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Three data bases are available:
1. OrthoLoad is currently built up. It will contain forces, moments, videos and diagrams from all investigated implants and subjects.
2. Hip98 contains the hip joint forces of 4 subjects during selected activities of daily living. Additionally gait data, calculated internal forces and other information are available.
3. The data files in Standard Tests Hip Joint provide standardized forces for testing and analyzing hip implants.
OrthoLoad is a broad data base containing all investigated implants and activities. It is currently built up and will contain information about the loads acting at the following implants: Hip joint, shoulder joint, knee joint, vertebral body replacement, internal spinal fixator.
Many measurements from the hip joint are already available. For the measurements at other implants selected examples can currently be downloaded.
In an activity menu an implant type and the activity of interest can be selected. The downloaded video then shows the movements of the subjects during the selected exercise. Synchronously to the video the forces and moments acting at the implant are shown in form of time diagrams, force vectors and numerical data tables (Video 413kB). Points in time which are of special interest can be analyzed in detail. Additionally a program is available to organize the data files already downloaded on the PC.
Go to OrthoLoad
The data collection HIP98 contains the forces acting in the hip joint during the most common activities of daily living (sample). Measurements were taken in 4 subjects. Additionally to the implant loads and the synchronous videos of the subjects (as in OrthoLoad) this data base provides gait analysis data, calculated muscle forces, EMG signals and numbers for the frequencies of the different activities [Bergmann et al., 2001].
The forces acting at the acetabulum, i. e. the pelvic side of the hip joint, were additionally determined, using the forces acting relative to the femur plus the belonging gait analysis data. From the results of the individuals the loads acting in a 'typical' or representative subject are also provided.
Download: HIP98 for MS Windows 7 (165MB)
Standard Tests Hip Joint
From the hip joint forces and activity numbers of the most frequent activities of daily living standardized and simplified load scenarios were derived. They are aimed at being applied in experimental or analytical tests on the stability of hip implants and their fixation in bone.
The following data files with average and maximum forces are available:
Walking, going up stairs, going down stairs, sitting down, standing up, standing and stumbling.
Most decisive for strength and fixation are the following activities
Average loads: Walking and going up stairs
Maximum loads: Walking, going up stairs and stumbling
All data files can be downloaded in one zip-file. A detailed description of applicable
test conditions was published [Bergmann et al., 2010].
Download: Standard Tests Hip Joint (29 kB)