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https://www.readbyqxmd.com/read/27906096/biological-and-functional-evaluation-of-a-novel-pyrolytic-carbon-implant-for-the-treatment-of-focal-osteochondral-defects-in-the-medial-femoral-condyle-assessment-in-a-canine-model
#1
Samantha L Salkeld, Laura P Patron, Joan C Lien, Stephen D Cook, Deryk G Jones
BACKGROUND: Osteochondral defects continue to be a clinical treatment challenge, and when left untreated, may cause pain and functional impairment. Pyrolytic carbon is a unique isotropic biomaterial used in heart valve and small joint replacements due to its excellent wear properties and biocompatibility with bone and articular cartilage. Therefore, a proposed solution is to utilize a focal pyrolytic carbon hemiarthroplasty implant as an alternative resurfacing treatment strategy for isolated cartilage lesions...
December 1, 2016: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/27904225/the-inferior-medial-genicular-artery-and-its-vascularization-of-the-pes-anserinus-superficialis-a-cadaveric-study
#2
Lena Hirtler, Manuel Ederer, Mike Faber, Patrick Weninger
BACKGROUND: A common method for reconstruction of the anterior cruciate ligament (ACL) is it's replacement by a free avascular graft, using the gracilis and/or semitendinosus tendons. These grafts pass a vulnerable phase in the ligamentization-process during the 1(st) year after reconstruction. The aims of this study were first to evaluate the vascularization of the pes anserinus superficialis (PAS) by the inferior medial genicular artery (IMGA) and second to develop a pedunculated surgical technique for ACL reconstruction, to preserve a maximal amount of natural vascularization of the tendons inserting at the PAS...
November 2016: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/27904224/estimation-of-drug-absorption-in-antibiotic-soaked-bone-grafts
#3
Manish Ramesh Shah, Rukesh R Patel, Randhirsinh V Solanki, Shailendra H Gupta
INTRODUCTION: There is paucity of literature about antibiotic uptake in bone grafts soaked in antibiotic solutions at room temperature in the operation theatre. We hypothesized that if bone grafts are dipped in different strengths of antibiotic solutions for sufficient period, their utilization at the target site helps in localized release of antibiotics in adequate inhibitory concentration to achieve the bacterial regression. The purpose of the study was to find out: (1) Optimum duration, strength, and volume of antibiotic solution required for dipping bone grafts at room temperature prior to the use...
November 2016: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/27900474/bone-scan-usefulness-in-patients-with-painful-hip-or-knee-prosthesis-10-situations-that-can-cause-pain-other-than-loosening-and-infection
#4
REVIEW
Sofia Vaz, Teresa C Ferreira, Lucília Salgado, Frédéric Paycha
In recent years, with the higher median life expectancy, the number of hip and knee replacements has increased. Clinical examination and morphological studies are essential to evaluate patients with a painful arthroplasty. Nuclear medicine examinations also play an important role, their main usefulness being the exclusion of prosthesis complications. Nevertheless, conventional examinations, namely bone scan and white blood cell scintigraphy, can also identify complications, such as loosening and infection. This study describes the normal and pathologic patterns of a bone scan and exemplifies ten common situations that can cause pain in patients with hip or knee arthroplasty, other than loosening and infection, which can be disclosed on a bone scintigraphy...
November 30, 2016: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/27899003/dietary-intake-of-fiber-in-relation-to-knee-pain-trajectories
#5
Zhaoli Dai, Na Lu, Jingbo Niu, David T Felson, Yuqing Zhang
Objective Dietary fiber may reduce knee pain in part by lowering body weight and inflammation. In this study, we assessed whether fiber intake was associated with knee pain development patterns. Methods In a prospective, multicenter cohort of 4,796 men and women aged 45-79 years with or at risk of knee osteoarthritis in Osteoarthritis Initiative, participants were followed up annually for 8 years. Dietary fiber was estimated using a validated food frequency questionnaire at baseline. Group-based trajectory modeling was used to identify WOMAC pain trajectories, which were assessed for the associations with dietary fiber intake using polytomous regression models...
November 29, 2016: Arthritis Care & Research
https://www.readbyqxmd.com/read/27898194/inflammatory-cell-induced-corrosion-in-total-knee-arthroplasty-a-retrieval-study
#6
Arianna Cerquiglini, Johann Henckel, Harry S Hothi, Anna Di Laura, John A Skinner, Alister J Hart
Metal release in patients with joint replacements is associated with local tissue reactions, pain, and ultimately revision of implants. One of the causes of this metal loss is speculated to be due to a mechanism of inflammatory cell-induced corrosion (ICIC). In this knee retrieval study, we aimed to: (1) identify the extent and location of ICI corrosion patterns on our femoral and tibial components and (2) correlate our findings with implant and clinical information. We investigated 28 femoral and 9 tibial components made of polished CoCr for presence of ICIC, using macroscopic and microscopic screening and statistical analyses to identify any significant correlations between our results and clinical information...
November 29, 2016: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/27895368/does-obesity-affects-early-infection-after-total-knee-arthroplasty-a-comparison-of-obese-vs-non-obese-patients
#7
Waseem Ahmed, Riaz Hussain Lakdawala, Yasir Mohib, Aurangzeb Qureshi, Rizwan Haroon Rashid
Surgical site infection (SSI) is a disastrous complication after total knee arthroplasty (TKA) which can cause prosthesis loosening and may end up in septicaemia. The incidence of infection reported to be in the range of 0.3-12.4% for primary TKA. Significantly higher infection rate is found in the morbidly obese patients. The current study compared the immediate rate of post-total knee replacement wound infection in the obese versus non-obese population. The cross-sectional study was conducted at Aga Khan University Hospital (AKUH) and comprised patients undergoing TKA for primary knee osteoarthritis...
October 2016: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/27895006/patients-need-for-tailored-comparative-health-care-information-a-qualitative-study-on-choosing-a-hospital
#8
Nicolien C Zwijnenberg, Michelle Hendriks, Evelien Bloemendal, Olga C Damman, Judith D de Jong, Diana Mj Delnoij, Jany Jd Rademakers
BACKGROUND: The Internet is increasingly being used to provide patients with information about the quality of care of different health care providers. Although online comparative health care information is widely available internationally, and patients have been shown to be interested in this information, its effect on patients' decision making is still limited. OBJECTIVE: This study aimed to explore patients' preferences regarding information presentation and their values concerning tailored comparative health care information...
November 28, 2016: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/27894148/catastrophic-failure-of-regenerex-tibial-components-a-case-series
#9
Gavin Stormont, Daniel Stormont
The aim of this study was to analyze short-term metal failures in well-placed Signature-guided Regenerex (Zimmer Biomet, Warsaw, IN) tibial components in a limited patient series. A retrospective, consecutive, nonrandomized, unblinded study from a limited cohort of young active osteoarthritis patients was conducted. All cases received a Regenerex tibial component which we evaluated for metal failure. Patients met the then current indications from the Center for Medicare and Medicaid Services Guidelines for knee replacement...
November 28, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27894147/reliability-concurrent-validity-and-minimal-detectable-change-for-iphone-goniometer-app-in-assessing-knee-range-of-motion
#10
Saurabh P Mehta, Katherine Barker, Brett Bowman, Heather Galloway, Nicole Oliashirazi, Ali Oliashirazi
Much of the published works assessing the reliability of smartphone goniometer apps (SG) have poor generalizability since the reliability was assessed in healthy subjects. No research has established the values for standard error of measurement (SEM) or minimal detectable change (MDC) which have greater clinical utility to contextualize the range of motion (ROM) assessed using the SG. This research examined the test-retest reproducibility, concurrent validity, SEM, and MDC values for the iPhone goniometer app (i-Goni; June Software Inc...
November 28, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27893476/comparison-of-muscle-involvement-and-posture-between-the-conventional-deadlift-and-a-walk-in-style-deadlift-machine
#11
Benjamin J Snyder, Courtney P Cauthen, Scott R Senger
The deadlift exercise is one of the most effective exercises for developing lower-body strength; however, technique errors can lead to low back injuries. The use of a 'walk-in' deadlift machine removes the weight bar by using a lever system with independent handles on either side of the body. Theoretically, this would allow alignment of the load with the center of gravity, encouraging a more upright torso and decreasing the involvement of the low back extensors. This study compared trunk angle, knee angle and electrical activity of key muscles between the conventional deadlift (CDL) and two foot positions (ball of foot or toe alignment) with pronated grip, (called BallPro and ToePro) of a walk-in deadlift machine among high-skilled and low-skilled lifters...
November 16, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27893033/effect-of-a-decision-aid-on-access-to-total-knee-replacement-for-black-patients-with-osteoarthritis-of-the-knee-a-randomized-clinical-trial
#12
Said A Ibrahim, Marissa Blum, Gwo-Chin Lee, Pekka Mooar, Elina Medvedeva, Aliya Collier, Diane Richardson
Importance: Black patients with advanced osteoarthritis (OA) of the knee are significantly less likely than white patients to undergo surgery. No strategies have been proved to improve access to surgery for black patients with end-stage OA of the knee. Objective: To assess whether a decision aid improves access to total knee replacement (TKR) surgery for black patients with OA of the knee. Design, Setting, and Participants: In a randomized clinical trial, 336 eligible participants who self-identified as black and 50 years or older with chronic and frequent knee pain, a Western Ontario McMaster Universities Osteoarthritis Index score of at least 39, and radiographic evidence of OA of the knee were recruited from December 1, 2010, to May 31, 2014, at 3 medical centers...
November 23, 2016: JAMA Surgery
https://www.readbyqxmd.com/read/27891054/patellofemoral-joint-arthroplasty-our-experience-in-isolated-patellofemoral-and-bicompartmental-arthritic-knees
#13
L Sabatini, M Schirò, F Atzori, G Ferrero, A Massè
INTRODUCTION: Isolated patellofemoral (PF) arthritis is rare, and there is no complete agreement about the best surgical treatment. The operative treatments are total knee arthroplasty and patellofemoral replacement (PFR). The incidence of many early complications of PF arthroplasty has decreased with the introduction of newer designs. Nowadays, the main cause of revision surgery is the progression of tibiofemoral osteoarthritis. In the past, PF arthroplasty was contraindicated in patients with evidence of osteoarthritis or pain in medial or lateral tibiofemoral compartments...
2016: Clinical Medicine Insights. Arthritis and Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27890391/public-reporting-of-hospital-quality-shows-inconsistent-ranking-results
#14
Martin Emmert, Fatemeh Taheri-Zadeh, Benjamin Kolb, Uwe Sander
BACKGROUND: Evidence from the US has demonstrated that hospital report cards might generate confusion for consumers who are searching for a hospital. So far, little is known regarding hospital ranking agreement on German report cards as well as underlying factors creating disagreement. OBJECTIVE: This study examined the consistency of hospital recommendations on German hospital report cards and discussed underlying reasons for differences. METHODS: We compared hospital recommendations for three procedures on four German hospital report cards...
November 14, 2016: Health Policy
https://www.readbyqxmd.com/read/27886697/nonsurgical-management-of-osteoarthritis-knee-pain-in-the-older-adult
#15
REVIEW
Nora Taylor
Symptomatic knee osteoarthritis is a common complaint of many elderly patients in primary care offices. For those unable or unwilling to undergo knee replacement, the primary practitioners' understanding of the strengths and weaknesses of the available treatment modalities for pain relief is critical to successful in-office counseling and expectation management. Treatment requires a multimodal approach of nonpharmacologic and pharmacologic therapies to achieve a maximal clinical benefit. The focus of this review is on the nonsurgical options for treatment of knee osteoarthritis in patients aged 65 and older...
February 2017: Clinics in Geriatric Medicine
https://www.readbyqxmd.com/read/27885798/in-their-own-words-a-short-report-of-patients-experiences-of-recovering-from-total-knee-replacement
#16
Sylvia Gautreau, Catherine Aquino-Russell, Odette N Gould, Michael E Forsythe
No abstract text is available yet for this article.
November 24, 2016: Musculoskeletal Care
https://www.readbyqxmd.com/read/27882029/effects-of-comprehensive-rehabilitation-training-in-combination-with-multi-mode-analgesia-on-body-function-recovery-after-tumor-type-knee-replacement
#17
Junjuan Zhang, Yahan Wang, Guangyu Yang, Jing Liu, Junjie Wang
OBJECTIVE: To discuss the significance of comprehensive rehabilitation training combined with multimodal analgesia (MMA) for the early knee function recovery of patients with knee bone tumor who underwent prosthesis replacement operation. METHODS: Sixty patients with knee bone tumor who underwent prosthesis replacement operation were selected and randomly divided into two groups according to rehabilitation training and postoperative analgesic methods, namely, observation group and control group, 30 cases in each group...
September 2016: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/27881118/electrolyte-disorders-and-aging-risk-factors-for-delirium-in-patients-undergoing-orthopedic-surgeries
#18
Li-Hong Wang, Dong-Juan Xu, Xian-Jiao Wei, Hao-Teng Chang, Guo-Hong Xu
BACKGROUND: At present, the exact mechanism of postoperative delirium has not been elucidated. The purpose of this study was to analyze the incidence of delirium in patients undergoing orthopedic surgeries and to explore possible related factors. METHODS: This is a retrospective study. We used 582 patients who had undergone orthopedic surgery between January 2011 and December 2014. The surgeries consisted of 155 cases of internal fixation for intertrochanteric fracture (IFIF), 128 cases of femoral head replacement (FHR), 169 cases of total hip arthroplasty (THA) and 130 cases of total knee arthroplasty (TKA)...
November 23, 2016: BMC Psychiatry
https://www.readbyqxmd.com/read/27880970/total-knee-arthroplasty-what-to-expect-a-survey-of-the-members-of-the-dutch-knee-society-on-long-term-recovery-after-total-knee-arthroplasty
#19
Jaap J Tolk, Marieke C van der Steen, Rob P A Janssen, Max Reijman
The rate of satisfaction after total knee arthroplasty (TKA) is consistently reported around 80%, leaving one in five patients unsatisfied to some extent. Fulfillment of expectations is reported as the strongest predictor of treatment satisfaction. In this study, we aimed to evaluate what Dutch orthopedic surgeons assume are realistic expectations for recovery 1 year after TKA. We invited the members of the Dutch Knee Society (DKS) to fill out a web-based questionnaire. For expectation measurement, the validated Dutch version of the Hospital for Special Surgery (HSS) knee replacement expectations survey was used...
November 23, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27878804/assessment-of-cardiovascular-risk-in-patients-undergoing-total-joint-alloplasty-the-crash-joint-study
#20
Pawel Legosz, Marcin Kotkowski, Anna E Platek, Pawel Maldyk, Bartosz Krzowski, Anna Rys, Karolina Semczuk, Filip M Szymanski, Krzysztof J Filipiak
BACKGROUND: Risk assessment is of particular importance for patients undergoing surgical interventions. Orthopedic procedures, especially total joint alloplasty are major procedure associated with high perioperative risk, as well as one of the highest rates of complications. The aim of the present study was to establish the prevalence of classical and non-classical cardiovascular risk factors in patients undergoing total hip or knee alloplasty. METHODS: The CRASH-JOINT (Cardiovascular Risk Assessment ScHeme in JOINT alloplasty) was a prospective, epidemiological study performed in consecutive patients scheduled for total joint (hip or knee) replacement surgery...
November 23, 2016: Kardiologia Polska
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