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Bone & Joint Research

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https://read.qxmd.com/read/30662711/the-effect-of-plate-design-bridging-span-and-fracture-healing-on-the-performance-of-high-tibial-osteotomy-plates-an-experimental-and-finite-element-study
#1
A R MacLeod, G Serrancoli, B J Fregly, A D Toms, H S Gill
Objectives: Opening wedge high tibial osteotomy (HTO) is an established surgical procedure for the treatment of early-stage knee arthritis. Other than infection, the majority of complications are related to mechanical factors - in particular, stimulation of healing at the osteotomy site. This study used finite element (FE) analysis to investigate the effect of plate design and bridging span on interfragmentary movement (IFM) and the influence of fracture healing on plate stress and potential failure...
December 2018: Bone & Joint Research
https://read.qxmd.com/read/30662710/the-evolution-and-role-of-patellofemoral-joint-arthroplasty-the-road-less-travelled-but-not-forgotten
#2
M A Roussot, F S Haddad
No abstract text is available yet for this article.
December 2018: Bone & Joint Research
https://read.qxmd.com/read/30662709/screw-head-plugs-increase-the-fatigue-strength-of-stainless-steel-but-not-of-titanium-locking-plates
#3
L-W Hung, C-K Chao, J-R Huang, J Lin
Objectives: Screw plugs have been reported to increase the fatigue strength of stainless steel locking plates. The objective of this study was to examine and compare this effect between stainless steel and titanium locking plates. Methods: Custom-designed locking plates with identical structures were fabricated from stainless steel and a titanium alloy. Three types of plates were compared: type I unplugged plates; type II plugged plates with a 4 Nm torque; and type III plugged plates with a 12 Nm torque...
December 2018: Bone & Joint Research
https://read.qxmd.com/read/30662708/different-composition-of-leucocytes-in-cortical-and-cancellous-bone-healing-in-a-mouse-model
#4
L Tätting, O Sandberg, M Bernhardsson, J Ernerudh, P Aspenberg
Objectives: Cortical and cancellous bone healing processes appear to be histologically different. They also respond differently to anti-inflammatory agents. We investigated whether the leucocyte composition on days 3 and 5 after cortical and cancellous injuries to bone was different, and compared changes over time using day 3 as the baseline. Methods: Ten-week-old male C56/Bl6J mice were randomized to either cancellous injury in the proximal tibia or cortical injury in the femoral diaphysis...
December 2018: Bone & Joint Research
https://read.qxmd.com/read/30581559/segmental-induction-heating-of-orthopaedic-metal-implants
#5
B G Pijls, I M J G Sanders, E J Kuijper, R G H H Nelissen
Objectives: Prosthetic joint infection (PJI) is a devastating complication following total joint arthroplasty. Non-contact induction heating of metal implants is a new and emerging treatment for PJI. However, there may be concerns for potential tissue necrosis. It is thought that segmental induction heating can be used to control the thermal dose and to limit collateral thermal injury to the bone and surrounding tissues. The purpose of this study was to determine the thermal dose, for commonly used metal implants in orthopaedic surgery, at various distances from the heating centre (HC)...
November 2018: Bone & Joint Research
https://read.qxmd.com/read/30581558/transcriptome-analysis-of-osteoblasts-in-an-ovariectomized-mouse-model-in-response-to-physical-exercise
#6
W-B Hsu, W-H Hsu, J-S Hung, W-J Shen, R W-W Hsu
Objectives: Osteoporosis is a metabolic disease resulting in progressive loss of bone mass as measured by bone mineral density (BMD). Physical exercise has a positive effect on increasing or maintaining BMD in postmenopausal women. The contribution of exercise to the regulation of osteogenesis in osteoblasts remains unclear. We therefore investigated the effect of exercise on osteoblasts in ovariectomized mice. Methods: We compared the activity of differentially expressed genes of osteoblasts in ovariectomized mice that undertook exercise (OVX+T) with those that did not (OVX), using microarray and bioinformatics...
November 2018: Bone & Joint Research
https://read.qxmd.com/read/30581557/wear-performance-of-retrieved-metal-on-metal-pinnacle-hip-arthroplasties-implanted-before-and-after-2007
#7
S Bergiers, H S Hothi, J Henckel, A Eskelinen, J Skinner, A Hart
Objectives: Previous studies have suggested that metal-on-metal (MoM) Pinnacle (DePuy Synthes, Warsaw, Indiana) hip arthroplasties implanted after 2006 exhibit higher failure rates. This was attributed to the production of implants with reduced diametrical clearances between their bearing surfaces, which, it was speculated, were outside manufacturing tolerances. This study aimed to better understand the performance of Pinnacle Systems manufactured before and after this event. Methods: A total of 92 retrieved MoM Pinnacle hips were analyzed, of which 45 were implanted before 2007, and 47 from 2007 onwards...
November 2018: Bone & Joint Research
https://read.qxmd.com/read/30581556/mechanical-stress-contributes-to-osteoarthritis-development-through-the-activation-of-transforming-growth-factor-beta-1-tgf-%C3%AE-1
#8
R-K Zhang, G-W Li, C Zeng, C-X Lin, L-S Huang, G-X Huang, C Zhao, S-Y Feng, H Fang
Objectives: The role of mechanical stress and transforming growth factor beta 1 (TGF-β1) is important in the initiation and progression of osteoarthritis (OA). However, the underlying molecular mechanisms are not clearly known. Methods: In this study, TGF-β1 from osteoclasts and knee joints were analyzed using a co-cultured cell model and an OA rat model, respectively. Five patients with a femoral neck fracture (four female and one male, mean 73.4 years (68 to 79)) were recruited between January 2015 and December 2015...
November 2018: Bone & Joint Research
https://read.qxmd.com/read/30464838/time-dependent-behaviour-of-bone-accentuates-loosening-in-the-fixation-of-fractures-using-bone-screw-systems
#9
S Xie, K Manda, P Pankaj
Aims: Loosening is a well-known complication in the fixation of fractures using devices such as locking plates or unilateral fixators. It is believed that high strains in the bone at the bone-screw interface can initiate loosening, which can result in infection, and further loosening. Here, we present a new theory of loosening of implants. The time-dependent response of bone subjected to loads results in interfacial deformations in the bone which accumulate with cyclical loading and thus accentuates loosening...
October 2018: Bone & Joint Research
https://read.qxmd.com/read/30464837/use-of-stimulan-absorbable-calcium-sulphate-beads-in-revision-lower-limb-arthroplasty-safety-profile-and-complication-rates
#10
R Kallala, W Edwin Harris, M Ibrahim, M Dipane, E McPherson
Aims: Calcium sulphate has traditionally been used as a filler of dead space arising during surgery. Various complications have been described following the use of Stimulan bio-absorbable calcium sulphate beads. This study is a prospective observational study to assess the safety profile of these beads when used in revision arthroplasty, comparing the complication rates with those reported in the literature. Methods: A total of 755 patients who underwent 456 revision total knee arthroplasties (TKA) and 299 revision total hip arthroplasties (THA), with a mean follow-up of 35 months (0 to 78) were included in the study...
October 2018: Bone & Joint Research
https://read.qxmd.com/read/30464836/management-of-acute-achilles-tendon-ruptures-a-review
#11
X Yang, H Meng, Q Quan, J Peng, S Lu, A Wang
Objectives: The incidence of acute Achilles tendon rupture appears to be increasing. The aim of this study was to summarize various therapies for acute Achilles tendon rupture and discuss their relative merits. Methods: A PubMed search about the management of acute Achilles tendon rupture was performed. The search was open for original manuscripts and review papers limited to publication from January 2006 to July 2017. A total of 489 papers were identified initially and finally 323 articles were suitable for this review...
October 2018: Bone & Joint Research
https://read.qxmd.com/read/30464835/anabolic-and-antiresorptive-actions-of-locally-delivered-bisphosphonates-for-bone-repair-a-review
#12
I Qayoom, D B Raina, A Širka, Š Tarasevičius, M Tägil, A Kumar, L Lidgren
During the last decades, several research groups have used bisphosphonates for local application to counteract secondary bone resorption after bone grafting, to improve implant fixation or to control bone resorption caused by bone morphogenetic proteins (BMPs). We focused on zoledronate (a bisphosphonate) due to its greater antiresorptive potential over other bisphosphonates. Recently, it has become obvious that the carrier is of importance to modulate the concentration and elution profile of the zoledronic acid locally...
October 2018: Bone & Joint Research
https://read.qxmd.com/read/30294426/is-patellofemoral-pain-a-precursor-to-osteoarthritis-patellofemoral-osteoarthritis-and-patellofemoral-pain-patients-share-aberrant-patellar-shape-compared-with-healthy-controls
#13
J F A Eijkenboom, J H Waarsing, E H G Oei, S M A Bierma-Zeinstra, M van Middelkoop
Objectives: It has been hypothesized that patellofemoral pain, a common knee condition in adolescents and young adults, may be a precursor of degenerative joint changes and may ultimately lead to patellofemoral osteoarthritis. Since both conditions share several mechanical disease characteristics, such as altered contact area between the femur and patella and increased joint stress, we investigated whether these conditions share similar and different shape characteristics of the patella compared with normal controls...
September 2018: Bone & Joint Research
https://read.qxmd.com/read/30294425/infographic-reporting-the-right-information-for-stem-cell-studies-is-important
#14
I R Murray, A G Geeslin, J Chahla, A D Murray, E B Goudie, F A Petrigliano, A H R W Simpson, R F LaPrade
No abstract text is available yet for this article.
September 2018: Bone & Joint Research
https://read.qxmd.com/read/30258572/standardizing-compression-testing-for-measuring-the-stiffness-of-human-bone
#15
S Zhao, M Arnold, S Ma, R L Abel, J P Cobb, U Hansen, O Boughton
Objectives: The ability to determine human bone stiffness is of clinical relevance in many fields, including bone quality assessment and orthopaedic prosthesis design. Stiffness can be measured using compression testing, an experimental technique commonly used to test bone specimens in vitro . This systematic review aims to determine how best to perform compression testing of human bone. Methods: A keyword search of all English language articles up until December 2017 of compression testing of bone was undertaken in Medline, Embase, PubMed, and Scopus databases...
August 2018: Bone & Joint Research
https://read.qxmd.com/read/30258571/the-biofilm-eradication-activity-of-acetic-acid-in-the-management-of-periprosthetic-joint-infection
#16
S T J Tsang, P J Gwynne, M P Gallagher, A H R W Simpson
Objectives: Periprosthetic joint infection following joint arthroplasty surgery is one of the most feared complications. The key to successful revision surgery for periprosthetic joint infections, regardless of treatment strategy, is a thorough deep debridement. In an attempt to limit antimicrobial and disinfectant use, there has been increasing interest in the use of acetic acid as an adjunct to debridement in the management of periprosthetic joint infections. However, its effectiveness in the eradication of established biofilms following clinically relevant treatment times has not been established...
August 2018: Bone & Joint Research
https://read.qxmd.com/read/30258570/intraosseous-pressure-during-loading-and-with-vascular-occlusion-in-an-animal-model
#17
M Beverly, S Mellon, J A Kennedy, D W Murray
Objectives: We studied subchondral intraosseous pressure (IOP) in an animal model during loading, and with vascular occlusion. We explored bone compartmentalization by saline injection. Materials and Methods: Needles were placed in the femoral condyle and proximal tibia of five anaesthetized rabbits and connected to pressure recorders. The limb was loaded with and without proximal vascular occlusion. An additional subject had simultaneous triple recordings at the femoral head, femoral condyle and proximal tibia...
August 2018: Bone & Joint Research
https://read.qxmd.com/read/30258569/dual-mobility-in-hip-arthroplasty-what-evidence-do-we-need
#18
S Horriat, F S Haddad
No abstract text is available yet for this article.
August 2018: Bone & Joint Research
https://read.qxmd.com/read/30258568/relative-movement-on-the-articular-surfaces-of-the-tibiotalar-and-subtalar-joints-during-walking
#19
C-B Phan, D-P Nguyen, K M Lee, S Koo
Objectives: The objective of this study was to quantify the relative movement between the articular surfaces in the tibiotalar and subtalar joints during normal walking in asymptomatic individuals. Methods: 3D movement data of the ankle joint complex were acquired from 18 subjects using a biplanar fluoroscopic system and 3D-to-2D registration of bone models obtained from CT images. Surface relative velocity vectors (SRVVs) of the articular surfaces of the tibiotalar and subtalar joints were calculated...
August 2018: Bone & Joint Research
https://read.qxmd.com/read/30123499/obesity-osteoarthritis-and-genetic-risk-the-rs182052-polymorphism-in-the-adipoq-gene-is-potentially-associated-with-risk-of-knee-osteoarthritis
#20
L Jiang, X Zhu, J Rong, B Xing, S Wang, A Liu, M Chu, G Huang
Objectives: Given the function of adiponectin (ADIPOQ) on the inflammatory condition of obesity and osteoarthritis (OA), we hypothesized that the ADIPOQ gene might be a candidate gene for a marker of susceptibility to OA. Methods: We systematically screened three tagging polymorphisms (rs182052, rs2082940 and rs6773957) in the ADIPOQ gene, and evaluated the association between the genetic variants and OA risk in a case-controlled study that included 196 OA patients and 442 controls in a northern Chinese population...
July 2018: Bone & Joint Research
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