Optimizing Revision Total Knee Arthroplasty: An In-Depth Analysis of 3D Planning Prediction and Patient-Specific Instruments for Revision Surgery

In today’s medicine, 3D planning and PSI are not commonly used in revision TKA surgery and little is known about the accuracy and implementation of these techniques in revision TKA. Therefore, the question arises, what are the potential benefits of 3D planning and PSI in revision surgery? The goal of this thesis is to explore the potential...

Design of the new structure and capabilities of LADM edition II including 3D aspects

The decision to refine the existing content and to extend the scope of Edition I of the ISO 19152:2012 Land Administration Domain Model (LADM) is a response to requests from the international Land Administration (LA) community. This response has to be formally organised in accordance with ISO guidelines. This begins with gathering feedback...

Innovative design and evaluation of a reusable drill guide for distal cement plug removal in total hip arthroplasty revision

Distal cement plug removal in total hip arthroplasty revision is a time-consuming and technically challenging procedure. There is a risk of perforating the femur while drilling in the cement plug. This risk increases when the orientation of the prosthesis tip is excentric. The aim of this study was to design a reusable drill guide that...

Technical Evaluation of Trabecular Metal Augments and Custom Implants in Severe Acetabular Bone Deficiencies

Introduction: Revision total hip arthroplasty (THA) can be challenging in patients with severe acetabular bone defects and there is no consensus on the preferred reconstruction technique in this population. The aim of this study is to determine the biomechanical differences between Trabecular Metal Acetabular Revision System (TMARS) and Custom...

The endogenous dynamics induced by Algorithmic Recourse

Machine learning classifiers have become a household tool for banks, companies, and government institutes for automated decision-making. In order to help explain why a person was classified a certain way, a solution was proposed that could generate these counterfactual explanations. Several generators have been introduced and tested but include...

Investigating 3D spatial units’ types as basis for refined 3D spatial profiles in the context of LADM revision

Dense urbanisation has led to an increasing demand and pressure for land development, resulting in the partition of 3D space into different owners sharing delimited property interests on, above or below the land surface. Consequently, cadastral spatial units range from simple, but most common, 2D, to complex 3D collections of spaces worldwide,...

3D Cadastre and LADM – Needs and Expectations towards LADM Revision

The last decade, significant progress has been made in advancing the concept of 3D Cadastre and related technologies to facilitate its realisation. There are many examples of partial implementation and prototypes of 3D parcels registration around the world as stated by Kitsakis et al (2016) and Dimopoulou et al (2016) regarding selected...

Investigating 3D spatial unit's as basis for refined 3D spatial profiles in the context of LADM revision

Dense urbanisation has led to an increasing demand and pressure for land development, resulting in the partition of 3D space into different owners sharing delimited property interests on, above or below the land surface. Consequently, cadastral spatial units range from simple, but most common, 2D, to complex 3D collections of spaces worldwide,...

3D Cadastre and LADM - Needs and Expectations towards LADM Revision

The last decade, significant progress has been made in advancing the concept of 3D Cadastre and related technologies to facilitate its realisation. There are many examples of partial implementation and prototypes of 3D parcels registration around the world as stated by Kitsakis et al (2016) and Dimopoulou et al (2016) regarding selected...

LearningQ: A Large-scale Dataset for Educational Question Generation

We present LearningQ, a challenging educational question generation dataset containing over 230K document-question pairs. It includes 7K instructor-designed questions assessing knowledge concepts being taught and 223K learner-generated questions seeking in-depth understanding of the taught concepts. We show that, compared to existing datasets...

Improving hip revision surgery: by integrating a procedure, instrument set and instrument for bone cement removal

When people experience pain, discomfort or motion limitation in their hip joint they can get a hip implant. This implant improves the movement and decreases the pain and discomfort. Due to several reasons such an implant needs revision after ten to fifteen years. This revision surgery is a long and invasive surgery. When an implant is fixated...

Peri-prosthetic tissue cells show osteogenic capacity to differentiate into the osteoblastic lineage

During the process of aseptic loosening of prostheses, particulate wear debris induces a continuous inflammatory-like response resulting in the formation of a layer of fibrous peri-prosthetic tissue at the bone-prosthesis interface. The current treatment for loosening is revision surgery which is associated with a high-morbidity rate,...

De ontwikkeling van twee cd-roms

Zowel voor TSD als voor Revision is een cd-rom ontwikkeld. Voor TSD is dit een digitaal visitekaartje; een korte bedrijfspresentatie om aan (nieuwe) klanten te laten zien wat TSD te bieden heeft. Hierbij is gebruikt worden gemaakt van 3D elementen en is de inhoud door de opdrachtgever later zelf in te vullen. De cd-rom voor Revision bestaat uit...

Strengthening the link between theory and practice in teaching design engineering: An empirical study on a new approach

In 2007, the Faculty of Industrial Design Engineering of the Delft University of Technology introduced a new bachelor program. Based on theories of learning and instruction three design principles were used to develop an approach that aims to make it easier for students to bridge the gap between theoretical design engineering courses and...

Uncertainty assessment via Bayesian revision of ensemble streamflow predictions in the operational river Rhine forecasting system

Ensemble streamflow forecasts obtained by using hydrological models with ensemble weather products are becoming more frequent in operational flow forecasting. The uncertainty of the ensemble forecast needs to be assessed for these products to become useful in forecasting operations. A comprehensive framework for Bayesian revision has been...

Developing a House Price Index for The Netherlands: A Practical Application of Weighted Repeat Sales

This paper describes the development of a house price index that has been introduced in May 2005 in The Netherlands. This monthly index, called Woningwaarde Index Kadaster (House Price Index Kadaster), is designed to detect changes in the price of the overall stock of owner-occupied homes. Fifty-five indices are calculated: one overall index,...

Offices for living in: An instrument for measuring the potential for transforming offices into homes

A large number of office premises seem difficult to rent out because they no longer meet the demands of the market. A solution must be found for these premises and also for office buildings that have been empty for longer periods. Reallocation or transformation to other functions such as homes can be envisaged here. In addition, due to the lack...

Proposal for revision of ISO 4377: Flat-V weirs

In ISO/TC 113/SC 2/308 it was suggested that ISO 4377 could be significantly simplified as far as the calculation of discharge was involved. The proposal for revision is based upon this suggestion. The revision is fully based upon the material given in ISO 4377. In that respect no changes have been made. The result of the revision is, that i)...