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Article: Challenges of Integrating New Technologies for Orthopedic Doctors to Face up to Difficulties during the Pandemic Era.

Niculescu, Marius / Honțaru, Octavia-Sorina / Popescu, George / Sterian, Alin Gabriel / Dobra, Mihai

2023 Volume 11, Issue 11

Abstract: In the field of orthopedics, competitive progress is growing faster because new technologies used to facilitate the work of physicians are continuously developing. Based on the issues generated in the pandemic era in this field, a research study was ... ...

Abstract	In the field of orthopedics, competitive progress is growing faster because new technologies used to facilitate the work of physicians are continuously developing. Based on the issues generated in the pandemic era in this field, a research study was developed to identify the intention of orthopedic doctors to integrate new medical technologies. The survey was based on a questionnaire that was used for data collection. The quantitative study registered a sample of 145 orthopedic doctors. The data analysis was performed based on the IBM SPSS program. A multiple linear regression model was applied, which analyzed how the independent variables can influence the dependent variables. After analyzing the data, it was observed that the intention of orthopedic doctors to use new medical technologies is influenced by the advantages and disadvantages perceived by them, the perceived risks, the quality of the medical technologies, the experience of physicians in their use, and their receptivity to other digital tools. The obtained results are highly important both for hospital managers and authorities, illustrating the main factors that influence doctors to use emergent technologies in their clinical work.
Language	English
Publishing date	2023-05-23
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2721009-1
ISSN	2227-9032
ISSN	2227-9032
DOI	10.3390/healthcare11111524
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Article ; Online: Reduction of spondylolisthesis and sagittal balance correction by anterior lumbar interbody fusion (ALIF).

Caprariu, Radu / Popa, Iulian / Oprea, Manuel / Niculescu, Marius / Poenaru, Dan / Birsasteanu, Florin

International orthopaedics

2021 Volume 45, Issue 4, Page(s) 997–1001

Abstract: Purpose: Long time recognized as a cause of lumbar stenosis, degenerative spondylolisthesis has an evolution in interrelation with sagittal balance. This study aimed to assess the role of ALIF in correcting the sagittal balance in patients with ... ...

Abstract	Purpose: Long time recognized as a cause of lumbar stenosis, degenerative spondylolisthesis has an evolution in interrelation with sagittal balance. This study aimed to assess the role of ALIF in correcting the sagittal balance in patients with degenerative spondylolisthesis. Material and methods: Twenty patients aged between 47 and 70 years were operated between July 2011 and September 2014 for degenerative spondylolisthesis by ALIF. The pre-operative and post-operative valid standing full spine radiographs were reviewed retrospectively. Clinical and radiological evaluations were conducted pre-operatively and postoperatively at one year and five years. Results: Lumbar lordosis (LL) was measured to 41.16 ± 14.25° pre-operatively and 47.27 ± 11.25° post-operatively (p > 0.05). At one year was 49.76 ± 13.31° and at five years 46.93 ± 9.26° (p > 0.05). Mean gain of lordosis after ALIF at index level was calculated to 8 ± 1.6° [4-12°]. Conclusions: ALIF offers a good reduction of the slipped vertebra providing good conditions for fusion and is an efficient surgical technique to recreate the sagittal spine balance.
MeSH term(s)	Aged ; Humans ; Lumbar Vertebrae/diagnostic imaging ; Lumbar Vertebrae/surgery ; Lumbosacral Region ; Middle Aged ; Retrospective Studies ; Spinal Fusion/adverse effects ; Spondylolisthesis/diagnostic imaging ; Spondylolisthesis/surgery
Language	English
Publishing date	2021-01-04
Publishing country	Germany
Document type	Journal Article
ZDB-ID	80384-4
ISSN	1432-5195 ; 0341-2695
ISSN (online)	1432-5195
ISSN	0341-2695
DOI	10.1007/s00264-020-04900-7
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Article ; Online: Effect of COVID-19 Pandemic on Orthopedic Surgery in Three Centers from Romania.

Vermeşan, Dinu / Todor, Adrian / Andrei, Diana / Niculescu, Marius / Tudorache, Emanuela / Haragus, Horia

International journal of environmental research and public health

2021 Volume 18, Issue 4

Abstract: The COVID-19 pandemic has put an enormous burden on healthcare systems. As a direct consequence, many elective procedures were cancelled and available resources were relocated to emergencies and COVID-19 patients. We aimed to analyze the impact on ... ...

Abstract	The COVID-19 pandemic has put an enormous burden on healthcare systems. As a direct consequence, many elective procedures were cancelled and available resources were relocated to emergencies and COVID-19 patients. We aimed to analyze the impact on orthopedic surgery in Romania. We performed a retrospective analysis of orthopedics and trauma cases admitted over the first six months of 2019 and 2020 in three representative clinics. In total, there were 1900 patients: 1241 from Timisoara, 216 from Cluj-Napoca, and 443 from Bucharest. In April, activity for all cases in the regional trauma center dropped to 23.8% and stopped in the other two. No arthroscopies or elective joint replacements were performed in April. By June, hospital admissions resumed for trauma cases while arthroscopies and joint replacements still lagged behind.
MeSH term(s)	COVID-19 ; Humans ; Orthopedic Procedures/statistics & numerical data ; Orthopedics ; Pandemics ; Retrospective Studies ; Romania/epidemiology
Language	English
Publishing date	2021-02-23
Publishing country	Switzerland
Document type	Journal Article
ISSN	1660-4601
ISSN (online)	1660-4601
DOI	10.3390/ijerph18042196
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Article: Treatment of Knee Osteochondral Fractures.

Cordunianu, Mihai Alexandru / Antoniac, Iulian / Niculescu, Marius / Paltanea, Gheorghe / Raiciu, Anca Daniela / Dura, Horatiu / Forna, Norin / Carstoc, Ioana Dana / Cristea, Mihai Bogdan

Healthcare (Basel, Switzerland)

2022 Volume 10, Issue 6

Abstract: Osteochondral lesions (OCLs) that are frequently encountered in skeletally immature and adult patients are more common than once thought, and their incidence rate is rising. These lesions can appear in many synovial joints of the body, such as the ... ...

Abstract	Osteochondral lesions (OCLs) that are frequently encountered in skeletally immature and adult patients are more common than once thought, and their incidence rate is rising. These lesions can appear in many synovial joints of the body, such as the shoulder, elbow, hip, and ankle, occurring most often in the knee. The term osteochondral lesion includes a vast spectrum of pathologies such as osteochondritis dissecans, osteochondral defects, osteochondral fractures, and osteonecrosis of the subchondral bone. When considering this, the term osteochondral fracture is preserved only for an osteochondral defect that combines disruption of the articular cartilage and subchondral bone. These fractures commonly occur after sports practice and are associated with acute lateral patellar dislocations. Many of these lesions are initially diagnosed by plain radiographs; however, a computed tomography (CT) scan or magnetic resonance imaging (MRI) can add significant value to the diagnosis and treatment. Treatment methods may vary depending on the location and size of the fracture, fragment instability, and skeletal maturity. The paper reports a 14-year-old boy case with an osteochondral fracture due to sports trauma. The medical approach involved an arthrotomy of the knee, drainage of the hematoma, two Kirschner wires (K-wires) for temporary fixation to restructure anatomic alignment, and a titanium Herbert screw fixing the fracture permanently. The patient had a favorable postoperative outcome with no residual pain, adequate knee stability, and a normal range of motion. The mobility of the knee was fully recovered.
Language	English
Publishing date	2022-06-08
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2721009-1
ISSN	2227-9032
ISSN	2227-9032
DOI	10.3390/healthcare10061061
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Article ; Online: Position of anterior cruciate ligament after single-bundle arthroscopic reconstruction.

Andrei, Bogdan Ioan / Niculescu, Marius / Popescu, Gheorghe

International orthopaedics

2016 Volume 40, Issue 2, Page(s) 393–397

Abstract: Purpose: The goal of this study was to assess the position of the reconstructed anterior cruciate ligament (ACL) in arthroscopic single-bundle ligamentoplasties through an anteromedial portal technique based on a clinical case series of 74 patients ... ...

Abstract	Purpose: The goal of this study was to assess the position of the reconstructed anterior cruciate ligament (ACL) in arthroscopic single-bundle ligamentoplasties through an anteromedial portal technique based on a clinical case series of 74 patients followed prospectively. Methods: This cohort study involved 100 patients who underwent arthroscopic ACL reconstruction between January 2012 and January 2014. Patients who underwent isolated ACL reconstruction were selected from 194 cases with associated lesions. Graft placement at the femoral side was within the femoral footprint of ACL. All patients received computed tomography scans and magnetic resonance imaging of both knees to compare ACL graft position to tht of the native ACL in the unaffected knee and to show whether drilling the femoral tunnel through the anteromedial portal closely approximates the native ACL alignment. Results: Seventy-four patients were available for follow-up. Mean value for the sagittal angle was 52.6° ± 2.9° for the graft-Blumensaat angle was 4.73° ± 0.75°., closely matching measurements in the contralateral normal knee. Conclusion: Using the anteromedial portal for single-bundle arthroscopic ACL reconstruction enables graft positioning within the normal footprint and as close as possible to anatomic ACL orientation.
MeSH term(s)	Anterior Cruciate Ligament/surgery ; Anterior Cruciate Ligament Reconstruction/methods ; Arthroscopy/methods ; Cohort Studies ; Female ; Femur/surgery ; Humans ; Knee Joint/surgery ; Magnetic Resonance Imaging/methods ; Male ; Prospective Studies ; Tomography, X-Ray Computed/methods
Language	English
Publishing date	2016-02
Publishing country	Germany
Document type	Journal Article
ZDB-ID	80384-4
ISSN	1432-5195 ; 0341-2695
ISSN (online)	1432-5195
ISSN	0341-2695
DOI	10.1007/s00264-015-2964-7
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Jg. 1995 - 2021: Lesesall (1.OG)
ab Jg. 2022: Lesesaal (EG)

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Article: The double-edged sword of backward compatibility

Hann, Il-Horn / Koh, Byungwan / Niculescu, Marius F

Information systems research : ISR ; an information systems journal of the Institute for Operations Research and the Management Sciences Vol. 27, No. 1 , p. 112-130

the adoption of multigenerational platforms in the presence of intergenerational services

2016 Volume 27, Issue 1, Page(s) 112–130

Author's details	Il-Horn Hann (Robert H. Smith School of Business, University of Maryland, College Park, Maryland), Byungwan Koh (Haskayne School of Business, University of Calgary, Calgary, Alberta, Canada), Marius F. Niculescu (Scheller College of Business, Georgia Institute of Technology, Atlanta, Georgia)
Keywords	platform economics ; multigeneration diffusion ; backward compatibility ; lease on life ; network economics ; mobile Internet
Language	English
Publisher	INFORMS$h1990-
Publishing place	Hanover, Md
Document type	Article
ZDB-ID	1081934-4 ; 2027203-0
ISSN	1526-5536 ; 1047-7047
ISSN (online)	1526-5536
ISSN	1047-7047
Database	ECONomics Information System

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Article: The influence of software process maturity and customere error reporting on software release and pricing

August, Terrence / Niculescu, Marius Florin

Management science : journal of the Institute for Operations Research and the Management Sciences Vol. 59, No. 12 , p. 2702-2726

2013 Volume 59, Issue 12, Page(s) 2702–2726

Author's details	Terrence August; Marius Florin Niculescu
Keywords	software quality ; software reliability ; software security ; software economics ; software process maturity ; network effects ; software error reporting ; diffusion of innovation
Language	English
Size	graph. Darst.
Publisher	INFORMS
Publishing place	Hanover, Md.
Document type	Article
ZDB-ID	206345-1 ; 2023019-9
ISSN	1526-5501 ; 0025-1909
ISSN (online)	1526-5501
ISSN	0025-1909
Database	ECONomics Information System

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Article: Failure Analysis of Ultra-High Molecular Weight Polyethylene Tibial Insert in Total Knee Arthroplasty.

Manescu Paltanea, Veronica / Antoniac, Iulian / Antoniac, Aurora / Paltanea, Gheorghe / Miculescu, Marian / Bita, Ana-Iulia / Laptoiu, Stefan / Niculescu, Marius / Stere, Alexandru / Paun, Costel / Cristea, Mihai Bogdan

Materials (Basel, Switzerland)

2022 Volume 15, Issue 20

Abstract: Knee osteoarthritis is treated based on total knee arthroplasty (TKA) interventions. The most frequent failure cause identified in surgical practice is due to wear and oxidation processes of the prothesis' tibial insert. This component is usually ... ...

Abstract	Knee osteoarthritis is treated based on total knee arthroplasty (TKA) interventions. The most frequent failure cause identified in surgical practice is due to wear and oxidation processes of the prothesis' tibial insert. This component is usually manufactured from ultra-high molecular weight polyethylene (UHMWPE). To estimate the clinical complications related to a specific prosthesis design, we investigated four UHMWPE tibial inserts retrieved from patients from Clinical Hospital Colentina, Bucharest, Romania. For the initial analysis of the polyethylene degradation modes, macrophotography was chosen. A light stereomicroscope was used to estimate the structural performance and the implant surface degradation. Scanning electron microscopy confirmed the optical results and fulfilled the computation of the Hood index. The oxidation process in UHMWPE was analyzed based on Fourier-transform infrared spectroscopy (FTIR). The crystallinity degree and the oxidation index were computed in good agreement with the existing standards. Mechanical characterization was conducted based on the small punch test. The elastic modulus, initial peak load, ultimate load, and ultimate displacement were estimated. Based on the aforementioned experimental tests, a variation between 9 and 32 was found in the case of the Hood score. The oxidation index has a value of 1.33 for the reference sample and a maximum of 9.78 for a retrieved sample.
Language	English
Publishing date	2022-10-13
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2487261-1
ISSN	1996-1944
ISSN	1996-1944
DOI	10.3390/ma15207102
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Article: Technology support and post-adoption IT service use

Retana, German F / Forman, Chris / Narasimhan, Sridhar / Niculescu, Marius Florin / Wu, D. J

Management information systems : mis quarterly Vol. 42, No. 3 , p. 961-978

evidence from the cloud

2018 Volume 42, Issue 3, Page(s) 961–978

Author's details	German F. Retana, Chris Forman, Sridhar Narasimhan, Marius Florin Niculescu, and D. J. Wu
Keywords	IT service ; organizational learning ; IT use ; cloud computing ; infrastructure-as-a-service ; technology support ; service strategies
Language	English
Publisher	Carlson School of Management, University of Minnesota
Publishing place	Minneapolis, MN
Document type	Article
ZDB-ID	405089-7 ; 2068190-2
ISSN	2162-9730 ; 0276-7783
ISSN (online)	2162-9730
ISSN	0276-7783
Database	ECONomics Information System

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Article ; Online: Extra-articular distal tibia fractures-controversies regarding treatment options. A single-centre prospective comparative study.

Mioc, Mihail-Lazar / Prejbeanu, Radu / Deleanu, Bogdan / Anglitoiu, Bogdan / Haragus, Horia / Niculescu, Marius

International orthopaedics

2018 Volume 42, Issue 4, Page(s) 915–919

Abstract: Distal tibia fractures are reported to have a high complication rate pre-operatively as well as post-operatively, which can include open fractures, soft tissue damage, infection, malalignment, pseudarthrosis and ankle arthrosis. The operative treatment ... ...

Abstract	Distal tibia fractures are reported to have a high complication rate pre-operatively as well as post-operatively, which can include open fractures, soft tissue damage, infection, malalignment, pseudarthrosis and ankle arthrosis. The operative treatment for the extra-articular distal tibia fractures is a controversial topic in the orthopaedic literature. Some of these fractures are proximal enough to be treated with an intramedullary nail while others are too distal for that. The aim of our study was to compare the results we have had with intramedullary nail (IMN) and minimally invasive plate osteosynthesis (MIPO) in distal metaphyseal (extra-articular) tibia fractures. The study was designed prospectively between January 2013 and March 2016 and took place on the Orthopaedics and Traumatology ward of a Clinical Emergency County Hospital in western Romania. The follow-up visits were scheduled one month, three months and six months post-operatively. For evaluating the ankle function, we used the Olerud-Molander ankle score (OMAS) and union was evaluated at six months on ankle X-rays. At the six-month follow-up visit the average scores were 75.55 (20-100) for the IMN lot and 74.23 (20-90) for the MIPO lot, without finding any statistical difference between the two groups (p >0.1). At the six-month follow-up, X-ray union was objected in 48 (90.5%) of our patients, the IMN lot having worse results (85.18%) than the MIPO lot (96.15%). The results we encountered showed little to no statistical difference when it comes to the functional score we used (OMAS score), leading us to believe that you can achieve comparable results with both implants.
MeSH term(s)	Adolescent ; Adult ; Aged ; Ankle Fractures/surgery ; Ankle Joint/physiopathology ; Ankle Joint/surgery ; Bone Nails/adverse effects ; Bone Plates/adverse effects ; Female ; Follow-Up Studies ; Fracture Fixation, Internal/adverse effects ; Fracture Fixation, Internal/methods ; Fracture Healing ; Humans ; Male ; Middle Aged ; Minimally Invasive Surgical Procedures/adverse effects ; Minimally Invasive Surgical Procedures/methods ; Postoperative Complications/epidemiology ; Postoperative Complications/etiology ; Prospective Studies ; Romania ; Tibia/injuries ; Tibia/surgery ; Tibial Fractures/surgery ; Treatment Outcome ; Young Adult
Language	English
Publishing date	2018-01-22
Publishing country	Germany
Document type	Comparative Study ; Journal Article
ZDB-ID	80384-4
ISSN	1432-5195 ; 0341-2695
ISSN (online)	1432-5195
ISSN	0341-2695
DOI	10.1007/s00264-018-3775-4
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