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Acta Orthopaedica

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https://www.readbyqxmd.com/read/28095724/reverse-hybrid-total-hip-arthroplasty
#1
Helge Wangen, Leif I Havelin, Anne M Fenstad, Geir Hallan, Ove Furnes, Alma B Pedersen, Søren Overgaard, Johan Kärrholm, Göran Garellick, Keijo Mäkelä, Antti Eskelinen, Lars Nordsletten
Background and purpose - The use of a cemented cup together with an uncemented stem in total hip arthroplasty (THA) has become popular in Norway and Sweden during the last decade. The results of this prosthetic concept, reverse hybrid THA, have been sparsely described. The Nordic Arthroplasty Register Association (NARA) has already published 2 papers describing results of reverse hybrid THAs in different age groups. Based on data collected over 2 additional years, we wanted to perform in depth analyses of not only the reverse hybrid concept but also of the different cup/stem combinations used...
January 18, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28093922/toll-like-receptors-and-their-soluble-forms-differ-in-the-knee-and-thumb-basal-osteoarthritic-joints
#2
Goncalo Barreto, Jerker Sandelin, Abdelhakim Salem, Dan C Nordström, Eero Waris
Background and purpose - Although the pathogenesis of osteoarthritis (OA) is not well understood, chondrocyte-mediated inflammatory responses (triggered by the activation of innate immune receptors by damage-associated molecules) are thought to be involved. We examined the relationship between Toll-like receptors (TLRs) and OA in cartilage from 2 joints differing in size and mechanical loading: the first carpometacarpal (CMC-I) and the knee. Patients and methods - Samples of human cartilage obtained from OA CMC-I and knee joints were immunostained for TLRs (1-9) and analyzed using histomorphometry and principal component analysis (PCA)...
January 17, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28079428/the-first-6-weeks-of-recovery-after-primary-total-hip-arthroplasty-with-fast-track
#3
Lisette C M Klapwijk, Nina M C Mathijssen, Jeroen C Van Egmond, Bianca M Verbeek, Stephan B W Vehmeijer
Background and purpose - Fast-track protocols have been introduced worldwide to improve the recovery after total hip arthroplasty (THA). These protocols have reduced the length of hospital stay (LOS), and THA in an outpatient setting is also feasible. However, less is known regarding the first weeks after THA with fast track. We examined patients' experiences of the first 6 weeks after hospital discharge following inpatient and outpatient THA with fast track. Patients and methods - In a prospective cohort study, 100 consecutive patients who underwent THA surgery in a fast-track setting between February 2015 and October 2015 received a diary for 6 weeks...
January 12, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28077058/imaging-investigations-before-referral-to-a-sarcoma-center-delay-the-final-diagnosis-of-musculoskeletal-sarcoma
#4
Heidi Buvarp Dyrop, Peter Vedsted, Mathias Rædkjær, Akmal Safwat, Johnny Keller
Background and purpose - The use of point-of-care or local investigations before referral to specialist sarcoma centers as part of a fast-track diagnostic pathway varies, and may affect the time to diagnosis. We wanted to investigate differences in time intervals and proportion of malignancy in patients who were referred after initial diagnostic investigations were performed locally and in patients who were referred without these investigations. Patients and methods - We included 545 consecutive patients who were referred to Aarhus Sarcoma Center for suspected musculoskeletal sarcoma...
January 12, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28077015/atypical-femoral-fractures-mimicking-metastatic-lesions-in-2-patients-taking-denosumab
#5
Daniel C Austin, Michael T Torchia, Christian M Klare, Robert V Cantu
No abstract text is available yet for this article.
January 12, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28077008/is-decreasing-mortality-in-total-hip-and-knee-arthroplasty-patients-dependent-on-patients-comorbidity
#6
Eva N Glassou, Alma B Pedersen, Torben B Hansen
Background and purpose - Mortality after primary total hip and knee arthroplasty (THA and TKA) has declined, and the proportion of THA and TKA patients with comorbid conditions has increased. We therefore wanted to examine changes in comorbidity burden over time and the impact of comorbid on mortality following primary total hip and knee arthroplasty in patients with osteoarthritis. Patients and methods - We used the Danish arthroplasty registers to identify THA and TKA patients from 1996 through 2013. From administrative databases, we collected data on pre-surgery hospital history for all patients, which were used to calculate the Charlson comorbidity index (CCI)...
January 12, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28067103/thromboprophylaxis-for-venous-thromboembolism-prevention-in-hip-fracture-patients
#7
(no author information available yet)
No abstract text is available yet for this article.
January 9, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28067099/dynamic-rsa-for-the-evaluation-of-inducible-micromotion-of-oxford-uka-during-step-up-and-step-down-motion
#8
Kristian Horsager, Bart L Kaptein, Lone RøMer, Peter B Jørgensen, Maiken Stilling
Background and purpose - Implant inducible micromotions have been suggested to reflect the quality of the fixation interface. We investigated the usability of dynamic RSA for evaluation of inducible micromotions of the Oxford Unicompartmental Knee Arthroplasty (UKA) tibial component, and evaluated factors that have been suggested to compromise the fixation, such as fixation method, component alignment, and radiolucent lines (RLLs). Patients and methods - 15 patients (12 men) with a mean age of 69 (55-86) years, with an Oxford UKA (7 cemented), were studied after a mean time in situ of 4...
January 9, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28056595/concomitant-and-previous-osteoporotic-vertebral-fractures
#9
Markus Lenski, Natalie BüSer, Michael Scherer
Background and purpose - Patients with osteoporosis who present with an acute onset of back pain often have multiple fractures on plain radiographs. Differentiation of an acute osteoporotic vertebral fracture (AOVF) from previous fractures is difficult. The aim of this study was to investigate the incidence of concomitant AOVFs and previous OVFs in patients with symptomatic AOVFs, and to identify risk factors for concomitant AOVFs. Patients and methods - This was a prospective epidemiological study based on the Registry of Pathological Osteoporotic Vertebral Fractures (REPAPORA) with 1,005 patients and 2,874 osteoporotic vertebral fractures, which has been running since February 1, 2006...
January 6, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28056583/neglected-traumatic-anterior-dislocation-of-the-hip-open-reduction-using-the-bernese-trochanter-flip-approach-a-case-report
#10
Sven Young, Leonard Banza
No abstract text is available yet for this article.
January 6, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28056570/different-incidences-of-knee-arthroplasty-in-the-nordic-countries
#11
Mika J NiemeläInen, Keijo T MäKelä, Otto Robertsson, Annette W-Dahl, Ove Furnes, Anne M Fenstad, Alma B Pedersen, Henrik M Schrøder, Heini Huhtala, Antti Eskelinen
Background and purpose - The annual number of total knee arthroplasties (TKAs) has increased worldwide in recent years. To make projections regarding future needs for primaries and revisions, additional knowledge is important. We analyzed and compared the incidences among 4 Nordic countries Patients and methods - Using Nordic Arthroplasty Register Association (NARA) data from 4 countries, we analyzed differences between age and sex groups. We included patients over 30 years of age who were operated with TKA or unicompartmental knee arthroplasty (UKA) during the period 1997-2012...
January 6, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/27998211/axial-and-appendicular-body-proportions-for-evaluation-of-limb-and-trunk-asymmetry
#12
Douglas S Weinberg, Raymond W Liu, Samuel Q Li, James O Sanders, Daniel R Cooperman
Background and purpose - When children with irregular body proportions or asymmetric limbs present, it may be unclear where the pathology is located. An improved understanding of the clinical ratio between upper extremity, lower extremity, and spine length may help elucidate whether there is disproportion between the trunk and limbs, and whether there is a reduction deficit of the shorter limb rather than hypertrophy of the longer limb. Patients and methods - We used the Brush Foundation study of child growth and development, which was a prospective, longitudinal study of healthy children between the 1930s and the 1950s, and we collected serial clinical measurements for 290 children at 3,326 visits...
December 21, 2016: Acta Orthopaedica
https://www.readbyqxmd.com/read/27996349/similar-migration-in-computer-assisted-and-conventional-total-knee-arthroplasty
#13
Gunnar Petursson, Anne Marie Fenstad, Øystein Gøthesen, Kristin Haugan, Gro Sævik Dyrhovden, Geir Hallan, Stephan M Röhrl, Arild Aamodt, Kjell G Nilsson, Ove Furnes
Background and purpose - Computer-assisted surgery (CAS) in total knee arthroplasty (TKA) has been used in recent years in the hope of improving the alignment and positioning of the implant, thereby achieving a better functional outcome and durability. However, the role of computer navigation in TKA is still under debate. We used radiostereometric analysis (RSA) in a randomized controlled trial (RCT) to determine whether there are any differences in migration of the tibial component between CAS- and conventionally (CONV-) operated TKA...
December 20, 2016: Acta Orthopaedica
https://www.readbyqxmd.com/read/27996342/sick-leave-in-sweden-before-and-after-total-joint-replacement-in-hip-and-knee-osteoarthritis-patients
#14
Kjerstin Stigmar, Leif E Dahlberg, Caddie Zhou, Helena Jacobson Lidgren, Ingemar F Petersson, Martin Englund
Background and purpose - Little is know about patterns of sick leave in connection with total hip and knee joint replacement (THR and TKR) in patients with osteoarthritis (OA). Patients and methods - Using registers from southern Sweden, we identified hip and knee OA patients aged 40-59 years who had a THR or TKR in the period 2004-2012. Patients who died or started on disability pension were excluded. We included 1,307 patients with THR (46% women) and 996 patients with TKR (56% women). For the period 1 year before until 2 years after the surgery, we linked individual-level data on sick leave from the Swedish Social Insurance Agency...
December 20, 2016: Acta Orthopaedica
https://www.readbyqxmd.com/read/27967333/more-complications-with-uncemented-than-cemented-femoral-stems-in-total-hip-replacement-for-displaced-femoral-neck-fractures-in-the-elderly
#15
Ghazi Chammout, Olle Muren, Evaldas Laurencikas, Henrik Bodéns, Paula Kelly-Pettersson, Helene Sjöö, André Stark, Olof Sköldenberg
Background and purpose - Total hip replacement (THR) is the preferred method for the active and lucid elderly patient with a displaced femoral neck fracture (FNF). Controversy still exists regarding the use of cemented or uncemented stems in these patients. We compared the effectiveness and safety between a modern cemented, and a modern uncemented hydroxyapatite-coated femoral stem in patients 65-79 years of age who were treated with THR for displaced FNF. Patients and methods - In a single-center, single-blinded randomized controlled trial, we included 69 patients, mean age 75 (65-79) and with a displaced FNF (Garden III-IV)...
December 14, 2016: Acta Orthopaedica
https://www.readbyqxmd.com/read/27910738/cartilage-repair-in-the-degenerative-ageing-knee
#16
Mats Brittberg, Andreas H Gomoll, José A Canseco, Jack Far, Martin Lind, James Hui
Background and purpose - Cartilage damage can develop due to trauma, resulting in focal chondral or osteochondral defects, or as more diffuse loss of cartilage in a generalized organ disease such as osteoarthritis. A loss of cartilage function and quality is also seen with increasing age. There is a spectrum of diseases ranging from focal cartilage defects with healthy surrounding cartilage to focal lesions in degenerative cartilage, to multiple and diffuse lesions in osteoarthritic cartilage. At the recent Aarhus Regenerative Orthopaedics Symposium (AROS) 2015, regenerative challenges in an ageing population were discussed by clinicians and basic scientists...
December 2, 2016: Acta Orthopaedica
https://www.readbyqxmd.com/read/27892801/stability-and-migration-across-femoral-varus-derotation-osteotomies-in-children-with-neuromuscular-disorders
#17
Peter Buxbom, Stig Sonne-Holm, Niels Ellitsgaard, Christian Wong
Background and purpose - Studies have indicated that one-third of children with cerebral palsy (CP) develop dislocation of the hip that needs surgical intervention. When hip dislocation occurs during childhood surgical treatment consists of tenotomies, femoral varus derotation osteotomy (VDRO), and acetabuloplasty. Relapse is observed in one-fifth of cases during adolescence. In this prospective cohort study, we performed a descriptive evaluation of translation and rotation across VDROs in children with neuromuscular disorders and syndromes by radiostereometric analysis (RSA)...
November 28, 2016: Acta Orthopaedica
https://www.readbyqxmd.com/read/27892754/amputation-following-internal-fixation-of-an-ankle-fracture-via-the-posterolateral-approach-a-case-report
#18
Henrik Sandelin, Erkki Tukiainen, Mikko Ovaska
No abstract text is available yet for this article.
November 28, 2016: Acta Orthopaedica
https://www.readbyqxmd.com/read/27892753/severe-hip-displacement-reduces-health-related-quality-of-life-in-children-with-cerebral-palsy
#19
Kjersti Ramstad, Reidun B Jahnsen, Terje Terjesen
Background and purpose - Hip displacement is common in children with severe cerebral palsy (CP) and can cause problems such as pain, contractures, and nursing difficulties. Caregiver priorities and child health index of life with disabilities (CPCHILD) is a recently developed measure of health-related quality of life (HRQL) in children with severe CP. The associations between CPCHILD scores and hip displacement have not been investigated. We explored the effect of hip displacement on HRQL. Patients and methods - 67 children were recruited from the population-based Norwegian CP register...
November 28, 2016: Acta Orthopaedica
https://www.readbyqxmd.com/read/27892743/muscle-strength-and-knee-range-of-motion-after-femoral-lengthening
#20
Anil Bhave, Lior Shabtai, Erik Woelber, Arman Apelyan, Dror Paley, John E Herzenberg
Background and purpose - Femoral lengthening may result in decrease in knee range of motion (ROM) and quadriceps and hamstring muscle weakness. We evaluated preoperative and postoperative knee ROM, hamstring muscle strength, and quadriceps muscle strength in a diverse group of patients undergoing femoral lengthening. We hypothesized that lengthening would not result in a significant change in knee ROM or muscle strength. Patients and methods - This prospective study of 48 patients (mean age 27 (9-60) years) compared ROM and muscle strength before and after femoral lengthening...
November 28, 2016: Acta Orthopaedica
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