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Arthroscopy: the Journal of Arthroscopic & related Surgery

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https://www.readbyqxmd.com/read/28089497/biomechanical-comparison-of-standard-and-linked-single-row-rotator-cuff-repairs-in-a-human-cadaver-model
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
https://www.readbyqxmd.com/read/28073670/simulation-based-training-platforms-for-arthroscopy-a-randomized-comparison-of-virtual-reality-learning-to-benchtop-learning
#7
Robert M Middleton, Abtin Alvand, Patrick Garfjeld Roberts, Caroline Hargrove, Georgina Kirby, Jonathan L Rees
PURPOSE: To determine whether a virtual reality (VR) arthroscopy simulator or benchtop (BT) arthroscopy simulator showed superiority as a training tool. METHODS: Arthroscopic novices were randomized to a training program on a BT or a VR knee arthroscopy simulator. The VR simulator provided user performance feedback. Individuals performed a diagnostic arthroscopy on both simulators before and after the training program. Performance was assessed using wireless objective motion analysis and a global rating scale...
January 7, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28063762/isolated-acetabuloplasty-and-labral-repair-for-combined-type-femoroacetabular-impingement-are-we-doing-too-much
#8
Vehniah K Tjong, Mustafa M Gombera, Cynthia A Kahlenberg, Ronak M Patel, Brian Han, Prashant Deshmane, Michael A Terry
PURPOSE: To evaluate patient outcomes after isolated arthroscopic volumetric acetabular osteoplasty and labral repair for the treatment of patients with combined femoroacetabular impingement (FAI) lesions. METHODS: A review of a prospectively collected registry identified 86 patients (106 hips) with an average age of 38.1 years (range, 17-59 years) with combined-type FAI that underwent isolated acetabular osteoplasty and labral repair. Preoperative α-angle, degree of radiographic degenerative changes, and presence of a crossover sign were recorded...
January 4, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28063761/comparison-of-radiographs-and-computed-tomography-for-the-screening-of-anterior-inferior-iliac-spine-impingement
#9
Broc R Schindler, Melanie B Venderley, Jacob D Mikula, Jorge Chahla, Grant J Dornan, Travis Lee Turnbull, Robert F LaPrade, Marc J Philippon
PURPOSE: To compare radiographic and 3-dimensional (3D) computed tomography (CT) imaging modalities for the screening of anterior inferior iliac spine (AIIS) impingement by establishing imaging measurement related to the AIIS. METHODS: Anteroposterior and false-profile radiographs and 3D CT scans were obtained on 10 human cadaveric pelvises. On the anteroposterior view for each methodology, 2 measurements were calculated: distance to the most lateral AIIS from the 12 o'clock position on the acetabular rim, and the angle between the lateral AIIS and the sagittal plane...
January 4, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28049597/amateur-and-recreational-athletes-return-to-sport-at-a-high-rate-following-hip-arthroscopy-for-femoroacetabular-impingement
#10
Alexander E Weber, Benjamin D Kuhns, Greg L Cvetanovich, Jeffrey S Grzybowski, Michael J Salata, Shane J Nho
PURPOSE: To compare the return-to-play rates, patient-reported outcome (PRO) scores, and satisfaction between high-level amateur athletes and recreational athletes and to evaluate for differences in ability to return to sport in these groups based on patient-related and sport-related characteristics. METHODS: Clinical data were retrieved for 66 (26 male/40 female) consecutive athletes undergoing hip arthroscopy for femoroacetabular impingement. Athletes were classified as high-level amateur or recreational...
December 31, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28049596/hip-preservation-surgery-expectations-survey-a-new-method-to-measure-patients-preoperative-expectations
#11
Carol A Mancuso, Catherine H Wentzel, Hassan M K Ghomrawi, Bryan T Kelly
PURPOSE: To develop a patient-derived expectations survey for hip preservation surgery. METHODS: Patients were eligible if they were undergoing primary hip surgery and were recruited in person or by telephone. The survey was developed in 3 phases. During phase 1, 64 patients were interviewed preoperatively and asked open-ended questions about their expectations of surgery; a draft survey was assembled by categorizing responses. During phase 2, the survey was administered twice to another group of 50 patients preoperatively to assess test-retest reliability and concordance was measured with weighted kappa values and intraclass correlations...
December 31, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28049595/is-the-arthroscopic-transillumination-test-effective-in-localizing-the-superficial-peroneal-nerve
#12
Thos Harnroongroj, Bavornrit Chuckpaiwong
PURPOSE: To evaluate the transillumination test in showing the position of the superficial peroneal nerve (SPN) to quantify the effectiveness of this test. METHODS: Prospectively, we selected 53 ankle arthroscopy patients (71 patients were excluded because of the invisible SPN). Demographic data including gender, weight, height, and body mass index were recorded. The intraoperative transillumination test was performed during portal establishment and recorded as positive if the SPN was visible via transillumination...
December 31, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28049594/anterior-inferior-iliac-spine-morphology-and-outcomes-of-hip-arthroscopy-in-soccer-athletes-a%C3%A2-comparison-to-nonkicking-athletes
#13
Danyal H Nawabi, Ryan M Degen, Kara G Fields, Catherine S Wentzel, Olusanjo Adeoye, Bryan T Kelly
PURPOSE: To describe the anterior inferior iliac spine (AIIS) morphology and clinical outcomes following arthroscopic surgical decompression in a group of high-level soccer athletes presenting with symptomatic hip impingement when compared with a control group of nonkicking athletes. METHODS: From 2009 to 2012, we retrospectively reviewed our prospective hip registry for soccer athletes who underwent arthroscopic treatment for femoroacetabular impingement (FAI) with 2-year follow-up, comparing with a control group of nonkicking athletes...
December 31, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28049593/quantitative-and-computed-tomography-anatomic-analysis-of-glenoid-fixation-for-superior-capsule-reconstruction-a-cadaveric-study
#14
Jason M Schon, J Christoph Katthagen, Cameron N Dupre, Justin J Mitchell, Travis Lee Turnbull, Christopher R Adams, Patrick J Denard, Peter J Millett
PURPOSE: To investigate glenoid fixation for superior capsule reconstruction (SCR) and evaluate anchor positions, intraosseous trajectories, and proximity to the suprascapular nerve (SSN) and glenoid fossa. The secondary purpose was to provide technical pearls and pitfalls for anchor insertion on the superior glenoid during SCR. METHODS: Three beath pins were arthroscopically inserted into 12 (n = 12) nonpaired human cadaveric shoulders through Neviaser, anterior, and posterior portals to simulate anchor placement on the superior glenoid during SCR...
December 31, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28049592/traditional-versus-congruent-arc-latarjet-technique-effect-on-surface-area-for-union-and-bone-width-surrounding-screws
#15
Guillaume D Dumont, Bryan G Vopat, Stephen Parada, Randy Cohn, Amun Makani, George Sanchez, Petar Golijanin, Brendin R Beaulieu-Jones, Anthony Sanchez, Matthew T Provencher
PURPOSE: To compare the surface area available for bony contact and the width of bone on each side of the Latarjet fixation screws in the traditional Latarjet technique versus the congruent arc modification of the Latarjet technique. METHODS: Computed tomographic scans of 24 shoulders in patients with glenohumeral instability who underwent multiplanar reconstruction measurements with multiple dimensions of the coracoid. The surface area of the coracoid available for bony contact with the anterior glenoid and width of bone on each side of a 3...
December 31, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28043753/medial-open-wedge-high-tibial-osteotomy-may-adversely-affect-the-patellofemoral-joint
#16
Kang-Il Kim, Dong-Kyoon Kim, Sang-Jun Song, Sang-Hak Lee, Dae-Kyung Bae
PURPOSE: To evaluate 2-stage arthroscopic findings of the patellofemoral joint before and after medial open-wedge high tibial osteotomy (HTO) and verify whether the patellofemoral joint would be influenced by medial open-wedge HTO. METHODS: We prospectively reviewed 114 cases of medial open-wedge HTO for the treatment of osteoarthritis with a varus knee. First-look arthroscopy was performed during HTO. The mean age at the time of HTO was 56.34 ± 5.4 years (range, 40-69 years)...
December 30, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28043752/fibrous-synovium-releases-higher-numbers-of-mesenchymal-stem-cells-than-adipose-synovium-in-a-suspended-synovium-culture-model
#17
Kenta Katagiri, Yu Matsukura, Takeshi Muneta, Nobutake Ozeki, Mitsuru Mizuno, Hisako Katano, Ichiro Sekiya
PURPOSE: To develop an in vitro model, the "suspended synovium culture model," to demonstrate the mobilization of mesenchymal stem cells (MSCs) from the synovium into a noncontacted culture dish through culture medium. In addition, to examine which synovium, fibrous synovium or adipose synovium, released more MSCs in the knee with osteoarthritis. METHODS: Human synovial tissue was harvested during total knee arthroplasty from knee joints of 34 patients with osteoarthritis (28 patients: only fibrous synovium, 6 patients: fibrous and adipose synovium)...
December 30, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28043751/bone-incorporation-of-silicate-substituted-calcium-phosphate-in-2-stage-revision-anterior-cruciate-ligament-reconstruction-a-histologic-and-radiographic-study
#18
Jan von Recum, Johannes Schwaab, Thorsten Guehring, Paul-Alfred Grützner, Marc Schnetzke
PURPOSE: To evaluate the histologic and radiographic outcomes of using silicate-substituted calcium phosphate (Si-CaP) as bone graft substitute for the augmentation of tunnel defects in 2-stage revision anterior cruciate ligament (ACL) reconstruction. METHODS: Forty patients undergoing 2-stage revision ACL reconstruction were included in a prospective, randomized controlled clinical trial between 2012 and 2015. The inclusion criteria were tunnel diameter of the tibial and/or femoral tunnel of 10 mm or greater after failed ACL reconstruction...
December 30, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28043750/viable-stem-cells-are-in-the-injury-effusion-fluid-and-arthroscopic-byproducts-from-knee-cruciate-ligament-surgery-an-in%C3%A2-vivo-analysis
#19
Adam W Anz, Eric A Branch, John Rodriguez, Fellipo Chillemi, Jeremy R Bruce, Richard K Suzuki, James R Andrews
PURPOSE: To examine the number of viable stem cells contained in the postinjury effusion fluid and the waste byproducts of arthroscopic cruciate ligament surgery. METHODS: This study included patients older than 18 years of age with acute (<5 weeks old) cruciate ligament injuries requiring arthroscopic surgery. The postinjury effusion fluid (effusion fluid), fat pad and cruciate ligament stump debridement tissue (byproduct tissue), and arthroscopic fluid collected during fat pad and/or stump debridement (byproduct fluid) were collected at the time of surgery from 30 individuals...
December 30, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28043749/an-anatomic-analysis-of-mid-anterior-and-anterolateral-approaches-for-hip-arthrocentesis-a%C3%A2-male-cadaveric-study
#20
Jacob D Mikula, Jason M Schon, Chase S Dean, Jorge Chahla, Renato Locks, Alex W Brady, Robert F LaPrade, Marc J Philippon
PURPOSE: To determine the accuracy and safety of non-image-guided modified mid-anterior and anterolateral approaches to the hip joint for arthrocentesis. METHODS: Six pairs (n = 12) of human cadaveric hemipelvises underwent methylene blue hip injections through either a mid-anterior or an anterolateral approach. The distance from the mid-anterior approach to the lateral femoral cutaneous nerve (LFCN) was measured. Needle orientation was defined by a combination of 2 angles, calculated by the computer software analysis of digitized points...
December 30, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
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