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Acta Orthopaedica

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https://www.readbyqxmd.com/read/30014747/structural-abnormalities-detected-by-knee-magnetic-resonance-imaging-are-common-in-middle-aged-subjects-with-and-without-risk-factors-for-osteoarthritis
#1
Jaanika Kumm, Aleksandra Turkiewicz, Fan Zhang, Martin Englund
Background and purpose - Few data are available regarding structural changes present in knees without radiographically evident osteoarthritis (OA). We evaluated the prevalence of findings suggestive of knee OA by magnetic resonance imaging (MRI) in middle-aged subjects without radiographic OA with or without OA risk factors. Patients and methods - 340 subjects from the Osteoarthritis Initiative, aged 45-55 years (51% women) with Kellgren-Lawrence grade 0 in both knees, who had 3T knee MR images were eligible...
July 17, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29987945/incidence-and-demographics-of-giant-cell-tumor-of-bone-in-the-netherlands-first-nationwide-pathology-registry-study
#2
Arie J Verschoor, Judith V M G Bovée, Monique J L Mastboom, P D Sander Dijkstra, Michiel A J Van De Sande, Hans Gelderblom
Background and purpose - Giant cell tumors of bone (GCT-B) are rare, locally aggressive tumors characterized by an abundance of giant cells. Incidence studies for GCT-B are rare. This is the first study using a fully automated 100% covering pathology database, the nationwide Dutch Pathology Registry (17 million inhabitants), PALGA, to calculate incidence rates for GCT-B. Patients and methods - From PALGA, all pathology excerpts were retrieved for patients diagnosed with GCT-B, giant cell tumors of tenosynovium, and giant cell tumors of soft tissue between January 1, 2009 and December 31, 2013...
July 10, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29987941/good-stability-of-a-cementless-anatomically-designed-femoral-stem-in-aging-women-a-9-year-rsa-study-of-32-patients
#3
Erik Aro, Jessica J Alm, Niko Moritz, Kimmo Mattila, Hannu T Aro
Background and purpose - We previously reported a transient, bone mineral density (BMD)-dependent early migration of anatomically designed hydroxyapatite-coated femoral stems with ceramic-ceramic bearing surfaces (ABG-II) in aging osteoarthritic women undergoing cementless total hip arthroplasty. To evaluate the clinical significance of the finding, we performed a follow-up study for repeated radiostereometric analysis (RSA) 9 years after surgery. Patients and methods - Of the 53 female patients examined at 2 years post-surgery in the original study, 32 were able to undergo repeated RSA of femoral stem migration at a median of 9 years (7...
July 10, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29985745/ten-cold-clubfeet
#4
Robert B Giesberts, Edsko E G Hekman, Gijsbertus J Verkerke, Patrick G M Maathuis
Background and purpose - Idiopathic clubfeet are commonly treated with serial manipulation and casting, known as the Ponseti method. The use of Plaster of Paris as casting material causes both exothermic and endothermic reactions. The resulting temperature changes can create discomfort for patients. Patients and methods - In 10 patients, we used a digital thermometer with a data logger to measure below-cast temperatures to create a thermal profile of the treatment process. Results - After the anticipated temperature peak, a surprisingly large dip was observed (Tmin = 26 °C) that lasted 12 hours...
July 9, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29985707/surgical-management-of-obturator-neuropathy-with-a-concomitant-acetabular-labral-tear-a-case-report
#5
Shiho Kanezaki, Akinori Sakai, Eiichiro Nakamura, Soshi Uchida
No abstract text is available yet for this article.
July 9, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29985681/no-increase-in-readmissions-or-adverse-events-after-implementation-of-fast-track-program-in-total-hip-and-knee-replacement-at-8-swedish-hospitals-an-observational-before-and-after-study-of-14-148-total-joint-replacements-2011-2015
#6
Urban Berg, Erik BüLow, Martin Sundberg, Ola Rolfson
Background and purpose - Fast-track care programs in elective total hip and knee replacement (THR/TKR) have been introduced in several countries during the last decade resulting in a significant reduction of hospital stay without any rise in readmissions or early adverse events (AE). We evaluated the risk of readmissions and AE within 30 and 90 days after surgery when a fast-track program was introduced in routine care of joint replacement at 8 Swedish hospitals. Patients and methods - Fast-track care programs were introduced at 8 public hospitals in Västra Götaland region from 2012 to 2014...
July 9, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29947288/growth-of-cutibacterium-acnes-is-common-on-osteosynthesis-material-of-the-shoulder-in-patients-without-signs-of-infection
#7
Anna Both, Till O Klatte, Andreas Lübke, Henning Büttner, Maximilian J Hartel, Lars G Grossterlinden, Holger Rohde
Background and purpose - Cutibacterium acnes, formerly known as Propionibacterium acnes, is often isolated from deep tissues of the shoulder. It is recognized as an important causative agent of foreign-material associated infections. However, the incidence and significance of its detection in tissues from patients without clinical evidence for infection is unclear. We assessed the incidence of C. acnes colonization of osteosynthesis material in asymptomatic patients, and evaluated the short-term outcome in relation to the microbiological findings...
June 27, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29947274/re-arthrodesis-after-primary-ankle-fusion-134-1-716-cases-from-the-swedish-ankle-registry
#8
Anders Henricson, Lars Jehpsson, Åke Carlsson, Björn E Rosengren
Background and purpose - Arthrodesis is the most common treatment of severe ankle arthritis. Large studies on the occurrence of re-arthrodesis are few, especially with information in terms of risk. We used the National Swedish Ankle Registry to assess incidence and risk factors for re-arthrodesis. Patients and methods - In the Registry, we examined the occurrence of re-arthrodesis in 1,716 patients with a primary ankle arthrodesis. We also analyzed associations between the re-arthrodesis risk and sex, diagnosis, and surgical method...
June 27, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29912603/midterm-risk-of-cancer-with-metal-on-metal-hip-replacements-not-increased-in-a-finnish-population
#9
Elina Ekman, Inari Laaksonen, Antti Eskelinen, Pekka Pulkkinen, Eero Pukkala, Keijo Mäkelä
Background and purpose - Metal-on-metal (MoM) total hip arthroplasty (THA) and hip resurfacing arthroplasty (HRA) have been widely used during the early 21st century. We assessed the midterm risk of cancer of patients treated with modern MoM hip implants compared with patients with non-MoM hip implants and the general Finnish population with special interest in soft tissue sarcomas and basalioma due to the findings of our previous report. Patients and methods - All large-diameter head MoM THAs and hip resurfacings performed in Finland between 2001 and 2010 were extracted from the Finnish Arthroplasty Register (10,728 patients)...
June 18, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29911919/innovative-treatment-for-pes-cavovarus-a-pilot-study-of-13-children
#10
Ignacio Sanpera, Guillem Frontera-Juan, Julia Sanpera-Iglesias, Laura Corominas-Frances
Background and purpose - Pes cavovarus (PCV) is a complex deformity, frequently related to neurological conditions and associated with foot pain, callosities, and walking instability. The deformity has the tendency to increase during growth. Orthotic treatment is ineffective and surgery may be troublesome. We present the preliminary results of a new mini-invasive surgical technique for correction of this foot deformity. Patients and methods - We operated on 13 children (24 feet), age 7-13 years. In 7 children the deformity was neurological in origin...
June 18, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29902104/anterior-distal-femoral-hemiepiphysiodesis-can-reduce-fixed-flexion-deformity-of-the-knee-a-retrospective-study-of-83-knees
#11
Norbert Stiel, Kornelia Babin, Eik Vettorazzi, Sandra Breyer, Nicola Ebert, Martin Rupprecht, Ralf Stuecker, Alexander S Spiro
Background and purpose - Fixed knee flexion deformity in children is a common problem in various diseases including myelomeningocele and cerebral palsy. Until now, only a few studies focusing on the surgical procedure of anterior distal femoral hemiepiphysiodesis have been published. We analyzed outcome and correction rate in the largest case series to date of patients treated by staples or 8-plates. Patients and methods - We reviewed the medical records of all patients with fixed knee flexion deformity who were treated with anterior distal femoral hemiepiphysiodesis using either staples or 8-plates between the years 2002 and 2017 (73 patients; 130 knees)...
June 14, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29883259/no-detrimental-effect-of-ligament-balancing-on-functional-outcome-after-total-knee-arthroplasty-a-prospective-cohort-study-on-129-mechanically-aligned-knees-with-3-years-follow-up
#12
Eirik Aunan, Stephan M Röhrl
Background and purpose - In the classical mechanical alignment technique, ligament balancing is considered a prerequisite for good function and endurance in total knee arthroplasty (TKA). However, it has been argued that ligament balancing may have a negative effect on knee function, and some authors advocate anatomic or kinematic alignment in order to reduce the extent of ligament releases. The effect of the trauma induced by ligament balancing on functional outcome is unknown; therefore, the aim of this study was to investigate this effect...
June 8, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29865924/poor-outcome-after-a-surgically-treated-chondral-injury-on-the-medial-femoral-condyle-early-evaluation-with-dgemric-and-17-year-radiographic-and-clinical-follow-up-in-16-knees
#13
Jon Tjörnstrand, Paul Neuman, Björn Lundin, Jonas Svensson, Leif E Dahlberg, Carl Johan Tiderius
Background and purpose - The optimal treatment for traumatic cartilage injuries remains unknown. Contrast-enhanced MRI of cartilage (dGEMRIC) evaluates cartilage quality and a low dGEMRIC index may predict radiographic osteoarthritis (OA). The purpose of this study was (a) to explore the results 17 years after surgical treatment of an isolated cartilage knee injury and (b) to evaluate the predictive value of dGEMRIC. Patients and methods - 16 knees with an isolated traumatic cartilage injury of the medial femoral condyle had cartilage repair surgery either by microfracture or autologous cartilage implantation...
June 5, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29865916/osteoblast-precursors-and-inflammatory-cells-arrive-simultaneously-to-sites-of-a-trabecular-bone-injury
#14
Magnus Bernhardsson, Per Aspenberg
Background and purpose - Fracture healing in the shaft is usually described as a sequence of events, starting with inflammation, which triggers mesenchymal tissue formation in successive steps. Most clinical fractures engage cancellous bone. We here describe fracture healing in cancellous bone, focusing on the timing of inflammatory and mesenchymal cell type appearance at the site of injury Material and methods - Rats received a proximal tibial drill hole. A subgroup received clodronate-containing liposomes before or after surgery...
June 5, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29860936/minimal-important-change-values-for-the-oxford-knee-score-and-the-forgotten-joint-score-at-1-year-after-total-knee-replacement
#15
Lina H Ingelsrud, Ewa M Roos, Berend Terluin, Kirill Gromov, Henrik Husted, Anders Troelsen
Background and purpose - Interpreting changes in Oxford Knee Score (OKS) and Forgotten Joint Score (FJS) following total knee replacement (TKR) is challenged by the lack of methodologically rigorous methods to estimate minimal important change (MIC) values. We determined MIC values by predictive modeling for the OKS and FJS in patients undergoing primary TKR. Patients and methods - We conducted a prospective cohort study in patients undergoing TKR between January 2015 and July 2016. OKS and FJS were completed preoperatively and at 1 year postoperatively, accompanied by a 7-point anchor question ranging from "better, an important improvement" to "worse, an important worsening...
June 4, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29860911/surgeon-s-experience-level-and-risk-of-reoperation-after-hip-fracture-surgery-an-observational-study-on-30-945-patients-in-the-norwegian-hip-fracture-register-2011-2015
#16
Ane L Authen, Eva Dybvik, Ove Furnes, Jan-Erik Gjertsen
No abstract text is available yet for this article.
June 4, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29843536/identification-and-treatment-of-residual-and-relapsed-idiopathic-clubfoot-in-88-children
#17
Jurre H Stouten, Arnold T Besselaar, M C Marieke Van Der Steen
Background and purpose - The Ponseti treatment is successful in idiopathic clubfoot. However, approximately 11-48% of all clubfeet maintain residual deformities or relapse. Early treatment, which possibly reduces the necessity for additional surgery, requires early identification of these problematic clubfeet. We identify deformities of residual/relapsed clubfeet and the treatments applied to tackle these deformities in a large tertiary clubfoot treatment center. Patients and methods - Retrospective chart review of patients who visited our clinic between 2012 and 2015 focused on demographics, deformities of the residual/relapsed clubfoot, and applied treatment...
May 30, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29808747/patient-claims-in-prosthetic-hip-infections-a-comparison-of-nationwide-incidence-in-sweden-and-patient-insurance-data
#18
Piotr Kasina, Anders Enocson, Viktor Lindgren, Lasse J Lapidus
Background and purpose - Patients in Sweden are insured against avoidable patient injuries. Prosthetic joint infections (PJIs) resulting from intraoperative contamination are regarded as compensable by the Swedish public insurance system. According to the Patient Injury Act, healthcare personnel must inform patients about any injury resulting from treatment and the possibility of filing a claim. To analyze any under-reporting of claims and their outcome, we investigated patients' claims of PJI in a nationwide setting Patients and methods - The national cohort of PJI after primary total hip replacement, initially operated between 2005 and 2008, was established through cross-matching of registers and review of individual medical records...
May 29, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29792086/risk-of-further-surgery-on-the-same-or-opposite-side-and-mortality-after-primary-total-hip-arthroplasty-a-multi-state-analysis-of-133-654-patients-from-the-swedish-hip-arthroplasty-register
#19
Peter H J Cnudde, Szilard Nemes, Erik Bülow, A John Timperley, Sarah L Whitehouse, Johan Kärrholm, Ola Rolfson
Background and purpose - The hip-related timeline of patients following a total hip arthroplasty (THA) can vary. Ideally patients will live their life without need for further surgery; however, some will undergo replacement on the contralateral hip and/or reoperations. We analyzed the probability of mortality and further hip-related surgery on the same or contralateral hip. Patients and methods - We performed a multi-state survival analysis on a prospectively followed cohort of 133,654 Swedish patients undergoing an elective THA between 1999 and 2012...
May 23, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29790397/higher-cartilage-wear-in-unipolar-than-bipolar-hemiarthroplasties-of-the-hip-at-2-years-a-randomized-controlled-radiostereometric-study-in-19-fit-elderly-patients-with-femoral-neck-fractures
#20
Wender Figved, Stian Svenøy, Stephan M Röhrl, Jon Dahl, Lars Nordsletten, Frede Frihagen
Background and purpose - The use of unipolar hemi-arthroplasties for femoral neck fractures is increasing in some countries due to reports of higher reoperation rates in bipolar prostheses. On the other hand, it has been proposed that bipolar hemiarthroplasties have clinical advantages and less cartilage wear than unipolar hemiarthroplasties. We compared cartilage wear between bipolar and unipolar hemiarthroplasties using radiostereometric analyses (RSA), in patients aged 70 years or older. Patients and methods - 28 ambulatory, lucid patients were randomized to treatment with a unipolar or a bipolar hemiarthroplasty for an acute femoral neck fracture...
May 23, 2018: Acta Orthopaedica
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