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

This site contains mechanical characterization data of human knee cartilage with each test conducted three times to assess experimental repeatability. The study was conducted on a cadaver left knee from a 25 years old female donor (Caucasian, body mass index: 22.8, height: 1.73 m, weight: 68 kg, specimen ID: oks003). Samples were taken from 6 locations on the knee (medial and lateral femoral condyles, medial and lateral tibial plateaus, patella and patellar groove). One compression (full thickness, 5 mm diameter) and one tension (1 mm wide, 5 mm long, closer to superficial region) sample was taken from each location. Each compression sample was tested under confined and unconfined compression and each tensile sample was tested under uniaxial tension. The testing protocol was, 1) find reference location using 10g load, 2) ramp to 15 % strain at 20%/s, unload at the same rate, 1000 preconditioning cycles between 10-15% strain at 2Hz, ramp to 15 % strain at 20%/s, unload at the same rate, 3) find reference location using 10g load, 4) three step stress-relaxation with 5-10-15% strain at 20%/s strain rate. A total of 54 tests were conducted. There is also thickness measurement data obtained using an optical thickness measurement system (OTMS).

The data were collected under the project titled "Open Knee(s): Virtual Biomechanical Representations of the Knee Joint" conducted by Cleveland Clinic Foundation and funded by the National Institute of General Medical Sciences, National Institutes of Health under Grant R01GM104139 (Principal Investigator: Ahmet Erdemir). The goal of the project is to build specimen-specific virtual representations of human knees using specimen geometry, material properties and experimental joint kinematics-kientics responses.

The data are made available under a Creative Commons Attribution 4.0 International License. (see license.txt for more information).