Clinical Trial Details
— Status: Completed
Administrative data
NCT number |
NCT02983357 |
Other study ID # |
0435-16-FB |
Secondary ID |
|
Status |
Completed |
Phase |
|
First received |
|
Last updated |
|
Start date |
November 1, 2016 |
Est. completion date |
May 11, 2018 |
Study information
Verified date |
September 2023 |
Source |
University of Nebraska |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Observational
|
Clinical Trial Summary
The purpose of this study is to investigate if the use of autologous bone graft around the
anchor-peg glenoid prosthesis correlates with (1.) bony apposition on computed tomography
scans, (2.) decreased radiolucent lines, (3.) a decrease in component loosening, and (4.)
better functional outcomes. Investigators hypothesize that a glenoid anchor peg component
fixation utilizing autologous bone graft in Total Shoulder Arthroplasty (TSA) will have a
lower incidence of glenoid loosening and that the absence of radiolucent lines will correlate
with excellent shoulder function. Glenoid component loosening remains a major concern
following total shoulder arthroplasty and is the man reason for failure. Despite positive
findings in the investigators previous study (same population at a minimum of 2 year post
operative follow up), it is reasonable that loosening rates could increase with longer
follow-up. This study will be a minimum of 7 year post operative follow up.
Description:
Long term outcome follow-up of glenoid anchor peg component fixation utilizing autologous
bone graft in total shoulder arthroplasty. This research will be a case series study to
evaluate the adequacy of fixation and functional outcome of the glenoid anchor peg following
autologous bone grafting around the prosthesis at the time of implant. Eligibility criteria
are subjects,who were treated at the Department of Orthopaedic Surgery at University of
Nebraska Medical Center and Nebraska Medicine, with a total shoulder replacement using an
anchor peg glenoid and autologous bone grafting, and who are now at least 9 years out from
surgery. Each subject will be evaluated and this will include having three plain radiographs
of the operated shoulder of which 2 will be true anterior-posterior (AP) radiographs of the
glenohumeral joint, one in internal rotation and the other in external rotation, along with
axillary lateral films. In addition, the subject will have a computed tomographic (CT) scan,
without contrast dye, to examine the shoulder. One of the study personnel will use the
Constant Score and Simple Shoulder Test to obtain specific shoulder functional, motion, and
strength outcomes as well as pain assessment. A patient completed questionnaire, Rand Short
Form Health Survey, (Rand SF-36) will be obtained to look at association with general health
status. Investigators hypothesize that there will be a low incidence of glenoid loosening
with a TSA (total shoulder arthroplasty) using an anchor peg glenoid and autologous bone
grafting. In addition, investigators suggest that the absence of radiolucent lines will
correlate with excellent shoulder function. A study was previously completed at our facility
on same population at a minimum of 2 year follow up. At that time, and despite more than 10
years of widespread clinical use, no radiographic or clinical data existed regarding this
unique component type. The findings from this prior study indicated that total shoulder
arthroplasty (TSA) utilizing minimal glenoid peripheral peg cement and autologous reamings
placed between radial fins of the central peg allowed host bone incorporation for the central
peg and that better bone incorporation imparted fewer overall peg lucencies. The study
findings were accepted for presentation at The American Academy of Orthopaedic Surgeons,
2010, New Orleans. Despite these positive findings, loosening rates could increase farther
out from surgery, hence the purpose for the current proposed longer follow up study which is
evaluation at a minimum of 9 years post surgery.