Patrick O. Zingg
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View article: The effect of experimentally-induced gluteal muscle paralysis on joint kinematics, reaction forces and dynamic balance performance during lunges
The effect of experimentally-induced gluteal muscle paralysis on joint kinematics, reaction forces and dynamic balance performance during lunges Open
Despite altered mechanics and reduced joint loading following selective gluteal paralysis, participants were able to complete the lunge task, even if the lunge position was higher, and compensatory pelvic flexion and rotation towards the a…
View article: Graft incorporation and stem subsidence in femoral impaction bone grafting for revision hip arthroplasty: a systematic review and meta–analysis of 2514 hips
Graft incorporation and stem subsidence in femoral impaction bone grafting for revision hip arthroplasty: a systematic review and meta–analysis of 2514 hips Open
View article: TeachApproach: An AR Learning Platform for Intraoperative Orientation in Anterior Minimally Invasive Hip Surgery--a Feasibility Study
TeachApproach: An AR Learning Platform for Intraoperative Orientation in Anterior Minimally Invasive Hip Surgery--a Feasibility Study Open
Background: This study aimed to evaluate the potential of an Augmented Reality (AR) learning application to support the training of medical residents in the anterior minimally invasive approach (AMIS), with a focus on surgical performance,…
View article: Cross-sectional fat fraction analysis of the gluteus medius and minimus muscle in asymptomatic vs. symptomatic hips using 2-point Dixon MRI
Cross-sectional fat fraction analysis of the gluteus medius and minimus muscle in asymptomatic vs. symptomatic hips using 2-point Dixon MRI Open
View article: Survivorship and Patient-Reported Outcomes in Femoral Impaction Bone Grafting for Revision Hip Arthroplasty: A Systematic Review and Meta-Analysis of 4,102 Hips
Survivorship and Patient-Reported Outcomes in Femoral Impaction Bone Grafting for Revision Hip Arthroplasty: A Systematic Review and Meta-Analysis of 4,102 Hips Open
Hip revision arthroplasty with femoral IBG demonstrates high long-term (10-year) survivorship rates (95%, 92 to 97%, I2 = 79%) and significant improvements in PROMs, specifically the Harris Hip Score (I2 = 92%), espec…
View article: Association of femoral retroversion and out-toeing gait with development of hip osteoarthritis and treatment: a systematic review
Association of femoral retroversion and out-toeing gait with development of hip osteoarthritis and treatment: a systematic review Open
Background and purpose: Femoral retroversion (FR) is known to be a predisposing factor for femoro-acetabular impingement and is hypothesized to constitute a risk factor for early osteoarthritis of the hip. We performed a systematic review …
View article: Change of force and lever arm of the hip abductors after subtrochanteric de‐/rotational osteotomy
Change of force and lever arm of the hip abductors after subtrochanteric de‐/rotational osteotomy Open
Purpose Previous studies have shown that rotational osteotomy of the femur reliably corrects anatomical torsion but may result in a ±1 cm antero‐posterior shift of the greater trochanter (GT) per 10° of torsional correction. It is unclear …
View article: The effect of experimentally induced gluteal muscle weakness on joint kinematics, reaction forces, and dynamic balance performance during stair climbing
The effect of experimentally induced gluteal muscle weakness on joint kinematics, reaction forces, and dynamic balance performance during stair climbing Open
A weakness in the hip abductors severely affected stair climbing performance. Those who managed to complete the task demonstrated abnormal kinematics, reduced joint reaction forces, and poorer dynamic balance.
View article: Evaluating the Corrected Femoroepiphyseal Acetabular Roof Index in Patients With Borderline Dysplasia Undergoing Periacetabular Osteotomy or Hip Arthroscopy
Evaluating the Corrected Femoroepiphyseal Acetabular Roof Index in Patients With Borderline Dysplasia Undergoing Periacetabular Osteotomy or Hip Arthroscopy Open
Background: Identifying hip instability in symptomatic patients with borderline dysplasia of the hip (BDH) is of paramount importance, as it can influence both surgical decision-making and surgical outcomes. The femoroepiphyseal acetabular…
View article: The Effect of Experimentally-Induced Gluteal Muscle Paralysis on Joint Kinematics, Reaction Forces and Dynamic Balance Performance During Lunges
The Effect of Experimentally-Induced Gluteal Muscle Paralysis on Joint Kinematics, Reaction Forces and Dynamic Balance Performance During Lunges Open
View article: A novel augmented reality-based simulator for enhancing orthopedic surgical training
A novel augmented reality-based simulator for enhancing orthopedic surgical training Open
This work shows the potential of AR-based simulators in introducing a novel, data-driven approach to open surgery training in orthopedics, enabling surgeons to individually assess and improve their progress.
View article: How useful are indirect radiographic measurements of hip instability in borderline hip dysplasia? An MRI-based comparison to a healthy cohort
How useful are indirect radiographic measurements of hip instability in borderline hip dysplasia? An MRI-based comparison to a healthy cohort Open
View article: Perioperative Intravenous Dexamethasone Significantly Reduces Postoperative Opioid Requirement and Nausea After Unilateral Elective Hip Arthroscopy: A Randomized Double-blinded Placebo-controlled Trial
Perioperative Intravenous Dexamethasone Significantly Reduces Postoperative Opioid Requirement and Nausea After Unilateral Elective Hip Arthroscopy: A Randomized Double-blinded Placebo-controlled Trial Open
Background: Previous studies have shown that dexamethasone has a positive effect on postoperative pain control, opioid consumption, nausea, and vomiting and length of hospital stay after arthroplasty surgery. Purpose/Hypothesis: The purpos…
View article: High femoral offset as a risk factor for aseptic femoral component loosening in cementless primary total hip arthroplasty
High femoral offset as a risk factor for aseptic femoral component loosening in cementless primary total hip arthroplasty Open
View article: Influence of offset on osseointegration in cementless total hip arthroplasty: A finite element study
Influence of offset on osseointegration in cementless total hip arthroplasty: A finite element study Open
Early aseptic loosening is caused by deficient osteointegration of the femoral stem due to increased micromotions and represents a common mode of failure in uncemented total hip arthroplasty (THA). This study hypothesized that a higher fem…
View article: A Novel Augmented Reality-Based Simulator for Enhancing Orthopedic Surgical Training
A Novel Augmented Reality-Based Simulator for Enhancing Orthopedic Surgical Training Open
View article: Quantifying cup overhang after total hip arthroplasty: standardized measurement using reformatted computed tomography and association of overhang distance with iliopsoas impingement
Quantifying cup overhang after total hip arthroplasty: standardized measurement using reformatted computed tomography and association of overhang distance with iliopsoas impingement Open
Objectives Currently, there is no standardized measurement method for evaluating cup overhang (CO) in patients undergoing total hip arthroplasty (THA). We propose a novel, standardized method of measuring overhang distance in patients foll…
View article: Augmented reality-guided pelvic osteotomy of Ganz: feasibility in cadavers
Augmented reality-guided pelvic osteotomy of Ganz: feasibility in cadavers Open
View article: A CT based 3D Algorithm for Diagnosis of DDH and Quantification of Surgical Correction
A CT based 3D Algorithm for Diagnosis of DDH and Quantification of Surgical Correction Open
Introduction: Conventional radiographs are not doing justice to the complexity of 3D hip pathologies.Some methods based on 3D technology did not find their way to clinical practice.The goal of this study was to develop a 3D measurement met…
View article: Gluteus maximus tendon transfer as a salvage option for painful chronic hip abductor insufficiency: clinical and MRI results with a minimum follow-up of 24 months
Gluteus maximus tendon transfer as a salvage option for painful chronic hip abductor insufficiency: clinical and MRI results with a minimum follow-up of 24 months Open
Introduction: Chronic hip abductor insufficiency is a rare debilitating condition. In cases refractory to conservative treatment and not amenable to direct repair an augmentation becomes necessary. The preferred salvage method at our insti…
View article: Automatic 3D Postoperative Evaluation of Complex Orthopaedic Interventions
Automatic 3D Postoperative Evaluation of Complex Orthopaedic Interventions Open
In clinical practice, image-based postoperative evaluation is still performed without state-of-the-art computer methods, as these are not sufficiently automated. In this study we propose a fully automatic 3D postoperative outcome quantific…
View article: Combined Anteversion Threshold to Avoid Anterior Dislocation in Primary Total Hip Arthroplasty Performed Through the Direct Anterior Approach
Combined Anteversion Threshold to Avoid Anterior Dislocation in Primary Total Hip Arthroplasty Performed Through the Direct Anterior Approach Open
View article: The effect of experimentally induced gluteal muscle weakness on joint kinematics, reaction forces, and dynamic balance performance during deep bilateral squats
The effect of experimentally induced gluteal muscle weakness on joint kinematics, reaction forces, and dynamic balance performance during deep bilateral squats Open
Squatting is a common daily activity and fundamental exercise in resistance training and closed kinetic chain programs. The aim of this study was to investigate the effects of an experimentally induced weakness of the gluteal muscles on jo…
View article: Hip arthroscopy versus total hip arthroplasty—A study on patients with obesity above 40 years of age
Hip arthroscopy versus total hip arthroplasty—A study on patients with obesity above 40 years of age Open
Summary Patients older than 40 years with a body‐mass‐index (BMI) >30 kg/m 2 , a femoroacetabular‐impingement (FAI) and little cartilage damage are a challenge for hip surgeons. Hip‐arthroscopy (HAS) or conservative therapy until a total h…
View article: A novel method for evaluating combined component anteversion in total hip arthroplasty on cross-table lateral hip radiographs
A novel method for evaluating combined component anteversion in total hip arthroplasty on cross-table lateral hip radiographs Open
View article: Three-dimensional analysis of functional femoral antetorsion and the position of the greater trochanter in high-grade patellofemoral dysplastic knees
Three-dimensional analysis of functional femoral antetorsion and the position of the greater trochanter in high-grade patellofemoral dysplastic knees Open
View article: Total hip arthroplasty through the direct anterior approach for sequelae of Legg–Calvé–Perthes disease
Total hip arthroplasty through the direct anterior approach for sequelae of Legg–Calvé–Perthes disease Open
View article: Study protocol: short against long antibiotic therapy for infected orthopedic sites — the randomized-controlled SALATIO trials
Study protocol: short against long antibiotic therapy for infected orthopedic sites — the randomized-controlled SALATIO trials Open
View article: Bioacoustic evidence for a continuous summer presence of the greater noctule bat, Nyctalus lasiopterus, in the Italian Alps
Bioacoustic evidence for a continuous summer presence of the greater noctule bat, Nyctalus lasiopterus, in the Italian Alps Open
The greater noctule bat, Nyctalus lasiopterus (Schreber, 1780), is one of the rarest bat species in Europe. Data on its distribution in the central and western parts of the continent are largely lacking. For the first time, N. lasiopterus …
View article: Can pre-operative intraarticular injection predict pain relief after total hip arthroplasty?
Can pre-operative intraarticular injection predict pain relief after total hip arthroplasty? Open
Background To study if pain relief after injection and arthroplasty correlate. Methods A retrospective cohort study included consecutive patients ( n = 88; median age 64 (interquartile range (IQR) 22) years, 49 (56%) females) that received…