Engineering Commons^™

Analysis Of Healthy Glenohumeral Arthrokinematics And Anatomic Shoulder Implant Subluxation Using 4dct, Kylie Kiera Paliani

Electronic Thesis and Dissertation Repository

The shoulder is the most mobile joint in the human body, with the glenohumeral joint specifically allowing a wide range of motion and a high incidence of instability due to its ability to translate, as well as rotate in its socket. However, the extent of translation in a healthy glenohumeral joint is not well-established. Additionally, it is unclear if subluxation correction after anatomic total shoulder arthroplasty (TSA) with posterior augmented glenoid (PAG) implants remains consistent throughout active motion. This thesis aimed to evaluate healthy glenohumeral arthrokinematics to benchmark normal joint proximity and translation, and to assess if a TSA with …

Improving Material Mapping In Glenohumeral Finite Element Models: A Multi-Level Evaluation, Nikolas K. Knowles

Electronic Thesis and Dissertation Repository

An improved understanding of glenohumeral bone mechanics can be elucidated using computational models derived from computed tomography data. Although computational tools, such as finite element analysis, provide a powerful quantitative technique to evaluate and answer a variety of biomechanical and clinical questions, glenohumeral finite element models (FEMs) have not kept pace with improvements in modeling techniques or model validation methods seen in other anatomic locations. The present work describes the use of multi-level computational modeling to compare, develop and validate FEMs of the glenohumeral joint.

Common density-modulus relationships within the literature were evaluated using a multi-level comparative testing methodology to …