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Acta Orthopaedica

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https://www.readbyqxmd.com/read/29161930/no-radiological-and-clinical-advantages-with-patient-specific-positioning-guides-in-total-knee-replacement
#1
Justin A M J Van Leeuwen, Finnur Snorrason, Stephan M Röhrl
Background and purpose - Although the use of patient-specific positioning guides (PSPGs) in total knee replacement (TKR) in theory is promising, the technique has not yet proven its superior- ity compared with the conventional method. We compared radio- logical alignment and clinical outcome between TKR performed with the use of PSPGs and the conventional operation method. Patients and methods - 3 hospitals participated in a prospec- tive trial. 109 patients were randomized to either the conventional method or to the use of PSPGs...
November 22, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/29160139/high-and-rising-burden-of-hip-and-knee-osteoarthritis-in-the-nordic-region-1990-2015
#2
Aliasghar A Kiadaliri, L Stefan Lohmander, Maziar Moradi-Lakeh, Ingemar F Petersson, Martin Englund
Background and purpose - Osteoarthritis (OA) imposes a substantial burden on individuals and societies. We report on the burden of knee and hip OA in the Nordic region. Patients and methods - We used the findings from the 2015 Global Burden of Diseases Study to explore prevalence, years lived with disability (YLDs), and disability-adjusted life-years (DALYs) of OA in the 6 Nordic countries during 1990-2015 (population of about 27 million in 2015). Results - During 1990-2015, the number of prevalent OA cases increased by 43% to 1,507,587 (95% uncertainty interval [UI] 1,454,338-1,564,778) in the region...
November 21, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/29160130/the-effect-of-bearing-type-on-the-outcome-of-total-hip-arthroplasty
#3
Rinne M Peters, Liza N Van Steenbergen, Martin Stevens, Paul C Rijk, Sjoerd K Bulstra, Wierd P Zijlstra
Background and purpose - Alternative bearing surfaces such as ceramics and highly crosslinked polyethylene (HXLPE) were developed in order to further improve implant performance of total hip arthroplasties (THAs). Whether these alternative bearing surfaces result in increased longevity is subject to debate. Patients and methods - Using the Dutch Arthroplasty Register (LROI), we identified all patients with a primary, non-metal-on-metal THA implanted in the Netherlands in the period 2007-2016 (n = 209,912). Cumulative incidence of revision was calculated to determine differences in survivorship of THAs according to bearing type: metal-on-polyethylene (MoPE), metal-on-HXLPE (MoHXLPE), ceramic-on-polyethylene (CoPE), ceramic-on-HXLPE (CoHXLPE), ceramic-on-ceramic (CoC), and oxidized-zirconium-on-(HXL)polyethylene (Ox(HXL)PE)...
November 21, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/29160123/fast-tracking-for-total-knee-replacement-reduces-use-of-institutional-care-without-compromising-quality
#4
Konsta J Pamilo, Paulus Torkki, Mikko Peltola, Maija Pesola, Ville Remes, Juha Paloneva
Background and purpose - Fast-tracking shortens the length of the primary treatment period (length of stay, LOS) after total knee replacement (TKR). We evaluated the influence of the fast-track concept on the length of uninterrupted institutional care (LUIC) and other outcomes after TKR. Patients and methods - 4,256 TKRs performed in 4 hospitals between 2009-2010 and 2012-2013 were identified from the Finnish Hospital Discharge Register and the Finnish Arthroplasty Register. Hospitals were classified as fast track (Hospital A) and non-fast track (Hospitals B, C and D)...
November 21, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/29143557/particle-disease-really-does-exist
#5
Jukka Pajarinen, Jiri Gallo, Michiaki Takagi, Stuart B Goodman, Bengt Mjöberg
No abstract text is available yet for this article.
November 16, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/29143546/is-the-proximal-bone-resorption-around-the-femoral-stem-after-hip-arthroplasty-really-caused-by-reduced-stress
#6
(no author information available yet)
No abstract text is available yet for this article.
November 16, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/29119853/high-occurrence-of-osteoarthritic-histopathological-features-unaccounted-for-by-traditional-scoring-systems-in-lateral-femoral-condyles-from-total-knee-arthroplasty-patients-with-varus-alignment
#7
Venkata P Mantripragada, Nicolas S Piuzzi, Terri Zachos, Nancy A Obuchowski, George F Muschler, Ronald J Midura
Background and purpose - A better understanding of the patterns and variation in initiation and progression of osteoarthritis (OA) in the knee may influence the design of therapies to prevent or slow disease progression. By studying cartilage from the human lateral femoral condyle (LFC), we aimed to: (1) assess specimen distribution into early, mild, moderate, and severe OA as per the established histopathological scoring systems (HHGS and OARSI); and (2) evaluate whether these 2 scoring systems provide sufficient tools for characterizing all the features and variation in patterns of OA...
November 9, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/29105554/good-clinical-and-radiographic-outcome-of-cementless-metal-metaphyseal-sleeves-in-total-knee-arthroplasty
#8
Martin Thorsell, Margareta Hedström, Marius C Wick, Rüdiger J Weiss
Background and purpose - The number of revision total knee arthroplasties (TKA) is continuously increasing, leading to a growing need for reliable management of metaphyseal bone loss. We evaluated patients operated with a TKA using metal metaphyseal sleeves for bone defects with a minimum 5-year follow-up. Patients and methods - 37 patients had been operated on. 3 patients died and 3 patients were lost during follow-up. Of the 31 remainders (20 women), 9 had been operated on with a primary TKA and 22 with a revision TKA at the index surgery...
November 6, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/29105547/what-is-appropriate-surveillance-for-metal-on-metal-hip-arthroplasty-patients
#9
Gulraj S Matharu, Andrew Judge, Antti Eskelinen, David W Murray, Hemant G Pandit
The unexpected high revision rates of large-diameter (femoral head sizes of 36 mm or greater) metal-on-metal hip arthroplasties (MoMHAs) have led to worldwide regulatory authorities recommending regular surveillance, even for asymptomatic individuals. However, these recommendations are not evidence-based and are very costly. The rapidly evolving evidence base requires an update regarding the investigation and management of MoMHA patients. This article is the first of 2 (the second article in this series will consider the threshold for performing revision, and the outcomes following ARMD revision surgery: Matharu et al...
November 6, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/29105532/early-aseptic-loosening-of-a-mobile-bearing-total-knee-replacement
#10
Ines Kutzner, Geir Hallan, Paul Johan Høl, Ove Furnes, Øystein Gøthesen, Wender Figved, Peter Ellison
Background and purpose - Registry-based studies have reported an increased risk of aseptic tibial loosening for the cemented Low Contact Stress (LCS) total knee replacement compared with other cemented designs; however, the reasons for this have not been established. We made a retrieval analysis with the aim of identifying the failure mechanism. Patients and methods - We collected implants, cement, tissue, blood, and radiographs from 32 failed LCS Complete cases. Damage to the tibial baseplate and insert was assessed...
November 6, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/29072088/the-association-between-cement-type-and-the-subsequent-risk-of-revision-surgery-in-primary-total-hip-replacement
#11
Lea Trela-Larsen, Adrian Sayers, Ashley William Blom, Jason Crispin John Webb, Michael Richard Whitehouse
Background and purpose - To further improve the success of joint replacement surgery, attention needs to be paid to variations associated with improved or worsened outcomes. We investigated the association between the type of bone cement used and the risk of revision surgery after primary total hip replacement. Methods - We conducted a prospective study of data from the National Joint Registry for England and Wales between April 1, 2003 and December 31, 2013. 199,205 primary total hip replacements performed for osteoarthritis where bone cement was used were included...
October 26, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/29065753/perioperative-adjuvant-corticosteroids-for-postoperative-analgesia-in-knee-arthroplasty
#12
Hasan R Mohammad, Thomas W Hamilton, Louise Strickland, Marialena Trivella, David Murray, Hemant Pandit
Background and purpose - Immediate postoperative pain management offered in knee arthroplasty is suboptimal in up to one-third of patients resulting in high opiate consumption and delayed discharge. In this meta-analysis we investigate the analgesic effect and safety of perioperative adjuvant corticosteroids in knee arthroplasty. Methods - Databases Medline, Embase, and Central were searched for randomized studies comparing the analgesic effect of adjuvant perioperative corticosteroids in knee arthroplasty...
October 25, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/29037093/less-periprosthetic-bone-loss-following-the-anterolateral-approach-to-the-hip-compared-with-the-direct-lateral-approach
#13
Terje O Ugland, Glenn Haugeberg, Svein Svenningsen, Stein H Ugland, Øystein H Berg, Are Hugo Pripp, Lars Nordsletten
Background and purpose - The loss of bone mineral in the proximal femur following hip arthroplasty may increase the fracture risk around uncemented stems. We hypothesized that the surgical approach to the hip might influence bone mineral changes around the femoral stem in patients with a femoral neck fracture (FNF). Patients and methods - This was a pre-specified subgroup analysis (n = 51) of an ongoing randomized trial (n = 120) in patients with FNF. Participants were allocated to an uncemented hemiarthroplasty inserted through a direct lateral (Hardinge) approach or an anterolateral (modified Watson-Jones) approach...
October 17, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28990441/beware-of-predatory-journals
#14
(no author information available yet)
No abstract text is available yet for this article.
October 9, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28946786/preaxial-polydactyly-of-the-foot
#15
Elise B Burger, Martijn Baas, Steven E R Hovius, A Jeannette M Hoogeboom, Christianne A van Nieuwenhoven
Background and purpose - Preaxial polydactyly of the foot is a rare malformation and clinicians are often unfamiliar with the associated malformations and syndromes. In order to give guidelines for diagnostics and referral to a clinical geneticist, we provide an overview of the presentation using a literature review and our own patient population. Patients and methods - The literature review was based on the Human Phenotype Ontology (HPO) project. From the HPO dataset, all phenotypes describing preaxial polydactyly were obtained and related diseases were identified and selected...
September 26, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28946782/marrow-compartment-contribution-to-cortical-defect-healing
#16
Magnus Bernhardsson, Love Tätting, Olof Sandberg, Jörg Schilcher, Per Aspenberg
Background and purpose - Healing of shaft fractures is commonly described as regards external callus. We wanted to clarify the role of the bone marrow compartment in the healing of stable shaft fractures. Patients and methods - A longitudinal furrow was milled along the longitudinal axis of the femoral shaft in mice. The exposed bone marrow under the furrow was scooped out. The mice were then randomized to no further treatment, or to receiving 2 silicone plugs in the medullary canal distal and proximal to the defect...
September 26, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28946781/the-basic-mobility-status-upon-acute-hospital-discharge-is-an-independent-risk-factor-for-mortality-up-to-5-years-after-hip-fracture-surgery
#17
Morten T Kristensen, Henrik Kehlet
Background and purpose - Mortality rates following hip fracture (HF) surgery are high. We evaluated the influence of the basic mobility status on acute hospital discharge to 1- and 5-year mortality rates after HF. Patients and methods - 444 patients with HF ≥60 years (mean age 81 years, 77% women) being pre-fracture ambulatory and admitted from their own homes, were consecutively included in an in-hospital enhanced recovery program and followed for 5 years. The Cumulated Ambulation Score (CAS, 0-6 points, 6 points equals independence) was used to evaluate the basic mobility status on hospital discharge...
September 26, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28942699/is-the-proximal-bone-resorption-around-the-femoral-stem-after-hip-arthroplasty-really-caused-by-reduced-stress
#18
Bengt Mjöberg
No abstract text is available yet for this article.
September 25, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28931340/lessons-learnt-from-early-failure-of-a-patient-trial-with-a-polymer-on-polymer-resurfacing-hip-arthroplasty
#19
Job L C Van Susante, Nico Verdonschot, L Paul A Bom, Pawel Tomaszewski, Pat Campbell, Edward Ebramzadeh, B Wim Schreurs
Background and purpose - Hip resurfacing (HR) is a treatment option promoted for hip arthritis in young and active patients. However, adverse reactions to metal are a concern and the search for non-metallic bearing options proceeds. We present the first clinical study performed in patients using a newly developed hydrophilic polymer-on-polymer hip resurfacing device. Patients and methods - After performing extensive hip simulator tests, biocompatibility testing and animal tests (ISO 14242-1,3; 10993-3,4,5,10,11), approval was obtained from the IRB committee to enroll 15 patients in the first clinical study in humans using this experimental polymer-on-polymer hip resurfacing device...
September 21, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28925312/what-is-the-best-treatment-for-displaced-salter-harris-ii-physeal-fractures-of-the-distal-tibia
#20
Hoon Park, Dong Hoon Lee, Seung Hwan Han, Sungmin Kim, Nam Kyu Eom, Hyun Woo Kim
Background and purpose - The optimal treatment of displaced Salter-Harris (SH) II fractures of the distal tibia is controversial. We compared the outcomes of operative and nonoperative treatment of SH II distal tibial fractures with residual gap of >3 mm. Factors that may be associated with the incidence of premature physeal closure (PPC) were analyzed. Patients and methods - We retrospectively reviewed 95 patients who were treated for SH II distal tibial fractures with residual gap of >3 mm after closed reduction...
September 19, 2017: Acta Orthopaedica
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