Datasamples – Impact of antagonistic muscle co-contraction on in vivo knee contact forces

Trepczynski A., Kutzner I., Schwachmeyer V., Heller M. O., Pfitzner T., Duda G.N.
Impact of antagonistic muscle co-contraction on in vivo knee contact forces
Journal of NeuroEngineering and Rehabilitation, 2018

Selected data samples of the whole 3D body kinematic and synchronously in vivo measured knee joint loads are available at the OrthoLoad Database.

The data sets contain the following information:

  • in vivo measured knee joint loads
  • whole 3D body kinematics (marker trajectories) + ground reaction forces

To see example videos and to download the data from the OrthoLoad Database use the following links:

Activity Trial Number in vivo 3D body kinematic
Level Walking K8L_250311_1_19 Knee Joint mov.csv
Stairs Up K8L_250311_1_64 Knee Joint mov.csv
Stairs Down K8L_250311_1_65 Knee Joint mov.csv

 

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Hip joint force and motion capture data

Data samples of whole 3D body kinematik and synchroneously in vivo measured hip joint loads are now available at the database, for ‘Level Walking’ and ‘One Legged Stance’. The data samples (table) were used in the new publication “Patient-specific musculoskeletal modeling of the hip joint for preoperative planning of total hip arthroplasty: A validation study based on in vivo measurements“.

The data sets contain the following information:

  • in vivo measured hip joint loads
  • whole body kinematics (marker trajectories)
  • ground reaction forces

To select the data go to: Database

  1. Implant: “Hip Joint III
  2. Activity: “Gaitanalysis; Standing; One Legged Stance; Ipsilateralor “Gaitanalysis; Walking; Level Walking
  3. See “Additional Data” for the motion capture files (*_mov)

Alternatively use the “file search” window at the Database (top left side) by using the given file names (table).

Table: File names of availible data sets

Subject One-leg stance Level walking
H1L H1L_060511_1_24 H1L_060511_1_47
H2R H2R_150811_1_24 H2R_150811_2_98
H3L H3L_141111_2_75 H3L_141111_1_28
H4L H4L_270112_1_36 H4L_270112_2_80
H5L H5L_050412_1_37 H5L_050412_1_75
H6R H6R_201112_1_36 H6R_201112_2_107
H7R H7R_191112_1_38 H7R_191112_1_47
H8L H8L_240413_1_36 H8L_240413_1_48
H9L H9L_301013_1_29 H9L_301013_1_62
H10R H10R_300114_1_32 H10R_300114_1_82

 

 

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OrthoLoadLab

In 2016 the project OrthoLoadLab was supported by  the European Regional Development Fund (EFRE) represented by Berlin – Senate Department for Education, Youth and Science of Berlin. It involves the establishment and operation of a globally unique, functional analysis service in the field of movement research. Basis was the joint proposal of the Julius Wolff Institute, the Center for Musculoskeletal Surgery of the Charité and the Department of Exercise and Movement Sciences at the Humboldt University in Berlin. The support allow the construction of the OrthoLoadLab, a unique laboratory that combines classical movement analysis with a bi-planar x-ray fluoroscopy (Dyn2Scan) in a virtual environment. This results in new approaches and analysis options in biomechanical research and application.

Aim of the OrthoLoadLab is the direct translation of science and research into industrial development and clinical application. It offers their partners a globally unique combination of in-depth scientific know-how on in vivo-acting loads and functions combined with the outcome data from the clinical-scientific environment. Fluoroscopic images and motion analysis are used to quantify joint kinematics. In the clinical environment, it is checked to what extent the desired functionality of the implant is actually achieved.

Furthermore, it gives their partners access to the unique, scientifically-based OrthoLoad data collection that they can use as a basis for product development, review and approval. The OrthoLoadLab ensures a direct exchange between product developers, scientists and clinical staff. In this way, current questions about implant safety can be answered taking into account the increased patient and approval requirements for future implant developments. In addition, the functional outcome of innovative implants can be analysed and specific risk factors recorded. In direct combination with the already established “OrthoLoad Club” the OrthoLoadLab also offers a safety forum for manufacturers, developers and users for the benefit assessment of implants. Under realistic physiological conditions, the performance of established implant systems or new developments can be optimized. As a result, companies are able to significantly reduce their development time for new products.

Partners:

MEDIZINTECHNIK St. Egidien GmbH
Zuse Institute Berlin

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CAMS-Knee project online

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

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Comprehensive data samples

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.

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