Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


Dissertation_08_21_2015_Final.pdf (4.35 MB)

ETD Abstract Container

Abstract Header

The Effect of Combined Bony Defects on the Anterior Stability of the Glenohumeral Joint and Implications for Surgical Repair

Walia, Piyush
http://orcid.org/0000-0002-4807-8363
http://rave.ohiolink.edu/etdc/view?acc_num=csu1440173026

Abstract Details

2015, Doctor of Engineering, Cleveland State University, Washkewicz College of Engineering.
The combined defects of the glenoid and humeral head defects are often associated with recurrent anterior instability. Past studies have only investigated the effects of isolated humeral head or glenoid defects. A cadaveric model was developed to investigate the effect of combined defects. Moreover, two different finite element models were developed to validate against the experimental data. It was hypothesized that combination of smaller sizes of the two defects would reduce the glenohumeral joint’s stability. Furthermore, it was hypothesized that the instability due to humeral head defect will be dependent on the arm position but this won’t be the case for the glenoid defect. Also, it was believed that both specimen-specific and population-based models will validate against the experimental data. Different sets of simulation were run with both isolated and combined defects to analyze the reaction forces and calculate distance to dislocation. The experiments were performed with displacement control under a 50N compressive load. The results from the study predicted a statistical model that explained the direct correlation between the anterior stability of glenohumeral joint and the size of the defect. It was found that with the increase in size of the defect, the distance to dislocation decreased. It was determined that a combination of 10% glenoid defect with a 19% humeral head defect resulted in lower stability (p<0.05) than that of an isolated 20% glenoid defect. Results from finite element analysis showed that both specimen-specific and population-based models were similar to cadaveric model.
Stephen Fening, Ph.D. (Committee Chair)
Antonie van den Bogert, Ph.D. (Advisor)
Anthony Miniaci, M.D., F.R.C.S.C. (Committee Member)
Morgan Jones, M.D., M.P.H (Committee Member)
Ahmet Erdemir, Ph.D. (Committee Member)
Brian Davis, Ph.D. (Committee Member)
150 p.
Biomechanics; Biomedical Engineering; Biomedical Research; Design; Engineering; Experiments; Mathematics; Pathology; Sports Medicine
Shoulder, Glenohumeral Joint, Anterior Instability, Combined Bone Defects, Hill-Sachs Defect, Bony Bankart Lesion, Humeral Head Bone Loss, Bipolar Defects, Concavity Depth, Stability Ratio

Recommended Citations

Citations

  • Walia, P. (2015). The Effect of Combined Bony Defects on the Anterior Stability of the Glenohumeral Joint and Implications for Surgical Repair [Doctoral dissertation, Cleveland State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=csu1440173026

    APA Style (7th edition)

  • Walia, Piyush. The Effect of Combined Bony Defects on the Anterior Stability of the Glenohumeral Joint and Implications for Surgical Repair. 2015. Cleveland State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=csu1440173026.

    MLA Style (8th edition)

  • Walia, Piyush. "The Effect of Combined Bony Defects on the Anterior Stability of the Glenohumeral Joint and Implications for Surgical Repair." Doctoral dissertation, Cleveland State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=csu1440173026

    Chicago Manual of Style (17th edition)

csu1440173026
787
© 2015, all rights reserved.
This open access ETD is published by Cleveland State University and OhioLINK.
Release 3.2.12