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joint replacement surgery

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https://www.readbyqxmd.com/read/29435622/high-bacterial-contamination-rate-of-electrocautery-tips-during-total-hip-and-knee-arthroplasty
#1
Hussein Abdelaziz, Akos Zahar, Christian Lausmann, Thorsten Gehrke, Helmut Fickenscher, Eduardo M Suero, Matthias Gebauer, Mustafa Citak
PURPOSE: The aim of the study was to quantify the bacterial contamination rate of electrocautery tips during primary total joint replacement (TJR), as well as during aseptic and septic revision TJR. METHODS: A total of 150 electrocautery tips were collected between April and July 2017. TJR surgeries were divided into three groups: (1) primary, (2) aseptic and (3) septic revisions. In each group, a total of 50 electrocautery tips were collected. A monopolar electrocautery with a reusable stainless-steel blade tip was used in all cases...
February 12, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29428675/a-human-osteoarthritis-osteochondral-organ-culture-model-for-cartilage-tissue-engineering
#2
P Yeung, W Zhang, X N Wang, C H Yan, B P Chan
RATIONALE: In vitro human osteoarthritis (OA)-mimicking models enabling pathophysiological studies and evaluation of emerging therapies such as cartilage tissue engineering are of great importance. OBJECTIVE: We describe the development and characterization of a human OA osteochondral organ culture. We also apply this model for evaluation of the phenotype maintenance of a human MSC derived engineered cartilage, as an example of emerging therapeutics, under long term exposure to the OA-mimicking environment...
February 4, 2018: Biomaterials
https://www.readbyqxmd.com/read/29426007/how-do-patients-trade-off-surgeon-choice-and-waiting-times-for-total-joint-replacement-a-discrete-choice-experiment
#3
Deborah A Marshall, Ken Deal, Barbara Conner-Spady, Eric Bohm, Gillian Hawker, Lynda Loucks, Karen V MacDonald, Tom Noseworthy
OBJECTIVE: Patients face significant waiting times for hip and knee total joint replacement (TJR) in publicly funded healthcare systems. We aimed to assess how surgeon selection and reputation affect patients' willingness to wait for TJR. DESIGN: We assessed patient preferences using a discrete choice experiment questionnaire with 12 choice scenarios administered to patients referred for TJR. Based on qualitative research, pre- and pilot-testing, we characterized each scenario by five attributes: surgeon reputation, surgeon selection, waiting time to surgeon visit (initial consultation), waiting time to surgery, and travel time to hospital...
February 6, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29424145/-mid-term-follow-up-study-of-hip-arthroplasty-for-internal-fixation-failure-of-femoral-intertrochanteric-fractures-in-the-elderly
#4
Qi-Cai Sun, Xuan-Liang Ru, Zhi-Gang Qian, Li-Dong Wu, Shi-Gui Yan, Xiang-Hua Wang
OBJECTIVE: To retrospective analysis the mid-term follow-up effect of hip joint replacement in elderly patients with failure of intertrochanteric fractures of the hip joint internal fixation. METHODS: From December 2008 to December 2011, 32 elderly patients underwent arthroplasty after intertrochanteric fracture fixation failure, of which, 4 death cases were excluded from the study, and the remaining 28 cases were in the study group. The age of patients ranged from 69 to 83 years old with a mean of 75 years old...
July 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29423757/comparing-the-validity-and-responsiveness-of-the-eq-5d-5l-to-the-oxford-hip-and-knee-scores-and-sf-12-in-osteoarthritis-patients-1-year-following-total-joint-replacement
#5
Barbara L Conner-Spady, Deborah A Marshall, Eric Bohm, Michael J Dunbar, Tom W Noseworthy
PURPOSE: (1) To assess responsiveness of the EQ-5D-5L compared to Oxford hip and knee scores and the SF-12 in osteoarthritis patients undergoing total hip (THR) or knee (TKR) replacement surgery; (2) to compare distribution and anchor-based methods of assessing responsiveness. METHODS: Questionnaires were mailed to consecutive patients following surgeon referral for primary THR or TKR and 1 year post-surgery. We assessed effect size (ES), standardized response mean (SRM), and standard error of measurement (SEM)...
February 8, 2018: Quality of Life Research
https://www.readbyqxmd.com/read/29416861/prevalence-and-management-of-intrathecal-morphine-induced-pruritus-in-new-zealand-m%C3%A4-ori-healthcare-recipients
#6
Jennifer M Woods, Anecita Gigi Lim
Aims and objectives: The aim of this article was to determine whether the incidence of intrathecal morphine-induced pruritus (ITMI) was influenced by ethnicity, age or gender in relation to orthopaedic versus caesarean surgeries. Background: The use of intrathecal morphine for patients undergoing total hip and knee joint replacements and for lower segment caesarean sections (LSCS) has gained popularity worldwide since its introduction over 30 years ago. Several international studies show that morphine delivered via the intrathecal route is an effective and safe method of pain relief...
February 2018: British Journal of Pain
https://www.readbyqxmd.com/read/29409422/results-of-the-volar-approach-in-proximal-interphalangeal-joint-arthroplasty
#7
Scott F M Duncan, Anthony A Smith, Kevin J Renfree, Ross M Dunbar, Marianne V Merritt
BACKGROUND: Most hand surgeons use a dorsal approach for proximal interphalangeal (PIP) joint implant arthroplasty. However, a volar approach offers the advantage of no disturbance to the extensor mechanism, thus allowing early initiation of active range of motion. We examined our results in patients who underwent PIP joint arthroplasty via a volar approach. METHODS: Using a retrospective chart review, we evaluated the outcomes of patients undergoing PIP joint arthroplasty through a volar approach between 2001 and 2005 by 3 fellowship-trained hand surgeons at our institution...
March 2018: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29409292/structural-interaction-between-bone-and-implants-due-to-arthroplasty-of-the-first-metatarsophalangeal-joint
#8
Marco A Martínez Bocanegra, Javier Bayod Lopez, A Vidal-Lesso, Ricardo Becerro de Bengoa Vallejo, Raúl Lesso-Arroyo
BACKGROUND: Currently, the metatarsophalangeal joint replacement through a restorative arthroplasty, where implants are used, is a viable invasive surgical medical procedure in the treatment of severe cases of osteoarthritis in this joint, better known as hallux rigidus. However, few things are known about the postoperative complications that implants can cause on the joint, like Swanson and Tornier implants.Research in this field can provide a valuable information that would help the specialist surgeon in the decision-making during the selection of the more suitable joint implant in each patient, as well as the redesign of the devices, to make them more efficient, durable and biocompatible with the human body...
October 20, 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29409218/use-of-masquelet-s-technique-for-treating-the-first-metatarsophalangeal-joint-in-cases-of-gout-combined-with-a-massive-bone-defect
#9
Feng Liu, Ruo-Kun Huang, Ming Xie, Hao Pan, Jing-Jing Zhao, Bo Lei
BACKGROUND: To examine the safety and efficacy of Masquelet's technique as a surgical method for treating the first metatarsophalangeal joint in cases of gout accompanied by a massive bone defect. METHODS: From January 2010 to January 2016, eleven patients (7 males and 4 females; mean age 33.1 years; range, 23-43 years) received surgical treatment for a first metatarsophalangeal joint tophus which caused a serious bone defect. The first metatarsophalangeal bone defects ranged from 3-6cm, or nearly 50% of the length of normal bone...
February 17, 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29404964/are-contemporary-femoral-components-sizing-and-design-likely-to-affect-functional-results-in-tka-a-mathematical-model-of-an-implanted-knee-to-predict-knee-forces
#10
A Tecame, M Ferrari, B Violante, G Calafiore, R Papalia, P Adravanti
PURPOSE: This study is aimed to investigate the effects of the choice of femoral and tibial components on several mechanical outputs that might be associated with total knee replacement surgery outcomes using a validated computational model: the Kansas knee simulator. METHODS: Two models from the same range of implants were taken into account: Model 1, the femoral component fitted the femoral epiphysis, with physiological positioning of the articulating surface using a 10-mm-thick tibial component, and in Model 2, the femoral component was 4 mm smaller than in Model 1, and a 14-mm-thick tibial component was used with a similar tibial resection and the tibio-femoral joint line was 4 mm more proximal to compensate the increased posterior bone resection and maintain proper soft-tissue tension in flexion...
February 5, 2018: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/29403570/prospective-bundled-payments-in-a-changing-environment-the-experience-of-a-self-funded-state-sponsored-plan
#11
Frank H Lawler, Frank R Wilson, G Keith Smith, Lynn V Mitchell
Background: Healthcare reimbursement, which has traditionally been based on the quantity of services delivered, is currently moving toward value-based reimbursement-a system that addresses the quantity, quality, and cost of services. One such arrangement has been the evolution of bundled payments for a specific procedure or for an episode of care, paid prospectively or through post-hoc reconciliation. Objective: To evaluate the impact of instituting bundled payments that incorporate facility charges, physician fees, and all ancillary charges by the State of Oklahoma HealthChoice public employee insurance plan...
December 2017: American Health & Drug Benefits
https://www.readbyqxmd.com/read/29402731/electromagnetic-navigated-condylar-positioning-after-high-oblique-sagittal-split-osteotomy-of-the-mandible-a-guided-method-to-attain-pristine-temporomandibular-joint-conditions
#12
Moritz Berger, Igor Nova, Sebastian Kallus, Oliver Ristow, Urs Eisenmann, Hartmut Dickhaus, Michael Engel, Christian Freudlsperger, Jürgen Hoffmann, Robin Seeberger
OBJECTIVES: Reproduction of the exact preoperative proximal-mandible position after osteotomy in orthognathic surgery is difficult to achieve. This clinical pilot study evaluated an electromagnetic (EM) navigation system for condylar positioning after high-oblique sagittal split osteotomy (HSSO). STUDY DESIGN: After HSSO as part of 2-jaw surgery, the position of 10 condyles was intraoperatively guided by an EM navigation system. As controls, 10 proximal segments were positioned by standard manual replacement...
December 29, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/29397117/the-association-between-obesity-and-disability-in-survivors-of-joint-surgery-analysis-of-the-health-and-retirement-study
#13
T G Gaulton, L A Fleisher, M D Neuman
BACKGROUND: Obesity is associated with osteoarthritis and the need for joint surgery. Obese patients who undergo joint surgery may have a higher risk of morbidity compared with normal or overweight patients but less is known about their risk of postoperative disability. The primary objective of our study was to determine the association between obesity and the development of new dependence in activities of daily living within 2 years after joint surgery. METHODS: We obtained data from the Health and Retirement Study, a longitudinal survey of older Americans...
January 2018: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29388932/-rehabilitation-of-the-patients-following-the-endoprosthetic-replacement-of-the-joints-of-the-lower-extremities
#14
I M Rud, E A Melnikova, M A Rassulova, A N Razumov, A E Gorelikov
The present article is the analytical review of the literature pertaining to the problem of rehabilitation of the patients following the endoprosthetic replacement of joints of the lower extremities. The relevance of the problem of interest for medical rehabilitation is beyond any doubt. The traditional methods for the rehabilitation of the patients do not always lead to the desired results. The authors discuss in detail the need for and the contemporary approaches to the rehabilitation of the patients who had undergone reconstructive surgery and arthroplasty of the joints of the lower extremities...
December 28, 2017: Voprosy Kurortologii, Fizioterapii, i Lechebnoĭ Fizicheskoĭ Kultury
https://www.readbyqxmd.com/read/29385156/combination-cox-2-inhibitor-and-metformin-attenuate-rate-of-joint-replacement-in-osteoarthritis-with-diabetes-a-nationwide-retrospective-matched-cohort-study-in-taiwan
#15
Chieh-Hua Lu, Chi-Hsiang Chung, Chien-Hsing Lee, Chang-Hsun Hsieh, Yi-Jen Hung, Fu-Huang Lin, Chang-Huei Tsao, Po-Shiuan Hsieh, Wu-Chien Chien
BACKGROUND: Osteoarthritis (OA) is the most common form of arthritis associated with an increased prevalence of type 2 diabetes mellitus (T2DM), however their impact on decreasing joint replacement surgery has yet to be elucidated. This study aimed to investigate if the combination of COX-2 inhibitor and metformin therapy in OA with T2DM were associated with lower the rate of joint replacement surgery than COX-2 inhibitor alone. METHODS: In total, 968 subjects with OA and T2DM under COX-2 inhibitor and metformin therapy (case group) between 1 January to 31 December 2000 were selected from the National Health Insurance Research Database of Taiwan, along with 1936 patients were the 1:2 gender-, age-, and index year-controls matched without metformin therapy (control group) in this study...
2018: PloS One
https://www.readbyqxmd.com/read/29381612/treatment-of-mandibular-ameloblastoma-involving-the-mandibular-condyle-resection-and-concomitant-reconstruction-with-a-custom-hybrid-total-joint-prosthesis-and-iliac-bone-graft
#16
Mathilde Sarlabous, David J Psutka
AIM: To describe the treatment of ameloblastoma involving the mandibular body and condyle in 3 patients. METHODS: This report describes 3 patients with large ameloblastomas (2 were second recurrences) treated by partial mandibular resection. Involvement of the mandibular condyle in these 3 patients made the reconstruction more challenging. Reconstruction included immediate temporomandibular joint replacement by a custom-made alloplastic total joint and mandibular body (Zimmer-Biomet, Jacksonville, FL)...
January 29, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29377313/sost-sclerostin-improves-post-traumatic-osteoarthritis-and-inhibits-mmp2-3-expression-after-injury
#17
Jiun C Chang, Blaine A Christiansen, Deepa K Murugesh, Aimy Sebastian, Nicholas R Hum, Nicole M Collette, Sarah Hatsell, Aris N Economides, Craig D Blanchette, Gabriela G Loots
Patients with anterior cruciate ligament (ACL) rupture are 2X as likely to develop post traumatic osteoarthritis (PTOA). Annually, there are ∼900,000 knee injuries in the US, which account for ∼12% of all OA cases. PTOA leads to reduced physical activity, deconditioning of the musculoskeletal system and in severe cases, requires joint replacement to restore function. Therefore, treatments that would prevent cartilage degradation post injury would provide attractive alternatives to surgery. Sclerostin (Sost), a Wnt antagonist and a potent negative regulator of bone formation has recently been implicated in regulating chondrocyte function in osteoarthritis (OA)...
January 26, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29375941/use-of-spinal-cord-stimulation-in-elderly-patients-with-multi-factorial-chronic-lumbar-and-non-radicular-lower-extremity-pain
#18
Michelle Granville, Aldo F Berti, Robert E Jacobson
Spinal cord stimulation (SCS) is an effective treatment for chronic back and limb pain. The criteria for use of SCS for specific problems such as failed back surgery syndrome (FBSS), peripheral neuropathic pain and residual pain after joint replacement is well established. With an aging population, there are more patients presenting with a combination of various multi-factorial chronic pain problems rather than from a single clear cause. It is not uncommon to see patients with chronic back pain years after spine surgery with new additional pain in the area of joint replacement or due to peripheral neuropathy...
November 17, 2017: Curēus
https://www.readbyqxmd.com/read/29374669/trends-and-determinants-of-length-of-stay-and-hospital-reimbursement-following-knee-and-hip-replacement-evidence-from-linked-primary-care-and-nhs-hospital-records-from-1997-to-2014
#19
Edward Burn, Christopher J Edwards, David W Murray, Alan Silman, Cyrus Cooper, Nigel K Arden, Rafael Pinedo-Villanueva, Daniel Prieto-Alhambra
OBJECTIVES: To measure changes in length of stay following total knee and hip replacement (TKR and THR) between 1997 and 2014 and estimate the impact on hospital reimbursement, all else being equal. Further, to assess the degree to which observed trends can be explained by improved efficiency or changes in patient profiles. DESIGN: Cross-sectional study using routinely collected data. SETTING: National Health Service primary care records from 1995 to 2014 in the Clinical Practice Research Datalink were linked to hospital inpatient data from 1997 to 2014 in Hospital Episode Statistics Admitted Patient Care...
January 27, 2018: BMJ Open
https://www.readbyqxmd.com/read/29373821/pharyngeal-airway-space-changes-after-condylar-replacement-and-mandibular-advancement-surgery
#20
Holly Yuen, P Emile Rossouw, Larry M Wolford, Hongyue Wang
PURPOSE: The aim of this study was to examine the total volume and cross-sectional areas of the pharyngeal airway after bilateral condylar replacement and mandibular advancement surgery. MATERIALS AND METHODS: A total of 137 patients (126 women and 11 men) underwent bilateral temporomandibular joint total joint replacement performed by 1 surgeon. A subsample of 30 patients who underwent condylar replacement and only mandibular advancement were evaluated for impact on the airway...
January 3, 2018: Journal of Oral and Maxillofacial Surgery
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