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Hip prosthesis replacement

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https://www.readbyqxmd.com/read/29338761/is-total-femoral-replacement-for-non-oncologic-and-oncologic-indications-a-safe-procedure-in-limb-preservation-surgery-a-single-center-experience-of-22-cases
#1
Andreas Toepfer, Norbert Harrasser, Isabel Petzschner, Florian Pohlig, Ulrich Lenze, Ludger Gerdesmeyer, Ruediger von Eisenhart-Rothe, Heinrich Mühlhofer, Christian Suren
BACKGROUND: Several surgical options for the reconstruction of massive bone defects have been described and include biologic methods with autografts and allografts, and the use of tumor endoprostheses (total femoral replacement, TFR). Several types of modular TFR are available, but nevertheless unpredictable outcomes and high complication rates have been described from most authors. The present study aims to compare results after TFR performed with modular total femur prosthesis MML (Fa...
January 16, 2018: European Journal of Medical Research
https://www.readbyqxmd.com/read/29332662/a-survivorship-study-of-838-total-elbow-replacements-a-report-from-the-norwegian-arthroplasty-register-1994-2016
#2
Yngvar Krukhaug, Geir Hallan, Eva Dybvik, Stein A Lie, Ove N Furnes
BACKGROUND: The aim of this study was to present the long-term survivorship (20 years) of total elbow arthroplasty (TEA) for a relatively large population and to compare different prosthesis brands and patient subgroups. METHODS: Between 1994 and 2017, a total of 838 primary TEAs were reported to the Norwegian Arthroplasty Register. Implant survival was calculated using the Kaplan-Meier method. Risk differences were examined using Cox regression analyses and exact Cox regression for rare events...
February 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29324457/successful-first-gait-of-a-child-with-hip-disarticulation-prosthesis-a-case-report
#3
Hitomi Hara, Teruya Kawamoto, Naomasa Fukase, Etsuko Katayama, Toshiyuki Takemori, Shuichi Fujiwara, Yoshitada Sakai, Kotaro Nishida, Ryosuke Kuroda, Toshihiro Akisue
An infant boy underwent hip disarticulation for infantile fibrosarcoma immediately after birth. His rehabilitation began when he was 4 months old and involved training with his left (residual) leg. He could stand with support at 12 months. His initial prosthesis fitting was performed at the age of 13 months. He could stand and walk with support at 15 months of age and could walk with no additional support and go up and down stairs at 2 years. A single-axis prosthetic knee joint was introduced at the age of 2 years 3 months...
January 11, 2018: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/29310917/mid-term-results-of-graft-augmentation-prosthesis-ii-cage-and-impacted-allograft-bone-in-revision-hip-arthroplasty
#4
Hazem A H Hosny, Ahmed El-Bakoury, Helmy Fekry, Jonathan Keenan
BACKGROUND: Several techniques have been described for management of severe acetabular bone defects during revision hip surgery including reconstructive cages. The purpose of this study is to analyze the survival and the mid-term clinical and radiological outcome using the Graft Augmentation Prosthesis (GAP II cage) (Stryker Orthopaedics, Mahwah, NJ) in addition to impaction grafting for acetabular defects in revision hip surgery. METHODS: This is a retrospective review of all patients who underwent acetabular revision hip replacement using GAP II cage and impaction bone grafting between 2009 and 2013 at our institution...
December 8, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29276120/damage-assessment-of-retrieved-birmingham-monoblock-cups-is-conversion-to-dual-mobility-head-a-viable-revision-option
#5
Trevor C Gascoyne, Brent A Lanting, Kieran J Derksen, Matthew G Teeter, Thomas R Turgeon
BACKGROUND: A novel revision technique for failed hip resurfacings involves retention of the acetabular cup, if well-fixed, which is mated to dual-mobility (DM) prosthesis in a traditional hip replacement configuration. It is unknown whether existing damage on the retained cup will result in unacceptable wear of the DM prosthesis. METHODS: Thirty retrieved Birmingham (Smith & Nephew) monoblock cups were visually scored for damage features and area of coverage. Surface roughness measurements were obtained within each damage feature as well as reference points on each cup...
October 26, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29259062/handling-the-procurement-of-prostheses-for-total-hip-replacement-description-of-an-original-value-based-approach-and-application-to-a-real-life-dataset-reported-in-the-uk
#6
Andrea Messori, Sabrina Trippoli, Claudio Marinai
OBJECTIVES: In most European countries, innovative medical devices are not managed according to cost-utility methods, the reason being that national agencies do not generally evaluate these products. The objective of our study was to investigate the cost-utility profile of prostheses for hip replacement and to calculate a value-based score to be used in the process of procurement and tendering for these devices. METHODS: The first phase of our study was aimed at retrieving the studies reporting the values of QALYs, direct cost, and net monetary benefit (NMB) from patients undergoing total hip arthroplasty (THA) with different brands of hip prosthesis...
December 19, 2017: BMJ Open
https://www.readbyqxmd.com/read/29258584/lymphocyte-opioid-receptors-as-innovative-biomarkers-of-osteoarthritic-pain-for-the-assessment-and-risk-management-of-opioid-tailored-therapy-before-hip-surgery-to-prevent-chronic-pain-and-opioid-tolerance-addiction-development-opmarkart-opioids-markers-arthroprosthesis
#7
Valentina Malafoglia, Monica Celi, Carolina Muscoli, Sara Ilari, Filomena Lauro, Luigino Antonio Giancotti, Chiara Morabito, Maurizio Feola, Umberto Tarantino, William Raffaeli
BACKGROUND: The incidence of post-surgical chronic pain ranges between 20% and 40% in Europe. Osteoarthritis pain after prosthesis implantation is one of the most severe secondary syndromes, depending not only on surgery but also on organic changes before and after joints replacement. No data are available about risk factors. An excessive inflammatory response plays a central role but a best therapy is not defined yet. It is not clear whether opioid administration could influence post-surgical pain and lead to tolerance or addiction...
December 19, 2017: Trials
https://www.readbyqxmd.com/read/29244672/a-short-femoral-stem-in-revision-total-hip-replacement-an-alternative-solution-for-prosthetic-fracture-a-case-report
#8
Paul Y F Lee, David J Woodnutt, David M Golding
CASE: A 65-year-old farmer re-presented 5 years after sustaining a midshaft prosthetic fracture of a previous long-stem revision hip replacement. He was treated with a proximal-loading short femoral stem, and did not require an extended trochanteric osteotomy for removal of the well-fixed distal implant. He was able to fully bear weight immediately postoperatively, and he remained pain-free without functional loss at the 42-month follow-up. CONCLUSION: This use of a modern short-stem prosthesis is a treatment option for a potentially complex prosthetic fracture in highly active patients, and it reduces intraoperative complexity...
April 2017: JBJS Case Connector
https://www.readbyqxmd.com/read/29209491/a-3d-printed-sensor-for-monitoring-biosignals-in-small-animals
#9
Sung-Joon Cho, Donghak Byun, Tai-Seung Nam, Seok-Yong Choi, Byung-Geun Lee, Myeong-Kyu Kim, Sohee Kim
Although additive manufacturing technologies, also known as 3D printing, were first introduced in the 1980s, they have recently gained remarkable popularity owing to decreased costs. 3D printing has already emerged as a viable technology in many industries; in particular, it is a good replacement for microfabrication technology. Microfabrication technology usually requires expensive clean room equipment and skilled engineers; however, 3D printing can reduce both cost and time dramatically. Although 3D printing technology has started to emerge into microfabrication manufacturing and medical applications, it is typically limited to creating mechanical structures such as hip prosthesis or dental implants...
2017: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29203035/-perspective-of-the-transition-from-reusable-instruments-to-single-use-ancillary-in-orthopedic-surgery
#10
J Steelandt, T Vaillant, C Duhamel, S Haghighat, J-M Féron, P Paubel, A-L Cordonnier
OBJECTIVES: Since 2009, single-use (SU) ancillaries for total knee arthroplasty (TKA) and total hip arthroplasty (THA) have been marketed to replace reusable ancillaries. The concept is not innovative but their use in orthopedics is still uncommon. An assessment has been done for the use of SU ancillary in Assistance publique-hôpitaux de Paris with the consequences for the patient, the surgeon and the hospital. METHODS: A technical and a clinical review has been done with those devices in 2015...
December 1, 2017: Annales Pharmaceutiques Françaises
https://www.readbyqxmd.com/read/29188174/diagnosis-of-persistent-infection-in-prosthetic-two-stage-exchange-pcr-analysis-of-sonication-fluid-from-bone-cement-spacers
#11
Sandrine Mariaux, Ulrika Furustrand Tafin, Olivier Borens
Introduction: When treating periprosthetic joint infections with a two-stage procedure, antibiotic-impregnated spacers are used in the interval between removal of prosthesis and reimplantation. According to our experience, cultures of sonicated spacers are most often negative. The objective of our study was to investigate whether PCR analysis would improve the detection of bacteria in the spacer sonication fluid. Methods: A prospective monocentric study was performed from September 2014 to January 2016. Inclusion criteria were two-stage procedure for prosthetic infection and agreement of the patient to participate in the study...
2017: Journal of Bone and Joint Infection
https://www.readbyqxmd.com/read/29145281/cup-revision-involving-retention-of-a-fixed-but-malpositioned-acetabular-component-in-patients-with-poor-general-conditions
#12
Weiping Su, Min Zeng, Yihe Hu, Jianxi Zhu, Long Wang, Jie Xie
This study evaluated the surgical technique and outcomes of cup revision involving retention of a fixed but malpositioned acetabular component in patients with poor general conditions.Between 2007 and 2013, we performed cup revision on 12 hips while retaining a fixed (either cemented or uncemented) but malpositioned acetabular component. Indications for this technique were: malpositioned but fixed acetabular shell; sufficient space for the insertion of the prosthesis; and patients with poor general conditions...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29105561/failure-of-an-accis-metal-on-metal-hip-resurfacing-prosthesis-a-case-report
#13
Martin C Bone, Andrew Naylor
The introduction of coatings on joint replacements was intended to reduce wear volumes, prevent corrosion and reduce metal ion release. However, retrieval analysis to confirm their in vivo performance has been limited. The aim of study was to examine the coating on a retrieved hip prosthesis to determine whether substantial damage or wear had occurred. A single advanced ceramic-coated implant systems titanium niobium nitride-coated hip resurfacing prosthesis was retrieved for examination. Wear volumes and surface roughness were measured to quantify the damage to the articulating surfaces...
November 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/29100185/numerical-evaluation-of-bone-remodelling-and-adaptation-considering-different-hip-prosthesis-designs
#14
Ievgen Levadnyi, Jan Awrejcewicz, José Eduardo Gubaua, Jucélio Tomás Pereira
BACKGROUND: The change in mechanical properties of femoral cortical bone tissue surrounding the stem of the hip endoprosthesis is one of the causes of implant instability. We present an analysis used to determine the best conditions for long-term functioning of the bone-implant system, which will lead to improvement of treatment results. METHODS: In the present paper, a finite element method coupled with a bone remodelling model is used to evaluate how different three-dimensional prosthesis models influence distribution of the density of bone tissue...
October 18, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29083348/cementless-knee-arthroplasty
#15
Lorenzo Ponziani, Francesco Di Caprio, Renato Meringolo
Total knee replacement is a common treatment for advanced knee osteoarthritis. The most common and widespread method is cemented arthroplasty. As in the prosthetic hip a gradual transition from cemented to uncemented fixation techniques occurred over time, increasing interest is growing also around cementless knee fixation, with the theoretical advantages of preserving the bone stock and obtaining a biological fixation avoiding cement fragmentation. On the basis of the actual knowledge, the uncemented knee prosthesis represents an interesting alternative especially for the patient under 65 years of age, with viable bone quality, in which a biological bone-prosthesis fixation is desirable, while avoiding the drawbacks of cement fragmentation and of the possible future revision of a cemented implant...
October 18, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29067042/a-clinical-study-on-arthroplasty-for-failed-internal-fixation-of-hip-fractures-and-review-of-literature
#16
Feng Mingli, Shen Huiliang, Cao Guanglei, Li Zheng, Lu Shibao, Liu Limin, An Shuai
BACKGROUND & OBJECTIVE: Hip fracture is common osteoporotic fracture associated sometimes with failed internal fixation. Joint replacement is commonly used to salvage failed internal fixation of hip fractures (FIFHF). Our objective was to present the outcome of Arthroplasty after FIFHF in our patients. METHODS: A prospective analysis was made on consecutive patients who underwent prosthetic replacements for FIFHF in Orthopaedics Department of Xuanwu Hospital between June 2012 and January 2015...
July 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/29060129/imu-based-real-time-pose-measurement-system-for-anterior-pelvic-plane-in-total-hip-replacement-surgeries
#17
Zhe Cao, Shaojie Su, Hao Tang, Yixin Zhou, Zhihua Wang, Hong Chen
With the aging of population, the number of Total Hip Replacement Surgeries (THR) increased year by year. In THR, inaccurate position of the implanted prosthesis may lead to the failure of the operation. In order to reduce the failure rate and acquire the real-time pose of Anterior Pelvic Plane (APP), we propose a measurement system in this paper. The measurement system includes two parts: Initial Pose Measurement Instrument (IPMI) and Real-time Pose Measurement Instrument (RPMI). IPMI is used to acquire the initial pose of the APP, and RPMI is used to estimate the real-time pose of the APP...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29049224/primary-stability-in-total-hip-replacement-a-biomechanical-investigation
#18
Paul Schmitz, Boyko Gueorguiev, Ivan Zderic, Christian Pfeifer, Michael Nerlich, Stephan Grechenig
BACKGROUND: In total hip replacement (THR), it is essential to achieve a primary stability to guarantee good long-term results. A novel locking screw hip (LSH)-stem, anchored to the medial cortex of the proximal femur by 5 monocortical locking screws, was developed to overcome the shortcomings of uncemented press-fit and cemented straight stems while simultaneously achieving primary stability. The aim of this study was to investigate the biomechanical competence of the LSH-stem in comparison to an uncemented press-fit stem...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29048688/is-endoprosthetic-replacement-of-the-proximal-femur-appropriate-in-the-comorbid-patient
#19
Arun Khajuria, Jonathon Ward, George Cooper, Jonathon Stevenson, Michael Parry, Lee Jeys
INTRODUCTION: Patients with failed hip arthroplasty requiring extensive femoral reconstruction often present with a multitude of comorbidities. Many treatment options limit initial mobilisation relying on bone graft incorporation. The use of endoprosthetic replacement (EPR), despite often being a "last resort", offers an expeditious solution with early mobilisation that is crucial in the comorbid individual. Many perceive that the surgical insult of EPR is associated with an increased mortality...
October 16, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29042371/better-early-functional-outcome-after-short-stem-total-hip-arthroplasty-a-prospective-blinded-randomised-controlled-multicentre-trial-comparing-the-collum-femoris-preserving-stem-with-a-zweymuller-straight-cementless-stem-total-hip-replacement-for-the-treatment
#20
Jakob van Oldenrijk, Vanessa A B Scholtes, Loes W A H van Beers, Carel H Geerdink, Bob B A M Niers, Wouter Runne, Mohit Bhandari, Rudolf W Poolman
OBJECTIVES: Primary aim was to compare the functional results at 3 months and 2 years between short and conventional cementless stem total hip arthroplasty (THA). Secondary aim was to determine the feasibility of a double-blind implant-related trial. DESIGN: A prospective blinded randomised controlled multicentre trial in patients with osteoarthritis of the hip. All patients, research assistants, clinical assessors, investigators and data analysts were blinded to the type of prosthesis...
October 16, 2017: BMJ Open
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