Canis ISSN: 2398-2942

Patella: lateral luxation

Contributor(s): Joseph Harari, Gareth Arthurs

Introduction

  • Uncommon condition.
  • Signs: intermittent hindlimb lameness.
  • In large or giant breeds may be associated with Genu valgumCoxa valga.
  • Cause: developmental disorder. Rarely traumatic or congenital.
Majority of comments relating to etiopathogenesis, grading of patellar luxation, diagnosis and treatment are interchangeable with Patella: medial luxation but with a mirror substitute of terminology (lateral for medial, internal for external, etc). Print off the owner factsheet on Luxating patella Luxating patella to give to your client.

Pathogenesis

Etiology

  • Developmental.
  • Secondary to hindlimb conformational abnormality.

Specific

Diagnosis

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Treatment

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Prevention

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Outcomes

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Di Dona F, Della Valle G, Balestriere C, Lamanga B, Meomaratino L, Napoleone G, Lamanga F, Fatone G (2016) Lateral patellar luxation in nine small breed dogs. Open Vet J 6 (3), 255-258 PubMed.
  • Kalff S, Butterworth S J, Miller A, Keeley B, Baines S, McKee W M (2014) Lateral patellar luxation: a retrospective study in 65 dogs. Vet Comp Orthop Traumatol 27 (2), 130-134 PubMed.
  • Shaver S L, Mayhew K N, Sutton J S, Mayhew P D, Runge J J, Brown D C, Kass P H (2014) Complications after corrective surgery for lateral patellar luxation in dogs: 36 cases. JAVMA 244 (4), 444-448 PubMed.
  • Hayes A G, Boudrieau R B & Hungerford L L (1994) Frequency and distribution of medial and lateral patellar luxation in dogs - 124 cases (1982-1992). JAVMA 205 (5), 716-720 PubMed.

Other sources of information

  • DeCamp, Johnston, Dejardin, Schaefer (eds) (2016) The stifle joint. In: Brinker Piermattei & Flo's Small Animal Orthopaedics and Fracture Repair. 5th edn. Elsevier. pp 597-669.
  • Kowaleski M P, Boudrieau R J, Pozzi A (2012) Stifle Joint. In: Veterinary Surgery Small Animal.  Tobias & Johnston (eds). Elsevier Saunders. Chapter 62, pp 906-998.
  • McKee W M & Cook J M (2006) The Stifle. In: BSAVA Manual of Canine and Feline Musculoskeletal Disease. Houlton, Cook, Innes & Langley-Hobbs (eds). pp 350-395.
  • Rousch (1993) Canine patellar luxation. Vet Clin North Am Small Anim Pract 23, 855-868.


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