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https://www.readbyqxmd.com/read/28526569/total-joint-replacement-for-neglected-posterior-knee-dislocation-following-septic-arthritis-after-arthroscopy
#1
Yusuf Öztürkmen, Yunus Emre Akman, Ethem Ayhan Ünkar, Erhan Şükür
This report presents the first case of a knee dislocation following septic arthritis after arthroscopy. A 65-year-old woman had an arthroscopy with irrigation and debridement (I&D) of the joint and microfracture for the chondral lesions. She had complaints of postarthroscopic infection but non-steroidal anti-inflammatory medication and local ice compression was recommended. She revisited her physician twice and at the last visit she had a large purulent effusion in her knee. The gram stain of the joint fluid aspirate demonstrated gram-positive cocci and the cultures grew methicilline-sensitive Staphylococcus aureus...
May 16, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28523427/-total-ankle-arthroplasty-with-simultaneous-subtalar-fusion
#2
J Mainzer, P Rippstein
OBJECTIVE: Pain free weight bearing ability with orthograde hindfoot position and preserved tibiotalar motion. INDICATIONS: Symptomatic arthritis of the ankle and subtalar joint, additional subtalar hindfoot malalignment. CONTRAINDICATIONS: Absolute: acute infection, noncorrectable ligamentous instability or bony defects, restricted perfusion, diabetic foot syndrome. Relative: inability to comply with postoperative partial weight bearing, only moderate symptoms of subtalar arthritis, smoking, intricate soft tissue situation...
May 18, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28522364/inhibition-of-mir-181a-protects-female-mice-from-transient-focal-cerebral-ischemia-by-targeting-astrocyte-estrogen-receptor-%C3%AE
#3
Creed M Stary, Lijun Xu, Le Li, Xiaoyun Sun, Yi-Bing Ouyang, Xiaoxing Xiong, Jing Zhao, Rona G Giffard
Whether the effect of miR-181a is sexually dimorphic in stroke is unknown. Prior work showed protection of male mice with miR-181a inhibition. Estrogen receptor-α (ERα) is an identified target of miR181 in endometrium. Therefore we investigated the separate and joint effects of miR-181a inhibition and 17β-estradiol (E2) replacement after ovariectomy. Adult female mice were ovariectomized and implanted with an E2- or vehicle-containing capsule for 14d prior to 1h middle cerebral artery occlusion (MCAO). Each group received either miR-181a antagomir or mismatch control by intracerebroventricular injection 24h before MCAO...
May 15, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28521989/synthesis-of-strontium-chondroitin-sulfate-and-the-evaluation-of-its-capability-to-attenuate-osteoarthritis
#4
F B Ma, N Liu, N Hu, C Y Wen, B Tang
Osteoarthritis (OA) is the most prevalent musculoskeletal disorder and the leading cause of joint disability in elderly patients. In this study, we fabricated strontium chondroitin sulfate (SrCS), a new polysaccharide-metal ion complex that is the combination of chondroitin sulfate and strontium, which are two widely adopted chemicals in OA clinical management. The structural, chemical compositions and morphology of as-fabricated SrCS were systematically investigated. Cell proliferation test, RT-PCR and preliminary animal studies were conducted to evaluate the clinical potential of SrCS on OA treatment...
August 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28521834/incidence-of-total-hip-or-knee-replacement-due-to-osteoarthritis-in-relation-to-thyroid-function-a-prospective-cohort-study-the-nord-tr%C3%A3-ndelag-health-study
#5
Alf Inge Hellevik, Marianne Bakke Johnsen, Arnulf Langhammer, Anne Marie Fenstad, Ove Furnes, Kjersti Storheim, John Anker Zwart, Gunnar Flugsrud, Lars Nordsletten
BACKGROUND: To study whether thyroid function was associated with risk of hip or knee replacement due to primary osteoarthritis. METHODS: In a prospective cohort study, data from the second and third survey of the Nord-Trøndelag Health Study were linked to the Norwegian Arthroplasty Register in order to identify total hip or knee replacement as a result of primary osteoarthritis. RESULTS: Among 37 891 participants without previously known thyroid disease we recorded 978 total hip replacements (THRs) and 538 total knee replacements (TKRs) during a median follow-up time of 15...
May 18, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28512080/using-text-messaging-in-long-term-arthroplasty-follow-up-a-pilot-study
#6
Oliver Blocker, Alison Bullock, Rhidian Morgan-Jones, Adel Ghandour, James Richardson
BACKGROUND: Patient-reported outcome measures (PROMs) and mobile technology have the potential to change the way patients are monitored following joint replacement surgery. OBJECTIVE: The aim of this study was to determine the feasibility of text messaging to record PROMs in long-term follow-up of hip and knee arthroplasty. Our participants were 17 patients 2-years-plus post hip or knee arthroplasty attending clinic with a mobile telephone number on record. METHODS: A simple PROM (Oswestry Very Short Form) was texted to the patient...
May 16, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28511839/the-implication-of-the-osteolysis-threshold-and-interfacial-gaps-on-periprosthetic-osteolysis-in-cementless-total-hip-replacement
#7
Hamidreza Alidousti, Neil W Bressloff
Osteolysis around joint replacements may develop due to migration of wear particles from the joint space into gaps between the interface bone and the implant where they can accumulate in high concentrations to cause tissue damage. Osteolysis may appear in various postoperative times and morphological shapes which can be generalized into linear and focal. However, there are no clear explanations on the causes of such variations. Patients' degree of sensitivity to polyethylene particles (osteolysis thresholds), the local particle concentration and the access route provided by the interface gaps have been described as determining factors...
May 5, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28510734/predictors-of-and-outcomes-following-orthopaedic-joint-surgery-in-patients-with-early-rheumatoid-arthritis-followed-for-20-years
#8
James M Gwinnutt, Deborah P M Symmons, Alexander J MacGregor, Jacqueline R Chipping, Chloe Lapraik, Tarnya Marshall, Mark Lunt, Suzanne M M Verstappen
Objectives.: To analyse predictors and outcomes of major orthopaedic surgery in a cohort of RA patients followed for 20 years. Methods.: Patients were recruited to the Norfolk Arthritis Register from 1990 to 1994. Demographic and clinical variables (including the HAQ and swollen and tender joint counts) were assessed at baseline; the 2010 ACR/EULAR RA classification criteria were applied. Patients reported incident comorbidities and major orthopaedic joint surgery (replacement, synovectomy, fusion, excision) when reassessed at years 1, 2, 3, 5, 7, 10, 15 and 20...
May 16, 2017: Rheumatology
https://www.readbyqxmd.com/read/28509584/the-influence-of-the-crutch-setup-on-stability-and-weight-bearing-parameters-in-post-total-hip-replacement-surgery-patients-during-quiet-standing
#9
Francesco Esposito, Marco Freddolini, Leonardo Latella, Palmina Braccio, Massimiliano Marcucci, Andrea Corvi
PURPOSE: The purpose of this study is to evaluate the influence of the crutch setup on standing, in post total hip replacement (THR) surgery patients. MATERIALS AND METHODS: Thirty patients after THR were randomly assigned to walking with the elbow flexed (EF) or elbow straight (ES) crutch setup. Subjects were asked to stand on a force platform in a comfortable position with the crutch positioned on the unaffected side, facing forward for 10 seconds. Centre of pressure total path and maximal excursion were evaluated in both medio-lateral and anterior-posterior planes...
May 16, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28508110/joint-non-uniform-sampling-of-all-incremented-time-delays-for-quicker-acquisition-in-protein-relaxation-studies
#10
Mateusz Urbańczyk, Michał Nowakowski, Wiktor Koźmiński, Krzysztof Kazimierczuk
NMR relaxometry plays crucial role in studies of protein dynamics. The measurement of longitudinal and transverse relaxation rates of [Formula: see text]N is the main source of information on backbone motions. However, even the most basic approach exploiting a series of [Formula: see text]N HSQC spectra can require several hours of measurement time. Standard non-uniform sampling (NUS), i.e. random under-sampling of indirect time domain, typically cannot reduce this by more than 2-4[Formula: see text] due to relatively low "compressibility" of these spectra...
May 15, 2017: Journal of Biomolecular NMR
https://www.readbyqxmd.com/read/28507967/surgery-of-a-rare-case-of-multiple-synovial-osteochondromatosis-of-the-hip-joint
#11
Yi Min Zhang, Xiaoguang Liu
INTRODUCTION: Primary synovial osteochondromatosis of the hip is a benign disorder, which is not frequently seen clinically. The characteristic of this disease is proliferation of synovium and formation of loose bodies inside the joint. It is known that only the loose bodies derived from synovium were called synovial osteochondromatosis. Although it can take place in any joint, the knee is most commonly affected, involvement of the hip joint is relatively rare. We report a young man who has multiple synovial osteochondromatosis in his left hip...
November 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28507956/an-unusual-case-of-giant-cell-tumor-of-first-metatarsal-a-rare-case-report-and-review-of-literature
#12
Kumar Prashant, Tulsi Das Bhattacharyya, Herman Frank, Prema Ram
INTRODUCTION: Giant cell tumor (GCT) or osteoclastoma is an osteolytic, mostly benign but locally aggressive tumor occurring in young adults at the epiphysis. Area of predilection is mainly long bones (85-90%). 4% of GCT are also found in iliac bone, spine and only 2% in hand (of which GCT phalanges are more common than metacarpal). GCT of metatarsal is a very rare occurrence with very few cases being reported so far. We report a case of GCT 1(st) metatarsal in a 40-year-old male which is a very rare entity...
November 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28507780/current-concepts-in-elbow-arthroplasty
#13
REVIEW
Daniel Bachman, Akin Cil
Distal humeral replacement and the total elbow are two commonly-used arthroplastiesEach prosthesis has evolving indications and surgical techniquesRecent changes in device design and implantation methods are due to biomechanical and clinical outcome-based researchNew prostheses and methods provide: better elbow kinematics, more durable bearings and longer-lasting joint replacement potential Cite this article: EFORT Open Rev 2017;2:83-88. DOI: 10.1302/2058-5241.2.160064.
April 2017: EFORT Open Rev
https://www.readbyqxmd.com/read/28507182/association-between-dairy-product-consumption-and-incidence-of-total-hip-arthroplasty-for-osteoarthritis
#14
Sultana Monira Hussain, Flavia M Cicuttini, Graham G Giles, Stephen E Graves, Anita E Wluka, Yuanyuan Wang
OBJECTIVE: The aim of this prospective cohort study was to determine whether dairy product consumption was associated with the incidence of total hip arthroplasty for osteoarthritis (OA). METHODS: There were 38,924 participants from the Melbourne Collaborative Cohort Study who had dairy product consumption recorded in 1990-1994. The incidence of total hip arthroplasty for OA during 2001-2013 was determined by linking cohort records to the Australian Orthopaedic Association National Joint Replacement Registry...
May 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28507180/outcome-measures-used-in-arthroplasty-trials-systematic-review-of-the-2008-and-2013-literature
#15
Bethan L Richards, Peter D H Wall, Andrew P Sprowson, Jasvinder A Singh, Rachelle Buchbinder
OBJECTIVE: Previously published literature assessing the reporting of outcome measures used in joint replacement randomized controlled trials (RCT) has revealed disappointing results. It remains unknown whether international initiatives have led to any improvement in the quality of reporting and/or a reduction in the heterogeneity of outcome measures used. Our objective was to systematically assess and compare primary outcome measures and the risk of bias in joint replacement RCT published in 2008 and 2013...
May 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28502351/malalignment-correction-of-the-lower-limb-before-during-and-after-total-ankle-arthroplasty
#16
REVIEW
Taggart T Gauvain, Michael A Hames, William C McGarvey
One of the main challenges in ankle replacement is correction of any deformities in the operative limb. Deformity can be found proximal and distal to the ankle joint as well as in the ankle joint. There are static and dynamic deformities that can create unbalanced ankle joints causing early and often catastrophic failure. Surgeons must recognize the deformities that are present and use sound judgment to balance the ankle joint with procedures before, during, or after total ankle implantation. This article helps clinicians to identify deformity and provides a basic template to consider how to address each challenge...
June 2017: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/28501110/arachidonic-acid-causes-hidden-blood-loss-like-red-blood-cell-damage-through-oxidative-stress-reactions
#17
Tao Yuan, Yu Cong, Jia Meng, Hong Qian, Wei Ye, Wen-Shuang Sun, Jian-Ning Zhao, Ni-Rong Bao
BACKGROUND: Hidden blood loss (HBL) often occurs in the prosthetic replacement for joint, but the mechanism is still not clear. MATERIALS AND METHODS: This study tried to establish an animal model of HBL by injecting arachidonic acid (AA) into the Sprague-Dawley rats. Different concentrations of AA were injected into the tail veins of the rats, and blood samples were collected before and after administration at 24, 48, and 72 h. A complete blood count was obtained by to find the hemoglobin (Hb) and red blood cell (RBC) count changes...
May 1, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28497455/hip-sonography-background-technique-and-common-mistakes-results-debate-and-politics-challenges
#18
Reinhard Graf
Developmental dysplasia of the hip (DDH) is the commonest 'congenital' disease of the locomotor system throughout the world. According to the World Health Organisation (WHO) Bone & Joint Decade (2000-2010) 10%-15% of patients who are under the age of 50 when they require a hip replacement do so because of infant hip dysplasia.The background; technique and common mistakes; results; debate and politics; and the challenges of infant hip sonography are reviewed.
May 8, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28497248/-aseptic-loosening-of-total-ankle-replacement-one-stage-revision-ankle-arthroplasty
#19
G Pagenstert, M D Wimmer, M Jacxsens, C L Saltzman, A Barg
OBJECTIVE: To revise one or both loosened prosthesis components, to achieve postoperative pain relief, and preserve ankle range of motion. INDICATIONS: Aseptic loosening of the tibial and/or talar ankle prosthesis components without substantial bone defect of the tibial or talar bone stock. CONTRAINDICATIONS: General surgical or anesthesiological risks, infections, critical soft tissue conditions, nonmanageable hindfoot instability, neurovascular impairment of the lower extremity, neuroarthropathy (e...
May 11, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28496293/the-effect-of-dopaminergic-medication-on-joint-kinematics-during-haptic-movements-in-individuals-with-parkinson-s-disease
#20
Kuan-Yi Li, Pei-Yi Chu, Kristen A Pickett
This study examined whether altered joint angular motion during haptic exploration could account for a decline in haptic sensitivity in individuals with PD by analyzing joint position data during haptic exploration of a curved contour. Each participant's hand was passively moved by a robotic arm along the edges of a virtual box (5 cm × 15 cm) with a curved left wall. After each trial, participants indicated whether the contour was curved or straight. Visual, auditory, and tactile cues were occluded, and an electrogoniometer recorded shoulder and elbow joint angles during each trial...
2017: Behavioural Neurology
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