A5048504239- Diabetic Foot Ulcer Assessment and Management
- Shoulder Injury and Treatment
- Orthopedic Surgery and Rehabilitation
- Hip disorders and treatments
- Orthopedic Infections and Treatments
- Advanced X-ray and CT Imaging
- Radiation Dose and Imaging
- Wound Healing and Treatments
- Sports injuries and prevention
- Bone fractures and treatments
- Orthopaedic implants and arthroplasty
- Foot and Ankle Surgery
- Lower Extremity Biomechanics and Pathologies
- Musculoskeletal synovial abnormalities and treatments
- Radiology practices and education
- Bone and Joint Diseases
- Peripheral Nerve Disorders
- Spine and Intervertebral Disc Pathology
- Tendon Structure and Treatment
- Sarcoma Diagnosis and Treatment
- Knee injuries and reconstruction techniques
- Pregnancy-related medical research
- Elbow and Forearm Trauma Treatment
- Cardiac Valve Diseases and Treatments
- Cardiac Imaging and Diagnostics
Universitätsklinik Balgrist
2016-2025
University of Zurich
2016-2025
Schulthess-Klinik
2024
University Hospital of Bern
2009-2013
University of Bern
2012
To evaluate the reliability of ultrasonographic (US) elastography supraspinatus (SSP) muscle, define normal shear-wave velocity (SWV) values, and correlate findings with tendon integrity muscle quality.The study was approved by local ethics committee, written informed consent obtained from all patients. SSP SWV (in meters per second) prospectively assessed twice in 22 asymptomatic volunteers (mean age ± standard deviation, 53.8 years 15.3; 11 women men) two independent examiners using...
Intra-articular injections are widely used for conservative treatment of knee osteoarthritis (OA). However, rigorous data lacking regarding the comparative therapeutic effectiveness these injections.The aim this study was to compare clinical outcomes after intra-articular glucocorticoid, hyaluronic acid, platelet-rich plasma (PRP), or placebo in patients with mild moderate OA knee.In a double-blinded, placebo-controlled, single-center trial, we randomly assigned knees early- middle-stage...
The purpose of this study was to evaluate the interchangeability and reliability femoral tibial torsion measurements in children using 3D models based on biplanar radiography compared with CT measurements.Femoral were measured 50 patients (mean age, 10.9 years; range, 4.7-14.8 years) low-dose by two independent readers. Measurements transverse images readers served as reference standard. Intermethod interreader agreement calculated descriptive statistics, intraclass correlation coefficient...
Delayed-Onset Muscle Soreness: Temporal Assessment With Quantitative MRI and Shear-Wave Ultrasound ElastographyChristoph A. Agten1,2, Florian M. Buck1,2, Linda Dyer3, Martin Flück2,4, Christian W. Pfirrmann1,2 Andrea B. Rosskopf1,2Audio Available | Share
The aim of this study was to assess feasibility and accuracy augmented reality-guided lumbar facet joint injections.A spine phantom completely embedded in hardened opaque agar with 3 ring markers built. A 3-dimensional model the uploaded an reality headset (Microsoft HoloLens). Two radiologists independently performed 20 computed tomography (CT)-guided injections each: for each injection, hologram manually aligned container using markers. targeted virtual tried place needle tip holographic...
Background Intra-articular injections are routinely used for conservative treatment of knee osteoarthritis (OA). The detailed comparative therapeutic effects these on cartilage tissue still unclear. Objective aim this study was to detect and compare changes after intra-articular injection glucocorticoid, hyaluronic acid, or platelet-rich plasma (PRP) placebo using quantitative (T2 T2* mapping) morphological magnetic resonance imaging parameters in patients with mild moderate osteoarthritis....
Few studies have addressed the appropriate duration of antibiotic therapy for diabetic foot infections (DFI) with or without amputation. We will perform two randomized clinical trials (RCTs) to reduce use and associated adverse events in DFI.We hypothesize that shorter durations postdebridement systemic are noninferior (10% margin, 80% power, alpha 5%) existing (long) we unblinded RCTs a total 400 DFI episodes (randomization 1:1) from 2019 2022. The primary outcome both is remission...
Abstract Background Ultrasound (US) images are currently displayed on monitors, and their understanding needs good orientation skills. Direct overlay of US onto the according anatomy is possible with augmented reality (AR) technologies. Our purpose was to explore performance US-guided needle placement without AR in situ viewing. Methods Three untrained operators two experienced radiologists performed 200 punctures: 100 US. The punctures were different phantoms, a leg phantom soft tissue...
In diabetic foot syndrome imaging, dual-energy CT (DECT)–derived fat maps in addition to blended DECT images and bone marrow edema were accurate the diagnosis of pedal osteomyelitis.
It is not exactly known whether guided growth or definitive epiphysiodesis techniques are superior in treating limb length discrepancy (LLD). The purpose of the present study was therefore to find out if associated with more powerful LLD correction than tension band plate epiphysiodesis. Pediatric patients treated either plating as a technique (temporary epiphysiodesis) percutaneous drilling (definitive around knee and minimum follow-up 12 months were included this retrospective study....
Purpose To determine the diagnostic performance of MRI for helping to predict posterolateral knee instability in patients with acute anterior cruciate ligament (ACL) tear. Materials and Methods This retrospective cohort study was performed a consecutive series 162 (mean age, 32.8 years ± 10.0 [standard deviation]; 95 men [mean 31.0 9.6] 67 women 35.4 10.0]) who underwent ACL reconstruction (n = 19) or without 143) concomitant corner (PLC) between June 2014 February 2017. MR images were...
To assess alternative measurements to the alpha angle as a tool for distinguishing between symptomatic and asymptomatic cam-type deformities of femoral head.Magnetic resonance imaging (MRI) examinations 106 individuals (age 20-50 years) from previous study on were analyzed, including 53 femoroacetabular impingement (FAI) patients with age-/sex-matched volunteers. On radially reformatted MR images two independent radiologists assessed offset distance (FD) around head circumference. Intraclass...
The aim of this study was to quantitatively assess changes in collagen structure using MR T1- and T2*-mapping a novel controlled ex vivo tendon model setup.Twenty-four cadaveric bovine flexor tendons underwent MRI at 3 T before after chemical modifications, representing mechanical degeneration augmentation. Collagen degradation (COL), augmenting fiber cross-linking (CXL), control (phosphate-buffered saline [PBS]) were examined experimental groups, histopathology as standard reference....
Abstract Purpose To elaborate an optimized scheme for the Dejour classification of trochlear dysplasia based on axial and sagittal MR images to evaluate its intra- inter-reader reliability. Material methods Over a period 20 months patients with knee MRI diagnosis were retrospectively included. Exclusion criteria incomplete examination, qualitatively non-diagnostic post surgery, missing informed consent research purposes. Three independent evaluations performed by two radiologists: first...
The purpose of this article is to evaluate the quality reports knee MRI examinations in form, content, and diagnosis assess effect three different improvement measures.Reports 500 (first round, or baseline) were reviewed retrospectively by five musculoskeletal radiologists. Fifteen criteria assessed for formal content-related reports. Diagnostic discrepancies categorized using a 5-point scale, as follows: I, no deviation; II, undetected finding, clinically irrelevant; III, wrong...
Abstract Objective To develop a new magnetic resonance imaging(MRI) scoring system for evaluation of active Charcot foot and to correlate the score with duration off-loading treatment ≥ 90 days. Methods An outpatient clinic database was searched retrospectively MRIs patients who completed treatment. Images were assessed by two radiologists (readers 1 2) an orthopedic surgeon (reader 3). Sanders/Frykberg regions I–V evaluated soft tissue edema, bone marrow erosions, subchondral cysts, joint...
Traumatic and non-traumatic tendon lesions are common at the wrist hand. For diagnosis, therapy management, long-term prognosis of lesions, a detailed understanding complex anatomy knowledge typical injury patterns is crucial for both radiologists clinicians. Improvements in high-resolution ultrasound producing high quality images superficial tendinous peritendinous structures. Thus, valuable first-choice tool visualizing traumatic, inflammatory, degenerative conditions extensor flexor...