Search results for "NTIC"

Two different posterior-stabilized mobile-bearing TKA designs: navigator evaluation of intraoperative kinematic differences

2020

Purpose: The purpose of this study was to compare two types of posterior-stabilized (PS) mobile-bearing (MB) total knee arthroplasties (TKAs). The hypothesis was that no major differences were going to be found among the two TKA designs. Methods: Two cohorts of patients who were divided according to implant design (Cohort A, new design gradually reducing radius PS MB TKA; Cohort B, traditional dual-radius PS MB TKA) were analyzed by means of intraoperative navigation. All operations were guided by a non-image-based navigation system that recorded relative femoral and tibial positions in native and implanted knees during the following kinematic tests: passive range of motion (PROM), varus–va…

Kinematics and kinetics analysis of midfoot joints of 30 normal subjects during walking

2016

Abstract Introduction There is not enough evidence in form of clinical studies regarding the behavior of the midfoot joints in dynamic situations such us walking or running. The present work aims to study the mechanical behavior of midfoot joints with a multisegmented foot model with special interest in joint moments and their clinical significance. Subjects and methods A computerized 3-dimensional gait study was performed on healthy male adult subjects with a neutral Foot Posture Index (FPI) (from 0 to +5) during walking. Joint angle and external moments were estimated with a multisegment foot model that considers three separate segments (forefoot, rearfoot and hallux) and graphs and value…

The effect of cement fixation on initial micromotion of the femoral component in condylar knee replacement

1992

Four fresh, cadaveric specimens were fitted with total knee replacements and mounted on a knee joint loading and measuring rig. Femoral component micromotion in the sagittal plane was measured with a transducer during flexion and extension of the specimen. Various condylar designs were used without and with cement. Movement followed a characteristic curve pattern and was less with cement fixation particularly for bone of low trabecular strength as determined by bone sample tests for stiffness. Cement fixation appears to be superior to cementless fixation.

Comparison of Postoperative Coronal Leg Alignment in Customized Individually Made and Conventional Total Knee Arthroplasty

2021

Neutral coronal leg alignment is known to be important for postoperative outcome in total knee arthroplasty (TKA). Customized individually made implants (CIM) instrumented with patient-specific cutting guides are an innovation aiming to increase the precision and reliability of implant positioning and reconstruction of leg alignment. We aimed to compare reconstruction of the hip–knee–ankle angle (HKA) of the novel CIM system iTotal™ CR G2 (ConforMIS Inc.) to a matched cohort of the off-the-shelf (OTS) knee replacement system Vanguard™ CR (Zimmer Biomet). Retrospective analysis of postoperative coronal full-leg weight-bearing radiographs of 562 TKA (283 CIM TKA, 279 OTS TKA) was conducted. V…

In Vitro Study on Bone Heating during Drilling of the Implant Site: Material, Design and Wear of the Surgical Drill

2020

Objective: An in vitro study was made to compare mean thermal variation according to the material, design and wear of the surgical drills used during dental implant site preparation. Material and methods: Three study groups (stainless steel drills with straight blades

Ricostruire/Riedificare dopo la fine del Moderno. Il progetto di architettura sulle vestigia dell’antico

2020

Il tema è, da una parte, la ricostruzione del monumento in un quadro di restituzione iconica e identitaria, e dall’altra quello della ricostruzione dei centri storici e di parti intere di città in un quadro di emergenza ambientale. Essi sono strettamente connessi e hanno a che fare con una comune teoria della rovina che comprende indistintamente le distruzioni per eventi naturali, quelle per eventi bellici e naturalmente quelle per mano del tempo, osservate tutte in una prospettiva formale delle vestigia e del loro potenziale di persistenza come patrimonio. The theme is, on the one hand, the reconstruction of the monument in a framework of iconic and identity restitution, and on the other t…

Herakleides Pontikos und die ps.-Plutarchische Schrift Peri Mousikes

2020

Si cerca di dimostrare che gli studiosi finora (seguendo Westphal) hanno attribuito troppe parti del trattatello ps.-plutarcheo "De musica" a Eraclide Pontico; a quest´ ultimo l´ ignoto autore ha attinto in realta´ solo quello che dice di aver letto nell´ iscrizione di Sicione. We try to show that up to now scholars (following Westphal) have attributed too many parts of the ps.-plutarcheo tract "De musica" to Eraclide Pontico; the unknown author drew from the latter only what he says he read in Sicyon's inscription.

Pedagogisia merkityksiä koulun musiikintunneilla perusopetuksen yläluokkien oppilaiden näkökulmasta

2011

The unspoken pressure of tradition : East Asian classical musicians in western classical music

2013

Itäaasialaisia klassisia muusikoita käsittelevät artikkelit ovat olleet yleisiä eurooppalaisissa klassisen musiikin lehdissä siitä lähtien kun itäaasialaiset alkoivat yhä suuremmassa määrin voittaa kansainvälisiä musiikkikilpailuita ja luoda kansainvälistä uraa 1900-luvun viimeisinä vuosikymmeninä. Läntinen taidemusiikki on kansainvälistymässä aikana, jolloin pelot klassisen musiikin kuolemasta ovat myös päässeet otsikoihin Euroopassa. Itäaasialaiset muusikot työskentelevät kompleksisella kulttuurien kentällä, jossa heidän muusikkoutensa on jatkuvasti arvostelun alaisena. Tämän tutkimuksen tarkoitus oli saada selville, miten itäaasialaiset klassiset muusikot ja heidän kulttuurinen identitee…

Méta-modélisation de l’interception de la lumière dans un couvert cultures: adventices

2017

EAGESTAD DOCT INRA; Dans le modèle parcelle virtuelle de dynamique de la flore adventice, FLORSYS, 70% du temps de calcul est utilisé par le module 3D d’interception de la lumière dont dépend la compétition des cultures et des adventices pour la lumière et la croissance des plantes. Afin d’accélérer le calcul, nous avons utilisé une méthode pour méta-modéliser le module. Cette méthode permet aussi réaliser une analyse de sensibilité. La hauteur et la largeur des plantes ont été identifiées comme des variables primordiales pour prédire l’interception de la lumière par le couvert.