Technique and Results for Total Hip Replacement in Sheep: An Experimental Model

D. P. Bruns; M. L. Olmstead; A. S. Litsky

doi:10.1055/s-0038-1632523

Veterinary and Comparative Orthopaedics and Traumatology, Table of Contents

Vet Comp Orthop Traumatol 1996; 09(04): 158-164
DOI: 10.1055/s-0038-1632523

Original Research

Schattauer GmbH

Technique and Results for Total Hip Replacement in Sheep: An Experimental Model

D. P. Bruns

¹From the Department of Veterinary Clinical Sciences, College of Veterinary Medicine

,

M. L. Olmstead

¹From the Department of Veterinary Clinical Sciences, College of Veterinary Medicine

,

A. S. Litsky

²Departments of Surgery and Biomedical Engineering, Colleges of Medicine and Engineering, The Ohio State University, Columbus, Ohio, USA

› Author Affiliations

Abstract

Summary

Fifty healthy adult Suffolk cross sheep were evaluated as a research animal for cemented total hip replacement. The surgical technique, peri-operative care, and long-term evaluation of the animals is reported. A modular cemented canine hip replacement system was used in this project. Postoperative fractures of the operated femur were observed in five animals. Two sheep developed septic loosening of the acetabular components. Two sheep experienced immediate postoperative luxations. One animal developed an acetabular fracture and infection. Five sheep exhibited mild lameness of the operated limb one year postoperatively, while all others had a normal gait. Postoperative activity level played a significant role in the development of femur fractures.

Fifty adult Suffolk cross sheep were evaluated as a research animal for cemented total hip replacement. The surgical technique, peri-operative care and long-term evaluation of the animals are reported.

Keywords

Sheep - hip replacement - bone cement

Full Text

References

REFERENCES
1 Coventry MB. Ten year results of total hip arthroplasty. Orthop Trans 1981; 5: 349-50.
2 Gofton N, Sumner-Smith G. Total hip prosthesis for revision of unsuccessful excision arthroplasty. Vet Surg 1982; 11: 134-9.
3 Lewis RH, Jones Jr. JP. Clinical study of canine total hip arthroplasty. Vet Surg 1980; 9: 20-3.
4 Montgomery RD, Milton JL, Pernell R, Aberman HM. Total hip arthroplasty for treatment of canine hip dysplasia. Vet Clin North Am 1992; 22: 703-19.
5 NIH consensus development conference, total hip replacement. J Orthop Res 1983; 1: 189-234.
6 Olmstead ML. Total hip replacement in the dog. Semin Vet Med Surg (Small Anim) 1987; 2: 131-40.
7 Olmstead ML, Hohn RB, Turner TM. A five-year study of 221 total hip replacements in the dog. J Am Vet Med Assoc 1983; 183: 191-4.
8 Parker RB, Bloomberg MS, Bitetto W. et al Canine total hip arthroplasty: a clinical review of 20 cases. J Am Anim Hosp Assoc 1987; 20: 97-104.
9 Salvatti EA, Wilson PD, Jolley MN. et al A ten year follow-up study of our first one hundred consecutive Charnley total hip replacements. J Bone Joint Surg 1981; 63 A 753-67.
10 Sutherland CJ, Wilde AH, Borden LS, Marks KE. A ten year follow-up of one hun hundred consecutive Muller curved-stem total hip replacement arthroplasties. J Bone Joint Surg 1982; 64 A 970-82.
11 Hoefle WD. A surgical procedure for prosthetic total hip replacement in the dog. J Am Anim Hosp Assoc 1974; 10: 269-76.
12 Leighton RL. The Richards II canine total hip prosthesis. J Am Anim Hosp Assoc 1979; 15: 73-6.
13 Olmstead ML. The canine cemented modular total hip prosthesis. J Am Anim Hosp Assoc 1995; 31: 109-24.
14 Olmstead ML, Hohn RB, Turner TM. Technique for canine total hip replacement. Vet Surg 1981; 10: 44-50.
15 Paul HA, Bargar WL. Modified technique for canine total hip replacement. J Am Anim Hosp Assoc 1987; 23: 13-8.
16 Stauffer RN. Ten year follow-up study of total hip replacement with particular reference to roentgenographic loosening of the components. J Bone Joint Surg 1982; 64 A 983-90.
17 Litsky AS, Rose RM, Rubin CT, Thrasher EL. A reduced modulus acrylic bone cement: preliminary results. J Orthop Res 1990; 8: 623-6.
18 Radin EL, Rubin CT, Thrasher EL. et al Changes in the bone-cement interface after total hip replacement: An in vivo animal study. J Bone Joint Surg 1982; 64 A 1188-200.
19 Rose RM, Martin RB, Orr RB, Radin EL. Architectural changes in the proximal femur following prosthetic insertion: preliminary observations of an animal model. J Biomech 1984; 17: 241-9.