Read by QxMD icon Read

Rotate cuff

David Charles Ackland, Dale Lee Robinson, Adam Wilkosz, Wen Wu, Martin Richardson, Peter Lee, Kwong Ming Tse
Rotator cuff tears are known to affect clinical outcome of reverse total shoulder arthroplasty (RSA). This study aimed to use computational modelling to quantify the effect of rotator cuff tear severity on muscle and joint forces after RSA, as well as stresses at the glenosphere, base-plate, fixation screws, scapula, and humeral components. A multi-body musculoskeletal model of the glenohumeral joint was developed comprising the scapula, humerus and 9 major upper limb muscles. Simulations of abduction and flexion were performed after RSA with the intact rotator cuff and tears to (i) supraspinatus (ii) supraspinatus and infraspinatus (iii) supraspinatus, infraspinatus and subscapularis...
October 16, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
Jeffrey Jancuska, John Matthews, Tyler Miller, Melissa A Kluczynski, Leslie J Bisson
Background: The number of systematic reviews and meta-analyses published on the rotator cuff (RC) has increased markedly. Purpose: To quantify the number of systematic reviews and meta-analyses published on the RC and to provide a qualitative summary of the literature. Study Design: Systematic review; Level of evidence, 4. Methods: A systematic search for all systematic reviews and meta-analyses pertaining to the RC published between January 2007 and September 2017 was performed with PubMed, MEDLINE, and the Cochrane Database of Systematic Reviews...
September 2018: Orthopaedic Journal of Sports Medicine
Sungwook Choi, Taejung Kim, Yong Suk Kwon, Hyunseong Kang
INTRODUCTION: To determine whether the placement of an interscalene brachial plexus block (IBPB) with general anaesthesia before shoulder arthroscopy would be effective in establishing a clear visual field and in shortening the surgical procedure. METHOD: This prospective randomized control trial study included 152 patients who had undergone arthroscopic rotator cuff repair. Group A received IBPB and group B did not receive IBPB. A visual clarity scale (VCS) was determined by arthroscopic visualization...
October 15, 2018: International Orthopaedics
Kathleen A Derwin, Sambit Sahoo, Alexander Zajichek, Gregory Strnad, Kurt P Spindler, Joseph P Iannotti, Eric T Ricchetti
BACKGROUND: The factors that associate with surgical decisions about repair technique and the number of suture anchors used in rotator cuff repair have not been previously investigated. This study investigated the extent to which patient, surgeon, and surgical factors associate with performing single-row vs. double-row repair technique and ultimately with the number of suture anchors used. METHODS: Our institution's prospective surgical cohort was queried for patients undergoing suture anchor repair of superior-posterior rotator cuff tendon tears between February 2015 and August 2017...
October 11, 2018: Journal of Shoulder and Elbow Surgery
Aylin Oral, Bülent Yazıcı, Cenk Eraslan, Zeynep Burak
Objective: Radioiodine is the most specific radionuclide for differentiated thyroid carcinoma (DTC) imaging. Despite its high specificity and sensitivity, false-positive I-131 uptake could be seen on whole body scan (WBS) that may lead to misdiagnosis and unnecessary radioiodine treatment. In this study, we aimed to present the I-131 WBS and concomitant single photon emission computed tomography/computed tomography (SPECT/CT) images of unexpected false-positive radioiodine uptake along with the patients’ clinical outcomes and the contribution of SPECT/CT imaging...
October 9, 2018: Molecular Imaging and Radionuclide Therapy
Jae Woo Shim, Chae Hyun Pang, Seul Ki Min, Jeung Yeol Jeong, Jae Chul Yoo
PURPOSE: To find novel measurement guidelines correlating with known tear size on two sagittal oblique views (en-face view and Y-view). METHODS: From a series of arthroscopic rotator cuff repair cases between 2012 and 2015, 50 patients were randomly selected from each of six subscapularis tear classifications. Due to rarity of type IV lesions, 272 shoulders were included. En-face view and Y-view in sagittal plane MRI were selected. Image evaluation was retrospectively performed by two researchers independently...
October 13, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Dominik Kaiser, Elias Bachmann, Christian Gerber, Dominik C Meyer
BACKGROUND: A large critical shoulder angle (CSA) >35° is associated with the development of rotator cuff tearing. Lateral acromioplasty (AP) has the theoretical potential to prevent rotator cuff tearing and/ or to reduce the risk of re-tears after repair. It is, however unclear which part of the lateral acromion has to be reduced to obtain the desired CSA. It was the purpose of this study to determine which part of the lateral acromion has to be resected to achieve a desired reduction of the CSA in a given individual...
October 13, 2018: BMC Musculoskeletal Disorders
Chris Hyunchul Jo, Seung Yeon Lee, Kang Sup Yoon, Sohee Oh, Sue Shin
BACKGROUND: Although platelet-rich plasma (PRP) is a popular option for rotator cuff disease, the underlying mechanism of PRP and its clinical indications are unclear. Further, some kinds of PRP might be detrimental to patients. Allogenic PRP prepared through a standardized process and fully characterized could eliminate variations in PRP as well as uncertainties regarding its use in each patient, which could provide clues about its mechanism of action and indications for its use. PURPOSE: To assess the effects of pure PRP on tenocytes with or without inflammation in an in vitro study and to evaluate the safety and efficacy of a fully characterized pure PRP injection in patients with rotator cuff disease in a clinical study...
October 12, 2018: American Journal of Sports Medicine
M Ceynowa, M Treder, F Dąbrowski, M Piotrowski, R Pankowski, M Rocławski
We present a case of a post-surgical complete dislocation after excessive proximal humeral shortening osteotomy performed in a patient operated on for atrophic non-union of a proximal humeral fracture. This complication has not been previously reported. The dislocation occurred due to extensive laxity of the soft tissue envelope, predominantly the deltoid muscle, as well as rotator cuff tear. The reconstructive procedurę consisted of vertical duplication of the capsule, reinforcement of the repair with coracoacromial ligament, tenodesis of the long head of the biceps tendon to the conjoined tendon and distal transfer of the deltoid muscle...
October 2018: Trauma Case Reports
Meghan E Vidt, Anthony C Santago, Anthony P Marsh, Eric J Hegedus, Christopher J Tuohy, Gary G Poehling, Michael T Freehill, Michael E Miller, Katherine R Saul
BACKGROUND: Rotator cuff tears in older individuals may result in decreased muscle forces and changes to force distribution across the glenohumeral joint. Reduced muscle forces may impact functional task performance, altering glenohumeral joint contact forces, potentially contributing to instability or joint damage risk. Our objective was to evaluate the influence of rotator cuff muscle force distribution on glenohumeral joint contact force during functional pull and axilla wash tasks using individualized computational models...
October 4, 2018: Clinical Biomechanics
Vasanth Seker, Lisa Hackett, Patrick H Lam, George A C Murrell
BACKGROUND: Massive and irreparable rotator cuff tears are difficult to manage surgically. One technique is to use a synthetic polytetrafluoroethylene (PTFE) patch to bridge the tear. However, there is little information regarding the outcomes of this procedure. PURPOSE: To determine the ≥2-year outcomes of patients for whom synthetic patches were used as tendon substitutes to bridge irreparable rotator cuff defects. STUDY DESIGN: Case series; Level of evidence, 4...
October 11, 2018: American Journal of Sports Medicine
Finosh G Thankam, Chandra S Boosani, Matthew F Dilisio, R Michael Gross, Devendra K Agrawal
Fatty infiltration and inflammation delay the healing responses and raise major concerns in the therapeutic management of rotator cuff tendon injuries (RCTI). Our evaluations showed the upregulation of 'metabolic check point' AMPK and inflammatory molecule, TREM-1 from shoulder biceps tendons collected from RCTI subjects. However, the epigenetic regulation of these biomolecules by miRNAs is largely unknown and it is likely that a deeper understanding of the mechanism of action can have therapeutic potential for RCTI...
October 10, 2018: Molecular and Cellular Biochemistry
Michael Khazzam, Stephen T Gates, Breann K Tisano, Nathan Kukowski
Background: Currently, clinical physical examination maneuvers alone provide variable reliability in diagnosing full-thickness rotator cuff tears (RCTs). Purpose: To assess the diagnostic accuracy of the scapular retraction test (SRT) to predict full-thickness RCTs. Study Design: Cohort study (diagnosis); Level of evidence, 2. Methods: A total of 331 patients were prospectively evaluated in this cohort study. SRT was performed to assess the status of the rotator cuff...
October 2018: Orthopaedic Journal of Sports Medicine
Colin P Murphy, Salvatore J Frangiamore, Sandeep Mannava, Anthony Sanchez, Evan Beiter, James M Whalen, Mark D Price, James P Bradley, Robert F LaPrade, Matthew T Provencher
Background: Posterior labral injuries have been recognized as a particularly significant clinical problem in collision and contact athletes. Purpose: To evaluate the effect that posterior labral tears have on early National Football League (NFL) performance based on position, associated injuries, and operative versus nonoperative management. Study Design: Cohort study; Level of evidence, 3. Methods: A retrospective review of all participants in the NFL Combine from 2009 to 2015 was performed using medical and imaging reports documented at the combine...
October 2018: Orthopaedic Journal of Sports Medicine
Dimitris Challoumas, Paul D Kirwan, Dmytro Borysov, Christopher Clifford, Michael McLean, Neal L Millar
OBJECTIVE: To produce a best evidence synthesis of the clinical effects of topical glyceryl trinitrate (GTN) in the treatment of tendinopathies. DESIGN: A systematic review of published randomised controlled trials (RCTs) of the use of GTN in patients with tendinopathy. DATA SOURCES: MEDLINE, Embase, Scopus and CINAHL from database inception to January 2018. METHODS: We examined RCTs comparing the effects of topical GTN with either placebo or other treatments on tendinopathy...
October 9, 2018: British Journal of Sports Medicine
Brandon J Erickson, Daniel D Bohl, Brian J Cole, Nikhil N Verma, Gregory Nicholson, Anthony A Romeo, Joshua D Harris
Reverse total shoulder arthroplasty (RTSA) is a common treatment for rotator cuff tear arthropathy. We performed a systematic review of all the RTSA literature to answer if we are treating the same patients with RTSA, across the world. A systematic review was registered with PROSPERO, the international prospective register of systematic reviews, and performed with Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines using 3 publicly available free databases. Therapeutic clinical outcome investigations reporting RTSA outcomes with levels of evidence I to IV were eligible for inclusion...
September 2018: American Journal of Orthopedics
David M Brogan, Fraser J Leversedge
BACKGROUND: Birth brachial plexus injury usually affects the upper trunks of the brachial plexus and can cause substantial loss of active shoulder external rotation and abduction. Due to the unbalanced rotational forces acting at the glenohumeral joint, the natural history of the condition involves progressive glenohumeral joint dysplasia with associated upper limb dysfunction. Surgical reconstruction methods have been described previously by Sever and L'Episcopo, and modified by Hoffer and Roper to release the adduction contracture and to restore external rotation and shoulder abduction...
October 7, 2018: Hand: Official Journal of the American Association for Hand Surgery
Gaëtan J Opsomer, Ashish Gupta, David L Haeni, Thomas Schubert, Etienne Lejeune, Kalojan Petkin, Jashint Maharaj, Laurent Lafosse
PURPOSE: To evaluate the arthroscopic double-layer lasso loop repair technique for delaminated posterosuperior rotator cuff tears. METHODS: Forty-one patients underwent arthroscopic rotator cuff repair of a delaminated posterosuperior rotator cuff tear by the double-layer lasso loop technique. Their preoperative and postoperative clinical and functional scores were compared to evaluate surgical outcomes. The prerequisite for inclusion was a minimum follow-up period of 2 years...
October 3, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
Pascal S Kälin, Florian A Huber, Qeumars M Hamie, Lydia S Issler, Nadja A Farshad-Amacker, Erika J Ulbrich, Roman Guggenberger
BACKGROUND: Quantitative MRI allows assessment of shoulder rotator cuff (RC) muscles by Dixon MR sequences with calculation of fractional fat content (FF%) maps and diffusion tensor imaging (DTI) including tractography. PURPOSE: To compare FF% and DTI derived parameters among visually intact RC muscles, to compare 2D with 3D DTI measurements and to establish normative values. STUDY TYPE: Prospective. SUBJECTS: Forty patients aged >18 years undergoing shoulder MR arthrography were included...
October 6, 2018: Journal of Magnetic Resonance Imaging: JMRI
Sung Young Lee, Hyeok Dong Lee, Young-Shin Cho, Seung Hoon Han
RATIONALE: Scapular winging is caused by neuromuscular dysfunction of shoulder stabilizer muscles. Clinically, a winged scapula can be easily diagnosed by typical physical findings. We report a case of atypical winged scapula caused by dorsal scapular neuropathy combined with suprascapular neuropathy, which has rarely been reported. PATIENT CONCERNS: A 25-year-old right-handed male was admitted to the clinic due to right arm weakness for 1 year. On physical examination, right winged scapula with medially rotated inferior angle was observed on flexion...
October 2018: Medicine (Baltimore)
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"