TY  - CHAP
A1  - Abel, Alexander
A1  - Pérez-Viana, Daniel
A1  - Ciritsis, Bernard
A1  - Staat, Manfred
ED  - Erni, Daniel
ED  - Fischerauer, Alice
ED  - Himmel, Jörg
ED  - Seeger, Thomas
ED  - Thelen, Klaus
T1  - Prevention of femur neck fractures through femoroplasty
T2  - 2nd YRA MedTech Symposium 2017 : June 8th - 9th / 2017 / Hochschule Ruhr-West
Y1  - 2017
SN  - 978-3-9814801-9-1
U6  - https://doi.org/10.17185/duepublico/43984
N1  - A young researchers track of the 7th IEEE Workshop & SENSORICA 2017
SP  - 114
EP  - 115
PB  - Universität Duisburg-Essen
CY  - Duisburg
ER  - 
TY  - JOUR
A1  - Horbach, Andreas
A1  - Staat, Manfred
A1  - Perez-Viana, Daniel
A1  - Simmen, Hans-Peter
A1  - Neuhaus, Valentin
A1  - Pape, Hans-Christoph
A1  - Prescher, Andreas
A1  - Ciritsis, Bernhard
T1  - Biomechanical in vitro examination of a standardized low-volume tubular femoroplasty
JF  - Clinical Biomechanics
N2  - Background
Osteoporosis is associated with the risk of fractures near the hip. Age and comorbidities increase the perioperative risk. Due to the ageing population, fracture of the proximal femur also proves to be a socio-economic problem. Preventive surgical measures have hardly been used so far.

Methods
10 pairs of human femora from fresh cadavers were divided into control and low-volume femoroplasty groups and subjected to a Hayes fall-loading fracture test. The results of the respective localization and classification of the fracture site, the Singh index determined by computed tomography (CT) examination and the parameters in terms of fracture force, work to fracture and stiffness were evaluated statistically and with the finite element method. In addition, a finite element parametric study with different position angles and variants of the tubular geometry of the femoroplasty was performed.

Findings
Compared to the control group, the work to fracture could be increased by 33.2%. The fracture force increased by 19.9%. The used technique and instrumentation proved to be standardized and reproducible with an average poly(methyl methacrylate) volume of 10.5 ml. The parametric study showed the best results for the selected angle and geometry.

Interpretation
The cadaver studies demonstrated the biomechanical efficacy of the low-volume tubular femoroplasty. The numerical calculations confirmed the optimal choice of positioning as well as the inner and outer diameter of the tube in this setting. The standardized minimally invasive technique with the instruments developed for it could be used in further comparative studies to confirm the measured biomechanical results.
Y1  - 2020
U6  - https://doi.org/10.1016/j.clinbiomech.2020.105104
VL  - 80
IS  - Art. 105104
PB  - Elsevier
CY  - Amsterdam
ER  -