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Vet Comp Orthop Traumatol 1999; 12(04): 183-187
DOI: 10.1055/s-0038-1632488
Clinical Communication
Schattauer GmbH

Cartilage Changes in Dogs with Surgically Treated Medial Patellar Luxations

Kathy W. Wander
1   From the Department of Clinical Sciences
,
Barbara E. Powers
2   Department of Pathology College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
,
P. D. Schwarz
1   From the Department of Clinical Sciences
› Author Affiliations
Further Information

Publication History

Received 11 January 1999

Accepted 01 April 1999

Publication Date:
08 February 2018 (online)

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Summary

The purpose of this study is to examine the stifle joint articular cartilage changes in dogs with clinically significant patellar luxation and determine if this cartilage is significantly different from that of dogs without patellar luxation. Osteochondral slices were obtained from dogs during recession sulcoplasty. Osteochondral sections were submitted for histological analysis and histochemical staining. Articular cartilage was blindly evaluated using a modified Mankin score. Cartilage histological scores were significantly different between controls and dogs with patellar luxation. There was not any correlation between grade of luxation, age or length of clinical signs and histological score. Neither was there any significant difference between controls and dogs with patellar luxation, with respect to glycosaminoglycan content, as estimated by Safranin-O staining. Most changes in the articular cartilage were seen in the top two zones and consisted of cell loss and minor surface fibrillation. Even with a statistically significant difference, the changes in the cartilage were minor. In the authors’ opinion, this study further supports the use of the recession sulcoplasty technique in treating patellar luxations in dogs. Surgical techniques that preserve hyaline cartilage should be recommended where possible.

Articular cartilage from dogs with surgically treated medial patellar luxation was examined histologically and biochemically. Changes in the cartilage were superficial and considered to be minor.

Keywords

Patella luxation - cartilage - canine - recession sulcoplasty
 

  • REFERENCES

  • 1 Boone E, Hohn R, Weisbrode S. Trochlear Recession Wedge Technique for Patella Luxation: An Experimental Study. J Am Anim Hosp Assoc 1983; 19: 735-42.
    PubMedSearch in Google Scholar
  • 2 Brinker W, Piermatti D, Flo G. The Stifle Joint. In: Handbook of Small Animal Orthopedics and Fracture Repair. Philadelphia: WB Saunders; 1997: 516-34.
    Search in Google Scholar
  • 3 Buckwalter J, Mankin H. Articular Cartilage: degeneration and osteoarthritis, repair. Course Lect 1998; 47: 487-504.
    PubMedSearch in Google Scholar
  • 4 Buckwalter J, Rosenburg L, Coutts R, Hunziker E, Reddi A, Mow V. Articular cartilage: Injury and Repair. In: Injury and Repair of the Musculoskeletal Soft Tissue. Woo SL-Y, Buckwalter J. (eds) Park Ridge, IL: American Academy of Orthopaedic Surgeons; 1988: 465-82.
    Search in Google Scholar
  • 5 Foland J, Mcllwraith C, Trotter G, Powers B, Lamar C. Effect of Betamethasone and Exercise on Equine Carpal Joints with Osteochondral Fragments. J Vet Surg 1994; 23: 369-76.
    PubMedSearch in Google Scholar
  • 6 Froimson M, Ratcliffe A, Gardner T, Mow V. Differences in patellofemoral joint cartilage material properties and their significance to the etiology of cartilage surface fibrillation. Osteoarthritis Cartilage 1997; 5 (06) 377-86.
    CrossrefPubMedSearch in Google Scholar
  • 7 Guilak F, Ratcliffe A, Lane N, Rosenwasser M, Mow V. Mechanical and Biochemical Changes in the Superificial Zone of Articular Cartilage in Canine Experimental Osteoarthritis. J Orthop Res 1994; 12: 474-84.
    CrossrefPubMedSearch in Google Scholar
  • 8 Hayes A, Boudrieau R, Hungerford L. Frequency and distribution of medial and lateral patellar luxation in dogs: 124 cases (1982-1992). J Am Vet Med Assoc 1994; 205 (05) 716-20.
    PubMedSearch in Google Scholar
  • 9 Inerot S, Heinegard D, Audell L, Olsson S. Articular-cartilage Proteoglycans in Aging and Osteoarthritis. Biochem J 1978; 169: 143-56.
    CrossrefPubMedSearch in Google Scholar
  • 10 Kiss I, Foldes I. Effect of experimental patellar luxation on the knee joint in the rat. Acta Morphologica Hungarica 1983; 31 (04) 371-86.
    PubMedSearch in Google Scholar
  • 11 Kiviranta I, Jurvelin J, Taumi M, Saamanen A, Helminen H. Microspectrophotometric quanititation of glycosaminoglycans in articular carilage sections stained with Safranin- O. Histochemistry 1985; 82: 249-55.
    CrossrefPubMedSearch in Google Scholar
  • 12 Mankin H, Dorfman H, Lippiello L, Zarins A. Biochemical and metabolic abnormalities in articular cartilage from osteoarthritic human hips. J Bone Joint Surg 1971; 53A: 523-37.
    PubMedSearch in Google Scholar
  • 13 Moore J, Banks W. Repair of full-thickness defects in the femoral trochlea of dogs after trochlear arthroplasty. Am J Vet Res 1989; 50: 1406-13.
    PubMedSearch in Google Scholar
  • 14 Newton P, Mow V, Gardner T, Buckwalter J, Albright J. The Effect of Lifelong Exercise on Canine Articular Cartilage. Am J Sports Med 1997; 25 (03) 282-7.
    CrossrefPubMedSearch in Google Scholar
  • 15 Roush J. Canine Patellar Luxation. Vet Clin North Am: Small Anim Pract 1993; 23: 855-68.
    CrossrefPubMedSearch in Google Scholar
  • 16 Roy R, Wallace L, Johnston G, Wickstrom S. A Retrospective Evaluation of Stifle Osteoarthritis in Dogs with Medial Patella Luxation and Unilateral Surgical Repair. J Vet Surg 1992; 21: 475-9.
    PubMedSearch in Google Scholar
  • 17 Saamanen A, Tammi M, Jurvelin J, Kiviranta I, Helminen H. Proteoglycan Alternations Following Immobilization and Remobilization in the Articular Cartilage of Young Canine Knee (Stifle) Joint. J Orthop Res 1990; 8: 863-73.
    CrossrefPubMedSearch in Google Scholar
  • 18 Slocum B, Slocum DB, Devine T, Boone E. Wedge recession for treatment of recurrent luxation of the patella: a preliminary report. Clin Orthop 1982; 164: 48-53.
    PubMedSearch in Google Scholar
  • 19 Slocum B, Devine T. Trochlear recession for correction of luxating patella in the dog. J Am Vet Med Assoc 1985; 186: 365-9.
    PubMedSearch in Google Scholar
  • 20 van der Sluijs J, Geesink G, van der Linden A, Bulstra S, Kuyer R, Druller J. The Reliability of the Mankin Score for Osteoarthritis. J Orthop Res 1992; 10: 58-61.
    CrossrefPubMedSearch in Google Scholar
  • 21 Vasseur P. Stifle Joint. In: Textbook of Small Animal Surgery, ed. Slatter DH. Philadelphia: WB Saunders; 1993: 1854-62.
    Search in Google Scholar
  • 22 Vaughan L, Robins G. Surgical Remodeling of the femoral trochlea: An experimental study. Vet Record 1975; 96: 447-50.
    CrossrefPubMedSearch in Google Scholar