influence of velocity and fatigue on scapular muscle activation latency and recruitment order during a voluntary arm raise task, in healthy individuals. DESIGN: Cross-sectional study. SETTING: University laboratory. PARTICIPANTS: Twenty three male adults per group (high-velocity and low-velocity). MAIN OUTCOME MEASURES: Onset latency of scapular muscles [Anterior deltoid (AD), lower trapezius (LT), middle trapezius (MT), upper trapezius (UT), and serratus anterior (SA)] was assessed by surface electromyography...
April 19, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29762283/five-to-ten-year-outcomes-of-operatively-treated-scapular-fractures
#2
Joscelyn M Tatro, Jeffrey A Gilbertson, Lisa K Schroder, Peter A Cole
BACKGROUND: The purpose of this study was to assess the 5 to 10-year clinical and patient-reported functional outcomes after open reduction and internal fixation (ORIF) of intra-articular and extra-articular scapular fractures. METHODS: We conducted a retrospective review of prospectively collected data on 106 patients who underwent ORIF of a scapular fracture at a single level-I trauma center between January 2005 and December 2010. Eight patients were excluded from the study because they had either severe neurologic injury or an isolated process fracture, and 66 patients (37 with an isolated extra-articular fracture and 29 with an intra-articular fracture) participated in the 5 to 10-year follow-up, yielding a follow-up rate of 67%...
May 16, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29761537/scapular-upward-rotator-morphologic-characteristics-in-individuals-with-and-without-forward-head-posture-a-case-control-study
#3
Fariba Khosravi, Anneli Peolsson, Noureddin Karimi, Leila Rahnama
OBJECTIVES: There are several reports suggesting that forward head posture contributes to alterations in scapular kinematics and muscle activity, leading to the development of shoulder problems. Currently, it is unknown whether forward head posture alters the thickness of the scapular muscles. The aim of this study was to compare the thickness of the serratus anterior and upper and lower trapezius muscles at rest and during loaded isometric contractions in individuals with and without forward head posture...
May 15, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29754845/do-magnetic-resonance-imaging-and-computed-tomography-provide-equivalent-measures-of-rotator-cuff-muscle-size-in-glenohumeral-osteoarthritis
#4
Peter N Chalmers, Lindsay Beck, Irene Stertz, Alexander Aleem, Jay D Keener, Heath B Henninger, Robert Z Tashjian
BACKGROUND: Rotator cuff muscle volume is associated with outcomes after cuff repair and total shoulder arthroplasty. Muscle area on select magnetic resonance imaging (MRI) slices has been shown to be a surrogate for muscle volume. The purpose of this study was to determine whether computed tomography (CT) provides an equivalent measurement of cuff muscle area to a previously validated MRI measurement. METHODS: We included 30 patients before they were undergoing total shoulder arthroplasty with both preoperative CT and MRI scans performed within 30 days of one another at 1 institution using a consistent protocol...
May 10, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29752153/acromial-roof-in-patients-with-concentric-osteoarthritis-and-massive-rotator-cuff-tears-multiplanar-analysis-of-115-computed-tomography-scans
#5
Silvan Beeler, Anita Hasler, Jonas Getzmann, Lizzy Weigelt, Dominik C Meyer, Christian Gerber
BACKGROUND: There is evidence for differences of scapular shape between shoulders with rotator cuff tears (RCT) and osteoarthritic shoulders (OA). This study analyzed orientation and shape of the acromion in patients with massive RCT and concentric OA (COA) in a multiplanar computed tomography (CT) analysis. METHODS: CT scans of 70 shoulders with degenerative RCT and 45 shoulders with COA undergoing primary shoulder arthroplasty were analyzed. The 2 groups were compared in relation of (1) shape of the acromion, (2) its orientation in space, and (3) the anteroposterior glenoid coverage in relation to the scapular plane...
May 8, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29741391/relationship-between-deltoid-and-rotator-cuff-muscles-during-dynamic-shoulder-abduction-a-biomechanical-study-of-rotator-cuff-tear-progression
#6
Felix Dyrna, Neil S Kumar, Elifho Obopilwe, Bastian Scheiderer, Brendan Comer, Michael Nowak, Anthony A Romeo, Augustus D Mazzocca, Knut Beitzel
BACKGROUND: Previous biomechanical studies regarding deltoid function during glenohumeral abduction have primarily used static testing protocols. HYPOTHESES: (1) Deltoid forces required for scapular plane abduction increase as simulated rotator cuff tears become larger, and (2) maximal abduction decreases despite increased deltoid forces. STUDY DESIGN: Controlled laboratory study. METHODS: Twelve fresh-frozen cadaveric shoulders with a mean age of 67 years (range, 64-74 years) were used...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29738929/musicians-injuries-upper-quarter-motor-control-deficits-in-musicians-with-prolonged-symptoms-a-case-control-study
#7
Flavio M Silva, Jean-Michel Brismée, Phillip S Sizer, Troy L Hooper, Gary E Robinson, Alex B Diamond
STUDY DESIGN: Case-control study. BACKGROUND: A large number of student and professional musicians are affected by long term playing related musculoskeletal disorders (PRMSDs) during their career, with prevalence rates above 80%. OBJECTIVE: To investigate if there were differences between musicians with and without prolonged symptoms of upper quarter PRMSDs in the presence of: (1) scapular dyskinesis; (2) cervical motor control and endurance deficits...
April 27, 2018: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/29737380/the-zonal-pattern-of-arterial-supply-to-the-brachial-plexus-and-its-clinical-significance
#8
An-Bo Gao, Yun-Cheng Lv, Ai-Ping Wang, Li-Yuan Zhong, Mao-Lin Tang, Binu-Prathap Thomas, Tian-Hong Peng
PURPOSE: To provide the anatomical basis of blood supply of brachial plexus for the clinical microsurgical treatment of brachial plexus injury. METHODS: Thirteen adult anticorrosive cadaveric specimens (8 males, 5 females) were dissected in this study. 3 fresh cases (2 males, 1 female) were used to observe the zonal pattern of arteries supplying brachial plexus, and 10 cases (6 males, 4 females) were used to observe the source and distribution of the brachial plexus arteries under microscope...
May 8, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29737087/-expression-of-nerve-growth-factor-and-type-3-of-acid-sensitive-ion-channels-in-rat-model-of-type-%C3%A2-prostatitis
#9
Ming-Xing Zheng, Xiao-Dong Liu, Shi-Cheng Fan, Xin-Long Yu, Bo Zhu, Jie Shen
OBJECTIVE: To investigate the expressions of nerve growth factor (NGF) and acid-sensing ion channel 3 (ASIC3) in prostatic tissue of experimental rats with type Ⅲ prostatitis. METHODS: Thirty SD rats were randomly allocated into control group and experimental group. The rats in control group were subjected to pelvic and bilateral scapular subcutaneous injections of 0.9% sodium chloride,while the rats in experimental group were given pelvic and bilateral scapular subcutaneous injections of mixed suspension of complete Freund's adjuvant and prostatic tissue to induce autoimmune prostatitis (EAP)...
January 2018: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/29737002/lower-limb-reconstruction-with-chimeric-flaps-the-quad-flap
#10
Solomon M Azouz, Nikki A Castel, Aparna Vijayasekaran, Alanna M Rebecca, Salvatore C Lettieri
Early soft-tissue coverage is critical for treating traumatic open lower-extremity wounds. As free-flap reconstruction evolves, injuries once thought to be nonreconstructable are being salvaged. Free-tissue transfer is imperative when there is extensive dead space or exposure of vital structures such as bone, tendon, nerves, or blood vessels. We describe 2 cases of lower-extremity crush injuries salvaged with the quad flap. This novel flap consists of parascapular, scapular, serratus, and latissimus dorsi free flaps in combination on one pedicle...
May 7, 2018: Microsurgery
https://www.readbyqxmd.com/read/29732952/clinical-comparison-of-scapular-fibular-and-iliac-crest-osseal-free-flaps-in-maxillofacial-reconstructions
#11
T Wilkman, A Husso, P Lassus
BACKGROUND AND AIMS: This study compared the three most used composite flaps in maxillofacial reconstructions in our institute. PATIENTS AND METHODS: Between 2000 and 2012, a total of 163 patients with mandibular, maxillary, and orbital defects received either scapular, fibular, or iliac crest osseal reconstructions in Helsinki University Hospital, Departments of Plastic Surgery and Maxillofacial Surgery. Data regarding the patient demographics, complications, and outcomes were analyzed...
May 1, 2018: Scandinavian Journal of Surgery: SJS
https://www.readbyqxmd.com/read/29730136/a-simple-method-to-directly-evaluate-the-lateral-extension-of-the-acromion-an-anatomic-study-of-128-cadaveric-scapulae
#12
Trifon Totlis, Anirudh K Gowd, Eamon D Bernardoni, Brian J Cole, Nikhil N Verma, Konstantinos Natsis
BACKGROUND: The lateral extension of the acromion from the glenohumeral joint is the critical variable that both the acromial index and critical shoulder angle reflect. The purpose of this study was to establish a simple and reproducible method to directly measure the lateral extension of the acromion that will be independent of patient demographic characteristics, scapular rotation, or other morphologic features of the shoulder. METHODS: This study used 128 unpaired cadaveric scapulae with a mean age of 69...
May 2, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29718823/wound-bed-preparation-for-capsulectomy-using-a-hydrosurgery-system
#13
Yushi Suzuki, Masaki Yazawa, Kazuo Kishi
INTRODUCTION: Wound bed preparation is necessary for proper wound healing. CASE REPORT: The case of a 75-year-old man with good outcomes after using a hydrosurgery system for capsulectomy is presented. At a 2-month follow-up visit, a fistula measuring 15 cm x 10 cm was found to have developed in the patient's left scapular region after the first wide-excision surgery for soft tissue sarcoma and reconstruction of the defect using a local flap. The wound had fluid collection and a capsule that was then debrided with a hydrosurgery system...
April 2018: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/29713904/gene-expression-changes-in-the-retina-after-systemic-administration-of-aldosterone
#14
Aoi Ono, Kazuyuki Hirooka, Yuki Nakano, Eri Nitta, Akira Nishiyama, Akitaka Tsujikawa
PURPOSE: Retinal ganglion cell (RGC) loss associated with thinning of the retinal nerve fiber layer without elevated intraocular pressure (IOP) occurs after the systemic administration of aldosterone. Since it is important to determine the mechanism of cell death independent of the IOP, we examined gene expression changes in the retina after the systemic administration of aldosterone. METHODS: Following subcutaneous implantation of an osmotic minipump into the mid-scapular region of rats, we administered an 80 μg/kg/day dose of aldosterone...
April 30, 2018: Japanese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29709414/contractile-property-measurement-of-the-torn-supraspinatus-muscle-using-real-time-tissue-elastography
#15
Takuma Yuri, Nariyuki Mura, Issei Yuki, Hiromi Fujii, Yoshiro Kiyoshige
HYPOTHESIS: In the restoration of shoulder abduction, decreased contractility of the torn rotator cuff muscle may be a cause of a poor result. The aim of this study was to investigate the relationship between the contractile property of the torn supraspinatus muscle measured by real-time tissue elastography and the Goutallier stage as modified by Fuchs et al. METHODS: The muscular hardness of the torn supraspinatus muscle was measured in 32 patients at rest and during isometric contraction with the shoulder abducted to 60° in the scapular plane...
April 27, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29706711/comparison-of-the-effects-of-pectoralis-muscles-stretching-exercise-and-scapular-retraction-strengthening-exercise-on-forward-shoulder
#16
Won-Gyu Yoo
[Purpose] The purpose of this study was to compare effect in a group of stretching and a group of muscle strengthening exercise for patients with forward scapular posture. [Subjects and Methods] This study was performed in 20 subjects who defined to the forward shoulder posture. The subjects were divided into a group of pectoralis muscles stretching and a group of muscle strength exercise for scapular retraction. [Results] The forward shoulder posture of the group of the scapular retraction exercise was significantly decreased when compared to that of the group of the pectoralis muscles stretching...
April 2018: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29703680/the-greater-tuberosity-angle-a-new-predictor-for-rotator-cuff-tear
#17
Gregory Cunningham, Emilie Nicodème-Paulin, Margaret M Smith, Nicolas Holzer, Benjamin Cass, Allan A Young
BACKGROUND: The implication of scapular morphology in rotator cuff tears has been extensively studied. However, the role of the greater tuberosity (GT) should be of equal importance. The aim of this study was to propose a new radiographic marker, the GT angle (GTA), which measures the position of the GT in relation to the center of rotation of the humeral head. The hypothesis was that a higher angle value would be associated with a higher likelihood in detecting a rotator cuff tear. METHODS: During 1 year, patients were prospectively recruited from a single institution specialized shoulder clinic in 2 different groups...
April 24, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29703017/osteochondroma-of-ventral-scapula-associated-with-chest-pain-due-to-rib-cage-compression-a-case-report
#18
Dong-Il Chun, Jae-Ho Cho, In Ho Choi, Young Yi, Jun Yong Kim, Jae Heon Kim, Sung Hun Won
RATIONALE: The scapula is relatively rare site for osteochondroma. Scapula osteochondroma is usually asymptomatic, however it may present with features such as pseudowinging, snapping scapula, bursa formation, chronic pain, and cosmetic deformities. To our best knowledge, this is the first report in the English literature about osteochondroma of ventral scapula associated with chest pain due to rib cage compression. PATIENT CONCERNS: A 14-year-old boy was transferred to the orthopedic clinic from thoracic surgery department with a complaint of intermittent, dull, and diffuse aching pain around left chest wall and back from the past 2 months...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29701428/anaesthetic-management-in-a-duchennne-muscle-dystrophy-patient-for-treatment-of-recurrent-pneumothorax
#19
Sara Mota, Liuba Germanova, Joana Cortesão, Teresa Paiva
INTRODUCTION: Duchenne muscular dystrophy (DMD) is an x linked recessive disorder. Long term prognosis is ominous, with development of respiratory distress and cardiomyopathy in advanced stage of the disease and expected death in the teens-to-mid 20s due to respiratory or cardiac failure. Peri-operative management of this patients is challenging due to difficult airway anatomy (macroglossia, limited neck and mandibular mobility). Additionally, they are at risk of developing malignant hyperthermia, rhabdomyolysis and hyperkalemic cardiac arrest when exposed to halogenated inhalational anaesthetics and depolarizing muscle relaxants...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29701376/what-about-having-a-hydropneumothorax-every-month
#20
Sara Lopes, João Maciel, Pedro Cabral Bastos, Paulo Pinho
INTRODUCTION: Endometriosis is a pathological, benign, inflammatory condition characterized by the presence of endometrial glands and stroma outside the uterine cavity, typically in the pelvis. In rare conditions, this estrogen-dependent disease may be extrapelvic, presenting with a variety of symptoms, including Thoracic Endometriosis. METHODS: A 37 year-old woman presented with her third right hydropneumothorax in three months. Her medical history included infertility, an ovarian mass (in study), biliary diskinesia and protein C deficiency...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
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