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Ronald lehman

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https://www.readbyqxmd.com/read/29672421/human-versus-robot-a-propensity-matched-analysis-of-the-accuracy-of-free-hand-versus-robotic-guidance-for-placement-of-s2-alar-iliac-s2ai-screws
#1
Jamal N Shillingford, Joseph L Laratta, Paul J Park, Joseph M Lombardi, Alexander Tuchman, Comron S Saifi, Ronald A Lehman, Lawrence G Lenke
STUDY DESIGN: Retrospective matched cohort analysis. OBJECTIVE: To compare the accuracy of S2 alar-iliac (S2AI) screw placement by robotic guidance versus free hand technique. SUMMARY OF BACKGROUND DATA: Spinopelvic fixation utilizing S2AI screws provides optimal fixation across the lumbosacral junction allowing for solid fusion, especially in long segment fusion constructs. Traditionally, S2AI screw placement has required fluoroscopic guidance for accurate screw placement...
April 18, 2018: Spine
https://www.readbyqxmd.com/read/29662748/national-trends-for-primary-and-revision-lumbar-disc-arthroplasty-throughout-the-united-states
#2
Comron Saifi, Alejandro Cazzulino, Caroline Park, Joseph Laratta, Philip K Louie, Jamal N Shillingford, Ronald Lehman, Howard An, Frank Phillips
Study Design: Retrospective database study. Objectives: Analysis of economic and demographic data concerning lumbar disc arthroplasty (LDA) throughout the United States to improve value-based care and health care utilization. Methods: The National Inpatient Sample database was queried for patients who underwent primary or revision LDA between 2005 and 2013. Demographic and economic data included total surgeries, costs, length of stay, and frequency of routine discharge...
April 2018: Global Spine Journal
https://www.readbyqxmd.com/read/29653244/opioid-utilization-following-cervical-spine-surgery-trends-and-factors-associated-with-long-term-use
#3
Andrew J Pugely, Nicholas A Bedard, Piyush Kalakoti, Nathan R Hendrickson, Jamal N Shillingford, Joseph L Laratta, Comron Saifi, Ronald A Lehman, K Daniel Riew
BACKGROUND CONTEXT: Limited or no data exist evaluating risk-factors associated with prolonged opioid use following cervical arthrodesis. PURPOSE: To assess trends in post-operative narcotic use amongst preoperative opioid users (OU) versus non-opioid users (NOU), and identify factors associated with postoperative narcotic use at 1-year following cervical arthrodesis. STUDY DESIGN/SETTING: Retrospective, observational study. PATIENT SAMPLE: 17,391 patients (OU: 52...
April 10, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29462061/visual-loss-following-spine-surgery-what-have-we-seen-within-the-scoliosis-research-society-morbidity-and-mortality-database
#4
Jamal N Shillingford, Joseph L Laratta, Nana O Sarpong, Hasani Swindell, Meghan Cerpa, Ronald A Lehman, Lawrence G Lenke, Charla Fischer
STUDY DESIGN: A retrospective review of the Scoliosis Research Society (SRS) morbidity and mortality (M&M) database. OBJECTIVE: The aim of this study was to investigate visual related complications in spinal deformity patients undergoing spine surgery. SUMMARY OF BACKGROUND DATA: The SRS compiles surgeon-reported complications into an M&M database, tracking postoperative complications including visual loss, neurological deficits, infections, and death...
February 16, 2018: Spine
https://www.readbyqxmd.com/read/29462037/the-free-hand-technique-for-s2-alar-iliac-screw-placement-a-safe-and-effective-method-for-sacropelvic-fixation-in-adult-spinal-deformity
#5
Jamal N Shillingford, Joseph L Laratta, Lee A Tan, Nana O Sarpong, James D Lin, Charla R Fischer, Ronald A Lehman, Yongjung J Kim, Lawrence G Lenke
BACKGROUND: Spinopelvic fixation is an integral part of achieving solid fusion across the lumbosacral junction, especially in deformity procedures requiring substantial correction or long-segment constructs. Traditional S2-alar-iliac (S2AI) screw-placement techniques utilize fluoroscopy, increasing operative time and radiation exposure to the patient and surgeon. We describe a novel free-hand technique for S2AI screw placement in patients with adult spinal deformity. METHODS: We reviewed the records of 45 consecutive patients who underwent spinopelvic fixation performed with use of S2AI screws by the senior surgeon and various fellows or residents over a 12-month period (2015 to 2016)...
February 21, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29456917/neuromonitoring-in-spinal-deformity-surgery-a-multimodality-approach
#6
REVIEW
Joseph L Laratta, Alex Ha, Jamal N Shillingford, Melvin C Makhni, Joseph M Lombardi, Earl Thuet, Ronald A Lehman, Lawrence G Lenke
Study Design: Literature review. Objective: The aim of this study was to provide an overview of the available intraoperative monitoring techniques and the evidence around their efficacy in vertebral column resection. Methods: The history of neuromonitoring and evolution of the modalities are reviewed and discussed. The authors' specific surgical techniques and preferred methods are outlined in detail. In addition, the authors' experience and the literature regarding vertebral column resection and surgical mitigation of neurologic alarms are discussed at length...
February 2018: Global Spine Journal
https://www.readbyqxmd.com/read/29413743/safety-of-a-high-dose-tranexamic-acid-protocol-in-complex-adult-spinal-deformity-analysis-of-100-consecutive-cases
#7
James D Lin, Lawrence G Lenke, Jamal N Shillingford, Joseph L Laratta, Lee A Tan, Charla R Fischer, Mark A Weller, Ronald A Lehman
STUDY DESIGN: Retrospective review of high-dose tranexamic acid (TXA) use in consecutive patients. OBJECTIVE: To determine the safety profile of a high-dose TXA protocol in complex adult spinal deformity patients. SUMMARY OF BACKGROUND DATA: Adult spinal deformity (ASD) surgery may involve significant amounts of blood loss, especially when various osteotomy techniques are used. Antifibrinolytic agents such as TXA have been used to reduce intraoperative blood loss...
March 2018: Spine Deformity
https://www.readbyqxmd.com/read/29413734/accuracy-of-s2-alar-iliac-screw-placement-under-robotic-guidance
#8
Joseph L Laratta, Jamal N Shillingford, Joseph M Lombardi, Rami G Alrabaa, Barlas Benkli, Charla Fischer, Lawrence G Lenke, Ronald A Lehman
STUDY DESIGN: Case series. OBJECTIVES: To determine the safety and feasibility of S2 alar-iliac (S2AI) screw placement under robotic guidance. SUMMARY OF BACKGROUND DATA: Similar to standard iliac fixation, S2AI screws aid in achieving fixation across the sacropelvic junction and decreasing S1 screw strain. Fortunately, the S2AI technique minimizes prominent instrumentation and the need for offset connectors to the fusion construct. Herein, we present an analysis of the largest series of robotic-guided S2AI screws in the literature without any significant author conflicts of interest with the robotics industry...
March 2018: Spine Deformity
https://www.readbyqxmd.com/read/29413733/building-consensus-development-of-best-practice-guidelines-on-wrong-level-surgery-in-spinal-deformity
#9
Michael Vitale, Anas Minkara, Hiroko Matsumoto, Todd Albert, Richard Anderson, Peter Angevine, Aaron Buckland, Samuel Cho, Matthew Cunningham, Thomas Errico, Charla Fischer, Han Jo Kim, Ronald Lehman, Baron Lonner, Peter Passias, Themistocles Protopsaltis, Frank Schwab, Lawrence Lenke
STUDY DESIGN: Consensus-building using the Delphi and nominal group technique. OBJECTIVE: To establish best practice guidelines using formal techniques of consensus building among a group of experienced spinal deformity surgeons to avert wrong-level spinal deformity surgery. SUMMARY OF BACKGROUND DATA: Numerous previous studies have demonstrated that wrong-level spinal deformity occurs at a substantial rate, with more than half of all spine surgeons reporting direct or indirect experience operating on the wrong levels...
March 2018: Spine Deformity
https://www.readbyqxmd.com/read/29360107/erratum-sequence-data-and-association-statistics-from-12-940-type-2-diabetes-cases-and-controls
#10
Jason Flannick, Christian Fuchsberger, Anubha Mahajan, Tanya M Teslovich, Vineeta Agarwala, Kyle J Gaulton, Lizz Caulkins, Ryan Koesterer, Clement Ma, Loukas Moutsianas, Davis J McCarthy, Manuel A Rivas, John R B Perry, Xueling Sim, Thomas W Blackwell, Neil R Robertson, N William Rayner, Pablo Cingolani, Adam E Locke, Juan Fernandez Tajes, Heather M Highland, Josee Dupuis, Peter S Chines, Cecilia M Lindgren, Christopher Hartl, Anne U Jackson, Han Chen, Jeroen R Huyghe, Martijn van de Bunt, Richard D Pearson, Ashish Kumar, Martina Müller-Nurasyid, Niels Grarup, Heather M Stringham, Eric R Gamazon, Jaehoon Lee, Yuhui Chen, Robert A Scott, Jennifer E Below, Peng Chen, Jinyan Huang, Min Jin Go, Michael L Stitzel, Dorota Pasko, Stephen C J Parker, Tibor V Varga, Todd Green, Nicola L Beer, Aaron G Day-Williams, Teresa Ferreira, Tasha Fingerlin, Momoko Horikoshi, Cheng Hu, Iksoo Huh, Mohammad Kamran Ikram, Bong-Jo Kim, Yongkang Kim, Young Jin Kim, Min-Seok Kwon, Juyoung Lee, Selyeong Lee, Keng-Han Lin, Taylor J Maxwell, Yoshihiko Nagai, Xu Wang, Ryan P Welch, Joon Yoon, Weihua Zhang, Nir Barzilai, Benjamin F Voight, Bok-Ghee Han, Christopher P Jenkinson, Teemu Kuulasmaa, Johanna Kuusisto, Alisa Manning, Maggie C Y Ng, Nicholette D Palmer, Beverley Balkau, Alena Stančáková, Hanna E Abboud, Heiner Boeing, Vilmantas Giedraitis, Dorairaj Prabhakaran, Omri Gottesman, James Scott, Jason Carey, Phoenix Kwan, George Grant, Joshua D Smith, Benjamin M Neale, Shaun Purcell, Adam S Butterworth, Joanna M M Howson, Heung Man Lee, Yingchang Lu, Soo-Heon Kwak, Wei Zhao, John Danesh, Vincent K L Lam, Kyong Soo Park, Danish Saleheen, Wing Yee So, Claudia H T Tam, Uzma Afzal, David Aguilar, Rector Arya, Tin Aung, Edmund Chan, Carmen Navarro, Ching-Yu Cheng, Domenico Palli, Adolfo Correa, Joanne E Curran, Dennis Rybin, Vidya S Farook, Sharon P Fowler, Barry I Freedman, Michael Griswold, Daniel Esten Hale, Pamela J Hicks, Chiea-Chuen Khor, Satish Kumar, Benjamin Lehne, Dorothée Thuillier, Wei Yen Lim, Jianjun Liu, Marie Loh, Solomon K Musani, Sobha Puppala, William R Scott, Loïc Yengo, Sian-Tsung Tan, Herman A Taylor, Farook Thameem, Gregory Wilson, Tien Yin Wong, Pål Rasmus Njølstad, Jonathan C Levy, Massimo Mangino, Lori L Bonnycastle, Thomas Schwarzmayr, João Fadista, Gabriela L Surdulescu, Christian Herder, Christopher J Groves, Thomas Wieland, Jette Bork-Jensen, Ivan Brandslund, Cramer Christensen, Heikki A Koistinen, Alex S F Doney, Leena Kinnunen, Tõnu Esko, Andrew J Farmer, Liisa Hakaste, Dylan Hodgkiss, Jasmina Kravic, Valeri Lyssenko, Mette Hollensted, Marit E Jørgensen, Torben Jørgensen, Claes Ladenvall, Johanne Marie Justesen, Annemari Käräjämäki, Jennifer Kriebel, Wolfgang Rathmann, Lars Lannfelt, Torsten Lauritzen, Narisu Narisu, Allan Linneberg, Olle Melander, Lili Milani, Matt Neville, Marju Orho-Melander, Lu Qi, Qibin Qi, Michael Roden, Olov Rolandsson, Amy Swift, Anders H Rosengren, Kathleen Stirrups, Andrew R Wood, Evelin Mihailov, Christine Blancher, Mauricio O Carneiro, Jared Maguire, Ryan Poplin, Khalid Shakir, Timothy Fennell, Mark DePristo, Martin Hrabé de Angelis, Panos Deloukas, Anette P Gjesing, Goo Jun, Peter Nilsson, Jacquelyn Murphy, Robert Onofrio, Barbara Thorand, Torben Hansen, Christa Meisinger, Frank B Hu, Bo Isomaa, Fredrik Karpe, Liming Liang, Annette Peters, Cornelia Huth, Stephen P O'Rahilly, Colin N A Palmer, Oluf Pedersen, Rainer Rauramaa, Jaakko Tuomilehto, Veikko Salomaa, Richard M Watanabe, Ann-Christine Syvänen, Richard N Bergman, Dwaipayan Bharadwaj, Erwin P Bottinger, Yoon Shin Cho, Giriraj R Chandak, Juliana C N Chan, Kee Seng Chia, Mark J Daly, Shah B Ebrahim, Claudia Langenberg, Paul Elliott, Kathleen A Jablonski, Donna M Lehman, Weiping Jia, Ronald C W Ma, Toni I Pollin, Manjinder Sandhu, Nikhil Tandon, Philippe Froguel, Inês Barroso, Yik Ying Teo, Eleftheria Zeggini, Ruth J F Loos, Kerrin S Small, Janina S Ried, Ralph A DeFronzo, Harald Grallert, Benjamin Glaser, Andres Metspalu, Nicholas J Wareham, Mark Walker, Eric Banks, Christian Gieger, Erik Ingelsson, Hae Kyung Im, Thomas Illig, Paul W Franks, Gemma Buck, Joseph Trakalo, David Buck, Inga Prokopenko, Reedik Mägi, Lars Lind, Yossi Farjoun, Katharine R Owen, Anna L Gloyn, Konstantin Strauch, Tiinamaija Tuomi, Jaspal Singh Kooner, Jong-Young Lee, Taesung Park, Peter Donnelly, Andrew D Morris, Andrew T Hattersley, Donald W Bowden, Francis S Collins, Gil Atzmon, John C Chambers, Timothy D Spector, Markku Laakso, Tim M Strom, Graeme I Bell, John Blangero, Ravindranath Duggirala, E Shyong Tai, Gilean McVean, Craig L Hanis, James G Wilson, Mark Seielstad, Timothy M Frayling, James B Meigs, Nancy J Cox, Rob Sladek, Eric S Lander, Stacey Gabriel, Karen L Mohlke, Thomas Meitinger, Leif Groop, Goncalo Abecasis, Laura J Scott, Andrew P Morris, Hyun Min Kang, David Altshuler, Noël P Burtt, Jose C Florez, Michael Boehnke, Mark I McCarthy
This corrects the article DOI: 10.1038/sdata.2017.179.
January 23, 2018: Scientific Data
https://www.readbyqxmd.com/read/29354757/obstructed-spinopelvic-fixation-in-the-setting-of-a-triangular-titanium-sacroiliac-fusion-implant-a-case-description
#11
Joseph L Laratta, James D Lin, Jamal N Shillingford, Nathan E Hardy, Hemant Reddy, Ronald A Lehman
Achieving lumbosacral fusion through spinopelvic fixation is an important and challenging aspect of spinal deformity surgery. Numerous instrumentation techniques are available, with iliac screws and S2-alar-iliac (SRAI) screws being most commonly used today. However, the increasing popularity of minimally invasive sacroiliac (SI) fusion as a common procedure performed for SI joint pain presents a distinct challenge in complex adult deformity cases requiring iliac screw fixation. We report a case of a 71-year-old female with a longstanding history of spinal deformity status-post T11-L5 fusion and a subsequent right-sided SI joint fusion who presented with sagittal imbalance...
December 2017: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/29354743/national-outcomes-following-single-level-cervical-disc-arthroplasty-versus-anterior-cervical-discectomy-and-fusion
#12
Jamal Shillingford, Joseph Laratta, Nathan Hardy, Comron Saifi, Joseph Lombardi, Andrew J Pugely, Ronald A Lehman, K Daniel Riew
Background: To compare the differences in the thirty-day postoperative outcomes between cervical disc arthroplasty (CDA) and anterior cervical discectomy and fusion (ACDF). Methods: Patients undergoing primary single-level ACDF and CDA from 2010-2014 were identified by unique Current Procedural Terminology (CPT) codes within the American College of Surgeon's National Surgical Quality Improvement Program (NSQIP) database. Primary outcomes included surgical and medical complications, length of hospital stay (LOS), unplanned readmission, return to operating room, and mortality all occurring within 30 days of the initial procedure...
December 2017: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/29343600/rapid-phenotypic-evolution-following-shifts-in-life-cycle-complexity
#13
Ronald M Bonett, John G Phillips, Nicholus M Ledbetter, Samuel D Martin, Luke Lehman
Life cycle strategies have evolved extensively throughout the history of metazoans. The expression of disparate life stages within a single ontogeny can present conflicts to trait evolution, and therefore may have played a major role in shaping metazoan forms. However, few studies have examined the consequences of adding or subtracting life stages on patterns of trait evolution. By analysing trait evolution in a clade of closely related salamander lineages we show that shifts in the number of life cycle stages are associated with rapid phenotypic evolution...
January 31, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29227322/no-clear-benefit-of-chlorhexidine-use-at-home-before-surgical-preparation
#14
Melvin Chugh Makhni, Kolawole Jegede, Joseph Lombardi, Susan Whittier, Prakash Gorroochurn, Ronald A Lehman, K Daniel Riew
INTRODUCTION: Several studies have evaluated the efficacy of home use of chlorhexidine before surgery to reduce bacterial colonization. However, these studies have provided conflicting evidence about the potential efficacy of this strategy in decreasing bacterial loads and infection rates across surgical populations, and no prior study has analyzed the benefit of this intervention before spine surgery. We prospectively analyzed the effectiveness of chlorhexidine gluconate wipes for decreasing bacterial counts on the posterior neck...
January 15, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29128581/trends-in-resource-utilization-and-rate-of-cervical-disc-arthroplasty-and-anterior-cervical-discectomy-and-fusion-throughout-the-united-states-from-2006-to-2013
#15
Comron Saifi, Arielle Fein, Alejandro Cazzulino, Ronald Lehman, Frank M Phillips, Howard S An, K Daniel Riew
BACKGROUND CONTEXT: The typically accepted surgical procedure for cervical disc pathology has been the anterior cervical discectomy and fusion (ACDF), although recent trials have demonstrated equivalent or improved outcomes with cervical disc arthroplasty (CDA). Trends for these two procedures regarding utilization, revision procedures, along with other demographic information have not been sufficiently explored. PURPOSE: To provide data regarding ACDF and CDA from 2006-2013 in the U...
November 8, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29100083/high-rate-of-recurrent-de-novo-mutations-in-developmental-and-epileptic-encephalopathies
#16
Fadi F Hamdan, Candace T Myers, Patrick Cossette, Philippe Lemay, Dan Spiegelman, Alexandre Dionne Laporte, Christina Nassif, Ousmane Diallo, Jean Monlong, Maxime Cadieux-Dion, Sylvia Dobrzeniecka, Caroline Meloche, Kyle Retterer, Megan T Cho, Jill A Rosenfeld, Weimin Bi, Christine Massicotte, Marguerite Miguet, Ledia Brunga, Brigid M Regan, Kelly Mo, Cory Tam, Amy Schneider, Georgie Hollingsworth, David R FitzPatrick, Alan Donaldson, Natalie Canham, Edward Blair, Bronwyn Kerr, Andrew E Fry, Rhys H Thomas, Joss Shelagh, Jane A Hurst, Helen Brittain, Moira Blyth, Robert Roger Lebel, Erica H Gerkes, Laura Davis-Keppen, Quinn Stein, Wendy K Chung, Sara J Dorison, Paul J Benke, Emily Fassi, Nicole Corsten-Janssen, Erik-Jan Kamsteeg, Frederic T Mau-Them, Ange-Line Bruel, Alain Verloes, Katrin Õunap, Monica H Wojcik, Dara V F Albert, Sunita Venkateswaran, Tyson Ware, Dean Jones, Yu-Chi Liu, Shekeeb S Mohammad, Peyman Bizargity, Carlos A Bacino, Vincenzo Leuzzi, Simone Martinelli, Bruno Dallapiccola, Marco Tartaglia, Lubov Blumkin, Klaas J Wierenga, Gabriela Purcarin, James J O'Byrne, Sylvia Stockler, Anna Lehman, Boris Keren, Marie-Christine Nougues, Cyril Mignot, Stéphane Auvin, Caroline Nava, Susan M Hiatt, Martina Bebin, Yunru Shao, Fernando Scaglia, Seema R Lalani, Richard E Frye, Imad T Jarjour, Stéphanie Jacques, Renee-Myriam Boucher, Emilie Riou, Myriam Srour, Lionel Carmant, Anne Lortie, Philippe Major, Paola Diadori, François Dubeau, Guy D'Anjou, Guillaume Bourque, Samuel F Berkovic, Lynette G Sadleir, Philippe M Campeau, Zoha Kibar, Ronald G Lafrenière, Simon L Girard, Saadet Mercimek-Mahmutoglu, Cyrus Boelman, Guy A Rouleau, Ingrid E Scheffer, Heather C Mefford, Danielle M Andrade, Elsa Rossignol, Berge A Minassian, Jacques L Michaud
Developmental and epileptic encephalopathy (DEE) is a group of conditions characterized by the co-occurrence of epilepsy and intellectual disability (ID), typically with developmental plateauing or regression associated with frequent epileptiform activity. The cause of DEE remains unknown in the majority of cases. We performed whole-genome sequencing (WGS) in 197 individuals with unexplained DEE and pharmaco-resistant seizures and in their unaffected parents. We focused our attention on de novo mutations (DNMs) and identified candidate genes containing such variants...
November 2, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29057344/utilization-of-vertebroplasty-and-kyphoplasty-procedures-throughout-the-united-states-over-a-recent-decade-an-analysis-of-the-nationwide-inpatient-sample
#17
Joseph L Laratta, Jamal N Shillingford, Joseph M Lombardi, John D Mueller, Hemant Reddy, Comron Saifi, Charla R Fischer, Steven C Ludwig, Lawrence G Lenke, Ronald A Lehman
BACKGROUND: Given the increasing societal focus on health care utilization and value-based care, it is essential to understand the demographic and economic data surrounding percutaneous vertebral augmentation procedures performed in the United States. Double-blinded prospective randomized controlled trials have shown no benefit to the use of vertebroplasty over a sham procedure in the treatment of vertebral fractures. Contrastingly, kyphoplasty may be beneficial when appropriately indicated...
September 2017: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/28989848/biomechanical-stability-of-a-stand-alone-interbody-spacer-in-two-level-and-hybrid-cervical-fusion-constructs
#18
Daniel G Kang, Scott C Wagner, Robert W Tracey, John P Cody, Rachel E Gaume, Ronald A Lehman
STUDY DESIGN: In vitro human cadaveric biomechanical analysis. OBJECTIVE: To evaluate the segmental stability of a stand-alone spacer (SAS) device compared with the traditional anterior cervical plate (ACP) construct in the setting of a 2-level cervical fusion construct or as a hybrid construct adjacent to a previous 1-level ACP construct. METHODS: Twelve human cadaveric cervical spines (C2-T1) were nondestructively tested with a custom 6-degree-of-freedom spine simulator under axial rotation (AR), flexion-extension (FE), and lateral bending (LB) at 1...
October 2017: Global Spine Journal
https://www.readbyqxmd.com/read/28922278/defining-the-critical-elements-for-the-most-common-procedures-in-spine-surgery-a-consensus-of-orthopaedic-and-neurosurgical-surgeons
#19
Joseph L Laratta, Samuel Cohen-Tanugi, Jamal N Shillingford, Joseph M Lombardi, Lawrence G Lenke, K Daniel Riew, Ronald A Lehman, Steven C Ludwig
STUDY DESIGN: Survey. OBJECTIVE: To define the critical elements of common spine surgeries. SUMMARY OF BACKGROUND DATA: Despite significant relevance to the field of spine surgery, the term "critical element" of surgery has not been clearly defined. Every surgical procedure involves numerous steps, each with its own potential for complications and harm to the patient. Despite its crucial role in surgical training, billing, and the ethicality of concurrent surgery, the term "critical element" of surgery has not been defined...
September 15, 2017: Spine
https://www.readbyqxmd.com/read/28906148/hip-and-knee-arthroplasty-are-common-among-patients-with-transthyretin-cardiac-amyloidosis-occurring-years-before-cardiac-amyloid-diagnosis-can-we-identify-affected-patients-earlier
#20
Jonah Rubin, Julissa Alvarez, Sergio Teruya, Adam Castano, Ronald A Lehman, Mark Weidenbaum, Jeffrey A Geller, Stephen Helmke, Mathew S Maurer
Transthyretin cardiac amyloidosis (ATTR-CA) causes a restrictive cardiomyopathy in older adults, often diagnosed at advanced stages when emerging therapies in late phase clinical trials may not have clinical benefit. This investigation aimed to detect clinical entities that may provide more advanced warning of ATTR-CA. Since ATTR preferentially deposits in ligaments, tendons, and articular cartilage, we hypothesized that ATTR-CA patients have a greater prevalence of total hip (THA) and knee (TKA) arthroplasties compared with the general population, and that arthroplasty occurs significantly before ATTR-CA diagnosis...
December 2017: Amyloid: the International Journal of Experimental and Clinical Investigation
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