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Acta Bio-medica: Atenei Parmensis

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https://www.readbyqxmd.com/read/28657575/perioperative-pain-management-in-fast-track-knee-arthroplasty
#1
Chiara Caparrini, Irene Miniati, Marco Ponti, Andrea Baldini
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June 7, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28657574/megaprosthesis-of-the-knee-in-tumor-and-revision-surgery
#2
E Pala, G Trovarelli, A Angelini, M Maraldi, A Berizzi, Pietro Ruggieri
The introduction of multidisciplinary approach with chemo and radiotherapy, the advances in surgical and the improvements of diagnostic techniques allowed limb salvage surgery in most cases of bone sarcomas instead of amputation. Modular megaprostheses are the most common method of reconstruction after segmental resection of the long bones in the extremities for their availability, immediate fixation, early weight bearing, good function. Despite the advances in materials and implant designs, these systems have an high incidence of complications...
June 7, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28657573/periprosthetic-knee-fractures-a-review-of-epidemiology-risk-factors-diagnosis-management-and-outcome
#3
Gianluca Canton, Chiara Ratti, Roberto Fattori, Bramin Hoxhaj, Luigi Murena
BACKGROUND AND AIM OF THE WORK: Periprosthetic knee fractures incidence is gradually raising due to aging of population and increasing of total knee arthroplasties. Management of this complication represents a challenge for the orthopaedic surgeon. Aim of the present study is to critically review the recent literature about epidemiology, risk factors, diagnosis, management and outcome of periprosthetic knee fractures. METHODS: A systematic search of Embase, Medline and Pubmed was performed by two reviewers who selected the eligible papers favoring studies published in the last ten years...
June 7, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28657572/varus-valgus-constrained-implants-in-total-knee-arthroplasty-indications-and-technique
#4
Paolo Adravanti, Sebastiano Vasta
Total knee arthroplasty is a successful operation that significantly improves patient's quality of life. However, studies demonstrated as only 82% to 89% of patients are satisfied with their surgery, being the other disappointed with regard to their expectations. Two to 5.7% of total knee arthroplasties (TKAs) require revision within 5 years. Both complex primary cases and revision TKA often necessitate for a higher degree of constrain than cruciate retaining or postero-stabilized implant design. In the 1970s varus-valgus constrained (VVC) or semi-constrained implants have been developed by Insall and associates from the PS design, which provide varus-valgus stability preserving a fair amount of host bone...
June 7, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28657571/management-of-metaphyseal-bone-loss-in-revision-knee-arthroplasty
#5
Francesco Mancuso, Arianna Beltrame, Elia Colombo, Enrick Miani, Fabrizio Bassini
BACKGROUND AND AIM OF THE WORK: Revision total knee arthroplasty (TKA) is usually made more complex by the presence of bone defects, which may be caused by periprosthethic infection, polyethylene wear, implant loosening or fractures. The main aim of the present work is to review the available literature to understand the current options to manage with the bone loss during knee revisions. METHODS: Available English literature for bone defects in revision TKAs has been evaluated looking at treatment options and their results in terms of clinical and radiological outcomes and failure rates...
June 7, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28657570/two-stage-revision-after-total-knee-arthroplasty
#6
Paolo Di Benedetto, Enrico Daniele Di Benedetto, Michele Mario Buttironi, D De Franceschi, Alessandro Beltrame, Renato Gissoni, Vanni Cainero, Araldo Causero
Periprosthetic knee infection is a complication associated with prosthetic failure; incidence change from 0,4-2% of primary total knee replacement and 5,6% in revisions; incidence is increasing over the years. Two-stage revision is the technique used in chronic infection. Aim of the work is to check success rate in our data. Methods. We analyzed retrospectively data of patients who undergone two stage revision surgery between 01/01/2010 to 31/12/2015. We made a clinical and radiological control after 1, 3, 6, 12, 24 months and we evaluate the outcome in December 2016...
June 7, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28657569/acute-periprosthetic-knee-infection-is-there-still-a-role-for-dair
#7
Paolo Di Benedetto, Enrico Daniele Di Benedetto, Daniele Salviato, Alessandro Beltrame, Renato Gissoni, Vanni Cainero, Araldo Causero
BACKGROUND AND AIM OF THE WORK: Periprosthetic knee infection is a rare complication associated with prosthetic failure; incidence change from 0,4-2% of primary total knee replacement and 5.6% in revisions. Indications for debridment, antibiotics and implant retention (DAIR) are early acute infections or acute delayed infection. Aim of the work is to check if this technique is still a successful in early infections. METHODS: We have analyzed recent literature data on DAIR and all DAIR procedures in our clinic in the last 10 years, the mean time between onset of symptoms and surgery, the mean antibiotic therapy duration and results we have obtained...
June 7, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28657568/metal-hypersensitivity-after-knee-arthroplasty-fact-or-fiction
#8
Massimo Innocenti, Berti Vieri, Tommaso Melani, Tommaso Paoli, Christian Carulli
BACKGROUND AND AIM OF THE WORK: Hypersensitivity to metals in the general population has an incidence of about 15%, and in rising also for the higher number of joint replacements in the last decades. Total Knee Arthroplasty (TKA) represents the most performed orthopaedic procedure during last years, and it seems to be particularly associated with sensitization after surgery. On the other hand, there is a rising amount of patients with painful but well implanted and functioning TKAs: in certain cases, after the exclusion of the most frequent causes of failure, a condition of hypersensitivity may be found, and a revision with anallergic implants is mandatory...
June 7, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28657567/bone-scan-in-painful-knee-arthroplasty-obsolete-or-actual-examination
#9
Giuseppe Niccoli, Domenico Mercurio, Fabrizio Cortese
ptic loosening, instability and infection are the major causes of TKA failure. For many years, nuclear medicine (NM) imaging was helpful to frame a painful total joint arthroplasty. The differentiation of septic from aseptic prosthetic loosening is critical. The latest AAOS guidelines to detect periprosthetic joint infection (PJI) restrict the role of NM scintigraphy. On the other hand, several studies suggest that NM imaging plays an important role in the evaluation of patients with painful prosthesis, but its specificity in differentiating aseptic loosening from infection is low...
June 7, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28657566/the-painful-knee-after-total-knee-arthroplasty-evaluation-and-management
#10
Alberto Momoli, Stefano Giarretta, Martino Modena, Gian Mario Micheloni
Total knee arthroplasty (TKA) is the treatment of choice for end-stage osteoarthritis of the knee. The aging of population and the need to maintain high quality of life have increased the demand for TKA. Although considered a successful procedure, 15-30% of patients presenting persistent pain. The management of these patients requires a clinical, laboratory and radiological assessment in order to address the underlying aetiology. There are several causes of pain, divided in joint and non-joint related, which should be diagnosed and treated promptly...
June 7, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28657565/robotic-arm-assisted-partial-knee-arthroplasty-a-single-centre-experience
#11
Andrea Marcovigi, Francesco Zambianchi, Dario Sandoni, Elisa Rivi, Fabio Catani
BACKGROUND AND AIM OF THE WORK: UKA has proven to be an effective surgical procedure, but its survivorship is still negatively affected by inaccuracy in component component positioning, implant and limb alignment. Robotic surgery has been introduced in order to minimize such technical errors. The aim of the present paper was to evaluate clinical and surgical outcomes after a 3 years' experience of robotic assisted UKA with the Mako Robotic Arm. METHODS: Seventy-three patients undergoing  UKA with robotic instrumentation (65 medial UKAs, 8 lateral UKAs) and with a clinical follow-up of 3 -37 months were included in the present study...
June 7, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28657564/computer-assisted-total-knee-arthroplasty-a-real-navigation-to-better-results
#12
Paolo Di Benedetto, Enrico Daniele Di Benedetto, Michele Mario Buttironi, Alessandro Beltrame, Renato Gissoni, Vanni Cainero, Araldo Causero
BACKGROUND AND AIM OF THE WORK: Computer assisted surgery in knee replacement is still in discussion, but majority of papers affirm an increase of the accuracy in alignment. Aim of our study is to evaluate the accuracy of mechanical axis, the posterior tibial slope and the femoral component rotation with navigation, x-ray and CT data. METHODS: We have analysed 145 patients who underwent total knee arthroplasty between January 2012 and December 2014. We have checked each patient at 6, 12 and 24 months of follow-up...
June 7, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28657563/medial-vs-lateral-unicompartmental-knee-arthrroplasty-clinical-results
#13
Andrea Fiocchi, Vincenzo Condello, Vincenzo Madonna, M Bonomo, Claudio Zorzi
Unicompartmental Knee Arthroplasty (UKA) is a common procedure for the management of isolated osteoarthritis. UKA is considered less invasive compared to total knee arthroplasty, associated with less operative time, blood loss and faster recovery. Isolated lateral osteoarthritis is a relatively uncommon clinical problem, with an incidence about ten times lower than the medial compartment. In fact, lateral UKA are about 5-10% of the total amount of the UKAs. In addition, it's historically considered more challenging and with poorer results...
June 7, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28657562/patient-specific-instrumentation-in-total-knee-arthroplasty
#14
Andrea Colombelli, Alberto Belluati, Yousef Rizqallah, Giovanni Guerra, Carlo Busatto
BACKGROUND AND AIM OF THE WORK: The international literature and analysis of the prosthetic registers highlight a significant relationship between the alignment of the components and the survival of prosthetic implants of the knee. The patient specific instrumentation (PSI) technology exploits the data obtained with the MRN for the production of cutting blocks (CB) useful to a TKA. Revisiting the recent international literature, comparing the results of the conventional method and PSI, numerous studies confirm a statistically significant difference of inliers (± 3 degrees) for HKA...
June 7, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28657561/total-knee-replacement-intraoperative-and-postoperative-kinematic-assessment
#15
M Bontempi, U Cardinale, L Bragonzoni, L Macchiarola, A Grassi, C Signorelli, G M Marcheggiani Muccioli, Stefano Zaffagnini
BACKGROUND AND AIM: The main goals of the total knee arthroplasty (TKA) is to reduce the perceived pain and  restore knee mobility and function in case of osteoarthritic knees joints. Literature shows how the three major causes of TKA failures are related to wear, loosening and instability and this is due to a problem of imbalance and malalignment. Intraoperative and postoperative kinematics analysis could be of benefit for improving surgery outcome. The aim of the present paper is to give an overview of the two set-up with the highest accuracy for intraoperative and postoperative TKA kinematics evaluation, currently in use at Istituto Ortopedico Rizzoli...
June 7, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28657560/understanding-the-human-knee-and-its-relationship-to-total-knee-replacement
#16
Enrico Vaienti, Giacomo Scita, Francesco Ceccarelli, Francesco Pogliacomi
The knee is the intermediate joint of the lower limb and it allows the movement between the femur, tibia and patella. Under normal conditions there is a normal distribution of the load forces on these three articular components in both the static load and during ambulation. The understanding of anatomy and knee biomechanics is important for the gait analysis, the diagnosis of joint diseases and the design and development of prosthetic implants. In the last decades comprehension of knee physiology and kinematics has led to the introduction of a wide range of enhanced prosthetic implant designs for a variety of indications...
June 7, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28657559/evolution-of-tka-design
#17
Carlo Dall'Oca, M Ricci, E Vecchini, N Giannini, D Lamberti, C Tromponi, B Magnan
The use of Total Knee Arthroplasty (TKA) in treatment of chronic degenerative pathologies of the knee boasts of an experience of 50 years. During this period the collaboration between surgeons and engineers produced many developments in the design of the prosthesis. Today this procedure is safe and established even if in continuous development. The progress in technologies and the use of new materials let researches try again old-fashioned techniques from the past in order to be improved. This enthusiasm for those discovers is not always going hand to hand with scientific validation: many open questions remains Every different concept of the design tries to answer to special needs as the reach of the highest ROM, the reduction of pain and debris, articular geometry, the type of fixation, the modularity of augments and stems, the types of constraints,  knee kinematic and of course costs...
June 7, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28657558/knee-arthroplasty
#18
Araldo Causero
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June 7, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28467346/chronic-anemia-and-thyroid-function
#19
Ashraf T Soliman, Vincenzo De Sanctis, Mohamed Yassin, Magda Wagdy, Nada Soliman
Anaemia is a global public health problem affecting both developing and developed countries with major consequences for human health as well as social and economic development. It occurs at all stages of the life cycle, but is more prevalent in pregnant women and young children. Iron deficiency anaemia (IDA) impairs thyroid metabolism in animals and human and may negatively affect growth and develpment of children. On the other hand both overt and subclinical hypothyroidism are associated with anemia and adding iron to thyroxine therapy improves both conditions compared to thyroxine therapy alone...
April 28, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28467345/iron-deficiency-anemia-and-glucose-metabolism
#20
Ashraf T Soliman, Vincenzo De Sanctis, Mohamed Yassin, Nada Soliman
Iron deficiency anemia (IDA) is a global public health problem affecting both developing and developed countries with major consequences for human health as well as social and economic development. It occurs at all stages of the life cycle, but is more prevalent in pregnant women and young children. IDA appears to be more common in diabetic patients compared to non-diabetic population. Iron deficiency (ID) and IDA can impair glucose homeostasis in animals and human and may negatively affect glycemic control and predispose to more complications in diabetic patients...
April 28, 2017: Acta Bio-medica: Atenei Parmensis
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