5 Works

Models and Simulations for calibrated lumped models for the paper title \"Template Models for Simulation of Surface Manipulation of Musculoskeletal Extremities\"

Sean Doherty, Ahmet Erdemir, Tammy Owings & Ben Landis
Capturing the surface mechanics of musculoskeletal extremities would enhance the realism of life-like mechanics imposed on the limbs within surgical simulations haptics. Other fields that rely on surface manipulation, such as garment or prosthetic design, would also benefit from characterization of tissue surface mechanics. Eight homogeneous tissue models were developed for the upper and lower legs and arms of two donors. Ultrasound indentation data was used to drive an inverse finite element analysis for individualized...

Reproducibility Paper Data: Data and analysis package for the draft manuscript that assesses reporting and reproducibility across a cohort of literature-based knee modeling studies. The package contains the raw data, which are the reviews performed by the KneeHub team members, and the corresponding statistical analysis.

Jason Halloran, Neda Abdollahi Nohouji, Mhd Ammar Hafez, Thor Besier, Snehal Chokhandre, Shady Elmasry, Donald Hume, Carl Imhauser, Nynke Rooks, Marco Schneider, Ariel Schwartz, Kevin Shelburne, William Zaylor & Ahmet Erdemir
Reproducible research serves as a pillar of the scientific method and is a foundation for scientific advancement. However, estimates for irreproducibility of preclinical science range from 75% to 90%. The importance of reproducible science has not been assessed in the context of mechanics-based modeling of human joints such as the knee, despite this being an area that has seen dramatic growth. Framed in the context of five experienced teams currently documenting knee modeling procedures, the...

OKS models

Snehal Chokhandre & Ahmet Erdemir
There is a growing interest in the use of virtual representations of the knee for musculoskeletal research and clinical decision making, and to generate digital evidence for design and regulation of implants. Accessibility to previously developed models and related digital assets can dramatically reduce barriers to entry to conduct simulation-based studies of the knee joint and therefore help accelerate scientific discovery and clinical innovations. Development of models for finite element analysis is a demanding process...

Human Knee Cartilage Histopathology Assessment

Venkata P Mantripragada, Ronald Midura, Ahmet Erdemir & George Muschler
90 patients with varus knees scheduled for total knee arthroplasty were recruited after getting their informed consent. Inclusion criteria required patients with a diagnosis of idiopathic OA (primarily medial compartment and/or patellofemoral disease) exhibiting a relatively preserved lateral compartment (JSW: 2–10 mm, median: 6 mm in the lateral compartment) based on preoperative weight-bearing anterior-posterior (AP) radio- graphs taken in full extension and 30° of flexion. During TKA, the Lateral Femoral Condyle (LFC) was collected and...

Open Knee(s): Virtual Biomechanical Representations of the Knee Joint

Ahmet Erdemir & Snehal Chokhandre
This site contains magnetic resonance imaging (MRI) and joint mechanical characterization data for 8 human cadaveric knees that included male and female, young and elderly, and healthy and osteoarthritic donors. Imaging was performed on a 3T magnet and included general purpose imaging (3D T1-weighted without fat suppression, isotropic, 0.5 mm resolution); cartilage imaging (3D T1-weighted with fat suppression, 0.35 mm sagittal plane resolution, 0.7 mm out of plane resolution); and connective tissue imaging (proton density,...

Registration Year

  • 2022
  • 2021
  • 2020

Resource Types

  • Dataset


  • Cleveland Clinic
  • Cleveland State University
  • University of Auckland
  • Hospital for Special Surgery
  • University of Denver
  • Washington State University