keyword
MENU ▼
Read by QxMD icon Read
search

Total shoulder arthroplasty

keyword
https://www.readbyqxmd.com/read/28087164/anatomic-study-and-electromyographic-analysis-of-the-teres-minor-muscle
#1
Junichiro Hamada, Akimoto Nimura, Kunio Yoshizaki, Keiichi Akita
BACKGROUND: The teres minor muscle is a focused topic on the treatment of massive rotator cuff tears and reverse total shoulder arthroplasty. Its precise anatomy and function have not been completely investigated. The purposes of this study were to anatomically investigate the muscle and analyze electromyographic (EMG) activities during shoulder motion. METHODS: This anatomic study used 20 shoulders from deceased donors (mean age, 75.0 years). EMG data were recorded from 10 healthy volunteers (mean age, 21...
January 10, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28075438/quantitative-anatomical-differences-in-the-shoulder
#2
Usman Ali Mohammed Syed, Daniel E Davis, Jia-Wei Ko, Brian K Lee, Daniel Huttman, Adam Seidl, Carl Deirmengian, Joseph A Abboud
This study explored the radiographic and anatomical differences in normal shoulders between men and women, as well as factors such as race, height, weight, and age. A total of 205 patients with documented normal anatomical radiographs comprised the study population. Five fellowship-trained orthopedic surgeon reviewers measured head diameter, humeral head size, head to tuberosity distance, greater tuberosity width, neck-shaft angle, surface-arc angle, glenoid neck length, and distance from the lateral acromion process to the greater tuberosity on anteroposterior radiographs with the shoulder in external rotation...
January 11, 2017: Orthopedics
https://www.readbyqxmd.com/read/28068966/glenoid-morphology-in-light-of-anatomical-and-reverse-total-shoulder-arthroplasty-a-dissection-and-3d-ct-based-study-in-male-and-female-body-donors
#3
Sandra Mathews, Marco Burkhard, Nabil Serrano, Karl Link, Martin Häusler, Nakita Frater, Ingeborg Franke, Helena Bischofberger, Florian M Buck, Dominic Gascho, Michael Thali, Steffen Serowy, Magdalena Müller-Gerbl, Gareth Harper, Ford Qureshi, Thomas Böni, Hans-Rudolf Bloch, Oliver Ullrich, Frank-Jakobus Rühli, Elisabeth Eppler
BACKGROUND: Placement of the glenoid baseplate is of paramount importance for the outcome of anatomical and reverse total shoulder arthroplasty. However, the database around glenoid size is poor, particularly regarding small scapulae, for example, in women and smaller individuals, and is derived from different methodological approaches. In this multimodality cadaver study, we systematically examined the glenoid using morphological and 3D-CT measurements. METHODS: Measurements of the glenoid and drill hole tunnel length for superior baseplate screw placement were recorded to define size of the glenoid and the distance to the scapular notch on cadaveric specimens...
January 10, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28064003/a-semi-automated-quantitative-ct-method-for-measuring-rotator-cuff-muscle-degeneration-in-shoulders-with-primary-osteoarthritis
#4
Alexandre Terrier, Julien Ston, Antoine Dewarrat, Fabio Becce, Alain Farron
BACKGROUND: Rotator cuff muscle degeneration is an important parameter to consider when planning shoulder arthroplasty. HYPOTHESIS: We hypothesized that rotator cuff muscle degeneration is correlated with scapulohumeral subluxation in patients planned for anatomical total shoulder arthroplasty (TSA). MATERIALS AND METHODS: We developed a semi-automated quantitative CT method to measure rotator cuff muscle degeneration, and retrospectively analyzed 107 preoperative shoulder CT scans of patients with primary osteoarthritis...
January 4, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28050640/is-the-humeral-stem-useful-in-anatomic-total-shoulder-arthroplasty
#5
Philippe Collin, Tetsu Matsukawa, Pascal Boileau, Ulrich Brunner, Gilles Walch
PURPOSE: Traditionally and since Neer, the humeral side of shoulder arthroplasty consisted of a stemmed component but the real need for stem fixation in total shoulder arthroplasty (TSA) has barely been investigated. The current study evaluated the clinical and radiological outcomes with a stemless TSA. METHODS: Forty-seven patients, 20 female and 27 male patients with an average age of 63, were selected in four orthopaedic centres during a four year period, and implanted with a humeral head prosthesis with a three-fin design and titanium coating...
January 3, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28034540/reverse-shoulder-arthroplasty-in-patients-younger-than-55-years-2-to-12-year-follow-up
#6
Randall J Otto, Rachel E Clark, Mark A Frankle
BACKGROUND: This study reports the outcomes of reverse shoulder arthroplasty (RSA) in patients younger than 55 years with midterm to long-term follow-up. METHODS: Sixty-seven patients (average age, 47.9 years; range, 21-54 years) were identified who underwent RSA with an average 62.3 months of follow-up (24-144 months). There were 35 patients (group 1) who had a failed arthroplasty and 32 patients (group 2) who underwent primary RSA. Clinical outcomes included the American Shoulder and Elbow Surgeons (ASES) score, Simple Shoulder Test (SST) score, and range of motion...
December 26, 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28032697/patient-specific-orthopaedic-implants
#7
REVIEW
Jack M Haglin, Adam E M Eltorai, Joseph A Gil, Stephen E Marcaccio, Juliana Botero-Hincapie, Alan H Daniels
Patient-specific orthopaedic implants are emerging as a clinically promising treatment option for a growing number of conditions to better match an individual's anatomy. Patient-specific implant (PSI) technology aims to reduce overall procedural costs, minimize surgical time, and maximize patient outcomes by achieving better biomechanical implant fit. With this commercially-available technology, computed tomography or magnetic resonance images can be used in conjunction with specialized computer programs to create preoperative patient-specific surgical plans and to develop custom cutting guides from 3-D reconstructed images of patient anatomy...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28029391/off-hour-surgery-among-orthopedic-subspecialties-at-an-urban-quaternary-care-level-1-trauma-center
#8
Amanda Lans, Stein J Janssen, David Ring
PURPOSE: We sought to determine and quantify which subspecialties of orthopedic surgeons are operating off hours in an urban, quaternary-care, level 1 trauma center. MATERIALS AND METHODS: We used our clinical registry to identify 43,211 orthopedic surgeries performed between January 2008 and December 2011. Our outcome measures were the number and proportion of off-hour surgeries performed as well as the number and proportion of off-hours per subspecialty. The denominators were the total number of surgeries and the total number of surgical hours worked per subspecialty...
October 28, 2016: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28024662/quantifying-the-competing-relationship-between-adduction-range-of-motion-and-baseplate-micromotion-with-lateralization-of-reverse-total-shoulder-arthroplasty
#9
Josie Elwell, Joseph Choi, Ryan Willing
Lateralizing the center of rotation (COR) of reverse total shoulder arthroplasty (rTSA) could improve functional outcomes and mitigate scapular notching, a commonly occurring complication of the procedure. However, resulting increases in torque at the bone-implant interface may negatively affect initial fixation of the glenoid-side component, especially if only two fixation screws can be placed. Shoulder-specific finite element (FE) models of four fresh-frozen cadaveric shoulders were constructed. Scapular geometry and material property distributions were derived from CT data...
November 29, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/28005111/instability-after-reverse-total-shoulder-arthroplasty-which-patients-dislocate
#10
Eric M Padegimas, Benjamin M Zmistowski, Camilo Restrepo, Joseph A Abboud, Mark D Lazarus, Matthew L Ramsey, Gerald R Williams, Surena Namdari
Given the increasing use of reverse total shoulder arthroplasty (RTSA), it is important to study the complications associated with this procedure. We conducted a study of the incidence, predisposing factors, and treatment of RTSA dislocations. Using our institutional database, we retrospectively searched for RTSAs performed between September 27, 2010 and December 31, 2013 and identified postoperative dislocations. Four hundred eighty-seven patients underwent 510 RTSAs (393 primary, 117 revision). Fourteen patients had 15 dislocations (5 in primary RTSAs, 10 in revision RTSAs)...
November 2016: American Journal of Orthopedics
https://www.readbyqxmd.com/read/27995555/corr-insights-%C3%A2-perioperative-risk-adjustment-for-total-shoulder-arthroplasty-are-simple-clinically-driven-models-sufficient
#11
Chris Peach
No abstract text is available yet for this article.
December 19, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27992683/yearly-trends-in-elective-shoulder-arthroplasty-2005-through-2013
#12
Mark T Dillon, Priscilla H Chan, Maria C S Inacio, Anshuman Singh, Edward H Yian, Ronald A Navarro
OBJECTIVE: The purposes of this study were to evaluate the (1) change in incidence rate of shoulder arthroplasty, the (2) utilization of shoulder arthroplasty for specific indications, and the (3) surgeon volume trends associated with these procedures between 2005 and 2013. METHODS: A population based cohort study was conducted using the over 7 million members of an integrated healthcare system in California. Shoulder arthroplasty cases performed between 2005 and 2013 were identified using a Shoulder Arthroplasty Registry...
December 19, 2016: Arthritis Care & Research
https://www.readbyqxmd.com/read/27984831/-total-joint-replacement-and-return-to-sports
#13
N Oehler, T Schmidt, A Niemeier
Background: An increasing number of physically active patients not only need to know if they will basically be able to engage in sports after undergoing arthroplasty. They also would like to know whether or not they will be able to resume their preoperative activity levels. This article aims to provide an overview of recent data regarding the following questions on hip, knee and shoulder arthroplasty: (1) What is the impact of physical activity on an endoprosthesis? (2) What level of sports can be achieved after an arthroplasty procedure? (3) What types of sport are recommended for patients with an endoprosthesis? Methods: PubMed-based review of the literature...
December 2016: Sportverletzung Sportschaden: Organ der Gesellschaft Für Orthopädisch-Traumatologische Sportmedizin
https://www.readbyqxmd.com/read/27939409/cost-effectiveness-of-arthroscopic-rotator-cuff-repair-versus-reverse-total-shoulder-arthroplasty-for-the-treatment-of-massive-rotator-cuff-tears-in-patients-with-pseudoparalysis-and-nonarthritic-shoulders
#14
Grant J Dornan, J Christoph Katthagen, Dimitri S Tahal, Maximilian Petri, Joshua A Greenspoon, Patrick J Denard, Stephen S Burkhart, Peter J Millett
PURPOSE: To determine the most cost-effective treatment strategy for patients with massive rotator cuff tears and pseudoparalysis of the shoulder without osteoarthritis of the glenohumeral joint (PP without OA). Specifically, we aimed to compare arthroscopic rotator cuff repair (ARCR) versus reverse total shoulder arthroplasty (RTSA) and investigate the effect of patient age on this decision. METHODS: A Markov decision model was used to compare 3 treatment strategies for addressing PP without OA: (1) ARCR with option to arthroscopically revise once, (2) ARCR with immediate conversion to RTSA on potential failure, and (3) primary RTSA...
December 6, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27933229/mid-term-shoulder-functional-and-quality-of-life-outcomes-after-shoulder-replacement-in-obese-patients
#15
Heather K Vincent, Aimee M Struk, Austin Reed, Thomas W Wright
BACKGROUND: Shoulder pain and loss of function are directly associated with obesity. QUESTIONS/PURPOSES: We hypothesized that significant interactions would exist between total shoulder arthroplasty (TSA) and reverse total shoulder arthroplasty (RSA) and obesity status on functional and quality of life (QOL) outcomes over the long term. Clinical and QOL outcomes (American Shoulder and Elbow Surgeons Evaluation form, Shoulder Pain and Disability Index, University of California at Los Angeles Shoulder Rating scale, Medical Outcomes Short Form 12 (SF-12), range of motion (ROM), and strength) were longitudinally compared in patients with low and high body mass index (BMI) after a TSA or a RSA...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27928662/predictors-of-medium-term-clinical-outcomes-after-total-shoulder-arthroplasty
#16
Tim Leschinger, Patric Raiss, Markus Loew, Felix Zeifang
PURPOSE: The study aims to measure the relationship of potential clinical and radiographic predictors and medium-term clinical outcomes after total shoulder arthroplasty in primary osteoarthritis. MATERIALS AND METHODS: In a prospective follow-up study, preoperatively collected clinical and radiographic variables were recorded in 103 patients with an average age of 66 years (range 37-83 years) to measure their influence on the clinical outcome by use of the Constant score...
December 7, 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/27925639/outcomes-following-arthroscopic-repair-of-posterior-labral-tears-in-patients-older-than-35-years
#17
Dexter K Bateman, Eric M Black, Mark D Lazarus, Joseph A Abboud
Although the results of arthroscopic management of posterior labral pathology in young athletes have been reported extensively in the literature, the clinical outcomes in older patients are unknown. This retrospective review included patients older than 35 years who underwent arthroscopic posterior labral repair. Functional outcome scores were collected, and subgroup analyses were performed to evaluate the impact of patient-specific factors. Forty-three patients met the inclusion criteria; average follow-up was 36...
December 7, 2016: Orthopedics
https://www.readbyqxmd.com/read/27921129/-shoulder-endoprosthesis-in-the-elderly-hemiarthroplasty-or-total-shoulder-arthroplasty-anatomic-or-reverse
#18
J Kircher
Implantation of reverse shoulder endoprostheses is becoming more popular for elderly patients besides the well-established standard anatomic endoprostheses. The reasons for this are the increased life expectancy, age-dependent degeneration of the rotator cuff leading to cuff tear arthropathy, posttraumatic disability after failed osteosynthesis and primary reverse fracture arthroplasty. Stemless implants are more frequently used for primary osteoarthritis with the bone quality being the limiting factor. Modern implant systems allow the stepwise extension from bone preserving primary implants to modular and convertible revision implants that allow a partial exchange of components...
December 5, 2016: Der Orthopäde
https://www.readbyqxmd.com/read/27914847/the-three-dimensional-glenohumeral-subluxation-index-in-primary-osteoarthritis-of-the-shoulder
#19
Matthijs Jacxsens, Alexander Van Tongel, Heath B Henninger, Robert Z Tashjian, Lieven De Wilde
BACKGROUND: Assessment of glenohumeral subluxation is essential in preoperative planning of total shoulder arthroplasty. The purpose of this study was to evaluate a 3-dimensional (3D) glenohumeral subluxation index (GHSI) in shoulders with primary osteoarthritis (OA) and its relationship with morbid glenoid retroversion. METHODS: The 3D computed tomography reconstructions of 120 healthy shoulders and 110 shoulders with primary glenohumeral arthritis (OA group), classified according to Walch's glenoid morphology, were analyzed...
November 30, 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27914844/the-july-effect-in-total-shoulder-arthroplasty
#20
Allison J Rao, Daniel D Bohl, Rachel M Frank, Gregory L Cvetanovich, Gregory P Nicholson, Anthony A Romeo
BACKGROUND: New medical doctors enter their residency fields in July, a time in the hospital in which patient morbidity and mortality rates are perceived to be higher. It remains controversial whether a "July effect" exists in different areas of medicine and surgery, including in orthopedic surgery. The purpose of this study is to test for the July effect in patients undergoing primary total shoulder arthroplasty (TSA). METHODS: Patients who underwent primary TSA from 2005-2012 were identified using the American College of Surgeons National Surgical Quality Improvement Program database...
November 30, 2016: Journal of Shoulder and Elbow Surgery
keyword
keyword
46674
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"