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https://www.readbyqxmd.com/read/29768929/current-concepts-in-revision-hip-arthroscopy
#1
Renato Locks, Ioanna Bolia, Hajime Utsunomiya, Karen Briggs, Marc J Philippon
Hip arthroscopy is an evolving procedure and its indications have expanded. The number of patients undergoing this procedure has increased significantly as well as the number of surgeons being trained. This has resulted in a notable increase in post-operative complication rates creating the need to develop advanced hip arthroscopic techniques. Revision hip arthroscopy is often complex and many factors should be considered to achieve a satisfactory clinical outcome. Careful pre-operative planning and agreement of expectations between the physician and patient regarding the procedure are important...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29744648/the-eden-hybbinette-procedure-is-one-hundred-years-old-a-historical-view-of-the-concept-and-its-evolutions
#2
Guillaume Villatte, Sally Spurr, Cyrus Broden, Antoine Martins, Roger Emery, Peter Reilly
INTRODUCTION: One hundred years ago, before Bankart, Latarjet or Bristow, Eden and Hybbinette developed a procedure to treat anterior shoulder instability and currently, this eponymous term is known by every shoulder surgeon. The purpose of this review is to summarise the historical "Eden-Hybbinette" procedure and its evolutions during the last century and discuss results. METHOD: On the centenary of the first publication on the "Eden-Hybbinette procedure", a search was conducted on Medline, Google Scholar and in the grey literature, to find its initial concept and description, and the evolutions...
May 9, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29735375/which-additional-augmented-fixation-procedure-decreases-surgical-failure-after-proximal-humeral-fracture-with-medial-comminution-fibular-allograft-or-inferomedial-screws
#3
Doo-Sup Kim, Doo-Hyung Lee, Yong-Min Chun, Sang-Jin Shin
BACKGROUND: The purpose of this study was to compare clinical and radiologic results between treatment with locking plate fixation and fibular allograft augmentation (FA) and treatment with locking plate fixation and additional inferomedial screws (IMSs) in 3- or 4-part proximal humeral fractures with medial comminution in geriatric patients. METHODS: We enrolled 164 patients with 3- or 4-part proximal humeral fractures with medial comminution who were treated with locking plates...
May 4, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29729759/editorial-commentary-when-is-too-small-too-small-allograft-augmentation-of-autologous-hamstring-grafts-during-anterior-cruciate-ligament-reconstruction
#4
EDITORIAL
Kyle R Duchman, William E Garrett
Soft tissue allograft augmentation of small hamstring autografts, so-called hybrid grafts, has been proposed as an option during anterior cruciate ligament reconstruction (ACL-R). However, notable concerns exist with both small autograft use and allograft use during ACL-R, particularly in young, active patients. We currently choose to augment hamstring autografts with diameters <8.0 mm, adding only enough allograft to create a hybrid graft with an overall diameter no larger than 8.5 mm. Based on the available evidence, surgeons continue to seek the tipping point where the benefit of additional allograft tissue exceeds the consequence of its use...
May 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29717906/relationship-of-selected-adipokines-with-markers-of-vascular-damage-in-patients-with-type-2-diabetes
#5
Jaromíra Spurná, David Karásek, Veronika Kubíčková, Dominika Goldmannová, Ondřej Krystyník, Jan Schovánek, Josef Zadražil
BACKGROUND: In this study we compared levels of selected adipokines between patients with type 2 diabetes (T2D) and healthy individuals and we determined their relationship with early vascular damage markers. METHODS: Seventy-seven subjects: 56 patients with T2D (34 men and 22 women) and 21 healthy controls (8 men and 13 women) were examined in this cross-sectional study. Selected adipokines [adiponectin, adipocyte fatty acid-binding protein (A-FABP), fibroblast growth factor 21 (FGF-21), C1q/TNF-related protein 9 (CTRP-9), and allograft inflammatory factor-1 (AIF-1)] with possible cardiovascular impact were measured in all participants...
May 2, 2018: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/29713889/acellular-dermal-matrix-allograft-versus-free-gingival-graft-a-histological-evaluation-and-split-mouth-randomized-clinical-trial
#6
Daniel Romeu Benchimol de Resende, Sebastião Luiz Aguiar Greghi, Aline Franco Siqueira, César Augusto Magalhães Benfatti, Carla Andreotti Damante, Mariana Schutzer Ragghianti Zangrando
OBJECTIVES: This split-mouth controlled randomized clinical trial evaluated clinical and histological results of acellular dermal matrix allograft (ADM) compared to autogenous free gingival graft (FGG) for keratinized tissue augmentation. MATERIAL AND METHODS: Twenty-five patients with the absence or deficiency of keratinized tissue (50 sites) were treated with FGG (control group) and ADM (test group). Clinical parameters included keratinized tissue width (KTW) (primary outcome), soft tissue thickness (TT), recession depth (RD), probing depth (PD), and clinical attachment level (CAL)...
April 30, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29705749/quadriceps-tendon-autograft-for-arthroscopic-knee-ligament-reconstruction-use-it-now-use-it-often
#7
REVIEW
Andrew J Sheean, Volker Musahl, Harris S Slone, John W Xerogeanes, Danko Milinkovic, Christian Fink, Christian Hoser
Traditional bone-patellar tendon-bone and hamstring tendon ACL grafts are not without limitations. A growing body of anatomic, biomechanical and clinical data has demonstrated the utility of quadriceps tendon autograft in arthroscopic knee ligament reconstruction. The quadriceps tendon autograft provides a robust volume of tissue that can be reliably harvested, mitigating the likelihood of variably sized grafts and obviating the necessity of allograft augmentation. Modern, minimally invasive harvest techniques offer the advantages of low rates of donor site morbidity and residual extensor mechanism strength deficits...
April 28, 2018: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29703261/biomechanical-analysis-of-plate-systems-for-proximal-humerus-fractures-a-systematic-literature-review
#8
REVIEW
Ali Jabran, Chris Peach, Lei Ren
BACKGROUND: Proximal humerus fractures are the third most common in the human body but their management remains controversial. Open reduction and internal fixation with plates is one of the leading modes of operative treatment for these fractures. The development of technologies and techniques for these plates, during the recent decades, promise a bright future for their clinical use. A comprehensive review of in vitro biomechanical studies is needed for the comparison of plates' mechanical performance and the testing methodologies...
April 27, 2018: Biomedical Engineering Online
https://www.readbyqxmd.com/read/29683498/advanced-platelet-rich-fibrin-and-freeze-dried-bone-allograft-for-ridge-preservation-a-randomized-controlled-clinical-trial
#9
Daniel Clark, Yogalakshmi Rajendran, Sarmad Paydar, Sunita Ho, Darren Cox, Mark Ryder, John Dollard, Richard T Kao
BACKGROUND: Advanced platelet-rich fibrin (A-PRF) is an autogenous blood product with applications in dento-alveolar surgery. However, there is minimal information regarding its optimal clinical application or efficacy. The aim of this multi-arm parallel randomized controlled clinical trial was to evaluate the efficacy of A-PRF alone or with freeze-dried bone allograft (FDBA) in improving vital bone formation and alveolar dimensional stability during ridge preservation. METHODS: Forty patients requiring extraction of non-molar teeth and replacement with dental implants were randomized into one of four ridge preservation approaches: A-PRF, A-PRF+FDBA, FDBA, or blood clot...
April 2018: Journal of Periodontology
https://www.readbyqxmd.com/read/29677072/state-of-the-art-role-of-the-dendritic-cell-in-induction-of-allograft-tolerance
#10
Sarah J Rosen, Paul E Harris, Mark A Hardy
Despite decades of research, the induction and maintenance of long-term allograft tolerance without immunosuppression remains an elusive goal in the field of solid organ and cell transplantation. Immunosuppressive medications frequently prevent or minimize acute cellular rejection but have failed to halt anti-donor antibody production and chronic organ rejection. Past efforts aimed at promoting lasting allograft tolerance have focused primarily on peripheral T cell depletion, augmentation of regulatory T cells, or induction via simultaneous hematopoietic stem cell transplantation and facilitation of donor chimerism...
April 19, 2018: Transplantation
https://www.readbyqxmd.com/read/29659379/bony-reconstruction-of-the-anterior-glenoid-rim
#11
Laurent B Willemot, Bassem T Elhassan, Olivier Verborgt
Recurrent anterior shoulder instability is associated with glenohumeral bone loss. Glenoid deficiency compromises the concavity-compression mechanism. Medial Hill-Sachs lesions can result in an off-track humeral position. Anterior glenoid reconstruction or augmentation prevents recurrence by addressing the pathomechanics. In Bristow and Latarjet procedures, the coracoid process is harvested for conjoint tendon transfer, capsular reinforcement, and glenoid rim restoration. Complications and the nonanatomic nature of the procedure have spurred research on graft sources...
May 15, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29628686/treatment-options-for-chronic-pelvic-discontinuity
#12
REVIEW
Mark D Hasenauer, Wayne G Paprosky, Neil P Sheth
Chronic pelvic discontinuity is a distinct and unique challenge seen during revision total hip arthroplasty (THA) in which the superior ilium is separated from the inferior ischiopubic segment through the acetabulum, rendering the anterior and posterior columns discontinuous. The operative management of acetabular bone loss in revision THA is one of the most difficult challenges today. Common treatment options include cage reconstruction with bulk acetabular allograft, custom triflange acetabular component, a cup-cage construct, jumbo acetabular cup with porous metal augments, or acetabular distraction with a porous tantalum shell with or without modular porous augments...
January 2018: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/29620252/tim%C3%A2-4-blockade-of-kcs-combined-with-exogenous-tgf%C3%A2-%C3%AE-injection-helps-to-reverse-acute-rejection-and-prolong-the-survival-rate-of-mice-receiving-liver-allografts
#13
Hao Wu, Xuesong Xu, Jinzheng Li, Jianping Gong, Min Li
An acute reaction response (AR) following liver transplantation (LT) is caused by immune responses that are primarily mediated by T lymphocytes. Kupffer cells (KCs) are the largest antigen presenting cell (APC) group in vivo and are the primary modulators of the inflammatory or tolerogenic immune response in liver tissues. T cell immunoglobulin‑domain and mucin‑domain-4 (TIM‑4), the only TIM protein not expressed on T cells, is expressed on APCs; suggesting that it mediates the various immune responses...
March 30, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29593980/anatomic-posterolateral-corner-reconstruction-with-autografts
#14
Carlos Eduardo Franciozi, Leonardo José Bernardes Albertoni, Guilherme Conforto Gracitelli, Fernando Cury Rezende, Luiz Felipe Ambra, Fábio Pacheco Ferreira, Marcelo Seiji Kubota, Sheila Jean McNeil Ingham, Marcus Vinícius Malheiros Luzo, Moisés Cohen, Rene Jorge Abdalla
Anatomic posterolateral corner reconstruction reproduces 3 main structures: the lateral collateral ligament, the popliteofibular ligament, and the popliteus tendon. The LaPrade technique reproduces all 3 main stabilizers. However, it requires a long graft, limiting its indication to clinical settings in which allograft tissue is available. We propose a surgical procedure that is a modification of the LaPrade technique using the same tunnel placement, hamstring autografts, and biceps augmentation when necessary...
February 2018: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29570765/effect-of-bisphosphonate-pretreatment-on-fresh-osteochondral-allografts-analysis-of-in-vitro-graft-structure-and-in-vivo-osseous-incorporation
#15
Drew D Moore, Kevin C Baker, Erin A Baker, Mackenzie M Fleischer, Michael D Newton, Nicholas Barreras, Zachary M Vaupel, Paul T Fortin
Fresh allograft transplantation of osteochondral defects restores functional articular cartilage and subchondral bone; however, rapid loss of chondrocyte viability during storage and osteoclast-mediated bone resorption at the graft-host interface after transplantation negatively impact outcomes. The authors present a pilot study evaluating the in vitro and in vivo impact of augmenting storage media with bisphosphonates. Forty cylindrical osteochondral cores were harvested from femoral condyles of human cadaveric specimens and immersed in either standard storage media or storage media supplemented with nitrogenated or non-nitrogenated bisphosphonates...
March 23, 2018: Orthopedics
https://www.readbyqxmd.com/read/29564211/complex-knee-injuries-treated-in-acute-phase-long-term-results-using-ligament-augmentation-and-reconstruction-system-artificial-ligament
#16
John Gliatis, Konstantinos Anagnostou, Pantelis Tsoumpos, Evdokia Billis, Maria Papandreou, Spyridon Plessas
AIM: To present the long-term results of complex knee injuries, treated early using the Ligament Augmentation and Reconstruction System (LARS) artificial ligament to reconstruct posterior cruciate ligament (PCL). METHODS: From September 1997 to June 2010, thirty-eight complex knee injuries were treated, where early arthroscopic PCL reconstructions were undergone, using the LARS (Surgical Implants and Devices, Arc-sur-Tille, France) artificial ligament. Exclusion criteria were: Late (> 4 wk) reconstruction, open technique, isolated PCL reconstruction, knee degenerative disease, combined fracture or vascular injury and use of allograft or autograft for PCL reconstruction...
March 18, 2018: World Journal of Orthopedics
https://www.readbyqxmd.com/read/29558374/functional-and-radiographic-outcomes-after-allograft-anatomic-coracoclavicular-ligament-reconstruction
#17
Sean Baran, Jeffrey G Belisle, Erin K Granger, Robert Z Tashjian
OBJECTIVES: To analyze the functional and radiographic outcomes of anatomic coracoclavicular ligament reconstruction (ACCR) using allograft tendon without interference screw fixation. DESIGN: Retrospective nonrandomized study. SETTING: Level I trauma center (University Hospital). PATIENTS: Seventeen patients (mean age of 44 years) with Rockwood III through V acromioclavicular joint disruptions. Twelve of 17 patients had a primary reconstruction, including 4 patients sustaining their injuries as part of a polytrauma incident...
April 2018: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/29552480/primary-anterior-cruciate-ligament-repair-with-augmentation
#18
Sachin Ramchandra Tapasvi, Anshu Shekhar, Shantanu Sudhakar Patil
Anterior cruciate ligament (ACL) tears are usually managed by reconstruction with autograft or allograft, but primary repair in carefully selected patients is a reasonable option. Proximal avulsions presenting early with excellent tissue quality are amenable to repair and healing. Restoration of native ACL preserves its proprioceptive and kinematic functions. A repair is less invasive and avoids graft-related problems, and faster rehabilitation is possible. Protection for the repair in the early stages will allow better healing...
February 2018: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29516108/-shoulder-prosthesis-replacement-options-new-implants-treatment-algorithms-and-clinical-results
#19
REVIEW
D Seybold, T A Schildhauer, J Geßmann
BACKGROUND: Bony defect situations are a common problem in revision arthroplasty of the shoulder and are the cause of the complexity of the procedure. Aseptic and septic loosening as well as difficult implant removal can result in humeral and/or glenoid bone loss. PLANNING: A careful preoperative imaging is needed to estimate the extent of the bony defect and to enable precise planning of the bone reconstruction and the required implants. However, the size of the defect needs to be re-evaluated intraoperatively after removal of the implant components and any larger defects have to be addressed appropriately...
May 2018: Der Orthopäde
https://www.readbyqxmd.com/read/29494714/patient-specific-implants-in-severe-glenoid-bone-loss
#20
Ivan De Martino, David M Dines, Russell F Warren, Edward V Craig, Lawrence V Gulotta
Complex glenoid bone deformities present the treating surgeon with a complex reconstructive challenge. Although glenoid bone loss can be encountered in the primary setting (degenerative, congenital, post-traumatic), severe glenoid bone loss is encountered in most revision total shoulder arthroplasties. Severe glenoid bone loss is treated with various techniques including hemiarthroplasty, eccentric reaming, and glenoid reconstruction with bone autografts and allografts. Despite encouraging short- to mid-term results reported with these reconstruction techniques, the clinical and radiographic outcomes remain inconsistent and the high number of complications is a concern...
February 2018: American Journal of Orthopedics
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