Daniel Kluess
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View article: Computational study on the integration of a piezoelectric element into an uncemented revision hip stem for energy supply of smart implant functions
Computational study on the integration of a piezoelectric element into an uncemented revision hip stem for energy supply of smart implant functions Open
In the future, self-powered smart hip implants may enhance the longevity of total hip replacements. Uncemented hip stems aim to promote integration within the bone stock through electrical bone stimulation before loosening occurs, necessit…
View article: Detection of Total Hip Replacement Loosening Based on Structure-Borne Sound: Influence of the Position of the Sensor on the Hip Stem
Detection of Total Hip Replacement Loosening Based on Structure-Borne Sound: Influence of the Position of the Sensor on the Hip Stem Open
Accurate detection of implant loosening is crucial for early intervention in total hip replacements, but current imaging methods lack sensitivity and specificity. Vibration methods, already successful in dentistry, represent a promising ap…
View article: The Morphology of the Femur Influences the Fracture Risk during Stumbling and Falls on the Hip—A Computational Biomechanical Study
The Morphology of the Femur Influences the Fracture Risk during Stumbling and Falls on the Hip—A Computational Biomechanical Study Open
Proximal femur fracture risk depends on subject-specific factors such as bone mineral density and morphological parameters. Here, we aim to analyze the dependency of the femoral strength on sixteen morphological parameters. Therefore, fini…
View article: A new approach to identify wear regions on bearing surfaces of retrieved endoprostheses
A new approach to identify wear regions on bearing surfaces of retrieved endoprostheses Open
Although total hip replacements (THR) can be considered one of the most successful implantable medical devices in history, wear remains the ultimate challenge in order to further increase clinical success. Wear assessment on retrieved impl…
View article: Multifunctional Hybrid Material for Endoprosthetic Implants Based on Alumina-Toughened Zirconia Ceramics and Additively Manufactured TiNbTa Alloys
Multifunctional Hybrid Material for Endoprosthetic Implants Based on Alumina-Toughened Zirconia Ceramics and Additively Manufactured TiNbTa Alloys Open
Aseptic implant loosening after a total joint replacement is partially influenced by material-specific factors when cobalt–chromium alloys are used, including osteolysis induced by wear and corrosion products and stress shielding. Here, we…
View article: Monitoring of Hip Joint Forces and Physical Activity after Total Hip Replacement by an Integrated Piezoelectric Element
Monitoring of Hip Joint Forces and Physical Activity after Total Hip Replacement by an Integrated Piezoelectric Element Open
Resultant hip joint forces can currently only be recorded in situ in a laboratory setting using instrumented total hip replacements (THRs) equipped with strain gauges. However, permanent recording is important for monitoring the structural…
View article: Multifunctional Hybrid Material for Endoprosthetic Implants Based on Alumina-Toughened Zirconia Ceramics and Additively Manufactured TiNbTa Alloy
Multifunctional Hybrid Material for Endoprosthetic Implants Based on Alumina-Toughened Zirconia Ceramics and Additively Manufactured TiNbTa Alloy Open
Aseptic implant loosening after total joint replacement is partially influenced by material-specific factors when cobalt-chromium alloys are used, including osteolysis induced by wear- and corrosion products, and stress shielding. Here, we…
View article: Do hip resurfacing and short hip stem arthroplasties differ from conventional hip stem replacement regarding impingement‐free range of motion?
Do hip resurfacing and short hip stem arthroplasties differ from conventional hip stem replacement regarding impingement‐free range of motion? Open
Total hip joint replacement (THR) is clinically well‐established. In this context, the resulting range of motion (ROM) is crucial for patient satisfaction when performing joint movements. However, the ROM for THR with different bone preser…
View article: Correction: Lange et al. Performance of a Piezoelectric Energy Harvesting System for an Energy-Autonomous Instrumented Total Hip Replacement: Experimental and Numerical Evaluation. Materials 2021, 14, 5151
Correction: Lange et al. Performance of a Piezoelectric Energy Harvesting System for an Energy-Autonomous Instrumented Total Hip Replacement: Experimental and Numerical Evaluation. Materials 2021, 14, 5151 Open
The authors wish to make the following corrections to their paper [...]
View article: Computational Analysis of Bone Remodeling in the Proximal Tibia Under Electrical Stimulation Considering the Piezoelectric Properties
Computational Analysis of Bone Remodeling in the Proximal Tibia Under Electrical Stimulation Considering the Piezoelectric Properties Open
The piezoelectricity of bone is known to play a crucial role in bone adaptation and remodeling. The application of an external stimulus such as mechanical strain or electric field has the potential to enhance bone formation and implant oss…
View article: Performance of a Piezoelectric Energy Harvesting System for an Energy-Autonomous Instrumented Total Hip Replacement: Experimental and Numerical Evaluation
Performance of a Piezoelectric Energy Harvesting System for an Energy-Autonomous Instrumented Total Hip Replacement: Experimental and Numerical Evaluation Open
Instrumented implants can improve the clinical outcome of total hip replacements (THRs). To overcome the drawbacks of external energy supply and batteries, energy harvesting is a promising approach to power energy-autonomous implants. Ther…
View article: Endurance testing and finite element simulation of a modified hip stem for integration of an energy harvesting system
Endurance testing and finite element simulation of a modified hip stem for integration of an energy harvesting system Open
Instrumented implants are a promising approach to further improve the clinical outcome of total hip arthroplasties. For the integrated sensors or active functions, an electrical power supply is required. Energy harvesting concepts can prov…
View article: Design Study on Customised Piezoelectric Elements for Energy Harvesting in Total Hip Replacements
Design Study on Customised Piezoelectric Elements for Energy Harvesting in Total Hip Replacements Open
Energy harvesting is a promising approach to power novel instrumented implants that have passive sensory functions or actuators for therapeutic measures. We recently proposed a new piezoelectric concept for energy harvesting in total hip r…
View article: Reporting checklist for verification and validation of finite element analysis in orthopedic and trauma biomechanics
Reporting checklist for verification and validation of finite element analysis in orthopedic and trauma biomechanics Open
Finite element analysis (FEA) has become a fundamental tool for biomechanical investigations in the last decades. Despite several existing initiatives and guidelines for reporting on research methods and results, there are still numerous i…
View article: An MRI-Based Patient-Specific Computational Framework for the Calculation of Range of Motion of Total Hip Replacements
An MRI-Based Patient-Specific Computational Framework for the Calculation of Range of Motion of Total Hip Replacements Open
The calculation of range of motion (ROM) is a key factor during preoperative planning of total hip replacements (THR), to reduce the risk of impingement and dislocation of the artificial hip joint. To support the preoperative assessment of…
View article: Finite element analysis of bone remodelling with piezoelectric effects using an open-source framework
Finite element analysis of bone remodelling with piezoelectric effects using an open-source framework Open
Bone tissue exhibits piezoelectric properties and thus is capable of transforming mechanical stress into electrical potential. Piezoelectricity has been shown to play a vital role in bone adaptation and remodelling processes. Therefore, to…
View article: A piezoelectric energy harvesting concept for an energy-autonomous instrumented total hip replacement
A piezoelectric energy harvesting concept for an energy-autonomous instrumented total hip replacement Open
To improve the clinical outcome of total hip replacements (THRs), instrumented implants with sensory functions for implant monitoring and diagnostics or actuators for therapeutic measures are a promising approach. Therefore, an adequate en…
View article: Primary stability of a cementless modular revision hip stem in relation with the femoral defect size: A biomechanical study
Primary stability of a cementless modular revision hip stem in relation with the femoral defect size: A biomechanical study Open
Purpose: Cementless modular fluted hip stems are commonly used in revision arthroplasty. Nevertheless, there is a wide spectrum of recommendations concerning the minimum bone stock required to enable osseous ingrowth and implant–bone micro…
View article: Effect of surgical parameters on the biomechanical behaviour of bicondylar total knee endoprostheses – A robot-assisted test method based on a musculoskeletal model
Effect of surgical parameters on the biomechanical behaviour of bicondylar total knee endoprostheses – A robot-assisted test method based on a musculoskeletal model Open
The complicated interplay of total knee replacement (TKR) positioning and patient-specific soft tissue conditions still causes a considerable number of unsatisfactory outcomes. Therefore, we deployed a robot-assisted test method, in which …
View article: Surgically Relevant Morphological Parameters of Proximal Human Femur: A Statistical Analysis Based on 3D Reconstruction of CT Data
Surgically Relevant Morphological Parameters of Proximal Human Femur: A Statistical Analysis Based on 3D Reconstruction of CT Data Open
Objectives Recently, more accurate description of the femoral geometry has become of interest to engineers and orthopedic surgeons. However, an appropriate database is lacking. Therefore, the aim of this study is to present morphological p…
View article: Dynamical analysis of dislocation‐associated factors in total hip replacements by hardware‐in‐the‐loop simulation
Dynamical analysis of dislocation‐associated factors in total hip replacements by hardware‐in‐the‐loop simulation Open
Since dislocation of total hip replacements (THR) remains a clinical problem, its mechanisms are still in the focus of research. Previous studies ignored the impact of soft tissue structures and dynamic processes or relied on simplified jo…
View article: Numerical simulation of mechanically stimulated bone remodelling
Numerical simulation of mechanically stimulated bone remodelling Open
The numerical simulation of bone remodelling provides a great opportunity to improve the choice of therapy in particular for complex bone defects. Despite this fact, its use in clinical practice is not yet expedient because of several unre…