An Animal Model for the Implantation of a Bone Liner in the Flexible Implant Arthroplasty

J. A. McGehee; A. B. Swanson; T. D. Braden

doi:10.1055/s-0038-1633161

Veterinary and Comparative Orthopaedics and Traumatology, Table of Contents

Vet Comp Orthop Traumatol 1988; 01(01): 38-43
DOI: 10.1055/s-0038-1633161

Short Communication

Schattauer GmbH

An Animal Model for the Implantation of a Bone Liner in the Flexible Implant Arthroplasty

Authors

J. A. McGehee

¹From the Department of Small Animal Clinical Sciences (McGehee and Braden), College of Veterinary Medicine, Michigan State University, East Lansing, Michigan; Blodgett Memorial Medical Center (Swanson), Grand Rapids, Michigan
A. B. Swanson

¹From the Department of Small Animal Clinical Sciences (McGehee and Braden), College of Veterinary Medicine, Michigan State University, East Lansing, Michigan; Blodgett Memorial Medical Center (Swanson), Grand Rapids, Michigan
T. D. Braden

¹From the Department of Small Animal Clinical Sciences (McGehee and Braden), College of Veterinary Medicine, Michigan State University, East Lansing, Michigan; Blodgett Memorial Medical Center (Swanson), Grand Rapids, Michigan

Abstract

A retrospective study of silicone elastomer implants used clinically as a flexible implant in the metacarpophalangeal (MP) and proximal interphalangeal (PIP) joints in humans indicated a 7.6% implant fracture failure rate. Implant fractures appeared to occur from tear propagation due to damage resulting from the impingement of the sharp bone edges upon the implant’s surface. A protective synthetic bone liner was devised to reduce in vivo damage and prevent implant failures. The rabbit stifle was used as the animal model for the human metacarpophalangeal and proximal interphalangeal joint and 73 implant arthroplasties were successfully performed.

Key words

Bone liner - Flexible implant arthroplasty - Silicone elastomer implants - Implant fractures

Full Text

References

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