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Infraspinatus ultrasound

P J Mullaney
AIM: To assess the developing competence of two trainees learning groin and shoulder ultrasound when compared to an expert practitioner. MATERIALS AND METHODS: Specific pro formas were used to record ultrasound trainee performance in each scan region and their diagnosis was compared to the opinion of the expert. The data derived were reviewed using kappa analysis and training end points were defined as a minimum 80% trainee agreement with the expert. Retrospectively, cumulative sum analysis was applied to the data to assess case-by-case performance...
February 4, 2019: Clinical Radiology
Hande Guney-Deniz, Gulcan Harput, Ugur Toprak, Irem Duzgun
CONTEXT: The scapular retraction exercises are widely used among clinicians to balance the activity of the scapular muscles as well as the rotator cuff muscles in different shoulder abduction positions. OBJECTIVES: The aim of this study was to investigate the relationship between scapular (middle and upper trapezius) and shoulder muscles (middle deltoid and infraspinatus) activation level differences and acromiohumeral distance changes during shoulder abduction with scapular retraction...
May 29, 2018: Journal of Sport Rehabilitation
Patrick J Grabowski, Laura C Slane, Darryl G Thelen, Travis Obermire, Kenneth S Lee
OBJECTIVE: To evaluate stiffness of infraspinatus muscle tissue, both with and without latent trigger points, using ultrasound shear wave elastography (SWE). The primary hypothesis is that muscle with a latent trigger point will demonstrate a discrete region of increased shear wave speed. The secondary hypothesis is that shear wave speed (SWS) in the region with the trigger point will be higher in patients compared with controls, and will be similar between the two groups in the uninvolved regions...
November 2018: Archives of Physical Medicine and Rehabilitation
Kwanwoo Kim, Hyun-Jung Hwang, Seul-Gi Kim, Jin-Hyuck Lee, Woong Kyo Jeong
BACKGROUND: Quantitative assessment of rotator cuff muscle activity is important in the treatment of shoulder disorders. However, the known methods for assessing rotator cuff muscle activity thus far have been inaccurate, invasive, and inconvenient. QUESTIONS/PURPOSES: (1) Does the activity of the deltoid, supraspinatus, and infraspinatus muscles measured using ultrasound shear wave elastography have a linear correlation with muscle activity assessed using generally used methods, including isokinetic dynamometry and electromyography? (2) Does the activity of the deltoid, supraspinatus, and infraspinatus muscles measured using shear wave elastography show good intraobserver and interobserver reliability? METHODS: Twelve volunteers participated in intrasession reliability experiments...
June 2018: Clinical Orthopaedics and related Research
Sangeeta Rathi, Nicholas F Taylor, Brendan Soo, Rodney A Green
OBJECTIVES: To determine whether patients with symptomatic rotator cuff pathology had more glenohumeral joint translation and different patterns of rotator cuff muscle activity compared to controls. DESIGN: Repeated measurements of glenohumeral translation and muscle activity in two positions and six testing conditions in two groups. METHODS: Twenty participants with a symptomatic and diagnosed rotator cuff tear and 20 age, and gender matched controls were included...
September 2018: Journal of Science and Medicine in Sport
Joseph P Kelly, Shane L Koppenhaver, Lori A Michener, Laurel Proulx, Francis Bisagni, Joshua A Cleland
The aim of this study was to compare measurement methods of tissue stiffness using ultrasound shear wave elastography (SWE) and superficial mechanical deformation (MyotonPRO) in the infraspinatus, erector spinae, and gastrocnemius muscles. Thirty healthy volunteers were assessed during rest, 40% and 80% maximum voluntary isometric contraction (MVIC). Correlation of the two methods in the three muscle regions was significant (r = 0.23-0.71, p < .05), and strongest in the gastrocnemius. MyotonPRO reliability was excellent (ICC > 0...
February 2018: Journal of Electromyography and Kinesiology
Brett S Pexa, Eric D Ryan, Elizabeth E Hibberd, Elizabeth Teel, Terri Jo Rucinski, Joseph B Myers
CONTEXT: Following a baseball pitching bout, changes can occur to glenohumeral range of motion that could be linked to injury. These effects are in part due to the posterior shoulder's eccentric muscle activity, which can disrupt muscle contractile elements and lead to changes in muscle cross sectional area (CSA), as measured by ultrasound. OBJECTIVE: To assess changes in muscle CSA, and range of motion immediately before and after pitching, and days 1-5 following pitching...
November 15, 2017: Journal of Sport Rehabilitation
Sangeeta Rathi, Nicholas F Taylor, Rodney A Green
The proposed stabilizing mechanism of rotator cuff muscles is to limit excessive humeral head translation. However, an accurate measurement of glenohumeral joint translation in vivo has been challenging. We aimed to measure the effect of rotator cuff muscle contraction on glenohumeral joint translation using real time ultrasound (RTUS) and electromyography. Twenty healthy adults with no history of shoulder pathology were recruited. Six intramuscular electrodes were inserted in the rotator cuff muscles (supraspinatus, upper and lower infraspinatus, teres minor, upper and lower subscapularis)...
December 8, 2016: Journal of Biomechanics
Jaime Salom-Moreno, Laura Jiménez-Gómez, Victoria Gómez-Ahufinger, María Palacios-Ceña, José L Arias-Buría, Shane L Koppenhaver, César Fernández-de-Las-Peñas
BACKGROUND: The application of dry needling usually is associated with postneedling-induced pain. A postneedling intervention to reduce this adverse event is needed. OBJECTIVE: To determine the effectiveness of low-load exercise on reducing postneedling-induced pain after dry needling of active trigger points (TrPs) in the infraspinatus muscle in subacromial pain syndrome. DESIGN: A 72-hour follow-up, single-blind randomized controlled trial...
December 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
Kimberley L Cullen, James P Dickey, Stephen H M Brown, Stephanie G Nykamp, Leah R Bent, Jeffrey J Thomason, Noël M M Moens
BACKGROUND: The purpose of this study was to measure the muscular activation in four forelimb muscles while dogs performed agility tasks (i.e., jumping and A-frame) and to provide insight into potential relationships between level of muscular activation and risk of injury. Muscle activation in eight healthy, client-owned agility dogs was measured using ultrasound-guided fine-wire electromyography of four specific forelimb muscles: Biceps Brachii, Supraspinatus, Infraspinatus, and Triceps Brachii - Long Head, while dogs performed a two jump sequence and while dogs ascended and descended an A-frame obstacle at two different competition heights...
March 7, 2017: BMC Veterinary Research
Adam J Popchak, Nathan S Hogaboom, Dharmesh Vyas, John P Abt, Anthony Delitto, James J Irrgang, Michael L Boninger
PURPOSE: Youth baseball frequently results in repetitive strain injuries. Quantitative ultrasound allows real-time imaging with the ability to identify acute markers of tendon change. The study objective was to determine acute quantitative ultrasound changes in the long head of the biceps and infraspinatus tendons of the throwing and nonthrowing shoulders during a pitching performance. We hypothesized the tendons of the pitching arm would exhibit an increased width and decreased echogenicity after pitching and that tendons of the nonpitching arm would not demonstrate such changes...
June 2017: Medicine and Science in Sports and Exercise
Jessica Wade, Taryn Taylor
Idiopathic brachial neuritis is a distinctive condition that occurs most often in healthy individuals. It characteristically starts with an acute unilateral shoulder pain followed by a complex of symptoms, including weakness, paresthesias, and numbness. The cause of this syndrome is unknown and difficult to diagnose in the initial phase but may occur postsurgery, postinfection, posttrauma, or postvaccination. In this case, the patient's inciting event appeared to be a cesarean section. There was no trauma to the shoulder or upper extremity by way of positioning during the procedure...
December 2015: Journal of Brachial Plexus and Peripheral Nerve Injury
Victor Longo, Jon A Jacobson, David P Fessell, Kenneth Mautner
The purpose of this series was to retrospectively characterize the ultrasound findings of delayed-onset muscle soreness (DOMS). The Institutional Review Board approved our study, and informed consent was waived. A retrospective search of radiology reports using the key phrase "delayed-onset muscle soreness" and key word "DOMS" from 2001 to 2015 and teaching files was completed to identify cases. The sonograms were reviewed by 3 fellowship-trained musculoskeletal radiologists by consensus...
November 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
Dominique M Rouleau, G Yves Laflamme, Jennifer Mutch
BACKGROUND: This is a retrospective prognostic study on soft tissue injury following isolated greater tuberosity (GT) fractures of the proximal humerus with respect to the relationship between rotator cuff tears and GT displacement. METHODS: Forty-three patients with isolated GT fractures were recruited and evaluated with a standardized interview and physical examination, quality of life and shoulder function questionnaires (Western Ontario Rotator Cuff Index, SF-12 Version 2, Constant, Quick-Disabilities of the Arm, Shoulder and Hand, Visual Analogue Scale), standard shoulder radiographs and an ultrasound...
October 2016: Shoulder & Elbow
Kyeongwon Kim, Hong Geum Kim, Daeheon Song, Jung Yoon Yoon, Myung Eun Chung
In evaluating patients complaining of shoulder pain, ultrasonography is an emerging imaging tool due to convenience, low cost, high sensitivity and specificity. However, normative values of ultrasound dimensions of the shoulder to be compared with pathologic findings in Korean adults are not provided yet. We evaluated the ultrasound dimensions of the rotator cuff, long head of biceps tendon, deltoid muscle and acromioclavicular joint in Korean healthy adults. Shoulder ultrasonography was performed on 200 shoulders from 100 healthy adults...
September 2016: Journal of Korean Medical Science
Scott A Rodeo, Joseph T Nguyen, John T Cavanaugh, Yashika Patel, Ronald S Adler
BACKGROUND: Shoulder pain is a common problem in competitive swimmers, but the structural alterations in elite-level competitive swimmers are not well known. HYPOTHESIS: Adaptive changes are common in the rotator cuff, bursa, labrum, and capsule in elite swimmers, and such abnormalities are related to factors concerning training and correlate with symptoms. STUDY DESIGN: Cross-sectional study; Level of evidence, 3. METHODS: The study population was the 2008 United States Olympic swimming team...
December 2016: American Journal of Sports Medicine
April D Armstrong, Jodi D Southam, Andrea H Horne, Christopher S Hollenbeak, Donald J Flemming, Milind J Kothari
BACKGROUND: The literature lacks electromyographic (EMG) examination of subscapularis function in the postoperative period after total shoulder arthroplasty (TSA). The primary purpose of this study was to document EMG activity of the subscapularis after TSA and to correlate it with clinical and ultrasound findings. METHODS: The study included 30 patients who were at least 1 year (average, 2.1 years) from surgery, status post TSA approached through a standard subscapularis tenotomy...
October 2016: Journal of Shoulder and Elbow Surgery
Asuka Desroches, Shahnaz Klouche, Charles Schlur, Thomas Bauer, Thomas Waitzenegger, Philippe Hardy
PURPOSE: To compare the efficacy of suprascapular nerve block (SSB) and interscalene block (ISB) as postoperative analgesia within the first 24 hours after arthroscopic supraspinatus and/or infraspinatus tendon repair. METHODS: A single-blind, randomized controlled study was performed between 2013 and 2014. The inclusion criteria were arthroscopic supraspinatus and/or infraspinatus tendon repair confirmed intraoperatively, with or without associated procedures, and informed consent...
November 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
Glaydson Gomes Godinho, Flavio de Oliveira França, Freitas José Marcio Alves, Fábio Nagato Watanabe, Leonardo Oliveira Nobre, Manoel Augusto De Almeida Neto, Marcos André Mendes Da Silva
OBJECTIVE: To evaluate the functional and anatomical results from surgical treatment via arthroscopy in cases of complete rupture of the rotator cuff, using ultrasound images and the Constant and Murley functional index to investigate the correlation between them. METHODS: 100 patients (110 shoulders) were evaluated. The mean follow-up was 48.8 ± 33.28 months (12 to 141 months). The mean age was 60.25 ± 10.09 (36 to 81 years). Rupture of the supraspinal tendon alone occurred in 85 cases (77%), and in association with the infraspinatus in 20 cases (18%) and subscapularis in four shoulders (4%)...
March 2010: Revista Brasileira de Ortopedia
Marni Wesner, Terry Defreitas, Heather Bredy, Louisa Pothier, Ziling Qin, Ashley B McKillop, Douglas P Gross
OBJECTIVE: This pilot study aimed to inform future research evaluating the effectiveness of Platelet Rich Plasma (PRP) injection for tendinopathy. DESIGN: Randomized control trial (RCT) and synchronous observational cohort studies. For the RCT, consecutive consenting patients treated at an academic sports medicine clinic were randomly assigned to either a PRP or placebo control group. SETTING: The Glen Sather Sport Medicine Clinic, Edmonton, Canada...
2016: PloS One
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