Enhancement of Surgical Planning through Patient-Specific Biomechanical Modeling and Simulation

Beitrag bei einer Tagung
(Abstract zum Poster)


Details zur Publikation

Autor(en): Sesselmann S, Miehling J, Wartzack S, Forst R
Jahr der Veröffentlichung: 2016
Sprache: Englisch


Abstract


Current surgical planning software for total endoprostheses of hip and knee joints focuses mainly on geometric arrangements in 2D or in some cases even in 3D. Since this standard process relies highly on the experience of the orthopedic surgeon, poorly adjusted planning parameters may impede the expected mobility outcome. Therefore, we propose the inclusion of a methodology for the individualization of generic musculoskeletal models based on a limited number of input parameters into the planning process. These parameters can ideally directly be taken from the standard tests in advance of the joint replacement to allow for a highly usable planning tool. For example the bones and rotational axes are adjusted using landmark distances measured in the compulsory X-ray images, joint mobility can be localized using the neutral zero method and muscular dysfunctions can be semiquantified by measuring the degree of force according to the BMRC. Also irregularities or deformities can be considered. The resulting model is eventually used for patient-specific simulations to derive useful information on how the total endoprosthesis has to be geometrically set up to yield the best biomechanical result. Sensitivity analysis is to be performed as the orthopedist can hardly reproduce the specified values exactly. He rather needs intervals in which the postoperative outcome is robust to variations in the geometric parameters to be able to choose the best parameter configuration. This analysis can also predict which parameters have to be precisely met and which play a subordinate role.



FAU-Autoren / FAU-Herausgeber

Forst, Raimund Prof. Dr. med.
Lehrstuhl für Orthopädie mit Orthopädischer Chirurgie
Miehling, Jörg
Lehrstuhl für Konstruktionstechnik
Sesselmann, Stefan Dr.
Lehrstuhl für Orthopädie mit Orthopädischer Chirurgie
Wartzack, Sandro Prof. Dr.-Ing.
Lehrstuhl für Konstruktionstechnik


Zitierweisen

APA:
Sesselmann, S., Miehling, J., Wartzack, S., & Forst, R. (2016, September). Enhancement of Surgical Planning through Patient-Specific Biomechanical Modeling and Simulation. Poster presentation at 37th SICOT Orthopaedic World Congress, Rom, IT.

MLA:
Sesselmann, Stefan, et al. "Enhancement of Surgical Planning through Patient-Specific Biomechanical Modeling and Simulation." Presented at 37th SICOT Orthopaedic World Congress, Rom 2016.

BibTeX: 

Zuletzt aktualisiert 2018-10-08 um 08:26