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Total knee arthroplasty

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https://www.readbyqxmd.com/read/29234658/blood-level-changes-in-total-knee-arthroplasty-with-and-without-a-tourniquet
#1
Marco Felipe Francisco Honorato de Barros, Evandro Junior Christovam Ribeiro, Rafael Gomes Dias
Objective: To evaluate the difference between the total blood loss in patients undergoing primary total knee arthroplasty with and without the use of tourniquet. Methods: A retrospective cohort study, with analysis of medical records of patients undergoing primary total knee arthroplasty in 2015, with and without the use of a tourniquet. Comparison was performed of hemoglobin (HB) and hematocrit (HT) variation in the complete blood count (CBC) during the pre- and post-operative period between the two groups...
November 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/29234644/prophylaxis-with-nasal-decolonization-in-patients-submitted-to-total-knee-and-hip-arthroplasty-systematic-review-and-meta-analysis
#2
REVIEW
David Sadigursky, Henrique Santos Pires, Saulo Américo Caldas Rios, Francisco Luiz Borja Rodrigues Filho, Gustavo Castro de Queiroz, Mateus Lemos Azi
Despite the evolution of the total knee and hip arthroplasty surgery, high postoperative complication rates in the short and long term still persist. Infection is one of the most challenging complications; due to its gravity and treatment difficulties, prophylaxis protocols have been created to decrease its incidence. The objective of this study was to evaluate the impact of the prophylaxis protocol for methicillin-resistant Staphylococcus aureus decolonization of the nares in patients previously identified by swab cultures, who were to be submitted to a total joint arthroplasty...
November 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/29233569/continuous-adductor-canal-blocks-provide-superior-ambulation-and-pain-control-compared-to-epidural-analgesia-for-primary-knee-arthroplasty-a-randomized-controlled-trial
#3
Erdan Kayupov, Kamil Okroj, Adam C Young, Mario Moric, Timothy J Luchetti, Gilat Zisman, Asokumar Buvanendran, Tad L Gerlinger, Craig J Della Valle
BACKGROUND: Adductor canal blocks (ACBs) are an alternative to femoral nerve blocks that minimize lower extremity weakness. However, it is unclear whether this block will provide analgesia that is equivalent to techniques, such as epidural analgesia. The purpose of this randomized controlled trial was to compare continuous ACBs with epidural analgesia for primary total knee arthroplasty. METHODS: Following institutional review board approval, 145 patients were randomized to 1 of 3 groups: combined spinal-epidural (CSE), spinal + continuous ACB (CACB), or general + CACB...
November 13, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29233153/application-of-different-patella-height-indices-in-patients-undergoing-total-knee-arthroplasty
#4
Bin Xu, Wei-Xing Xu, Di Lu, Hong-Feng Sheng, Xin-Wei Xu, Wei-Guo Ding
BACKGROUND: One complication of total knee arthroplasty (TKA) is patella baja (PB). Patellar tendon shortening and joint line elevation are two main causes of PB. The purpose of this study was to determine the incidence of PB before and after TKA by measuring the patellar height and provide evidence for choosing a suitable index. METHODS: In total, 256 consecutive patients who underwent primary TKA were included in this study. Radiographic measurements were performed; the Insall-Salvati (IS) index, modified IS (MIS) index, Blackburne-Peel (BP) index, and Caton-Deschamps (CD) index were computed; and the incidence of PB was calculated before and after the operation...
December 12, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29232265/the-value-of-preoperative-exercise-and-education-for-patients-undergoing-total-hip-and-knee-arthroplasty-a-systematic-review-and-meta-analysis
#5
Rebecca Moyer, Kathy Ikert, Kristin Long, Jacquelyn Marsh
BACKGROUND: Existing evidence regarding the value of preoperative education and/or exercise (prehabilitation) for patients undergoing total joint replacement is conflicting. The purpose of this study was to conduct an updated, comprehensive systematic review with meta-analyses to determine the longitudinal effects and efficacy of prehabilitation on postoperative outcomes in patients undergoing total hip arthroplasty (THA) or total knee arthroplasty (TKA). METHODS: We searched 11 electronic databases (MEDLINE, AMED, CINAHL, Embase, Scopus, ProQuest, PEDro, SportDiscus, PsycINFO, and Cochrane) from their inception to May 2016 for randomized controlled trials that compared changes in pain, function, strength, anxiety, and hospital length of stay following THA or TKA...
December 12, 2017: JBJS Reviews
https://www.readbyqxmd.com/read/29232186/cemented-or-cementless-total-knee-arthroplasty-comparative-results-of-200-cases-at-a-minimum-follow-up-of-11-years
#6
Jean-Louis Prudhon, Régis Verdier
INTRODUCTION: Since 1996 we have been using cementless fixation with hydroxyapatite (HA) coating. The purpose of this paper is to compare survivorship of a series of 100 cemented Total Knee Arthroplasty (TKA) to a similar series of 100 cementless with a follow up of 11-16 years. Material methods: Both TKA are mobile bearing total knee postero-stabilized. They can be used with cement or without cement. Among 1030 New Wave TKATM implanted from 2002 to 2015 we have identified 100 cemented TKAs and 100 cementless TKAs...
2017: SICOT-J
https://www.readbyqxmd.com/read/29229416/comparison-of-arthroscopic-and-conservative-treatments-for-knee-osteoarthritis-a-5-year-retrospective-comparative-study
#7
Xiangzheng Su, Chunbao Li, Weixiong Liao, Jianheng Liu, Hao Zhang, Ji Li, Zhongli Li
PURPOSE: To compare the effectiveness of arthroscopic and conservative treatments in patients with knee osteoarthritis (KOA) with 5 years of follow-up. METHODS: Patients diagnosed with Kellgren-Lawrence grade 2 to 4 KOA who underwent arthroscopic or conservative treatment from May 2005 to May 2012 were included. The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) total score was collected 1, 2, 3, 4, and 5 years after the initial treatment, and the number of patients who underwent total knee arthroplasty (TKA) at every time point was recorded...
December 8, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29228407/-sport-after-total-knee-and-hip-arthroplasty
#8
Friedrich Boettner, Maximilian F Kasparek, Kilian Rueckl, Christian Liebau
The introduction of new materials and better implant coatings seems to provide the prerequisites for more intense physical activities after total joint arthroplasties of the lower extremity. Despite recent advances in implant design and materials, recommendations for sport after total joint arthroplasty have not been updated over the past 20 years. The introduction of modern uncemented fixation as well as highly cross-linked polyethylene into total hip arthroplasty allow for a more active life-style without an increased risk of loosening or complications...
December 2017: Sportverletzung Sportschaden: Organ der Gesellschaft Für Orthopädisch-Traumatologische Sportmedizin
https://www.readbyqxmd.com/read/29227786/novel-anatomical-based-surgical-technique-for-positioning-of-the-patellar-component-in-total-knee-arthroplasty
#9
Chahine Assi, Nadim Kheir, Camille Samaha, Moussa Chamoun, Kaissar Yammine
The patella remains one of the main sources of post-operative complication following total knee arthroplasty surgery. Optimal positioning of the patellar component is still a controversy with no clear-cut guidelines. Instead of choosing an empirical position, we described a novel surgical technique to better locate the patellar button based on the individual patellar anatomy of each patient.
2017: SICOT-J
https://www.readbyqxmd.com/read/29226208/brucella-arthritis-following-total-knee-arthroplasty-in-a-patient-with-hemophilia-a-case-report
#10
Seyed Mohammad J Mortazavi, Mohammad R Sobhan, Hamed Mazoochy
Total knee arthroplasty (TKA) is a rewarding procedure in patients with hemophilia and end stage knee hemophilic arthropathy. However, this procedure might be associated with complications such as infection. There periprosthetic joint infection in patients with hemophilia is very well known, though we are not aware of any previous report on Brucella infection in this group of patients. Here, we reported a 28-year old man with Brucella infection of total knee replacement who initially underwent a conservative treatment followed bya two-stage revision...
September 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/29226201/acute-primary-total-knee-arthroplasty-for-proximal-tibial-fractures-in-elderly
#11
Mohammad M Sarzaeem, Mohammad M Omidian, Gholamhossein Kazemian, Alireza Manafi
Background: Proximal tibial fractures in elderly patients with osteoporosis or knee osteoarthritis (OA) are challenging cases. In the current study, we present our experience with uncommon acute primary total knee arthroplasty (PTKA) in this patient population. Methods: PTKAs were performed following proximal tibial fractures in 30 consecutive patients over 60 years of age with osteoporosis or knee OA between 2005 and 2009. Three constrained condylar knees (CCK) and no hinged knee prosthesis were used...
September 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/29225426/incidence-and-predictors-of-total-knee-arthroplasty-following-knee-arthroscopy
#12
Tristan Camus, Jiho Han, Feroz Osmani, Norman Scott, William J Long
Objective: The purpose of this study was to determine the effectiveness of knee arthroscopy (KA) in patients with symptomatic meniscal tears or mechanical symptoms and OA, by using conversion to TKA as a final outcome measure. Methods: Retrospective review of all patients with OA who underwent KA in our practice. Results: 1215 KAs were reviewed; 3.9% underwent conversion to TKA at an average of 3.2 years. Conclusion: KA plays a role in delaying TKA in knees with meniscal tears and mechanical symptoms with concurrent OA...
March 2018: Journal of Orthopaedics
https://www.readbyqxmd.com/read/29225424/parametric-analysis-of-electromechanical-and-fatigue-performance-of-total-knee-replacement-bearing-with-embedded-piezoelectric-transducers
#13
Mohsen Safaei, R Michael Meneghini, Steven R Anton
Total knee arthroplasty (TKA) is a common procedure in the United States; it has been estimated that about 4 million people are currently living with primary knee replacement in this country. Despite huge improvements in material properties, implant design, and surgical techniques, some implants fail a few years after surgery. A lack of information about in vivo kinetics of the knee prevents the establishment of a correlated intra- and postoperative loading pattern in knee implants. In this study, a conceptual design of an ultra high molecular weight (UHMW) knee bearing with embedded piezoelectric transducers is proposed, which is able to measure the reaction forces from knee motion as well as harvest energy to power embedded electronics...
September 2017: Smart Materials & Structures
https://www.readbyqxmd.com/read/29225159/histopathology-of-periarticular-non-hereditary-heterotopic-ossification
#14
REVIEW
Kristin L Foley, Nader Hebela, Mary Ann Keenan, Robert J Pignolo
In the mature adult skeleton, new bone formation is normally restricted to regeneration of osseous tissue at sites of fracture. However, heterotopic ossification, or the formation of bone outside the normal skeleton, can occur within muscle, adipose, or fibrous connective tissue. Periarticular non-hereditary heterotopic ossification (NHHO) may occur after musculoskeletal trauma, following CNS injury, with certain arthropathies, or following injury or surgery that is often sustained in the context of age-related pathology...
December 7, 2017: Bone
https://www.readbyqxmd.com/read/29224993/embolization-of-the-geniculate-arteries-is-an-effective-treatment-of-recurrent-hemarthrosis-following-total-knee-arthroplasty-that-can-be-safely-repeated
#15
Laurens J van Baardewijk, Yvonne L Hoogeveen, Ingrid C M van der Geest, Leo J Schultze Kool
BACKGROUND: Recurrent hemarthrosis is a late complication in up to 1.6% of patients following total knee arthroplasty (TKA). In the absence of intrinsic coagulopathy, one etiology is bleeding of hypertrophic vascular synovium. The aim of this study is to evaluate the clinical outcome of patients referred to our center for angiographic embolization of geniculate arteries for recurrent hemarthrosis following TKA. METHODS: We retrospectively studied a cohort of patients who were referred for geniculate artery embolization following TKA between August 2011 and September 2016...
November 24, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29224992/experience-influences-the-agreement-and-reliability-of-tibial-component-positioning-in-total-knee-arthroplasty
#16
Derek F Amanatullah, Graham D Pallante, Matthieu P Ollivier, Alexander W Hooke, Matthew P Abdel, Michael J Taunton
BACKGROUND: Poor rotation of the tibial component is associated with unfavorable total knee arthroplasty outcomes. Some surgeons utilize the tibial tubercle (TT method), while others utilize the femoral cam (Box method) as a rotational landmark during total knee arthroplasty. Our purpose is to determine the reproducibility of 2 methods for establishing intra-operative tibial component rotation, while also comparing the effect of level of training. METHODS: Twelve surgeons positioned and sized a symmetric tibial component on 7 cadaver knees...
November 13, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29224991/femoral-component-axial-rotation-in-the-gap-balancing-approach-to-total-knee-arthroplasty-measurement-by-computed-tomography
#17
André Y Aihara, Fabiano N Cardoso, Pedro Debiex, Antonio M Castro, Marcus V M Luzo, Artur R C Fernandes
BACKGROUND: Rotational malalignment of total knee arthroplasty (TKA) is a potential cause for revision surgery; therefore, it is important to have valid criteria for evaluation of normal component rotational alignment. Because computed tomography (CT) is considered the most accurate method to assess the rotational alignment of prosthetic components, the objectives in this study were define the femoral component (FC) rotation by measuring the posterior condylar angle (PCA) and the condylar twist angle (CTA) in a patient population that underwent gap-balancing TKA; determine the reliability of the FC rotation by using these measurements; evaluate the inter-relationship between the PCA and CTA; and finally evaluate the frequency and agreement in identification of the medial epicondyle sulcus (MES)...
December 7, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29223445/brucella-infection-following-total-joint-arthroplasty-a-systematic-review-of-the-literature
#18
Seung-Ju Kim, Hyun-Soo Park, Dong-Woo Lee, Jong Hun Kim
INTRODUCTION: The aim of this systematic review was to analyze the results of published treatment options in Brucella infection following total joint arthroplasty (TJA). METHODS: We performed a systematic review of the literature regarding outcomes of Brucella infection after TJA (hip and knee). We searched multiple databases for articles in the area published from 1950 to 2016. RESULTS: A total of 18 patients (12 male and 6 female; mean age 59 years) from 14 published studies were identified...
December 6, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/29223404/computer-assisted-total-knee-arthroplasty-is-there-a-difference-between-image-based-and-imageless-techniques
#19
Reza M Tabatabaee, Mohammad R Rasouli, Mitchell G Maltenfort, Robert Fuino, Camilo Restrepo, Ali Oliashirazi
BACKGROUND: Image-based and imageless computer-assisted total knee arthroplasty (CATKA) has become increasingly popular. This study aims to compare outcomes, including perioperative complications and transfusion rate, between CATKA and conventional total knee arthroplasty (TKA), as well as between image-based and imageless CATKA. METHODS: Using the 9th revision of the International Classification of Diseases codes, we queried the Nationwide Inpatient Sample database from 2005 to 2011 to identify unilateral conventional TKA, image-based, and imageless CATKAs as well as in-hospital complications and transfusion rates...
November 21, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29223403/older-adults-undergoing-total-hip-or-knee-arthroplasty-chronicling-changes-in-their-multimorbidity-profile-in-the-last-two-decades
#20
Siran M Koroukian, Nicholas K Schiltz, David F Warner, Alison K Klika, Carlos A Higuera-Rueda, Wael K Barsoum
BACKGROUND: Despite the ubiquitous use of total hip arthroplasty (THA) and total knee arthroplasty (TKA) in older adults, little is known about the multimorbidity (MM) profile of this patient population. This study evaluates the temporal trends of MM, hypothesizing that patients with MM have had an increasingly greater representation in THA and TKA patients over time. METHODS: Data on a US representative sample of older adults from the linked Health and Retirement Study and Medicare data from 1993 to 2012 were used...
November 13, 2017: Journal of Arthroplasty
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