Radiologic, mechanical, and histologic evaluation of 2 glenoid prosthesis designs in a canine model

Michael A Wirth, Donna L. Korvick, Carl J. Basamania, Felipe Toro, Thomas B. Aufdemorte, Charles A Rockwood Jr

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

Aseptic loosening of glenoid components is a common problem associated with total shoulder arthroplasty. A new glenoid design aimed at improving fixation outcomes was compared with conventional keeled glenoids in weight-bearing canine shoulders. Radiographic, histologic, and mechanical tests were performed at 3 postoperative intervals (0, 3, and 6 months). The uncemented pegged glenoid achieved bone ingrowth around the peg flanges in each case. This result was confirmed histologically and radiographically. Mechanical results indicated that mean fixation strength increases significantly between 0 and 3 months after surgery and remains strong through 6 months. In contrast, conventional keeled glenoids were found to have partial or complete radiolucent lines around the keel in each instance, and mechanical testing demonstrated that mean fixation strength weakens significantly between 0 and 3 months after surgery and remains weak through 6 months. These results show that stem design changes can improve implant fixation. A cementless fluted peg stem was superior to a conventional cemented keel design in achieving osseous integration and fixation in a weight-bearing animal model.

Original languageEnglish (US)
Pages (from-to)140-148
Number of pages9
JournalJournal of Shoulder and Elbow Surgery
Volume10
Issue number2
DOIs
StatePublished - Mar 2001

Fingerprint

Prosthesis Design
Weight-Bearing
Canidae
Arthroplasty
Animal Models
Bone and Bones

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Surgery

Cite this

Radiologic, mechanical, and histologic evaluation of 2 glenoid prosthesis designs in a canine model. / Wirth, Michael A; Korvick, Donna L.; Basamania, Carl J.; Toro, Felipe; Aufdemorte, Thomas B.; Rockwood Jr, Charles A.

In: Journal of Shoulder and Elbow Surgery, Vol. 10, No. 2, 03.2001, p. 140-148.

Research output: Contribution to journalArticle

Wirth, Michael A ; Korvick, Donna L. ; Basamania, Carl J. ; Toro, Felipe ; Aufdemorte, Thomas B. ; Rockwood Jr, Charles A. / Radiologic, mechanical, and histologic evaluation of 2 glenoid prosthesis designs in a canine model. In: Journal of Shoulder and Elbow Surgery. 2001 ; Vol. 10, No. 2. pp. 140-148.
@article{abd2f5afb4e74e52bf7fc43b914cc88a,
title = "Radiologic, mechanical, and histologic evaluation of 2 glenoid prosthesis designs in a canine model",
abstract = "Aseptic loosening of glenoid components is a common problem associated with total shoulder arthroplasty. A new glenoid design aimed at improving fixation outcomes was compared with conventional keeled glenoids in weight-bearing canine shoulders. Radiographic, histologic, and mechanical tests were performed at 3 postoperative intervals (0, 3, and 6 months). The uncemented pegged glenoid achieved bone ingrowth around the peg flanges in each case. This result was confirmed histologically and radiographically. Mechanical results indicated that mean fixation strength increases significantly between 0 and 3 months after surgery and remains strong through 6 months. In contrast, conventional keeled glenoids were found to have partial or complete radiolucent lines around the keel in each instance, and mechanical testing demonstrated that mean fixation strength weakens significantly between 0 and 3 months after surgery and remains weak through 6 months. These results show that stem design changes can improve implant fixation. A cementless fluted peg stem was superior to a conventional cemented keel design in achieving osseous integration and fixation in a weight-bearing animal model.",
author = "Wirth, {Michael A} and Korvick, {Donna L.} and Basamania, {Carl J.} and Felipe Toro and Aufdemorte, {Thomas B.} and {Rockwood Jr}, {Charles A}",
year = "2001",
month = "3",
doi = "10.1067/mse.2001.112021",
language = "English (US)",
volume = "10",
pages = "140--148",
journal = "Journal of Shoulder and Elbow Surgery",
issn = "1058-2746",
publisher = "Mosby Inc.",
number = "2",

}

TY - JOUR

T1 - Radiologic, mechanical, and histologic evaluation of 2 glenoid prosthesis designs in a canine model

AU - Wirth, Michael A

AU - Korvick, Donna L.

AU - Basamania, Carl J.

AU - Toro, Felipe

AU - Aufdemorte, Thomas B.

AU - Rockwood Jr, Charles A

PY - 2001/3

Y1 - 2001/3

N2 - Aseptic loosening of glenoid components is a common problem associated with total shoulder arthroplasty. A new glenoid design aimed at improving fixation outcomes was compared with conventional keeled glenoids in weight-bearing canine shoulders. Radiographic, histologic, and mechanical tests were performed at 3 postoperative intervals (0, 3, and 6 months). The uncemented pegged glenoid achieved bone ingrowth around the peg flanges in each case. This result was confirmed histologically and radiographically. Mechanical results indicated that mean fixation strength increases significantly between 0 and 3 months after surgery and remains strong through 6 months. In contrast, conventional keeled glenoids were found to have partial or complete radiolucent lines around the keel in each instance, and mechanical testing demonstrated that mean fixation strength weakens significantly between 0 and 3 months after surgery and remains weak through 6 months. These results show that stem design changes can improve implant fixation. A cementless fluted peg stem was superior to a conventional cemented keel design in achieving osseous integration and fixation in a weight-bearing animal model.

AB - Aseptic loosening of glenoid components is a common problem associated with total shoulder arthroplasty. A new glenoid design aimed at improving fixation outcomes was compared with conventional keeled glenoids in weight-bearing canine shoulders. Radiographic, histologic, and mechanical tests were performed at 3 postoperative intervals (0, 3, and 6 months). The uncemented pegged glenoid achieved bone ingrowth around the peg flanges in each case. This result was confirmed histologically and radiographically. Mechanical results indicated that mean fixation strength increases significantly between 0 and 3 months after surgery and remains strong through 6 months. In contrast, conventional keeled glenoids were found to have partial or complete radiolucent lines around the keel in each instance, and mechanical testing demonstrated that mean fixation strength weakens significantly between 0 and 3 months after surgery and remains weak through 6 months. These results show that stem design changes can improve implant fixation. A cementless fluted peg stem was superior to a conventional cemented keel design in achieving osseous integration and fixation in a weight-bearing animal model.

UR - http://www.scopus.com/inward/record.url?scp=0035294031&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035294031&partnerID=8YFLogxK

U2 - 10.1067/mse.2001.112021

DO - 10.1067/mse.2001.112021

M3 - Article

C2 - 11307077

AN - SCOPUS:0035294031

VL - 10

SP - 140

EP - 148

JO - Journal of Shoulder and Elbow Surgery

JF - Journal of Shoulder and Elbow Surgery

SN - 1058-2746

IS - 2

ER -