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Impingement test

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https://www.readbyqxmd.com/read/28302429/does-bony-regrowth-occur-after-arthroscopic-femoroplasty-in-a-group-of-young-adolescents-femoroplasty-regrowth-in-adolescents
#1
Itay Perets, Asheesh Gupta, Edwin O Chaharbakhshi, Lyall Ashberg, David E Hartigan, Mary R Close, Benjamin G Domb
PURPOSE: To evaluate femoral head-neck bone regrowth and PROs in skeletally immature patients that underwent arthroscopic femoroplasties over a minimum 2-year period. METHODS: Eleven skeletally immature hips (10 patients) with open femoral head physes underwent femoroplasty between October 2008 and November 2013. Inclusion criteria were minimum 2-year follow-up with patient-reported outcomes (PROs) and radiographs preoperatively, at 2 weeks, and at a minimum of 2 years postoperatively...
March 13, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28296814/pedicle-screw-safety-how-much-anterior-breach-is-safe-a-cadaveric-and-ct-based-study
#2
Vishal Sarwahi, Monica Payares, Rachel Gecelter, Stephen Wendolowski, Kathleen Maguire, Dan Wang, Beverly Thornhill, Terry Amaral
STUDY DESIGN: Clinical retrospective chart review and basic science study OBJECTIVES.: To determine the safety limits of an anterior/anterorolateral misplaced pedicle screw on CT scan in spinal deformity. SUMMARY OF BACKGROUND DATA: While the limits of medial breaches (<4 mm) are known, the safe limits for anterior/anterolateral breaches in spine deformity are not yet defined. METHODS: This study had two parts. In part I, post-operative CT scans of 165 patients operated on for spine deformity were reviewed for screw misplacement (2800 screws)...
March 14, 2017: Spine
https://www.readbyqxmd.com/read/28271369/important-clinical-descriptors-to-include-in-the-examination-and-assessment-of-patients-with-femoroacetabular-impingement-syndrome-an-international-and-multi-disciplinary-delphi-survey
#3
M P Reiman, K Thorborg, K Covington, C E Cook, P Hölmich
PURPOSE: Determine which examination findings are key clinical descriptors of femoroacetabular impingement syndrome (FAIS) through use of an international, multi-disciplinary expert panel. METHODS: A three-round Delphi survey utilizing an international, multi-disciplinary expert panel operationally defined from international publications and presentations was utilized. RESULTS: All six domains (subjective examination, patient-reported outcome measures, physical examination, special tests, physical performance measures, and diagnostic imaging) had at least one descriptor with 75% consensus agreement for diagnosis and assessment of FAIS...
March 7, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28269573/pose-measurement-of-anterior-pelvic-plane-based-on-inertial-measurement-unit-in-total-hip-replacement-surgeries
#4
Zhe Cao, Shaojie Su, Hong Chen, Hao Tang, Yixin Zhou, Zhihua Wang
In Total Hip Replacement (THR), inaccurate measurement of Anterior Pelvic Plane (APP), which is usually used as a reference plane, will lead to malposition of the acetabular prosthesis. As a result, the risk of impingement, dislocation and wear will increase and the safe range of motion will be limited. In order to acquire the accurate pose of APP, a measurement system is designed in this paper, which includes two parts: one is used to estimate the initial pose of APP and the other is used to trail dynamic motion of APP...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28267909/-functional-evaluation-of-the-supraspinatus-tendon-repair-comparing-mini-open-and-open-techniques
#5
C R Mejía-Salazar, M Sierra-Pérez, M Ruiz-Suárez
OBJECTIVE: To compare two surgical techniques to address the painful shoulder syndrome with partial or total supraspinous tendon tear. METHODS: Patients with a diagnosis of complete supraspinous tendon tear who required surgical repair and subacromial decompression. One group was treated with acromioplasty and tendon plasty using an open approach (G1), and the second one underwent arthroscopy with tendon plasty using a minimally-invasive approach (G2). The surgical approach was not decided at random, but was based on the surgeons preference...
July 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28266924/an-evolution-based-strategy-for-engineering-allosteric-regulation
#6
David Pincus, Orna Resnekov, Kimberly Reynolds
Allosteric regulation provides a way to control protein activity at the time scale of milliseconds to seconds inside the cell. An ability to engineer synthetic allosteric systems would be of practical utility for the development of novel biosensors, creation of synthetic cell signaling pathways, and design of small molecule pharmaceuticals with regulatory impact. To this end, we outline a general approach - termed Rational Engineering of Allostery at Conserved Hotspots (REACH) - to introduce novel regulation into a protein of interest by exploiting latent allostery that has been hard-wired by evolution into its structure...
March 6, 2017: Physical Biology
https://www.readbyqxmd.com/read/28259463/properties-of-the-cartilage-layer-from-the-cam-type-hip-impingement-deformity
#7
Andrew D Speirs, Paul E Beaulé, Adrian Huang, Hanspeter Frei
Femoro-acetabular impingement (FAI) is associated with significant acetabular cartilage damage and degenerative arthritis. To understand the contact stress and thus biomechanical mechanisms that may contribute to degeneration, the material behaviour of the cartilage layer is required. The objective of this study is to determine the fibril-reinforced poroelastic properties and composition of cartilage from cam deformities and to compare to those of normal cartilage. Patients undergoing surgical treatment of a symptomatic cam FAI deformity were recruited from the clinical practice of one of the authors...
February 21, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28249855/physical-examination-of-the-elbow-what-is-the-evidence-a-systematic-literature-review
#8
REVIEW
Elisa L Zwerus, Matthijs P Somford, François Maissan, Jelle Heisen, Denise Eygendaal, Michel Pj van den Bekerom
OBJECTIVE: Primary to provide an overview of diagnostic accuracy for clinical tests for common elbow (sport) injuries, secondary accompanied by reproducible instructions to perform these tests. DESIGN: A systematic literature review according to the PRISMA statement. DATA SOURCES: A comprehensive literature search was performed in MEDLINE via PubMed and EMBASE. ELIGIBILITY CRITERIA: We included studies reporting diagnostic accuracy and a description on the performance for elbow tests, targeting the following conditions: distal biceps rupture, triceps rupture, posteromedial impingement, medial collateral ligament (MCL) insufficiency, posterolateral rotatory instability (PLRI), lateral epicondylitis and medial epicondylitis...
March 1, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28245972/static-and-dynamic-shoulder-imaging-to-predict-initial-effectiveness-and-recurrence-after-ultrasound-guided-subacromial-corticosteroid-injections
#9
Ke-Vin Chang, Wei-Ting Wu, Der-Sheng Han, Levent Özçakar
OBJECTIVE: To explore factors contributing to initial effectiveness and recurrence after ultrasound (US)-guided subacromial corticosteroid injections by assessing clinical measurements as well as static and dynamic shoulder US images. DESIGN: Retrospective cohort study. SETTING: Rehabilitation outpatient clinic. PARTICIPANTS: Adults with shoulder pain referred for injection therapy. INTERVENTIONS: US-guided subacromial corticosteroid injection...
February 25, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28244926/biomechanical-evaluation-of-the-depth-of-resection-during-femoral-neck-osteoplasty-for-anterior-impingement-following-slipped-capital-femoral-epiphysis
#10
Kevin M Dale, Geoffrey T Burns, Ying Li
BACKGROUND: Femoroacetabular impingement as a result of slipped capital femoral epiphysis (SCFE) has been treated traditionally with a proximal femoral osteotomy, but open and arthroscopic femoral osteoplasty is becoming increasingly popular. Cam lesions result from excess bone primarily at the anterolateral femoral head-neck junction. SCFEs result from posterior and inferior slippage of the femoral epiphysis, causing the metaphysis to move anteriorly. This study's purpose was to compare fourth-generation sawbones standard femurs with SCFE femurs to determine whether bone resection from the anterior metaphysis results in similar biomechanical properties...
February 27, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28227828/pose-measurement-of-anterior-pelvic-plane-based-on-inertial-measurement-unit-in-total-hip-replacement-surgeries
#11
Zhe Cao, Shaojie Su, Hong Chen, Hao Tang, Yixin Zhou, Zhihua Wang, Zhe Cao, Shaojie Su, Hong Chen, Hao Tang, Yixin Zhou, Zhihua Wang, Zhe Cao, Yixin Zhou, Hong Chen, Zhihua Wang, Hao Tang, Shaojie Su
In Total Hip Replacement (THR), inaccurate measurement of Anterior Pelvic Plane (APP), which is usually used as a reference plane, will lead to malposition of the acetabular prosthesis. As a result, the risk of impingement, dislocation and wear will increase and the safe range of motion will be limited. In order to acquire the accurate pose of APP, a measurement system is designed in this paper, which includes two parts: one is used to estimate the initial pose of APP and the other is used to trail dynamic motion of APP...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28219940/surgical-criteria-for-femoroacetabular-impingement-syndrome-a-scoping-review
#12
REVIEW
Scott Peters, Alisha Laing, Courtney Emerson, Kelsey Mutchler, Thomas Joyce, Kristian Thorborg, Per Hölmich, Michael Reiman
BACKGROUND: The purpose of this review was to analyse and report criteria used for open and arthroscopic surgical treatment of femoroacetabular impingement syndrome (FAIS). METHODS: A librarian-assisted computer search of Medline, CINAHL and Embase for studies related to criterion for FAIS surgery was used in this study. Inclusion criteria included studies with the primary purpose of surgery or surgical outcomes for treatment of FAIS with and without labral tear, and reporting criteria for FAIS surgery...
February 20, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28217425/short-term-effects-of-instrument-assisted-soft-tissue-mobilization-on-pain-free-range-of-motion-in-a-weightlifter-with-subacromial-pain-syndrome
#13
Joseph Paul Coviello, Rumit Singh Kakar, Timothy James Reynolds
BACKGROUND AND PURPOSE: While there is limited evidence supporting the use of soft tissue mobilization techniques for Subacromial Pain Syndrome (SAPS), synonymous with subacromial impingement syndrome, previous studies have reported successful outcomes using soft tissue mobilization as a treatment technique. The purpose of this case report is to document the results of Instrument-Assisted Soft Tissue Mobilization (IASTM) for the treatment of SAPS. CASE DESCRIPTION: Diagnosis was reached based on the subject's history, tenderness to palpation, and four out of five positive tests in the diagnostic cluster...
February 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28209916/diabetic-concentrations-of-metformin-inhibit-platelet-mediated-ovarian-cancer-cell-progression
#14
Rafaela Erices, Sofía Cubillos, Raúl Aravena, Felice Santoro, Monica Marquez, Renan Orellana, Carolina Ramírez, Pamela González, Patricia Fuenzalida, María Loreto Bravo, Bárbara Oliva, Sumie Kato, Carolina Ibañez, Jorge Brañes, Erasmo Bravo, Catalina Alonso, Karen García, Clemente Arab, Vicente A Torres, Alejandro S Godoy, Jaime Pereira, Galdo Bustos, Julio Cesar Cardenas, Mauricio A Cuello, Gareth I Owen
Clinical studies have suggested a survival benefit in ovarian cancer patients with type 2 diabetes mellitus taking metformin, however the mechanism by which diabetic concentrations of metformin could deliver this effect is still poorly understood. Platelets not only represent an important reservoir of growth factors and angiogenic regulators, they are also known to participate in the tumor microenvironment implicated in tumor growth and dissemination. Herein, we investigated if diabetic concentrations of metformin could impinge upon the previously reported observation that platelet induces an increase in the tube forming capacity of endothelial cells (angiogenesis) and upon ovarian cancer cell aggressiveness...
February 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28209142/accuracy-of-magnetic-resonance-studies-in-the-detection-of-chondral-and-labral-lesions-in-femoroacetabular-impingement-systematic-review-and-meta-analysis
#15
A M Saied, C Redant, M El-Batouty, M R El-Lakkany, W A El-Adl, J Anthonissen, R Verdonk, E A Audenaert
BACKGROUND: Several types of Magnetic resonance imaging (MRI) are commonly used in imaging of femoroacetabular impingement (FAI), however till now there are no clear protocols and recommendations for each type. The aim of this meta-analysis is to detect the accuracy of conventional magnetic resonance imaging (cMRI), direct magnetic resonance arthrography (dMRA) and indirect magnetic resonance arthrography (iMRA) in the diagnosis of chondral and labral lesions in femoroacetabular impingement (FAI)...
February 16, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28203594/foot-progression-angle-walking-test-a-dynamic-diagnostic-assessment-for-femoroacetabular-impingement-and-hip-instability
#16
Anil S Ranawat, Michael A Gaudiani, Pablo A Slullitel, James Satalich, Brian J Rebolledo
BACKGROUND: Determining an accurate clinical diagnosis for nonarthritic hip pain may be challenging, as symptoms related to femoroacetabular impingement (FAI) or hip instability can be difficult to elucidate with current testing methods. In addition, commonly utilized physical examination maneuvers are static and do not include a dynamic or weightbearing assessment to reproduce activity-related symptoms. Therefore, implementing a dynamic assessment for FAI and hip instability could help to improve diagnostic accuracy for routine clinical examinations of patients with nonarthritic hip pain...
January 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28194709/high-survivorship-and-little-osteoarthritis-at-10-year-followup-in-scfe-patients-treated-with-a-modified-dunn-procedure
#17
Kai Ziebarth, Milan Milosevic, Till D Lerch, Simon D Steppacher, Theddy Slongo, Klaus A Siebenrock
BACKGROUND: The modified Dunn procedure has the potential to restore the anatomy in hips with slipped capital femoral epiphyses (SCFE) while protecting the blood supply to the femoral head and minimizing secondary impingement deformities. However, there is controversy about the risks associated with the procedure and mid- to long-term data on clinical outcomes, reoperations, and complications are sparse. QUESTIONS/PURPOSES: Among patients treated with a modified Dunn procedure for SCFE, we report on (1) hip pain and function as measured by the Merle d'Aubigné and Postel score, Drehmann sign, anterior impingement test, limp, and ROM; (2) the cumulative survivorship at minimum 10-year followup with endpoints of osteoarthritis (OA) progression (at least one Tönnis grade), subsequent THA, or a Merle d'Aubigné and Postel score < 15; (3) radiographic anatomy of the proximal femur measured by slip angle, α angle, Klein line, and sphericity index; and (4) the risk of subsequent surgery and complications...
April 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28188359/in-vivo-analysis-of-coracoid-and-subacromial-shoulder-impingement-mechanism-during-clinical-examination
#18
Tim Leschinger, Christopher Wallraff, Dirk Müller, Matthias Hackenbroch, Henning Bovenschulte, Jan Siewe
BACKGROUND: Understanding the mechanisms of shoulder impingement created by clinical tests is crucial to accurately evaluate the condition. The objective of this study was to relate mechanisms of subacromial and coracoid impingement occurring in positions of the shoulder during clinical examination, in quantitative and qualitative terms. METHODS: A 1.0T open magnetic resonance imaging system was used in 18 female and 19 male subjects, to determine the distances between the humeral head and the acromion or coracoid, and contact with the rotator cuff (RC)...
February 11, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28169108/prevalence-and-clinical-significance-of-hypertrophic-labrum-in-non-dysplastic-hips
#19
Yong-Chan Ha, Young-Kyun Lee, Kyung-Hoi Koo, Ki-Bum Kwon, Sang-Heon Song
BACKGROUND: Hypertrophic labrum in dysplastic hip has been frequently reported and is known as limbus in developmental dysplasia of the hip. However, hypertrophic labrum without hip dysplasia has not been reported to date. The purpose of this study was to define hypertrophic labrum and to investigate the prevalence and clinical significance of an abnormally hypertrophic labrum in non-dysplastic hips. METHODS: Between 2007 and 2014, direct CT arthrography was performed in 464 patients (470 hips) who had chronic groin pain and positive impingement or Faber test...
February 3, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28162877/humeral-version-in-reverse-shoulder-arthroplasty-affects-impingement-in-activities-of-daily-living
#20
Andreas Kontaxis, Xiang Chen, Julien Berhouet, Daniel Choi, Timothy Wright, David M Dines, Russell F Warren, Lawrence V Gulotta
BACKGROUND: Impingement after reverse shoulder arthroplasty (RSA) has been correlated with implant design and surgical techniques. Previous studies suggested that humeral retroversion can reduce impingement and increase external rotation range of motion (ROM). The purpose of this study was to determine how humeral version affects impingement in activities of daily living (ADLs). MATERIALS AND METHODS: A single surgeon performed virtual RSA on 30 arthritic shoulders that were reconstructed from preoperative computed tomography scans...
February 2, 2017: Journal of Shoulder and Elbow Surgery
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