Joshua Twiggs
YOU?
Author Swipe
View article: Clinical accuracy of humeral and glenoid component placement in total shoulder arthroplasty using ASTRA patient-specific guides
Clinical accuracy of humeral and glenoid component placement in total shoulder arthroplasty using ASTRA patient-specific guides Open
Background: Malalignment of the humeral and glenoid components in total shoulder arthroplasty is associated with complications such as instability, implant loosening, and restricted motion. While the accuracy of patient-specific instrument…
View article: Cementless Tibial Fixation Results in Slower Recovery but Equivalent Outcome at 12 months in Primary Total Knee Arthroplasty
Cementless Tibial Fixation Results in Slower Recovery but Equivalent Outcome at 12 months in Primary Total Knee Arthroplasty Open
Cementless tibial fixation resulted in slower improvement in patient-reported outcome measures during the first 3 to 6 months postoperatively. Patients planned for cementless tibial fixation should be counseled that their recovery may not …
View article: Coronal plane alignment of the knee classification system does not reliably predict tibiofemoral joint gaps in arthritic knees undergoing total knee arthroplasty
Coronal plane alignment of the knee classification system does not reliably predict tibiofemoral joint gaps in arthritic knees undergoing total knee arthroplasty Open
Purpose Achieving optimal mediolateral balance in extension and flexion is critical for improving outcomes in total knee arthroplasty (TKA). Knee classification tools, like coronal plane alignment of the knee (CPAK), do not directly consid…
View article: Variability of three‐dimensional knee morphology cannot be effectively assessed using a coronal plane knee alignment classification in total knee arthroplasty patients
Variability of three‐dimensional knee morphology cannot be effectively assessed using a coronal plane knee alignment classification in total knee arthroplasty patients Open
Purpose Optimal reproduction of the native three‐dimensional (3D) alignment in total knee arthroplasty (TKA) influences outcomes; however, much of the modern TKA alignment research, such as the coronal plane alignment of the knee (CPAK), f…
View article: Functional preoperative assessment of coronal knee laxity better predicts postoperative patient outcomes than intraoperative surgeon‐defined laxity in total knee arthroplasty
Functional preoperative assessment of coronal knee laxity better predicts postoperative patient outcomes than intraoperative surgeon‐defined laxity in total knee arthroplasty Open
Purpose Intraoperative laxity assessments in total knee arthroplasty (TKA) are subjective, with few studies comparing against standardised preoperative and postoperative assessments. This study compares coronal knee laxity in TKA patients …
View article: Functional References for Tibial Axial Rotation in Total Knee Arthroplasty
Functional References for Tibial Axial Rotation in Total Knee Arthroplasty Open
Excessive post-operative tibiofemoral rotational mismatch can result in inferior patient outcomes. This highlights the importance considering the femoral axial alignment during tibial axial alignment. This study investigates different tibi…
View article: Novel Patellofemoral Ligament Modelling to Detect Anterior Knee Pain After Total Knee Arthroplasty
Novel Patellofemoral Ligament Modelling to Detect Anterior Knee Pain After Total Knee Arthroplasty Open
Up to 35% of total knee arthroplasty (TKA) patients experience short term anterior knee pain (AKP) and up to 20% of non-revised knees experience anterior knee pain in the long term. Patellofemoral pain is the primary cause of AKP and accou…
View article: Comparison of iliopsoas tendonitis after hip resurfacing arthroplasty and total hip arthroplasty: A case‐controlled investigation using a validated simulation
Comparison of iliopsoas tendonitis after hip resurfacing arthroplasty and total hip arthroplasty: A case‐controlled investigation using a validated simulation Open
Iliopsoas tendonitis, typically caused by impingement with the acetabular cup, occurs in up to 18% of patients after total hip arthroplasty (THA) and up to 30% of patients after hip resurfacing arthroplasty (HRA). We have developed a simul…
View article: Iliopsoas tendonitis after total hip arthroplasty
Iliopsoas tendonitis after total hip arthroplasty Open
Aims Iliopsoas impingement occurs in 4% to 30% of patients after undergoing total hip arthroplasty (THA). Despite a relatively high incidence, there are few attempts at modelling impingement between the iliopsoas and acetabular component, …
View article: Comparison of a Novel Joint Distraction Radiology Protocol in Total Knee Arthroplasty Planning with Navigated Joint Gaps
Comparison of a Novel Joint Distraction Radiology Protocol in Total Knee Arthroplasty Planning with Navigated Joint Gaps Open
Native extension and flexion joint gaps are primarily measured intraoperatively using devices such as navigation systems or tensioners, but there are advantages to being able to pre-operatively plan to such gaps. This study aims to validat…
View article: Validation of a Patient Outcome Prediction Tool Relative to Surgeon Predictions of Patient Outcome in Total Knee Arthroplasty
Validation of a Patient Outcome Prediction Tool Relative to Surgeon Predictions of Patient Outcome in Total Knee Arthroplasty Open
A key goal of all TKA alignment strategies is to achieve joint balance. This study aims to compare the alignments achieved by preoperatively planning to a novel distracted joint gap protocol to common alignment strategies as well as to the…
View article: Population Level Validation of a Novel Joint Distraction Radiology Protocol in Total Knee Arthroplasty Planning
Population Level Validation of a Novel Joint Distraction Radiology Protocol in Total Knee Arthroplasty Planning Open
A key goal of all TKA alignment strategies is to achieve joint balance. This study aims to compare the alignments achieved by preoperatively planning to a novel distracted joint gap protocol to common alignment strategies as well as to the…
View article: Leg length discrepancy assessment in total hip arthroplasty: is a pelvic radiograph sufficient?
Leg length discrepancy assessment in total hip arthroplasty: is a pelvic radiograph sufficient? Open
Aims Leg length discrepancy (LLD) is a common pre- and postoperative issue in total hip arthroplasty (THA) patients. The conventional technique for measuring LLD has historically been on a non-weightbearing anteroposterior pelvic radiograp…
View article: Patient‐reported impairment following TKA is reduced when a computationally simulated predicted ideal alignment is achieved
Patient‐reported impairment following TKA is reduced when a computationally simulated predicted ideal alignment is achieved Open
Purpose Joint dynamics following Total Knee Arthroplasty (TKA) may influence patient‐reported outcome. Simulations allow many knee alignment approaches to a single patient to be considered prior to surgery. The simulated kinematics can be …
View article: Functional Femoral Anteversion: Axial Rotation of the Femur and its Implications for Stem Version Targets in Total Hip Arthroplasty
Functional Femoral Anteversion: Axial Rotation of the Femur and its Implications for Stem Version Targets in Total Hip Arthroplasty Open
View article: Pre- and postoperative physiotherapy using a digital application decreases length of stay without reducing patient outcomes following total knee arthroplasty
Pre- and postoperative physiotherapy using a digital application decreases length of stay without reducing patient outcomes following total knee arthroplasty Open
Introduction Total Knee Arthroplasty (TKA) for both patients and the surgical team is a journey spanning many months, rather than purely a hospital episode of care. To improve patient outcomes and reduce costs in TKA, greater emphasis shou…
View article: Can TKA outcomes be predicted with computational simulation? Generation of a patient specific planning tool
Can TKA outcomes be predicted with computational simulation? Generation of a patient specific planning tool Open
Computer simulations of knee movement allow Total Knee Arthroplasty (TKA) dynamic outcomes to be studied. This study aims to build a model predicting patient reported outcome from a simulation of post-operative TKA joint dynamics.Landmark …
View article: Preliminary Validation of a Patient Outcome Prediction Tool Relative to Surgeon Predictions of Patient Outcome
Preliminary Validation of a Patient Outcome Prediction Tool Relative to Surgeon Predictions of Patient Outcome Open
Currently, patient selection for Total Knee Arthroplasties (TKA) is surgeon specific. A combination of patient reported symptoms, clinical examination findings, and radiological criteria are combined in an idiosyncratic fashion based on th…
View article: Functional Correctability of the Knee Joint using 3D-to-2D Registration of X-Ray Imaging in Stressed Positions
Functional Correctability of the Knee Joint using 3D-to-2D Registration of X-Ray Imaging in Stressed Positions Open
Correcting the knee joint to accommodate the pre-existing soft tissue structures is a major aim in total knee arthroplasty. 3D-to-2D registration of segmented boney geometry obtained from computer tomography (CT) scans to functionally stre…
View article: Outcome Validation of a Simulation Based Patient Specific TKA Planning Tool
Outcome Validation of a Simulation Based Patient Specific TKA Planning Tool Open
Dynamic knee computer simulations are a promising surgical planning option in TKA, allowing the impact of plan alterations on joint dynamics to be analysed prior to surgery. Previously, the dynamic results of our simulation have been shown…
View article: Predicting Functional Coronal Knee Laxity in Pre-Operative TKA Patients Using Morphological Measurements
Predicting Functional Coronal Knee Laxity in Pre-Operative TKA Patients Using Morphological Measurements Open
Currently, pre-operative analysis of soft-tissue balance is limited to measures of passive laxity rather than active laxity. By including active laxity data, a more comprehensive surgical plan can be delivered, however there are no measure…
View article: Conservative Kinematic Alignment Strategies Report Higher Incidence of Mid-Term Pain Following TKA: a Retrospective Study
Conservative Kinematic Alignment Strategies Report Higher Incidence of Mid-Term Pain Following TKA: a Retrospective Study Open
Kinematic alignment (KA) aims to restore the pre-arthritic geometry of the joint and has been shown to produce similar or improved outcomes compared to mechanical alignment (MA). However, there are significant challenges when attempting to…
View article: Intra-Operative and Anatomic Verification of a TKA Computational Model for Pre-Operative Surgical Planning
Intra-Operative and Anatomic Verification of a TKA Computational Model for Pre-Operative Surgical Planning Open
A promising measure of dynamic outcomes in Total Knee Arthroplasty (TKA) is the simulation of joint dynamics. These simulations are potentially useful for pre-operative planning, but are not yet validated for patient-specific variations in…
View article: Femoral Trochlear Groove Recreation Following TKA Correlates with Improved Patient Reported Outcome
Femoral Trochlear Groove Recreation Following TKA Correlates with Improved Patient Reported Outcome Open
Femoral component recreation of the trochlear groove is a major factor in determining post-operative patello-femoral tracking. Significant variation arises in recreation of the trochlear groove when a standardised implant design is applied…
View article: Accurate determination of post-operative 3D component positioning in total knee arthroplasty: the AURORA protocol
Accurate determination of post-operative 3D component positioning in total knee arthroplasty: the AURORA protocol Open
View article: Patient Specific Alignment, Anatomy, Recovery and Outcome in Total Knee Arthroplasty
Patient Specific Alignment, Anatomy, Recovery and Outcome in Total Knee Arthroplasty Open
Total knee arthroplasty (TKA), despite being an otherwise highly successful medical operation, has a recurrent problem of dissatisfaction and recurrent pain rates in the 15-20% range. A variety of factors contribute to this incidence of di…
View article: Patient Specific Simulated Dynamics Following TKA Correlate With Patient Reported Outcomes
Patient Specific Simulated Dynamics Following TKA Correlate With Patient Reported Outcomes Open
Component alignment cannot fully explain TKA performance with regards to patient reported outcomes and pain. Patient specific variations in musculoskeletal anatomy are one explanation for this. Computational simulations allow for the impac…
View article: Digital Prehabilitation Reduces Length of Stay in Patients Prior to TKA
Digital Prehabilitation Reduces Length of Stay in Patients Prior to TKA Open
Provision of prehabilitation prior to total knee arthroplasty (TKA) through a digital mobile application is a novel concept. Traditionally, prehabilitation is provided face to face by a Physiotherapist. Kwok et al (2015) in a systematic re…
View article: Objective Measure of Activity Level After Total Knee Arthoplasty with The Use of the ‘Fitbit’ Device
Objective Measure of Activity Level After Total Knee Arthoplasty with The Use of the ‘Fitbit’ Device Open
Objectives: The commercial release of non invasive, light weight, low cost accelerometers has great potential to more accurately assess activity level before and after knee arthroplasty from a small light weight wrist strap. These devices …