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Arthroscopy: the Journal of Arthroscopic & related Surgery

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https://www.readbyqxmd.com/read/28216289/biomechanical-comparison-of-fixed-loop-and-adjustable-loop-cortical-suspensory-devices-for-metaphyseal-femoral-sided-soft-tissue-graft-fixation-in-anatomic-anterior-cruciate-ligament-reconstruction-using-a-porcine-model
#1
Darin D Nye, W Ryan Mitchell, Wei Liu, Roger V Ostrander
PURPOSE: To compare the displacement, stiffness, and ultimate failure load of a fixed-loop cortical suspensory device with 2 adjustable-loop devices when positioned on metaphyseal bone. METHODS: Thirty devices (10 of each device) were positioned on the metaphyseal cortex of 30 porcine femora simulating anatomic anterior cruciate ligament femoral tunnel placement. Bovine tendons were used for soft tissue grafts, and the constructs were then cycled 1,000 times and pulled to failure, measuring displacement, stiffness, and failure load...
February 16, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28187903/the-influence-of-trocar-fenestration-and-volume-on-connective-tissue-progenitor-cells-stem-cells-in-arthroscopic-bone-marrow-aspiration-from-the-proximal-humerus
#2
Andreas Voss, Mary Beth McCarthy, Hardeep Singh, Knut Beitzel, Jessica DiVenere, Mark P Cote, Alexander R Hoberman, Michael Nowak, Andreas B Imhoff, Augustus D Mazzocca
PURPOSE: To evaluate the number of connective tissue progenitor cells (CTPs) and nucleated cells obtained during bone marrow aspiration (BMA) from the proximal humerus using either a fenestrated or a nonfenestrated trocar and determine differences in varying amounts of aspiration volume. The first hypothesis was that the number of CTPs extracted with the fenestrated trocar would be greater due to its potential to extract more cells through its fenestrations. The second hypothesis was that using consecutive aspirations with either trocar would provide a consistent number of CTPs and nucleated cells throughout the aspiration with no significant decrease of cells at the end...
February 7, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28162918/reliability-and-validity-of-the-arthroscopic-international-cartilage-repair-society-classification-system-correlation-with-histological-assessment-of-depth
#3
Tim Dwyer, C Ryan Martin, Rita Kendra, Corey Sermer, Jaskarndip Chahal, Darrell Ogilvie-Harris, Daniel Whelan, Lucas Murnaghan, Aaron Nauth, John Theodoropoulos
PURPOSE: To determine the interobserver reliability of the International Cartilage Repair Society (ICRS) grading system of chondral lesions in cadavers, to determine the intraobserver reliability of the ICRS grading system comparing arthroscopy and video assessment, and to compare the arthroscopic ICRS grading system with histological grading of lesion depth. METHODS: Eighteen lesions in 5 cadaveric knee specimens were arthroscopically graded by 7 fellowship-trained arthroscopic surgeons using the ICRS classification system...
February 2, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28162917/influence-of-preoperative-musculotendinous-junction-position-on-rotator-cuff-healing-after-double-row-repair
#4
Robert Z Tashjian, Gregory A Erickson, Richard J Robins, Yue Zhang, Robert T Burks, Patrick E Greis
PURPOSE: The primary purpose of this study was to determine the effect of the preoperative position of the musculotendinous junction (MTJ) on rotator cuff healing after double-row arthroscopic rotator cuff repair. A secondary purpose was to evaluate how tendon length and MTJ position change when the rotator cuff heals. METHODS: Preoperative and postoperative magnetic resonance imaging (MRI) scans of 42 patients undergoing arthroscopic double-row rotator cuff repair were reviewed...
February 2, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28159425/magnetic-resonance-imaging-evaluation-of-physeal-violation-in-adolescents-after-transphyseal-anterior-cruciate-ligament-reconstruction
#5
Joon-Ho Wang, Kang-Min Son, Dae-Hee Lee
PURPOSE: To quantify and compare the amount and location of physis violation of the distal femur and proximal tibia after transphyseal anterior cruciate ligament (ACL) reconstruction in skeletally immature patients. METHODS: This study included 19 patients with open physes of the distal femur and proximal tibia who underwent ACL reconstruction with tibialis anterior allografts. Physeal tunnel volume and location on the growth plate, as well as obliquity to the growth plate, were measured by 3-dimensional postoperative magnetic resonance imaging of the distal femur and proximal tibia...
January 31, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28132809/cyclic-and-load-to-failure-properties-of-all-suture-anchors-in-synthetic-acetabular-and-glenoid-cancellous-bone
#6
Nathan P Douglass, Anthony W Behn, Marc R Safran
PURPOSE: To evaluate the cyclic displacement, maximum load to failure, and failure mode of multiple all-suture anchors (ASAs) in 2 different densities of sawbones cancellous bone substitute. METHODS: Anchors tested included the Suturefix Ultra 1.7 mm, JuggerKnot 1.45 mm (No. 1 and No. 2 MaxBraid) and 2.9 mm, Y-Knot Flex 1.3 mm and 1.8 mm, Iconix 1, 2, 25, and 3, Q-Fix 1.8 mm, and Bioraptor 2.3 PK. The Bioraptor served as a non-all-suture-based control. Seven to eleven anchors were tested in both 20 and 30 pounds per cubic foot (pcf) test blocks that were chosen to simulate glenoid and acetabular cancellous bone, respectively...
January 26, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28130032/publication-rates-of-podium-presentation-abstracts-at-the-arthroscopy-association-of-north-america-annual-meetings-2004-2012
#7
Jason D Lehman, Benedict U Nwachukwu, Richard Ferraro, Brian J Rebolledo, Eric C Makhni, Nikhil N Verma, Lawrence V Gulotta
PURPOSE: To determine the publication rates of podium presentation abstracts at the Arthroscopy Association of North America (AANA) annual scientific meetings from 2004 to 2012. METHODS: A database of podium presentation abstracts at the annual meetings of the AANA was compiled. Abstract presentations that reached manuscript publication were determined by a PubMed search of the MEDLINE database and Google Scholar. The journal and publication date were then recorded for all identified published abstracts...
January 24, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28130031/comparison-between-intra-and-extra-articular-tension-of-the-graft-during-fixation-in-anterior-cruciate-ligament-reconstruction
#8
Yuichiro Nishizawa, Yuichi Hoshino, Kouki Nagamune, Daisuke Araki, Kanto Nagai, Masahiro Kurosaka, Ryosuke Kuroda
PURPOSE: To evaluate the tension deprivation through the tunnels with and without preconditioning at the time of fixation, and the influences of cyclic loading and pretensioning on graft tension in anatomic single bundle anterior cruciate ligament (ACL) reconstruction using a hamstring tendon. METHODS: Nine fresh-frozen cadaveric knees underwent anatomic ACL reconstruction using hamstring grafts. Each specimen was examined to ensure that there was no severe osteoarthritic change, ligament insufficiency, or torn menisci by manual and arthroscopic evaluation...
January 24, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28130030/biomarker-changes-in-anterior-cruciate-ligament-deficient-knees-compared-with-healthy-controls
#9
Daniel J Kaplan, Vanessa G Cuellar, Laith M Jazrawi, Eric J Strauss
PURPOSE: To establish how synovial fluid biomarker concentrations change in patients after anterior cruciate ligament (ACL) tears, with and without associated cartilage injury, with comparisons made to healthy controls. METHODS: Patients were prospectively enrolled between January 2013 and December 2014. Inclusion criteria included any patient undergoing knee arthroscopy. Patients with a confirmed ACL tear were allocated to either the ACL tear with cartilage injury group or the ACL tear without cartilage injury group based on intraoperative assessment...
January 24, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28117107/optimization-of-anteromedial-portal-femoral-tunnel-drilling-with-flexible-and-straight-reamers-in-anterior-cruciate-ligament-reconstruction-a%C3%A2-cadaveric-3-dimensional-computed-tomography%C3%A2-analysis
#10
Brian Forsythe, Michael J Collins, Thomas A Arns, William A Zuke, Michael Khair, Nikhil N Verma, Brian J Cole, Bernard R Bach, Nozomu Inoue
PURPOSE: To use 3-dimensional custom CAD technology to evaluate how knee flexion angle affects femoral tunnel length and distance to the posterior wall when using curved and straight guides for drilling through the anteromedial portal (AMP). METHODS: Six cadaveric knees were placed in an external fixator at various degrees of flexion (90°, 110°, 125°, and maximum 135° to 140°). Computed tomography scans were obtained at all flexion points for 3-dimensional point-cloud models...
January 20, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28111006/the-effect-of-early-range-of-motion-on-quality-of-life-clinical-outcome-and-repair-integrity-after-arthroscopic-rotator-cuff-repair
#11
Augustus D Mazzocca, Robert A Arciero, Kevin P Shea, John M Apostolakos, Olga Solovyova, Gregg Gomlinski, Karen E Wojcik, Vincent Tafuto, Harlan Stock, Mark P Cote
PURPOSE: To compare the effect of early versus delayed motion protocols on quality of life, clinical outcomes, and repair integrity in patients who have undergone arthroscopic single-tendon rotator cuff repair. METHODS: This was a prospective, randomized, investigator-blinded clinical trial. Seventy-three patients from a single surgeon's practice who underwent arthroscopic repair of a single-tendon rotator cuff tear were randomized to either an early motion protocol (starting 2 to 3 days after surgery) or a delayed motion protocol (starting 28 days after surgery)...
January 19, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28109644/fluid-extravasation-in-hip-arthroscopy-a-systematic-review
#12
REVIEW
Seper Ekhtiari, Chloe E Haldane, Darren de Sa, Nicole Simunovic, Olufemi R Ayeni
PURPOSE: The purpose of this systematic review was to (1) characterize cases of fluid extravasation during hip arthroscopy and explore common factors among them and (2) describe management strategies and outcomes of this complication. METHODS: The databases MEDLINE, EMBASE, and PubMed were searched and screened in duplicate. Data regarding patient demographics, fluid management, presentation, management, and outcomes were collected. Study quality was assessed in duplicate using the Methodological Index for Non-Randomized Studies Criteria...
January 18, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28110807/treatment-options-for-patellar-tendinopathy-a%C3%A2-systematic-review
#13
REVIEW
Joshua S Everhart, Devon Cole, John H Sojka, John D Higgins, Robert A Magnussen, Laura C Schmitt, David C Flanigan
PURPOSE: To compare the efficacy of common invasive and noninvasive patellar tendinopathy (PT) treatment strategies. METHODS: A systematic search was performed in PubMed, Google Scholar, CINAHL, UptoDate, Cochrane Reviews, and SPORTDiscus. Fifteen studies met the following inclusion criteria: (1) therapeutic outcome trial for PT, and (2) Victorian Institute of Sports Assessment was used to assess symptom severity at follow-up. Methodological quality and reporting bias were evaluated with a modified Coleman score and Begg's and Egger's tests of bias, respectively...
January 16, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28110806/can-surgical-trainees-achieve-arthroscopic-competence-at-the-end-of-training-programs-a-cross-sectional-study-highlighting-the-impact-of-working-time-directives
#14
Robert M Middleton, Austin Vo, Jamie Ferguson, Andrew Judge, Abtin Alvand, Andrew J Price, Jonathan L Rees
PURPOSE: To provide training guidance on procedure numbers by assessing how the number of previously performed arthroscopic procedures relate to both competent and expert performance in simulated arthroscopic shoulder tasks. METHODS: A cross-sectional study that assessed simulated shoulder arthroscopic performance was undertaken. A total of 45 participants of varying experience performed 2 validated tasks: a simple diagnostic task and a more complex Bankart labral repair task...
January 16, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28089497/biomechanical-comparison-of-standard-and-linked-single-row-rotator-cuff-repairs-in-a-human-cadaver-model
#15
Adam F Meisel, Heath B Henninger, F Alan Barber, Mark H Getelman
PURPOSE: The purpose of this study was to evaluate the time zero cyclic and failure loading properties of a linked single-row rotator cuff repair compared with a standard simple suture single-row repair using triple-loaded suture anchors. METHODS: Eighteen human cadaveric shoulders from 9 matched pairs were dissected, and full-thickness supraspinatus tears were created. The tendon cross-sectional area was recorded. In each pair, one side was repaired with a linked single-row construct and the other with a simple suture single-row construct, both using 2 triple-loaded suture anchors...
January 12, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28089496/cell-toxicity-in-fibroblasts-tenocytes-and-human-mesenchymal-stem-cells-a-comparison-of-necrosis-and-apoptosis-inducing-ability-in-ropivacaine-bupivacaine-and-triamcinolone
#16
Anja Z Zhang, Andreas Ficklscherer, Mehmet F Gülecyüz, Alexander C Paulus, Thomas R Niethammer, Volkmar Jansson, Peter E Müller
PURPOSE: To analyze the ability of ropivacaine, bupivacaine, and triamcinolone to induce apoptosis and necrosis in fibroblasts, tenocytes, and human mesenchymal stem cells. METHODS: Human dermal fibroblasts, adipose-derived human mesenchymal stem cells (hMSCs), and tenocytes gained from the rotator cuff tendon were seeded with a cell density of 0.5 × 10(4)/cm(2). One specimen of ropivacaine, bupivacaine, and triamcinolone was tested separately on the cells with separate concentrations of 0...
January 12, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28089495/assessment-of-the-isometry-of-the-anterolateral-ligament-in-a-3-dimensional-weight-bearing-computed-tomography-simulation
#17
Karl Wieser, Philipp Fürnstahl, Fabio Carrillo, Sandro F Fucentese, Lazaros Vlachopoulos
PURPOSE: To simulate the most isometric insertion points of the anterolateral ligament (ALL) in a weight-bearing 3-dimensional computed tomography (CT) model using previously published anatomic landmarks and to define radiographic landmarks, which make for an easier identification of the optimal insertion points. METHODS: The most isometric femoral insertion points were analyzed for 10 individuals, using data of weight-bearing CT scans in increasing knee flexion positions...
January 12, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28089193/brake-reaction-time-after-hip-arthroscopy-for-femoroacetabular-impingement-and-labral-tear
#18
Angelina M Vera, Naseem Beauchman, Patrick C McCulloch, Brayden J Gerrie, Domenica A Delgado, Joshua D Harris
PURPOSE: To determine if a difference exists in brake reaction time (BRT) before and after hip arthroscopy for femoroacetabular impingement (FAI) and labral tear compared with age- and gender-matched controls. METHODS: Consecutive adult subjects undergoing primary hip arthroscopy were eligible for this prospective investigation. Individuals with symptomatic FAI and labral tear that underwent hip arthroscopy with minimum 8 weeks follow-up were included. BRT was measured using the RT-2S reaction time tester a maximum of 6 weeks preoperatively and every 2 weeks postoperatively for 8 weeks...
January 11, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28082063/arthroscopic-repair-of-isolated-subscapularis-tears-a-systematic-review-of-technique-specific-outcomes
#19
REVIEW
Bryan M Saltzman, Michael J Collins, Timothy Leroux, Thomas A Arns, Justin W Griffin, Anthony A Romeo, Nikhil N Verma, Brian Forsythe
PURPOSE: To systematically review the literature to identify all studies reporting outcomes of arthroscopically repaired isolated subscapularis tears, to (1) report outcomes across all repair techniques, (2) compare outcomes by arthroscopic technique, and (3) highlight the frequency and management of associated long head of biceps pathology, and the influence of these concomitant procedures on outcomes following arthroscopic subscapularis repair. METHODS: A systematic literature review was conducted using the MEDLINE, Embase, and Scopus databases with the following term: ("isolated repair" AND "arthroscopic subscapularis tear")...
January 9, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28082062/five-strand-hamstring-autograft-versus-quadruple-hamstring-autograft-with-graft-diameters-8-0-millimeters-or-more-in-anterior-cruciate-ligament-reconstruction-clinical-outcomes-with-a-minimum-2-year-follow-up
#20
Rafael Calvo, David Figueroa, Francisco Figueroa, Alex Vaisman, Andrés Schmidt-Hebbel, Nelson Morales, Guillermo Izquierdo
PURPOSE: To compare the outcomes of 2 groups of patients undergoing anterior cruciate ligament (ACL) reconstruction: the first with a quadrupled semitendinosus gracilis (ST-G) autograft larger than 8 mm diameter and the second with a 5-strand ST-G autograft larger than 8 mm due to an insufficient diameter graft harvesting. METHODS: This was a retrospective study with 70 patients divided into 2 groups. Inclusion criteria included ACL ruptures of less than 3 months, ST-G ACL reconstructions, and final (4-strand or 5-strand) graft size larger than 8 mm...
January 9, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
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