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https://www.readbyqxmd.com/read/28231649/optimal-timing-for-hemoglobin-concentration-determination-after-total-knee-arthroplasty-day-1-versus-day-2
#1
Mahdi Yacine Khalfaoui, Charles Godavitarne, Michael C P Wilkinson
Purpose: Postoperative hemoglobin (Hb) determination remains an essential parameter for quantifying blood loss following total knee replacement (TKR) surgery and guiding transfusion practice. In this study we aimed to ascertain the optimal timing for Hb determination postoperatively and assess its relationship to serum hematocrit (Hct). Materials and Methods: This was a retrospective cohort analysis of 61 consecutive patients undergoing preoperative, day 1 and day 2 Hb and Hct concentration determination following TKR surgery...
March 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28228047/visible-glove-perforation-in-total-knee-arthroplasty
#2
Lee Qunn Jid, Mak Wai Ping, Wong Yiu Chung, Wai Yuk Leung
PURPOSE: The risk of superficial surgical site infection (SSI) and periprosthetic joint infection (PJI) after glove perforation is not evident. This study was to identify risk factors for glove perforation in primary TKR (total knee replacement) and the risk of subsequent superficial SSI and PJI. METHODS AND MATERIALS: Results of visible glove perforation of both inner and outer gloves during TKR were reviewed. A case-control analysis was performed on the preoperative and operative variables to identify predictive risk factors for glove perforation...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28227997/an-autoclavable-wireless-palpation-instrument-for-minimally-invasive-surgery
#3
Anish S Naidu, Abelardo Escoto, Omar Fahmy, Rajni V Patel, Michael D Naish, Anish S Naidu, Abelardo Escoto, Omar Fahmy, Rajni V Patel, Michael D Naish, Abelardo Escoto, Omar Fahmy, Michael D Naish, Anish S Naidu, Rajni V Patel
Minimally invasive surgery prevents surgeons from manually palpating organs to locate subsurface tumors and other structures. One solution is to use ultrasound; however, it is not always reliable. Various minimally invasive surgery instruments that provide tactile feedback have been proposed to augment ultrasound sensing for tumor localization; however, current designs have limitations such as cumbersome wiring, difficulty in manipulation, lack of sterilizability and high cost. This paper presents a novel, autoclavable, wireless, hand-held palpation instrument that uses a custom, low-cost, disposable tactile sensor to provide tactile and kinesthetic force feedback...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28223094/a-decade-of-the-catalonian-arthroplasty-register-racat-variability-exhaustivity-and-survival-of-prostheses-between-2005-and-2014
#4
J Arias-de la Torre, A Capdevila, O Martínez, L Domingo, M Marinelli, N Robles, J Nardi, L Puig-Verdié, F Pallisó, M Espallargues
BACKGROUND AND AIM: The Catalonian Arthroplasty Register (RACat) is a public health-based population register used to analyse and evaluate hip and knee replacements in Catalonia. The aim of this study is to present the outcomes after 10 years in operation (January 2005-December 2014). METHODOLOGY: Using the information from the RACat and the minimum basic data set at hospital discharge, an analysis was made of the quality and exhaustivity of the data, as well as a descriptive analysis of the patients, prostheses, and care process...
February 17, 2017: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/28209371/the-effect-of-patient-age-at-intervention-on-risk-of-implant-revision-after-total-replacement-of-the-hip-or-knee-a-population-based-cohort-study
#5
Lee E Bayliss, David Culliford, A Paul Monk, Sion Glyn-Jones, Daniel Prieto-Alhambra, Andrew Judge, Cyrus Cooper, Andrew J Carr, Nigel K Arden, David J Beard, Andrew J Price
BACKGROUND: Total joint replacements for end-stage osteoarthritis of the hip and knee are cost-effective and demonstrate significant clinical improvement. However, robust population based lifetime-risk data for implant revision are not available to aid patient decision making, which is a particular problem in young patient groups deciding on best-timing for surgery. METHODS: We did implant survival analysis on all patients within the Clinical Practice Research Datalink who had undergone total hip replacement or total knee replacement...
February 13, 2017: Lancet
https://www.readbyqxmd.com/read/28199931/a-personalized-3d-printed-prosthetic-joint-replacement-for-the-human-temporomandibular-joint-from-implant-design-to-implantation
#6
David C Ackland, Dale Robinson, Michael Redhead, Peter Vee Sin Lee, Adrian Moskaljuk, George Dimitroulis
Personalized prosthetic joint replacements have important applications in cases of complex bone and joint conditions where the shape and size of off-the-shelf components may not be adequate. The objective of this study was to design, test and fabricate a personalized 3D-printed prosthesis for a patient requiring total joint replacement surgery of the temporomandibular joint (TMJ). The new 'Melbourne' prosthetic TMJ design featured a condylar component sized specifically to the patient and fixation screw positions that avoid potential intra-operative damage to the mandibular nerve...
February 6, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28197692/feasibility-of-establishing-an-australian-acl-registry-a-pilot-study-by-the-australian-orthopaedic-association-national-joint-replacement-registry-aoanjrr
#7
Christina Lekkas, Richard Clarnette, Stephen E Graves, Sophia Rainbird, David Parker, Michelle Lorimer, Roger Paterson, Justin Roe, Hayden Morris, Julian A Feller, Peter Annear, Ben Forster, David Hayes
PURPOSE: Rupture of the anterior cruciate ligament (ACL) is a common and debilitating injury that impacts significantly on knee function and risks the development of degenerative arthritis. The outcome of ACL surgery is not monitored in Australia. The optimal treatment is unknown. Consequently, the identification of best practice in treating ACL is crucial to the development of improved outcomes. The Australian Knee Society (AKS) asked the Australian Orthopaedic Association (AOA) to consider establishing a national ACL registry...
February 14, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28196043/measures-of-the-appropriateness-of-elective-orthopaedic-joint-and-spine-procedures
#8
Jeffrey N Katz, Amelia R Winter, Gillian Hawker
Total knee arthroplasty and total hip arthroplasty are 2 of the most commonly performed elective orthopaedic procedures. They are remarkably successful in relieving pain and improving function in individuals with advanced, symptomatic arthritis. Since, in addition to providing benefits, these procedures pose risks, it is important to provide clinicians with guidance in determining which patients should undergo total joint replacement surgery. The development of the RAND approach in 1986 and its application to total hip and knee replacement have enabled clinicians, payers, and others to assess the appropriateness of past and current procedures for particular patients...
February 15, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28193498/a-prospective-cohort-study-examining-medical-and-social-factors-associated-with-engagement-in-life-activities-following-total-hip-replacement
#9
Crystal MacKay, Fiona Webster, Viji Venkataramanan, Jessica Bytautas, Anthony V Perruccio, Rosalind Wong, Lisa Carlesso, Aileen M Davis
OBJECTIVES: Studies show limited improvement in the frequency of engaging in life activities after joint replacement. However, there is a paucity of research that has examined factors, including other life events, which influence engagement following total hip replacement (THR). This research sought to identify factors associated with engaging in life activities following THR. METHODS: A prospective cohort study was conducted with 376 people who had a THR for osteoarthritis (OA)...
February 10, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28190568/predictable-factors-of-deep-venous-thrombosis-in-patients-undergoing-spine-surgery
#10
Terumasa Ikeda, Hiroshi Miyamoto, Kazuki Hashimoto, Masao Akagi
BACKGROUND: DVT is one of the major postoperative complications of joint replacement surgery of the lower extremity which can cause catastrophic complications such as pulmonary embolism. However, little is known about the incidence of DVT after spine surgery. The purpose of this study was to examine predictable factors of DVT after spine surgery. METHODS: This study included 194 patients who underwent spine surgery (104 males, 90 females, mean age 65.7 years). Postoperative DVT was detected using duplex ultrasonography (DUS)...
February 9, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28185755/the-james-a-rand-young-investigator-s-award-administrative-claims-vs-surgical-registry-capturing-outcomes-in-total-joint-arthroplasty
#11
Joseph T Patterson, David Sing, Erik N Hansen, Bobby Tay, Alan Zhang
BACKGROUND: Administrative claims in total joint arthroplasty are used for observational studies and payment adjustments under the Comprehensive Care for Joint Replacement (CJR) legislation. Claims data have not been validated against prospective surgical outcome registries for primary total hip (THA) or knee arthroplasty (TKA). We hypothesized that significant differences in reported comorbidity and adverse event measures exist between administrative claims and prospective registry data relevant to payment adjudication under the CJR reimbursement model...
February 6, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28175998/-neglect-like-symptoms-after-operations-on-the-upper-extremities
#12
K Welsch, P Bialas, V Köllner, T Volk
BACKGROUND: Neglect-like symptoms (NLS) describe the experience of perceiving a limb as foreign and could be detected in chronic pain disorders as well as after knee joint replacement. The aim of the present study was to find out whether patients with and without NLS after surgery of the upper extremities differ with respect to pain intensity and psychosocial variables and if NLS are associated with chronic postoperative pain (CPSP). METHODS: In this study 241 patients were interviewed using a validated questionnaire preoperatively as well as 1 day, 4 weeks, 3 months and 6 months postoperatively...
February 7, 2017: Der Schmerz
https://www.readbyqxmd.com/read/28173989/analysis-of-the-factors-that-correlate-with-increased-knee-adduction-moment-during-gait-in-the-early-postoperative-period-following-total-knee-arthroplasty
#13
Takeo Nagura, Yasuo Niki, Kengo Harato, Takeshi Mochizuki, Yoshimori Kiriyama
BACKGROUND: Analysis of dynamic knee loading during gait is essential to prevent mechanical failures following total knee arthroplasty. External knee adduction moment during gait is the primary factor producing medial joint reaction force, and an increase in the moment is directly related to an increase in the medial compartment load on the knee. METHODS: Knee adduction moment during gait in 39 knees of 32 female patients following a posterior stabilized knee replacement with a single surgeon was evaluated at 1...
February 4, 2017: Knee
https://www.readbyqxmd.com/read/28167869/bearings-in-hip-arthroplasty-joint-registries-vs-precision-medicine-review-article
#14
REVIEW
Mark J Pearson, Liam M Grover, Janet M Lord, Simon W Jones, Edward T Davis
BACKGROUND: Precision medicine has been adopted in a range of clinical settings where omics data have led to greater characterisation of disease and stratification of patients into subcategories of phenotypes and pathologies. However, in orthopaedics, precision medicine lags behind other disciplines such as cancer. Joint registries have now amassed a huge body of data pertaining to implant performance which can be broken down into performance statistics for different material types in different cohorts of patients...
February 2017: HSS Journal: the Musculoskeletal Journal of Hospital for Special Surgery
https://www.readbyqxmd.com/read/28167247/results-and-limitations-of-humeral-head-resurfacing-105-cases-at-a-mean-follow-up-of-5-years
#15
K Soudy, C Szymanski, C Lalanne, C Bourgault, A Thiounn, A Cotten, C Maynou
BACKGROUND: The objective of this study was to assess clinical and computed-tomography (CT) outcomes at least 2 years after humeral head resurfacing to treat concentric gleno-humeral osteoarthritis. HYPOTHESIS: Humeral head resurfacing provides similar outcomes to those achieved with stemmed humeral head implants. MATERIALS AND METHODS: This single-centre retrospective studyincluded 40 Copeland™ and 65 Aequalis™ humeral resurfacing heads implanted between 2004 and 2012...
February 3, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28164047/management-of-infected-total-knee-arthroplasty-by-a-new-innovative-customized-articulating-knee-spacer-an-early-experience
#16
Dhiraj P Marothi, Vipin Sharma, Ashish N Sheth, Vikram I Shah, L Bharath, J A Pachore
INTRODUCTION: Management of infected total knee arthroplasty (TKA) is a challenge to patient and surgeon alike. Two-stage exchange is the universally acclaimed method to tackle this problem. Various spacer devices are available for the first stage surgery for local delivery of antibiotics. Here, we report our experience with management of infected TKA patients with our indigenously designed and produced knee spacer. CASE REPORT: Between 2012 and 2013, 28 patients with infected total knee replacement (TKR) have been managed by our indigenous knee spacer...
September 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28161531/skeletal-muscle-vitamin-d-in-patients-with-end-stage-osteoarthritis-of-the-knee
#17
Tara C Brennan-Speranza, David Mor, Rebecca S Mason, John R Bartlett, Gustavo Duque, Itamar Levinger, Pazit Levinger
Muscle function is often impaired in patients with knee osteoarthritis (OA), with reduced strength and increased pain. The role of vitamin D and the vitamin D-endocrine pathway in muscle health has recently been placed in the spotlight, with various groups reporting positive effects on muscle development, function and health. Recently, it has been shown that uptake into muscle of the specialized vitamin D binding protein (DBP) is dependent on the endocytic receptor, megalin. Here we analyse circulating vitamin D, and muscle DBP, megalin and the cognate vitamin D receptor (VDR) in patients with knee OA and compare them to asymptomatic controls...
February 1, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28157083/effect-of-perioperative-bacteriological-safety-on-hip-joint-infection-after-hip-replacement
#18
Iwona Morawik, Mirosław Jabłoński
BACKGROUND: In terms of clinical importance, deep infections are the most severe and problematic complications of hip replacement, and limiting the risk of these complications continues to pose a medical and organisational challenge. The aim of this retrospective study was to compare the incidence of early deep infection after hip arthroplasty in two 5-year periods separated by a long interval (1985-1989 and 2005-2009) with respect to analysing changes in the conditions of perioperative bacteriological safety...
May 5, 2016: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28155828/elbow-arthroplasty-in-patients-with-bleeding-disorders-preliminary-report-of-a-single-centre-experience
#19
Andrzej Leń, Jerzy Mirosław Jaworski, Joanna Zdziarska, Bartłomiej Skotnicki, Bogusław Frańczuk
Spontaneous or traumatic hemorrhages into joints that occur in the course of congenital bleeding disorders due to deficiencies of plasma clotting factors lead to early and extensive damage to joints. Arthropathy in those patients most commonly affects the knee, elbow and ankle. Replacement surgery of the damaged joint is the only effective way to treat such advanced changes. Although arthritis of the elbow is quite common, surgery is rarely undertaken; hence relevant reports in the literature are limited to individual or small groups of cases...
March 23, 2016: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28152257/imaging-near-orthopedic-hardware
#20
REVIEW
Matthew F Koff, Alissa J Burge, Kevin M Koch, Hollis G Potter
: Over one million total joint replacement surgeries were performed in the US in 2013 alone, and this number is expected to more than double by 2030. Traditional imaging techniques for postoperative evaluation of implanted devices, such as radiography, computerized tomography, or ultrasound, utilize ionizing radiation, suffer from beam hardening artifact, or lack the inherent high contrast necessary to adequately evaluate soft tissues around the implants, respectively. Magnetic resonance imaging (MRI), due to its ability to generate multiplanar, high-contrast images without the use of ionizing radiation is ideal for evaluating periprosthetic soft tissues but has traditionally suffered from in-plane and through-plane data misregistration due to the magnetic susceptibility of implanted materials...
February 2, 2017: Journal of Magnetic Resonance Imaging: JMRI
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