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Hongbo Tan, Dean Wang, Amir H Lebaschi, Ian D Hutchinson, Liang Ying, Xiang-Hua Deng, Scott A Rodeo, Russell F Warren
BACKGROUND: Many orthopaedic surgical procedures involve reattachment of a single tendon to bone. Whether tendon-to-bone healing is better facilitated by tendon fixation within a bone tunnel or on a cortical surface is unknown. The purpose of this study was to evaluate tendon-healing within a bone tunnel compared with that on the cortical surface in a rabbit model of biceps tenodesis. METHODS: Thirty-two rabbits (24 weeks of age) underwent unilateral proximal biceps tenodesis with tendon fixation within a bone tunnel (BT group) or on the cortical surface (SA [surface attachment] group)...
March 21, 2018: Journal of Bone and Joint Surgery. American Volume
M Iglesias, M Ramírez-Berumen, P Butrón, J Alberú-Gómez, F Salazar-Hernández, J Macias-Gallardo, R P Leal-Villalpando, J Zamudio-Bautista, V Acosta, L Jauregui, A Hernández-Campos, V Espinosa-Cruz, J Vázquez-Lamadrid, J González-Sánchez, J Cuellar-Rodriguez, J G Sierra-Madero, R Gaytan-Cervantes, S Contreras-Barbosa, A Navarro-Lara, J Guzman-Gonzalez, J Domínguez-Cherit, M Vilatoba, S Toussaint-Caire, F Vega-Boada, F J Gómez-Pérez, M Mayorquin-Ruiz
BACKGROUND: The function reported after arm transplantation is deemed beneficial relative to the marked disability that upper arm amputation causes. OBJECTIVE: We report a 51-year-old man with a Disabilities of the Arm, Shoulder and Hand (DASH) score of 75.83 who underwent bilateral arm transplantation in October 2015. PROCEDURE: The right arm was transplanted at the glenohumeral joint level, including transplantation of the humeral head, joint capsule, and rotator cuff ligaments and tendons...
March 16, 2018: Transplantation Proceedings
Lorenzo Merlini, Matthew Yalizis, Yannick Carrillon, Hugo Bothorel, Mo Saffarini, Arnaud Godenèche
BACKGROUND: A rare form of rotator cuff tear (RCT) is observed secondary to glenohumeral dislocation, followed by immediate repositioning, as well as formation of scar tissue between tendons and tuberosities. Radiographic diagnosis of such "degloving" tears is problematic because they are obscured by scar tissue. We aimed to describe characteristics of degloving tears and report outcomes following their arthroscopic repair. METHODS: Among 67 patients who underwent arthroscopic repair of RCTs secondary to shoulder dislocation, we identified 8 patients (12%) (7 anterior dislocations and 1 posterior dislocation), aged 54...
March 16, 2018: Journal of Shoulder and Elbow Surgery
Alison M Barnard, Rebecca J Willcocks, Erika L Finanger, Michael J Daniels, William T Triplett, William D Rooney, Donovan J Lott, Sean C Forbes, Dah-Jyuu Wang, Claudia R Senesac, Ann T Harrington, Richard S Finkel, Barry S Russman, Barry J Byrne, Gihan I Tennekoon, Glenn A Walter, H Lee Sweeney, Krista Vandenborne
OBJECTIVE: To provide evidence for quantitative magnetic resonance (qMR) biomarkers in Duchenne muscular dystrophy by investigating the relationship between qMR measures of lower extremity muscle pathology and functional endpoints in a large ambulatory cohort using a multicenter study design. METHODS: MR spectroscopy and quantitative imaging were implemented to measure intramuscular fat fraction and the transverse magnetization relaxation time constant (T2) in lower extremity muscles of 136 participants with Duchenne muscular dystrophy...
2018: PloS One
Tzu-Hsien Lee
This study recruited 14 participants to examine the effects of load and height of load's center of gravity (COG) on muscular activities of brachioradialis, biceps brachii, and erector spinae, and on box vibration acceleration (g) in manual holding tasks. Each participant was asked to hold a box in twelve conditions (four loads × three heights of the load's COG). The results showed that the muscular activities of brachioradialis, biceps brachii, and erector spinae significantly increased with load; however, they were not affected by the height of load's COG...
March 19, 2018: International Journal of Occupational Safety and Ergonomics: JOSE
Jimmy Tat, Adam Hart, Adam Cota, Khalid Alsheikh, Dominique Behrends, Paul A Martineau
Distal biceps tendon ruptures are treated operatively in active healthy individuals. Treatment consists of either single- or double-incision techniques, each with its own set of advantages and complications. The double incision was traditionally preferred for a more anatomic reattachment of the distal biceps tendon, but there has been renewed interest in the single-incision anterior approach given its lower risk for heterotopic ossification. However, current single-incision techniques cannot achieve anatomic reconstruction of the distal biceps because of a restricted operational angle with standard rigid instruments...
February 2018: Arthroscopy Techniques
Yang-Soo Kim, Hyo-Jin Lee, In Park, Gwang Young Sung, Dong-Jin Kim, Jong-Ho Kim
Large to massive rotator cuff tears are challenging to repair, although there are several options for dealing with them. Among them, superior capsular reconstruction was recently introduced as an effective procedure for retaining the static stability of the shoulder joint and preventing the progression to cuff tear arthropathy. The purpose of this technique-based article is to describe a surgical option, called arthroscopic in situ superior capsular reconstruction, for large to massive rotator cuff tears using the long head of the biceps tendon...
February 2018: Arthroscopy Techniques
Malte Holschen, Kai-Axel Witt, Jörn Steinbeck
Anterosuperior rotator cuff tears involve the subscapularis tendon, supraspinatus tendon, and rotator interval. The long head of the biceps is usually affected and unstable in these complex lesions. Arthroscopic repair of anterosuperior rotator cuff tears often consists of 2 different procedures. Whereas the subscapularis tendon is reconstructed under intra-articular visualization, the supraspinatus tendon is reconstructed under extra-articular visualization. The rotator interval is often sacrificed to improve visualization and instrumentation...
February 2018: Arthroscopy Techniques
Philippe Collin, Alexandre Lädermann
Anteroinferior glenohumeral instability can be treated by variants of the Bankart repair, remplissage , and the Latarjet procedure, although all options remain associated with complications, including recurrence, stiffness, persistent pain, apprehension, and dislocation arthropathy. The authors therefore thought of a concept of dynamic anterior stabilization to treat anteroinferior glenohumeral instability by transferring the long head of the biceps within a subscapularis split to the anterior glenoid margin, thereby creating a "sling effect" by using a conservative technique...
January 2018: Arthroscopy Techniques
Katsuaki Kanbe
BACKGROUND: The purpose of this study was to investigate the long-term clinical outcome and its related factors regarding the severity of adhesion of CH ligament over long head of biceps (LHB) after shoulder arthroscopic capsular release for frozen shoulder with technical points in 255 patients. METHODS: We performed arthroscopic capsular release for frozen shoulder in 267 shoulders of 255 patients, 112 males and 143 females, with mean age of 56.39 years, mean disease duration periods of 0...
March 16, 2018: Journal of Orthopaedic Surgery and Research
Tong-Hsien Chow, Yih-Shyuan Chen, Jia-Chang Wang
BACKGROUND: Plantar pressure measurement is effective for assessing plantar loading and can be applied to evaluating foot performance. We sought to explore the characteristics of plantar pressures in elite sprinters and recreational runners during static standing and walking. METHODS: Arch index (AI) values, regional plantar pressure distributions (PPDs), and footprint characteristics were examined in 80 elite sprinters and 90 recreational runners using an optical plantar pressure measurement system...
January 2018: Journal of the American Podiatric Medical Association
Sangsoo Kim, JongHoo Choo, Sungbum Ju
[Purpose] The purpose of this study is to examine the effect of aroma stimulation during isotonic exercise on the rating of perceived exertion (RPE) and the blood fatigue factors of athletes who have patellofemoral pain syndrome (PFPS). [Subjects and Methods] The research subjects were seven athletes in their twenties who suffer from PFPS. They were divided into a control group and an aroma stimulation group and performed isotonic exercises repeatedly. After exercising, the RPE and blood fatigue factors, including creatine phosphokinase (CPK), lactate dehydrogenase (LDH), and ammonia, were measured through blood sampling...
February 2018: Journal of Physical Therapy Science
X Clement, F Baldairon, P Clavert, J-F Kempf
No abstract text is available yet for this article.
March 12, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
Jonathan S Howard, Cherilyn N McLester, Thomas W Evans, John R McLester, Jimmy P Calloway
The PhysioFlow™ is a piece of equipment that uses bioimpedance cardiography to measure central hemodynamics. The purpose of this research was to explore the novel approach of monitoring central hemodynamics during free weight resistance exercise using bioimpedance cardiography throughout a 5 repetition maximum (5RM). Thirty participants ranging from beginner to advanced lifters (16 males and 14 females) completed a 5RM for back squat, seated push press, and bicep curl while connected to the PhysioFlow™ to assess the response of heart rate (HR), stroke volume (SV), cardiac output (Q), and ejection fraction (EF)...
2018: International Journal of Exercise Science
Naoki Kikuchi, Koichi Nakazato
Aim: To investigate the effect of push-up training with a similar load of to 40% of 1- repetition maximumal (1RM) bench press on muscle hypertrophy and strength gain in men. Methods: Eighteen male participants (age, 20.2 ± 0.73 years, range: 19-22 years, height: 169.8 ± 4.4 cm, weight: 64.5 ± 4.7 kg) were randomly assigned to one of two experimental groups: bench press at 40%1RM (bench-press group, n = 9) or push-ups with position adjusted (e.g. kneeling) to the same load of bench-press 40%1RM (push-up group, n = 9), performed twice per week for 8 weeks...
June 2017: Journal of Exercise Science and Fitness
Mak Wai Keong, Denny Lie Tijauw Tjoen
INTRODUCTION: Rotator cuff (RC) tears are common and a frequent cause of dysfunction in the shoulder, especially with progression of age. Biceps pathology occurs concomitantly and its relationship with RC tears has been well described. However, the study of biceps intervention affecting outcomes of RC repair is limited. We aim to study the effect of biceps tenotomy in RC repair after matching for cuff tear size. METHODS: We collected data of 24 consecutive patients undergoing RC repair and biceps tenotomy and matched them with patients undergoing RC repair only ( n = 24)...
January 2018: Journal of Orthopaedic Surgery
Olanike Abosede Olutekunbi, Adaobi Uzoamaka Solarin, Idowu Odunayo Senbanjo, Elizabeth Aruma Disu, Olisamedua Fidelis Njokanma
Skin fold thickness (SFT) measurement is a reliable, cheap, simple, noninvasive method of body fat estimation at all ages including the neonatal period. Objective . To determine reference values of biceps, triceps, subscapular, and suprailiac skinfold thickness measurements in term Nigerian newborns. Method . A prospective cross-sectional study over a six-month period (Dec 2010-May 2011) was carried out on term and healthy neonates delivered between 37 and 41 weeks. The anthropometric measurements were taken within the first 48 hours of life including the skinfold thickness...
2018: International Journal of Pediatrics
Steffi L Colyer, Polly M McGuigan
Textile electromyography (EMG) electrodes embedded in clothing allow muscle excitation to be recorded in previously inaccessible settings; however, their ability to accurately and reliably measure EMG during dynamic tasks remains largely unexplored. To quantify the validity and reliability of textile electrodes, 16 recreationally active males completed two identical testing sessions, within which three functional movements (run, cycle and squat) were performed twice: once wearing EMG shorts (measuring quadriceps, hamstrings and gluteals myoelectric activity) and once with surface EMG electrodes attached to the vastus lateralis, biceps femoris and gluteus maximus...
March 2018: Journal of Sports Science & Medicine
Brad Jon Schoenfeld, Andrew Vigotsky, Bret Contreras, Sheona Golden, Andrew Alto, Rachel Larson, Nick Winkelman, Antonio Paoli
The purpose of this study was to investigate the effects of using an internal versus external focus of attention during resistance training on muscular adaptations. Thirty untrained college-aged men were randomly assigned to an internal focus group (INTERNAL) that focused on contracting the target muscle during training (n = 15) or an external focus group (EXTERNAL) that focused on the outcome of the lift (n = 15). Training for both routines consisted of 3 weekly sessions performed on non-consecutive days for 8 weeks...
March 13, 2018: European Journal of Sport Science
Xiaopeng Guo, Lu Gao, Xiaodong Shi, Hailong Li, Qiang Wang, Zihao Wang, Wei Chen, Bing Xing
Objective: To investigate the preoperative body composition, metabolic characteristics, and postoperative changes in patients with active acromegaly and analyze the effects of gender and age. Methods: We included 36 patients with untreated acromegaly and 37 patients with nonfunctional pituitary adenomas. Adipose tissue (AT), the visceral fat index (VFI), sclerotin, protein, skeletal muscle, total body water (TBW), intracellular water (ICW), and extracellular water (ECW) were measured using bioelectrical impedance analysis (BIA)...
2018: International Journal of Endocrinology
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