am Mittwoch, den 21.02.2018
New publication: Gluteal muscle damage leads to higher in vivo hip joint loads 3 months after total hip arthroplasty
PLoS ONE 13(1)
P. Damm, J. Zonneveld, S. Brackertz, F. Streitparth, T. Winkler
The Orthoload database has now become much faster. In addition, the data selection options have become more flexible. For example, it is not only possible to select Hip Joint III data for
Activity: Walking; with Crutches; 4 Points
but also for
Activity: Walking; with Crutches (with all data for ‘4 Points’, ‘3 Points; Swing Through’ and ‘on Contralateral Side;’)
Activity: Walking (with all kinds of walking data for Hip Joint III in the database).
Knowledge of the internal joint loading and movement following total knee replacement is necessary in order to understand implant stability, wear mechanisms, and loading of the surrounding soft tissue structures. In order to achieve a deeper understanding of knee joint biomechanics, the CAMS-Knee project provides synchronous data of the following measures:
TKR loading (instrumented implants, three forces and three moments)
TKR kinematics (moving fluoroscope, 3D reconstruction of tibio-femoral implant kinematics)
Whole body kinematics (marker-based movement analysis)
Ground reaction forces (force plate data)
EMG (lower limb, 16 channel)
Video (patient movement)
Multiple subjects, multiple activities, multiple repetitions
After 16 years of very frequent use of this animated data collection of hip joint forces, an error was detected in the vector diagrams of the contact forces. The x- and y-components had been interchanged. This has now been corrected. We thank Ruchi Chande for her hint to this error!
The paper Bergmann et al.: Standardized loads acting in knee implants. PLoS One. 2014;9(1)
has been identified as one of the ten most frequently cited publications in PlosOne ! Maybe you can use theese data for your own research on the knee joint. Similar data have been published on the hip joint:
Bergmann et al.: Standardized Loads Acting in Hip Implants. PLoS One. 2016;11(5)
New publication about the in vivo hip joint loads and pedal forces during ergometer cycling
Journal of Biomechanics 2017
P. Damm, J. Dymke, A. Bender, G. Duda, G. Bergmann
Comprehensive data samples, including synchronous joint kinetics and whole body kinematics are now available for free download. The loads acting in human joints were measured at the Charité in Berlin directly in patients by using instrumented implants. Additionally to the joint contact forces kinematic and kinetic data were synchronously captured in patients with instrumented knee and hip implants at the motion analysis lab of the Julius Wolff Institute and the Humboldt University of Berlin. For the analysis of various biomechanical issues comprehensive data sets were prepared.
The comprehensive data sets contain the following information:
- joint contact forces and moments
- whole body kinematics (marker trajectories)
- ground reaction forces
Sample data sets are now released for free download which consist of 1 walking trial from one total knee and one total hip replacement subject.
Mediolateral force distribution at the knee joint shifts across activities and is driven by tibiofemoral alignment
In vivo measured joint friction in hip implants during walking after a short rest
PLoS One, published: March 28, 2017
Damm P., Bender A., Duda G., Bergmann G.