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knee bilateral arthroplasty

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https://www.readbyqxmd.com/read/28087396/influence-of-coronal-bowing-on-the-lower-alignment-and-the-positioning-of-component-in-navigation-and-conventional-total-knee-arthroplasty
#1
Hideo Kobayashi, Yasushi Akamatsu, Ken Kumagai, Yoshihiro Kusayama, Masato Aratake, Tomoyuki Saito
BACKGROUND: Coronal alignment is an important factor for the function and longevity of total knee arthroplasty (TKA). Coronal bowing of the lower extremity is common among Asians and it may pose a risk for malalignment of the lower leg and malposition of component. HYPOTHESIS: We hypothesized that coronal bowing itself has a risk for malalignment of the lower leg and malposition of femoral / tibial components and that navigation TKA is beneficial for patients with coronal bowing...
January 10, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28077538/magnesium-sulphate-attenuates-acute-postoperative-pain-and-increased-pain-intensity-after-surgical-injury-in-staged-bilateral-total-knee-arthroplasty-a-randomized-double-blinded-placebo-controlled-trial
#2
H-J Shin, E-Y Kim, H-S Na, T K Kim, M-H Kim, S-H Do
BACKGROUND: We evaluated the effect of magnesium sulphate on increased pain in 44 patients undergoing staged bilateral total knee arthroplasty (TKA). METHODS: The magnesium group (n=22) and the control group (n=22) received magnesium sulphate and isotonic saline, respectively, throughout the surgery. Postoperative pain (visual analogue scale, VAS) at rest and the amounts of patient-controlled analgesia (PCA, fentanyl) and rescue analgesia (ketoprofen) administered during the first 48 h were compared between the two groups and within each group between the first and second TKA...
October 2016: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28065624/outcome-of-unicondylar-knee-arthroplasty-vs-total-knee-arthroplasty-for-early-medial-compartment-arthritis-a-randomized-study
#3
Vikas Kulshrestha, Barun Datta, Santhosh Kumar, Gaurav Mittal
BACKGROUND: With increasing number of patients with early osteoarthritis of knee opting for total knee arthroplasty (TKA), there has been increase in patients dissatisfied with surgical outcomes. It is being presumed that offering unicondylar knee arthroplasty (UKA) to them would improve outcomes. METHODS: Primary objective of our study was to look for any difference in patient-reported outcome and function at 2-year follow-up in patients undergoing UKA as compared to TKA...
December 23, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28033253/postoperative-cognitive-changes-after-total-knee-arthroplasty-under-regional-anesthesia
#4
Young-Tae Jeon, Byung-Gun Kim, Young Ho Park, Hye-Min Sohn, Jungeun Kim, Seung Chan Kim, Seong Soo An, SangYun Kim
BACKGROUND: The type of postoperative cognitive decline after surgery under spinal anesthesia is unknown. We investigated the type of postoperative cognitive decline after total knee arthroplasty (TKA). Neuropsychological testing was conducted and the changes in cerebrospinal fluid (CSF) biomarkers after surgery were evaluated. METHODS: Fifteen patients who required bilateral TKA at a 1-week interval under spinal anesthesia were included. Neuropsychological tests were performed twice, once the day before the first operation and just before the second operation (usually 1 week after the first test) to determine cognitive decline...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28031493/improvement-in-health-related-quality-of-life-after-unilateral-total-knee-arthroplasty-in-patients-with-bilateral-knee-osteoarthritis
#5
Desmond Thiam, Daniel Jing Wen Teh, Hamid Rahmatullah Bin Abd Razak, Andrew Hwee Chye Tan
PURPOSE: To review the outcome of unilateral total knee arthroplasty (TKA) in patients with bilateral knee osteoarthritis (OA) to determine whether unilateral TKA can achieve good health-related quality of life (HRQoL). METHODS: Records of 68 women and 25 men with severe bilateral knee OA who underwent unilateral TKA on the more symptomatic knee by a single surgeon and did not return for the second TKA within 2 years were reviewed. Outcome at 6 months and 2 years was assessed using the mental and physical component summary (MCS and PCS) of the Short-Form 36 (SF-36) for HRQoL as well as the Oxford Knee Score (OKS) and Knee Society Score (KSS) for knee-specific outcome...
December 2016: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28026737/-bilateral-total-knee-arthroplasty-short-term-results
#6
S Křivánek, M Hrubina, M Chmúrny, M Rovňák, M Melišík, L Nečas
PURPOSE OF THE STUDY Evaluation of short-term functional results in patients undergoing one-stage surgery involving sequential bilateral total knee arthroplasty (TKA) and comparison with the results of patients after unilateral TKA. MATERIAL AND METHODS The group with bilateral TKA consisted of 171 patients with 342 total knee replacements treated between 2009 and 2013. The control group included 50 patients with 50 TKAs operated on in the years 2010 to 2012. The indications to bilateral knee replacement included bilateral gonarthrosis, grade III or more in patients who were in good health and had a stable knee joint with axis deviation up to 20 degrees...
2016: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28012721/the-clinical-severity-of-patients-diagnosed-with-an-in-hospital-pulmonary-embolism-following-modern-elective-joint-arthroplasty-is-unrelated-to-the-location-of-emboli-in-the-pulmonary-vasculature
#7
Alejandro Gonzalez Della Valle, Alvaro Blanes Perez, Yuo-Yu Lee, Gregory R Saboeiro, Gabrielle P Konin, Yoshimi Endo, Nigel E Sharrock, Eduardo A Salvati
BACKGROUND: In the event of a postoperative pulmonary embolism (PE), it is generally believed that patients with centrally located emboli will have worse clinical symptoms than those with segmental or subsegmental ones. We studied if a relationship exists between the clinical severity at the time of PE diagnosis and the location of the emboli within the pulmonary vasculature. METHODS: All 269 patients who developed an in-hospital, computed tomography pulmonary angiography-proved, in-hospital PE following elective total hip arthroplasty or total knee arthroplasty in our institution were studied...
November 25, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27995304/patient-specific-instrumentation-versus-conventional-knee-arthroplasty-comparative-study
#8
Vlad Predescu, Catalin Prescura, Razvan Olaru, Liliana Savin, Paul Botez, Bogdan Deleanu
BACKGROUND: The key to a successful knee replacement is restoring normal kinematics with a neutral alignment, thus a hip-knee-ankle (HKA) angle of 180° (within 3° limits). Conventional TKR is proven to have excellent results but relies in extensive visual referencing of bony landmarks. Customised cutting blocks provide accurate bone cuts, also lowering the risk of fat embolism, blood loss and operating time. METHOD: We share our experience comparing two different TKA techniques using patient specific instrumentation (PSI) with the Visionaire knee and conventional instrumentation (CVI) from the same system (Genesis II Smith&Nephew)...
December 19, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27923623/staged-total-knee-arthroplasty-for-bilateral-complex-knee-deformities-from-kashin-beck-disease-and-skeletal-dysplasia
#9
Ming Ling, Xueyuan Wu, Yanhai Chang, Xianghui Dong, Zhengming Sun, Li Ling, Shixun Wu, Bo Yang
This study reported two cases of patients with Grade III Kashin-Beck disease (KBD) with skeletal dysplasia concomitant with complex knee deformity and functional limitation treated by staged total knee arthroplasty (TKA). Detailed pre-operative planning, bone resection, and soft tissue balancing in affected knees were performed in the surgeries in this report. The results demonstrated that TKA could correct lower limb alignment, alleviate knee pain, improve function, and provide good quality of life in people with KBD...
December 3, 2016: Knee
https://www.readbyqxmd.com/read/27919200/bony-ankylosis-of-the-facet-joint-of-the-cervical-spine-in-rheumatoid-arthritis-its-characteristics-and-relationship-to-the-clinical-findings
#10
Haku Iizuka, Yoichi Iizuka, Koichi Okamura, Yukio Yonemoto, Tokue Mieda, Kenji Takagishi
OBJECTIVES: The purpose of this study was to clarify the characteristics of bony ankylosis of the facet joint of the cervical spine in rheumatoid arthritis (RA) patients who required cervical spine surgery, and its relationship to the clinical findings. METHODS: Eighty consecutive RA patients with cervical spine disorder who received initial surgery were reviewed. The occurrence of bony ankylosis of the facet joint of the cervical spine was investigated using computed tomography (CT) before surgery...
December 21, 2016: Modern Rheumatology
https://www.readbyqxmd.com/read/27898989/identifying-an-ideal-time-frame-for-staged-bilateral-total-knee-arthroplasty-to-maximize-functional-outcome
#11
Jared Ze Yang Yeh, Jerry Yongqiang Chen, Wu Chean Lee, Hwei Chi Chong, Hee Nee Pang, Darren Keng Jin Tay, Shi-Lu Chia, Ngai Nung Lo, Seng Jin Yeo
Compared with staged bilateral total knee arthroplasty (TKA), simultaneous bilateral TKA carries a higher risk of cardiac complications, pulmonary complications, and mortality, especially in patients with preexisting cardiopulmonary disease or advanced age. However, the period of time between staged TKAs that would eliminate these increased risks has yet to be determined. The purpose of this study is to evaluate complication rates and functional outcome in patients who underwent staged bilateral TKA and to determine an optimal time frame for the second knee...
November 29, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27895370/lower-red-cell-transfusion-rates-with-use-of-tranexamic-acid-in-single-stage-bilateral-total-knee-arthroplasty-a-retrospective-audit
#12
Muhammad Aziz, Salman Bin Mahmood, Riaz Hussain Lakdawala, Tashfeen Ahmad
Bilateral total knee arthroplasty (BTKA) patients may require blood transfusion which has its risks. Anti-fibrinolytic drugs such as aprotinin, aminocaproic acid and tranexamic acid (TXA) have reduced transfusion requirements in major surgery. This retrospective audit was performed to assess effectiveness of TXA in reducing blood transfusion rate in single-stage sequential BTKA cases operated by a single surgeon. Records of 91 patients given TXA and 80 controls who were operated before 2012 and not given TXA were reviewed...
October 2016: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/27889320/optimizing-effectivity-of-tranexamic-acid-in-bilateral-knee-arthroplasty-a-prospective-randomized-controlled-study
#13
Rajesh N Maniar, Tushar Singhi, Aniket Patil, Gaurav Kumar, Parul Maniar, Jaivardhan Singh
INTRODUCTION: Tranexamic acid (TEA) is used in reducing surgical blood loss. Literature shows no optimal regimen recommended for Bilateral Total Knee Arthroplasty (TKA). We evaluated three TEA regimens differing in dosage, timing and mode of administration in bilateral TKA to identify the most effective regimen to reduce blood loss. METHODS: We prospectively studied three TEA regimens (25 patients each) as follows: (1) two intraoperative, intravenous doses (IOIO), (2) two intraoperative local applications (LALA), and (3) one preoperative plus two intraoperative, intravenous doses (POIOIO)...
November 23, 2016: Knee
https://www.readbyqxmd.com/read/27856067/posterior-cruciate-ligament-retention-or-substitution-during-total-knee-arthroplasty-does-not-affect-long-term-bone-mineral-density-or-quality
#14
Yoshinori Ishii, Hideo Noguchi, Junko Sato, Koji Todoroki, Shin-Ichi Toyabe
BACKGROUND: Physical activity is recognized as one of the factors that influence bone mineral density (BMD) and bone quality after total knee arthroplasty (TKA). According to biomechanical analyses after posterior cruciate ligament (PCL) retaining (PCLR) and substituting (PCLS) TKA, each implant design has different kinematics and kinetics. The purposes of this study were: (1) to perform within-patient comparisons of the midterm and long-term effects of PCL retention in mobile-bearing TKA on proximal femur and tibia BMD and calcaneus bone quality measured using ultrasound and (2) to identify correlations between them...
October 26, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27818985/bilateral-distal-femoral-fracture-after-total-knee-arthroplasty
#15
Fabrício Bolpato Loures, Jorge Rafael Wenck Motta, Rodrigo Sattamini Pires E Albuquerque, João Maurício Barretto, Naason Trindade Cavanellas
The number of total knee arthroplasties has increased exponentially and their indications have been expanded. This procedure presents challenging complications for orthopedic surgeons that are potentially catastrophic for patients. Here, a rare case of simultaneous bilateral periprosthetic fracture of the knee is reported, with discussion of the causal factors, possible management and prophylaxis.
September 2016: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/27802921/impact-of-charlson-indices-and-comorbid-conditions-on-complication-risk-in-bilateral-simultaneous-total-knee-arthroplasty
#16
S K S Marya, Priyadarshi Amit, Chandeep Singh
BACKGROUND: The purpose of this study was to evaluate the influence of Charlson indices and comorbid conditions on the risk of perioperative complications in bilateral simultaneous total knee arthroplasty (BSTKA). METHODS: In our retrospective analysis, 556 patients including 133 males and 423 females (mean age 65.8years), who had undergone bilateral simultaneous total knee arthroplasty between 2011 and 2014 were included. Risk factors (Charlson comorbidity index (CCI), age-adjusted Charlson comorbidity index (ACCI), and comorbid illnesses) and perioperative complications were noted, and subsequently, statistical tests were applied...
December 2016: Knee
https://www.readbyqxmd.com/read/27765053/impact-of-recent-guideline-changes-on-aspirin-prescribing-after-knee-arthroplasty
#17
Sarav S Shah, Alexander M Satin, James R Mullen, Sara Merwin, Mark Goldin, Nicholas A Sgaglione
BACKGROUND: Prior to 2012, the American Academy of Orthopaedic Surgeons (AAOS) and American College of Chest Physicians (ACCP) differed in their recommendations for postoperative pharmacologic venous thromboembolism prophylaxis (VTEP) after total joint arthroplasty. More specifically, aspirin (ASA) monotherapy was not endorsed by the ACCP as an acceptable prophylaxis. In 2012, the ACCP supported ASA monotherapy compared with no prophylaxis. Our aim was to investigate the impact of the convergence of ACCP and AAOS recommendations on surgeon prescribing patterns after knee arthroplasty (KA)...
October 20, 2016: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/27703942/bilateral-spontaneous-midsubstance-patellar-tendon-rupture-after-bilateral-total-knee-arthroplasty
#18
Amyn Rajani, Kumar Kaushik Dash, Neetin P Mahajan, Ritesh Kumar
INTRODUCTION: Patellar tendon rupture can occur due to multiple causes ranging from inflammatory pathologies to episodes of trauma. Extensor mechanism rupture is a rare complication of total knee arthroplasty (TKA). In most of these cases, the failure occurs as avulsion of patellar tendon from tibial tuberosity. We report a rare case with bilateral mid-substance patellar tendon rupture one month after bilateral total knee arthroplasty. CASE PRESENTATION: A 69-year-old male was operated for bilateral grade 4 osteoarthritis...
April 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/27692556/long-term-survival-analysis-of-meniscus-allograft-transplantation-with-bone-fixation
#19
Jong-Min Kim, Seong-Il Bin, Bum-Sik Lee, Nam-Ki Kim, Ju-Ho Song, Jun-Weon Choi, Chang-Rack Lee
PURPOSE: To investigate the long-term clinical results and clinical survival rate of meniscus allograft transplantation (MAT) with bone fixation. METHODS: The inclusion criteria of this study were previous MAT with bone fixation technique in our institution and minimum follow-up duration of 8 years. Potential subjects were identified using the medical records and database that was prospectively collected from December 1996 to December 2005. The exclusion criteria were diffuse International Cartilage Repair Society grade IV articular cartilage degeneration that was not treated with a concomitant or staged cartilage repair procedure...
September 27, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27687177/safety-of-simultaneous-bilateral-total-knee-arthroplasty-using-an-extramedullary-referencing-system-results-from-2098-consecutive-patients
#20
Jai Gon Seo, Sang Min Kim, Jung Min Shin, Youngjun Kim, Byung Hoon Lee
INTRODUCTION: Simultaneous bilateral total knee arthroplasty (TKA) has been associated with a high risk of morbidity and mortality. The orthopedic surgeon must, therefore, decide whether bilateral simultaneous TKA is a safe operation to perform and endeavor to decrease the risk of serious complications or even death. METHODS: This retrospective review included 2098 consecutive patients who underwent bilateral simultaneous TKAs by the protocol used in our institution, including the use of extramedullary instruments to minimize medullary canal invasion and overlapping procedures for both knees to decrease operation time...
November 2016: Archives of Orthopaedic and Trauma Surgery
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