Vet Comp Orthop Traumatol 2003; 16(03): 184-190
DOI: 10.1055/s-0038-1632775
Clinical Communication
Schattauer GmbH

Evaluation of femoral head damage during canine total hip replacement

A comparison of four reduction techniques
I. Wood
1   College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
,
H. Powell
2   Department of Materials Science and Engineering, The Ohio State University, Columbus, OH, USA
,
A. Kohm
3   Center for Biomedical Engineering, The Ohio State University, Columbus, OH, USA
,
J. J. Lannutti
2   Department of Materials Science and Engineering, The Ohio State University, Columbus, OH, USA
,
J. Dyce
1   College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
› Author Affiliations

This work was supported by OSU Canine Research Funds. The authors thank Tim Vojt for illustrations. Hip skids were a generous gift from BioMedtrix.
Further Information

Publication History

Received 09 August 2002

Accepted 23 January 2003

Publication Date:
22 February 2018 (online)

Preview

Summary

Three types of hip skids and a Hohmann retractor technique were used to facilitate reduction of the prosthesis in cadaveric canine total hip replacement. The degree of damage to the femoral head was evaluated using scanning electron microscopy and optical profilometry. Standard metal and ME-92 coated metal hip skids caused severe regional scratching of the femoral head. Morphologically similar scratch patterns were also identified on femoral heads retrieved from clinical patients. Use of a plastic coated skid or the Hohmann retractor technique had no perceptible effect on surface finish, and therefore either method is acceptable in clinical practice. The use of metal hip skids cannot be recommended for hip reduction as the resultant pattern of femoral head scratching is likely to be associated with early and severe polyethylene wear.