Peter Augat
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View article: Does undersizing of the tibial component in unicompartmental knee arthroplasty increase the risk of fracture? A biomechanical study
Does undersizing of the tibial component in unicompartmental knee arthroplasty increase the risk of fracture? A biomechanical study Open
Background Unicompartmental knee arthroplasty (UKA) is a common treatment for medial osteoarthritis, providing faster recovery and better joint kinematics than total knee arthroplasty (TKA). However, periprosthetic tibial plateau fractures…
View article: German translation of the Characterizing Freezing of gait questionnaire: implementation of the TRAPD process
German translation of the Characterizing Freezing of gait questionnaire: implementation of the TRAPD process Open
Background Freezing of Gait (FOG) is a severe symptom of Parkinson’s Disease (PD) that affects mobility and quality of life. The ‘Characterizing Freezing of Gait Questionnaire’ (C-FOG) is an assessment tool for screening and determining su…
View article: Influence of fracture morphology and working length on shear motion and construct stiffness in osteosynthesis constructs
Influence of fracture morphology and working length on shear motion and construct stiffness in osteosynthesis constructs Open
View article: The Neutral Hinge for Medial Closing Wedge Distal Femur Osteotomy. A 3-dimensional Surgical Simulation Study
The Neutral Hinge for Medial Closing Wedge Distal Femur Osteotomy. A 3-dimensional Surgical Simulation Study Open
Background: Because a valgus deformity is frequently associated with patellar instability, medial closed wedge distal femoral osteotomy (MCWDFO) has gained popularity. While the influence of MCWDFO on the leg axis in the coronal plane is w…
View article: Screw pullout strength in osteoporotic bone: A comparative study of synthetic femur surrogates
Screw pullout strength in osteoporotic bone: A comparative study of synthetic femur surrogates Open
Synthetic bone models are frequently used in biomechanical research to assess the fixation strength of implants. Due to their inherent material properties they often overestimate fixation performance - especially in osteoporotic bone, wher…
View article: Simulated Gastrocnemius Traction Alters Interfragmentary Motion in Hoffa Fracture Fixation
Simulated Gastrocnemius Traction Alters Interfragmentary Motion in Hoffa Fracture Fixation Open
Background Hoffa fractures remain biomechanically challenging due to their intra-articular location and limited fixation surface. The influence of posterior muscle forces—particularly from the gastrocnemius—on interfragmentary motion has n…
View article: Biomechanical evaluation of cerclage wiring in plated tibia fractures using human and synthetic specimens
Biomechanical evaluation of cerclage wiring in plated tibia fractures using human and synthetic specimens Open
View article: Up and down – The impact of calcaneal fracture on medial gastrocnemius fascicle behavior and ankle biomechanics during heel-rise performance
Up and down – The impact of calcaneal fracture on medial gastrocnemius fascicle behavior and ankle biomechanics during heel-rise performance Open
Impaired foot stability and alignment originating from altered calcaneal anatomy after fracture, rather than muscle deficits, primarily contribute to a reduced ankle joint function one year post-surgery.
View article: Multibody kinematics optimization for motion reconstruction of the human upper extremity using potential field method
Multibody kinematics optimization for motion reconstruction of the human upper extremity using potential field method Open
Motion reconstruction provides essential inputs for analyzing human movement through musculoskeletal simulations. To reconstruct joint angles from motion capture data, several multibody kinematic optimization methods have been developed. H…
View article: Membrane Filtration of Sonication Fluid—A Promising Adjunctive Method for the Diagnosis of Low‐Grade Infection in Presumed Aseptic Nonunion
Membrane Filtration of Sonication Fluid—A Promising Adjunctive Method for the Diagnosis of Low‐Grade Infection in Presumed Aseptic Nonunion Open
Treatment guidelines for fracture nonunion differ based on the presence or absence of infection. Low‐grade infections without preoperative clinical signs of infection are difficult to distinguish from aseptic cases. Membrane filtration of …
View article: Impact of fracture morphology on the biomechanical stability of osteosynthetic fixation
Impact of fracture morphology on the biomechanical stability of osteosynthetic fixation Open
Biomechanical testing is essential for evaluating osteosyntheses, particularly in assessing stability, stiffness, and fragment motion. However, traditional flat-fracture models created via osteotomy fail to replicate the complex morphology…
View article: Low-grade infections in nonunion of the femur and tibia without clinical suspicion of infection – Incidence, microbiology, treatment, and outcome
Low-grade infections in nonunion of the femur and tibia without clinical suspicion of infection – Incidence, microbiology, treatment, and outcome Open
Treatment algorithms for fracture nonunion depend on the presence or absence of bacterial infection. However, it is often impossible to identify infection preoperatively. While some infections may present with clinical signs of infection, …
View article: Population-specific femur models: A step towards improved osteosynthetic biomechanical testing in orthopaedics
Population-specific femur models: A step towards improved osteosynthetic biomechanical testing in orthopaedics Open
The developed synthetic femur model offers a promising solution for addressing the limitations of current bone surrogates in biomechanical testing. By incorporating population-specific characteristics these models provide a more accurate r…
View article: Does minimally invasive external fixation of proximal humerus fractures provide adequate stability? A biomechanical in vitro study
Does minimally invasive external fixation of proximal humerus fractures provide adequate stability? A biomechanical in vitro study Open
Our results suggest that the external fixator system allows early but gentle postoperative mobilisation. More aggressive rehabilitation measures should be postponed after the healing of the fracture.
View article: High accuracy in lower limb alignment analysis using convolutional neural networks, with improvements needed for joint‐level metrics
High accuracy in lower limb alignment analysis using convolutional neural networks, with improvements needed for joint‐level metrics Open
Purpose Evaluation of long‐leg standing radiographs (LSR) is a standardised procedure for analysis of primary or secondary deformities of the lower limbs. Deep‐learning convolutional neural networks (CNN) offer the potential to enhance rad…
View article: Efficacy of Real-Time Feedback Exercise Therapy in Patients Following Total Hip Arthroplasty: Protocol for a Pilot Cluster-Randomized Controlled Trial
Efficacy of Real-Time Feedback Exercise Therapy in Patients Following Total Hip Arthroplasty: Protocol for a Pilot Cluster-Randomized Controlled Trial Open
Background Osteoarthritis of the hip joint is an increasing functional and health-related problem. The most common surgical treatment is hip replacement to reduce pain and improve function. Rehabilitation after total hip arthroplasty (THA)…
View article: Impact of lateral cortical notching on biomechanical performance in cephalomedullary nailing for unstable pertrochanteric fractures
Impact of lateral cortical notching on biomechanical performance in cephalomedullary nailing for unstable pertrochanteric fractures Open
View article: Biomechanical validation of novel polyurethane-resin synthetic osteoporotic femoral bones in axial compression, four-point bending and torsion
Biomechanical validation of novel polyurethane-resin synthetic osteoporotic femoral bones in axial compression, four-point bending and torsion Open
View article: Assessment of implant internal stresses under physiological femoral loading: Translation to a simplified bending load model
Assessment of implant internal stresses under physiological femoral loading: Translation to a simplified bending load model Open
The success of surgical treatment for fractures hinges on various factors, notably accurate surgical indication. The process of developing and certifying a new osteosynthesis device is a lengthy and costly process that requires multiple cy…
View article: The infraacetabular screw versus the antegrade posterior column screw in acetabulum fractures with posterior column involvement: a biomechanical comparison
The infraacetabular screw versus the antegrade posterior column screw in acetabulum fractures with posterior column involvement: a biomechanical comparison Open
Introduction Traditionally, plate osteosynthesis of the anterior column combined with an antegrade posterior column screw is used for fixation of anterior column plus posterior hemitransverse (ACPHT) acetabulum fractures. Replacing the pos…
View article: Evaluation of Meniscal Load and Load Distribution in the Sound Canine Stifle at Different Angles of Flexion
Evaluation of Meniscal Load and Load Distribution in the Sound Canine Stifle at Different Angles of Flexion Open
Objectives The aim of the study was to investigate the contact mechanics and kinematic changes in the stifle in different standing angles. Study Design We performed a biomechanical ex vivo study using pairs of canine cadaver hindlimbs. Mot…
View article: Distal femur fractures: basic science and international perspectives
Distal femur fractures: basic science and international perspectives Open
Distal femur fractures are challenging injuries to manage, and complication rates remain high. This article summarizes the international and basic science perspectives regarding distal femoral fractures that were presented at the 2022 Orth…
View article: Open the pores – Polydimethylsiloxane influences the porous structure of cancellous bone surrogates for biomechanical testing of osteosyntheses
Open the pores – Polydimethylsiloxane influences the porous structure of cancellous bone surrogates for biomechanical testing of osteosyntheses Open
Synthetic materials used for valid and reliable implant testing and design should reflect the mechanical and morphometric properties of human bone. Such bone models are already available on the market, but they do not reflect the populatio…
View article: Tibial tuberosity‐trochlear groove distance is significantly decreased by medial closing wedge distal femoral osteotomy
Tibial tuberosity‐trochlear groove distance is significantly decreased by medial closing wedge distal femoral osteotomy Open
Purpose While medial closing wedge distal femoral osteotomy (MCWDFO) has been used to address patella instability combined with valgus malalignment, its impact on patellofemoral parameters remains uncharted. Hence, this study seeks to esta…
View article: Does minimally invasive external fixation of proximal humerus fractures provide adequate biomechanical stability?
Does minimally invasive external fixation of proximal humerus fractures provide adequate biomechanical stability? Open
INTRODUCTION : Proximal humerus fractures are usually treated with rigid angle-stable plates or nails. As an alternative, semi-rigid, minimally invasive systems have been developed for supportive fixation. A new system uses this principle …
View article: Bewegungsanalyse bei Querschnittverletzungen
Bewegungsanalyse bei Querschnittverletzungen Open
Zusammenfassung Für motorisch inkomplette Querschnittgelähmte ist eine Verbesserung der Gehfunktion ein wichtiges Ziel im Rehabilitationsprogramm. In den spezialisierten Behandlungszentren dienen der 6‑Minuten-Gehtest, der 10-Meter-Gehtest…
View article: The value of sonication in the differential diagnosis of septic and aseptic femoral and tibial shaft nonunion in comparison to conventional tissue culture and histopathology: a prospective multicenter clinical study
The value of sonication in the differential diagnosis of septic and aseptic femoral and tibial shaft nonunion in comparison to conventional tissue culture and histopathology: a prospective multicenter clinical study Open
Background Septic and aseptic nonunion require different therapeutic strategies. However, differential diagnosis is challenging, as low-grade infections and biofilm-bound bacteria often remain undetected. Therefore, the examination of biof…
View article: Evidence on treatment of clavicle fractures
Evidence on treatment of clavicle fractures Open
View article: Risk of Interprosthetic Femur Fracture Is Associated with Implant Spacing—A Biomechanical Study
Risk of Interprosthetic Femur Fracture Is Associated with Implant Spacing—A Biomechanical Study Open
Background: Ipsilateral revision surgeries of total hip or knee arthroplasties due to periprosthetic fractures or implant loosening are becoming more frequent in aging populations. Implants in revision arthroplasty usually require long anc…
View article: Cerclage Wiring Improves Biomechanical Stability in Distal Tibia Spiral Fractures Treated by Intramedullary Nailing
Cerclage Wiring Improves Biomechanical Stability in Distal Tibia Spiral Fractures Treated by Intramedullary Nailing Open
Background: Partial weight-bearing after operatively treated fractures has been the standard of care over the past decades. Recent studies report on better rehabilitation and faster return to daily life in case of immediate weight-bearing …