Abstract
Wear debris has been observed in shoulder arthroplasties that use an ultrahigh-molecular weight polyethylene (UHMWPE) glenoid component, and the biologic response to this debris contributes to aseptic loosening of the implant. The objective of this study was to assess the wear and particle morphology of a cross-linked UHMWPE prosthetic glenoid. To our knowledge, this is the first time a simulator with kinematic considerations for assessing wear has been used in a shoulder model. Shoulder wear testing was conducted on 2 groups of glenoids (n = 3 in each group) by use of an orthopaedic joint simulator to create worst-case scenario motions. One group was manufactured from conventional UHMWPE. The second was manufactured from 50-kGy cross-linked UHMWPE. The resulting wear rates for the conventional and cross-linked glenoid components were 46.7 ± 2.6 mg/million cycles and 7.0 ± 0.4 mg/million cycles, respectively. Particles isolated from the 2 groups showed similar morphologies; however, the calculated osteolytic potential of the cross-linked glenoid was significantly lower. The results of this study support the use of cross-linked UHMWPE glenoids in clinical applications.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 130-137 |
| Number of pages | 8 |
| Journal | Journal of Shoulder and Elbow Surgery |
| Volume | 18 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2009 |
Fingerprint
ASJC Scopus subject areas
- Orthopedics and Sports Medicine
- Surgery
Cite this
Cross-linked glenoid prosthesis : A wear comparison to conventional glenoid prosthesis with wear particulate analysis. / Wirth, Michael A; Klotz, Conrad; Deffenbaugh, Daren L.; McNulty, Don; Richards, Laura; Tipper, Joanne L.
In: Journal of Shoulder and Elbow Surgery, Vol. 18, No. 1, 01.2009, p. 130-137.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Cross-linked glenoid prosthesis
T2 - A wear comparison to conventional glenoid prosthesis with wear particulate analysis
AU - Wirth, Michael A
AU - Klotz, Conrad
AU - Deffenbaugh, Daren L.
AU - McNulty, Don
AU - Richards, Laura
AU - Tipper, Joanne L.
PY - 2009/1
Y1 - 2009/1
N2 - Wear debris has been observed in shoulder arthroplasties that use an ultrahigh-molecular weight polyethylene (UHMWPE) glenoid component, and the biologic response to this debris contributes to aseptic loosening of the implant. The objective of this study was to assess the wear and particle morphology of a cross-linked UHMWPE prosthetic glenoid. To our knowledge, this is the first time a simulator with kinematic considerations for assessing wear has been used in a shoulder model. Shoulder wear testing was conducted on 2 groups of glenoids (n = 3 in each group) by use of an orthopaedic joint simulator to create worst-case scenario motions. One group was manufactured from conventional UHMWPE. The second was manufactured from 50-kGy cross-linked UHMWPE. The resulting wear rates for the conventional and cross-linked glenoid components were 46.7 ± 2.6 mg/million cycles and 7.0 ± 0.4 mg/million cycles, respectively. Particles isolated from the 2 groups showed similar morphologies; however, the calculated osteolytic potential of the cross-linked glenoid was significantly lower. The results of this study support the use of cross-linked UHMWPE glenoids in clinical applications.
AB - Wear debris has been observed in shoulder arthroplasties that use an ultrahigh-molecular weight polyethylene (UHMWPE) glenoid component, and the biologic response to this debris contributes to aseptic loosening of the implant. The objective of this study was to assess the wear and particle morphology of a cross-linked UHMWPE prosthetic glenoid. To our knowledge, this is the first time a simulator with kinematic considerations for assessing wear has been used in a shoulder model. Shoulder wear testing was conducted on 2 groups of glenoids (n = 3 in each group) by use of an orthopaedic joint simulator to create worst-case scenario motions. One group was manufactured from conventional UHMWPE. The second was manufactured from 50-kGy cross-linked UHMWPE. The resulting wear rates for the conventional and cross-linked glenoid components were 46.7 ± 2.6 mg/million cycles and 7.0 ± 0.4 mg/million cycles, respectively. Particles isolated from the 2 groups showed similar morphologies; however, the calculated osteolytic potential of the cross-linked glenoid was significantly lower. The results of this study support the use of cross-linked UHMWPE glenoids in clinical applications.
UR - http://www.scopus.com/inward/record.url?scp=57449084684&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=57449084684&partnerID=8YFLogxK
U2 - 10.1016/j.jse.2008.06.015
DO - 10.1016/j.jse.2008.06.015
M3 - Article
VL - 18
SP - 130
EP - 137
JO - Journal of Shoulder and Elbow Surgery
JF - Journal of Shoulder and Elbow Surgery
SN - 1058-2746
IS - 1
ER -