F
Friedmar Graichen
Researcher at Charité
Publications - 45
Citations - 6944
Friedmar Graichen is an academic researcher from Charité. The author has contributed to research in topics: Contact force & Weight-bearing. The author has an hindex of 28, co-authored 45 publications receiving 6262 citations. Previous affiliations of Friedmar Graichen include Free University of Berlin.
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Journal ArticleDOI
Hip contact forces and gait patterns from routine activities.
Georg Bergmann,Georg Deuretzbacher,Markus O. Heller,Friedmar Graichen,Antonius Rohlmann,J Strauss,Georg N. Duda +6 more
TL;DR: The paper focuses on the loading of the femoral implant component but complete data are additionally stored on an associated compact disc that contains complete gait and hip contact force data as well as calculated muscle activities during walking and stair climbing and the frequencies of daily activities observed in hip patients.
Journal ArticleDOI
Hip joint loading during walking and running, measured in two patients
TL;DR: In one hip in the first patient and in the second patient the direction of large forces approximated the average anteversion of the natural femur, so the joint loading was observed over the first 30 and 18 months, respectively, following implantation.
Journal ArticleDOI
Loading of the knee joint during activities of daily living measured in vivo in five subjects.
Ines Kutzner,B. Heinlein,B. Heinlein,Friedmar Graichen,Alwina Bender,Antonius Rohlmann,Andreas M. Halder,Alexander Beier,Georg Bergmann +8 more
TL;DR: In general, resultant contact forces during dynamic activities were lower than the ones predicted by many mathematical models, but lay in a similar range as measured in vivo by others.
Journal ArticleDOI
Realistic loads for testing hip implants
Georg Bergmann,Friedmar Graichen,Antonius Rohlmann,Alwina Bender,B. Heinlein,Georg N. Duda,Markus O. Heller,Michael M. Morlock +7 more
TL;DR: Real load conditions for hip implants are defined, based on in vivo contact force measurements, and it is shown that at least for heavyweight and very active subjects, the real load conditions are more critical than those defined by the ISO standards for fatigue tests.
Journal ArticleDOI
In vivo glenohumeral contact forces--measurements in the first patient 7 months postoperatively.
TL;DR: These first worldwide in vivo measurements of glenohumeral contact forces are being continued in more patients and for longer postoperative times to measure six components of joint contact forces and moments.