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https://www.readbyqxmd.com/read/28435576/a-new-technique-for-solving-tightrope-cutout-during-acromioclavicular-joint-fixation-a-case-report
#1
B W Ng, A F Abdullah, S Nadarajah
Acromioclavicular joint (ACJ) dissociation is one of the common injuries affecting adults. The stability of ACJ largely depends on the integrity of acromioclavicular ligament, coracoclavicular ligament, capsule, trapezius muscle and deltoid muscle. The injury has been classified by Rockwood into six types and treatment options can be guided by the classification. TightRope fixation is one of the many surgical procedures available to address acromioclavicular joint separation. It consists of tensioning of a no...
March 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28428911/early-rehabilitation-of-distal-radius-fractures-stabilized-by-volar-locking-plate-a-prospective-randomized-pilot-study
#2
Stefan Quadlbauer, Christoph Pezzei, Josef Jurkowitsch, Brigitta Kolmayr, Tina Keuchel, Daniel Simon, Thomas Hausner, Martin Leixnering
Background Distal radius fractures are very common and an increased incidence of 50% is estimated by 2030. Therefore, both operative and postsurgical treatment remains pertinent. Main aim in treating intra-articular fractures is to restore the articular surface by internal fixation and early mobilization (EM). Questions/Purposes The purpose of this study was to compare functional results between EM immediately after surgery and 5 weeks of immobilization (IM). Patients and Methods In a randomized prospective study, 30 patients with an isolated distal radius fracture were treated by open reduction and internal fixation using a single volar locking plate excluding bone graft...
May 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/28427871/arthroscopic-assisted-coracoclavicular-ligament-reconstruction-for-acute-acromioclavicular-dislocation-using-2-clavicular-and-1-coracoid-cortical-fixation-buttons-with-suture-tapes
#3
Sang-Jin Shin, Yoon Sang Jeon, Rag Gyu Kim
PURPOSE: To introduce an arthroscopically assisted coracoclavicular (CC) fixation technique using a cortical fixation button device and to evaluate the clinical and radiologic outcomes in patients with acute acromioclavicular (AC) dislocation who were treated with the technique. METHODS: Twenty-one consecutive patients with grade III and V acute AC dislocation who underwent arthroscopically assisted CC ligament reconstruction using a cortical fixation button device were prospectively enrolled...
April 17, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28414265/effectiveness-of-a-home-based-eccentric-exercise-program-on-the-torque-angle-relationship-of-the-shoulder-external-rotators-a-pilot-study
#4
Timothy L Uhl, Thomas Rice, Brianna Papotto, Timothy A Butterfield
CONTEXT: The role of the rotator cuff is to provide dynamic stability to the glenohumeral joint. Human and animal studies have identified sarcomerogenesis as an outcome of eccentric training indicated by more torque generation with the muscle in a lengthened position. OBJECTIVE: The authors hypothesized that a home-based eccentric-exercise program could increase the shoulder external rotators' eccentric strength at terminal internal rotation (IR). DESIGN: Prospective case series...
April 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28410878/efficacy-of-laronidase-therapy-in-patients-with-mucopolysaccharidosis-type-i-who-initiated-enzyme-replacement-therapy-in-adult-age-a-systematic-review-and-meta-analysis
#5
Jordi Pérez-López, Montserrat Morales-Conejo, Mónica López-Rodríguez, Álvaro Hermida-Ameijeiras, Marc Moltó-Abad
BACKGROUND: The efficacy of starting enzyme replacement therapy (ERT) in adults with Muchopolysaccharidosis Type I (MPS-I) is controversial. Evaluating the benefits reported by patients initiating ERT with laronidase at adult age might help physicians decide whether the use of ERT in these patients is worthwhile from a clinical point of view. OBJECTIVE: To assess every effectiveness variable modified in MPS-I patients who initiated laronidase at adult age. METHODS: A systematic search of the literature, from inception to July 2016, was conducted using MEDLINE, EMBASE, CENTRAL and LILACS to identify randomized trials or observational studies including ≥1 MPS-I patients with ERT initiated in adult age (≥18years) and evaluating ERT efficacy...
April 9, 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/28409136/functional-outcome-after-arthroscopic-repair-of-triple-shoulder-instability
#6
Glaydson Gomes Godinho, Flávio de Oliveira França, José Márcio Alves Freitas, Lander Braga Calais Correia Pinto, Carolina Lima Simionatto, Pedro Paulo Gomes Viana Filho
OBJECTIVE: To evaluate the functional outcomes of patients submitted to arthroscopic repair of triple labral lesion. METHODS: This was an analytical retrospective study of patients who underwent arthroscopic treatment of triple labral lesion from March 2005 to December 2014. Patients with at least one year of postoperative follow-up were included. A total of nine patients were evaluated. The mean age was 32.3 years and the dominant side was affected in five patients...
March 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28409104/multidirectional-shoulder-instability-arthroscopic-labral-augmentation
#7
Enrico Gervasi, Enrico Sebastiani, Alessandro Spicuzza
Capsulolabral augmentation is one of the most used arthroscopic techniques to address multidirectional instability of the shoulder. Given the thin and weak capsule seen in the affected patients, reconstruction in this subset of patients can be particularly challenging. This arthroscopic technique aims to reduce the capsular volume and deepen the glenoid socket through the creation of a particularly voluminous "bumper" along the glenoid bone. Increasing the depth of the glenoid facilitates a concavity-compression stabilizing effect and, therefore, shoulder stability, especially midrange stability...
February 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28406877/scapulothoracic-dissociation-evaluation-and-management
#8
Andrew M Choo, Patrick C Schottel, Andrew R Burgess
Scapulothoracic dissociation is a rare, potentially limb- and life-threatening injury of the shoulder girdle. The injury is characterized by lateral displacement of the scapula resulting from traumatic disruption of the scapulothoracic articulation. The typical physical examination findings consist of substantial swelling of the shoulder girdle, along with weakness, numbness, and pulselessness in the ipsilateral upper extremity. Radiographic evaluation includes measurement of the scapular index on a nonrotated chest radiograph and assessment for either a distracted clavicle fracture or a disrupted acromioclavicular or sternoclavicular joint...
May 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28400885/the-purse-string-technique-for-shoulder-stabilization-description-of-the-technique-long-term-results-and-literature-review
#9
REVIEW
Georgios Arealis, Joana Bento Rodrigues, Natalie Hope, Ofer Levy
BACKGROUND: Over the last 2 decades arthroscopic stabilization and Bankart repair has gained popularity due to the advances in materials and surgical techniques. Results of arthroscopic stabilization have been similar to open without the risks of it. The number of anchors used has been suggested to be very important in "spot-weld" arthroscopic stabilization however the "purse-string" technique (PST) can achieve similar results using only one anchor. We describe technique and long term results from using the PST and search the literature for other papers regarding PST...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28393680/wheeled-assistive-device-for-load-carriage-the-effects-on-human-gait-and-biomechanics
#10
Itay Ketko, Meir Plotnik, Ran Yanovich, Amit Gefen, Yuval Heled
Soldiers are often required to carry loads which impose biomechanical strain on the human body. This can adversely affect physical performances. Recently, wheel-based devices (WBD) were designed to reduce the load on the soldier. In the present study, a prototype of this newly developed WBD was evaluated. Thirteen volunteers performed three exercise protocols on a treadmill as follows: (1) no load; (2) carrying 40% of their bodyweight with a backpack or; (3) with the WBD. Data acquisition included: gait parameters, vertical ground reaction forces (VGRF) and contact pressure acting on the shoulder...
April 10, 2017: Ergonomics
https://www.readbyqxmd.com/read/28384005/outcomes-after-arthroscopic-bankart-repair-patients-with-first-time-versus-recurrent-dislocations
#11
Tyler Marshall, Jose Vega, Marcelo Siqueira, Robert Cagle, Jonathan D Gelber, Paul Saluan
BACKGROUND: The young athletic population makes up the largest portion of shoulder instability and, when treated nonoperatively, has a recurrent dislocation rate as high as 71%. It is unknown how the outcomes of those who have a recurrent dislocation are affected versus those who have a stabilization procedure after a first-time dislocation. PURPOSE: To report the postoperative outcomes of patients with first-time dislocations versus patients with recurrent dislocations before surgery...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28373938/arthroscopic-acromioclavicular-joint-reconstruction-using-knotless-coracoclavicular-fixation-and-soft-tissue-anatomic-coracoclavicular-ligament-reconstruction
#12
Travis J Menge, Dimitri S Tahal, J Christoph Katthagen, Peter J Millett
Acromioclavicular joint injuries are one of the most common shoulder injuries, and there are a variety of treatment options. Recently, there have been newer arthroscopic techniques that have addressed coracoid and clavicle fracture risk by using a knotted suture-button fixation through a single, small bone tunnel with additional looped soft-tissue graft stabilization. Although clinical outcomes have been good to excellent, there have still been instances of knot and hardware irritation. The described technique builds on the latest advances and achieves an anatomic coracoclavicular (CC) reconstruction through a single knotless CC fixation device with additional soft-tissue allograft reconstruction of the CC ligaments...
February 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28372964/glenoid-bone-grafting-in-primary-reverse-total-shoulder-arthroplasty
#13
Lukas Ernstbrunner, Jean-David Werthel, Eric Wagner, Taku Hatta, John W Sperling, Robert H Cofield
BACKGROUND: Severe glenoid bone loss remains a challenge in patients requiring shoulder arthroplasty and may necessitate glenoid bone grafting. The purpose of this study was to determine results, complications, and rates of failure of glenoid bone grafting in primary reverse shoulder arthroplasty. METHODS: Forty-one shoulders that underwent primary reverse arthroplasty between 2006 and 2013 with a minimum follow-up of 2 years (mean, 2.8 years; range, 2-6 years) were reviewed...
March 31, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28370538/shoulder-position-sense-in-volleyball-players-with-infraspinatus-atrophy-secondary-to-suprascapular-nerve-neuropathy
#14
Samuele Contemori, Andrea Biscarini
Isolated infraspinatus atrophy (IIA) is a common condition among overhead-activity athletes, which affects the hitting shoulder and is caused by suprascapular nerve injury. Since the suprascapular nerve is a mixed nerve, such damage could lead to reduced afferent proprioceptive information and impaired shoulder sensorimotor control. This study aims to evaluate the proprioception of the shoulder with IIA, through the assessment of shoulder position sense. The shoulder position sense was assessed in 24 professional volleyball players (12 players with IIA, and 12 healthy players) with a blind dynamic shoulder repositioning test (all participants were blindfolded during the test)...
March 29, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28366855/physicochemical-properties-and-cell-based-bioactivity-of-pu-erh-tea-polysaccharide-conjugates
#15
Xiao-Qiang Chen, Zhi-Fa Zhang, Zhi-Ming Gao, Yi Huang, Zheng-Qi Wu
Polysaccharide conjugates were prepared from Pu'erh tea and fractionated by DEAE-cellulose DE-52 column chromatography to yield one unexplored polysaccharide-conjugate fraction termed TPC-P with a molecular weight of 251200Da. DVS (dynamic vapour sorption) result discovered that the humidity condition of long-term preservation for TPC-P is below 70% RH. Although it contained proteins, TPC-P could not bind to the Coomassie Brilliant Blue dyes G250 and R250. The "shoulder-shaped" ultroviolet absorption peak in TPC-P UV-vis scanning spectum ascribe theabrownins that inevitably adsorbed the polysaccharide conjugate...
March 30, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28361184/impact-of-fiber-structure-on-the-material-stability-and-rupture-mechanisms-of-coronary-atherosclerotic-plaques
#16
Graeham R Douglas, Adam J Brown, Jonathan H Gillard, Martin R Bennett, Michael P F Sutcliffe, Zhongzhao Teng
The rupture of an atherosclerotic plaque in the coronary circulation remains the main cause of heart attack. As a fiber-oriented structure, the fiber structure, in particular in the fibrous cap (FC), may affect both loading and material strength in the plaque. However, the role of fiber orientation and dispersion in plaque rupture is unclear. Local orientation and dispersion of fibers were calculated for the shoulder regions, mid FC, and regions with intimal thickening (IT) from histological images of 16 human coronary atherosclerotic lesions...
March 30, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28361016/prevention-and-management-of-post-instability-glenohumeral-arthropathy
#17
REVIEW
Brian R Waterman, Kelly G Kilcoyne, Stephen A Parada, Josef K Eichinger
Post-instability arthropathy may commonly develop in high-risk patients with a history of recurrent glenohumeral instability, both with and without surgical stabilization. Classically related to anterior shoulder instability, the incidence and rates of arthritic progression may vary widely. Radiographic arthritic changes may be present in up to two-thirds of patients after primary Bankart repair and 30% after Latarjet procedure, with increasing rates associated with recurrent dislocation history, prominent implant position, non-anatomic reconstruction, and/or lateralized bone graft placement...
March 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28359697/a-comparison-of-onlay-versus-inlay-glenoid-component-loosening-in-total-shoulder-arthroplasty
#18
Jeffrey R Gagliano, Sarah M Helms, Gregory P Colbath, Breanne T Przestrzelski, Richard J Hawkins, John D DesJardins
BACKGROUND: Glenoid component loosening is common in total shoulder arthroplasty (TSA), often resulting from the mechanical interaction of glenohumeral components. This cadaveric study was performed to evaluate and to compare commercially available onlay and inlay glenoid prosthetic designs with respect to loading characteristics and loosening. METHODS: Sixteen prescreened cadaveric shoulders (8 matched pairs) underwent either onlay or inlay TSA. We created a custom glenohumeral loading model and used cycles of 5 mm anterior-posterior humeral translation to simulate a rocking-horse loosening mechanism for all testing...
March 27, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28359695/use-of-a-shorter-humeral-stem-in-revision-reverse-shoulder-arthroplasty
#19
Eric R Wagner, Joseph M Statz, Matthew T Houdek, Robert H Cofield, Joaquin Sánchez-Sotelo, John W Sperling
BACKGROUND: The purpose of this study was to examine the outcomes of revision reverse arthroplasty using short bone-preserving humeral components in revising a long-stemmed component. METHODS: During a 7-year period, 39 patients who underwent revision reverse shoulder arthroplasty using the long to short humeral component technique were included. The mean age was 72 years. Prior implants used in the primary setting included anatomic (n = 26), hemiarthroplasty (n = 11), and reverse (n = 2)...
March 27, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28353301/anatomical-structure-of-the-coracohumeral-ligament-and-its-effect-on-shoulder-joint-stability
#20
Chao Sun, Bin Zhong, Zhaoxun Pan, Dekai Du, Xiaojun Min
BACKGROUND: In this study, coracohumeral ligament (CHL) specimens were carefully dissected to observe its length, width, thickness and tension at different positions of the shoulder joint, thereby elucidating its effects on shoulder joint stability. MATERIALS AND METHODS: Fresh frozen shoulder joints from 40 normal adult cadaveric specimens were dissected to reveal the CHL. With the shoulder joints placed at different positions, the length of the CHL and the width and thickness of the middle part of the ligament were measured...
March 29, 2017: Folia Morphologica (Warsz)
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