Peer-reviewed veterinary case report
Risk of lameness and surgery in dogs with hidden Grade II knee
By Hamilton, L et al.·Published in The Journal of small animal practice·2020·Davies Veterinary Specialists, United Kingdom·View original on PubMed →
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Original publication title: The natural history of canine occult Grade II medial patellar luxation: an observational study.
- Species:
- dog
Plain-English summary
A group of 38 adult dogs with Grade II medial patellar luxation (a knee joint issue) that were initially not showing any symptoms were followed for over four years. About half of these dogs later developed lameness and needed surgery on the affected knee, with some requiring surgery on the opposite knee as well. The average time before they needed surgery was around 15 months after their first visit. This suggests that even if a dog seems fine at first, they may still face issues later on that require treatment.
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Abstract
OBJECTIVES: To determine the risk of lameness and the rate of subsequent medial patellar luxation surgery in dogs that present with occult Grade II medial patellar luxation. MATERIALS AND METHODS: Retrospective owner survey and review of clinical records of adult dogs diagnosed with Grade II medial patellar luxation that were initially asymptomatic and managed non-surgically that had a minimum of 4-year follow-up. Clinical notes and owner questionnaires identified dogs that subsequently developed lameness and required surgery on the previously asymptomatic stifle. RESULTS: Thirty-eight dogs were included with an average follow-up of 51 months. Seventeen dogs re-presented for unscheduled contralateral medial patellar luxation surgery at an average of 15 months after initial presentation. A further two dogs had chronic contralateral limb lameness after an average of 33 months after initial surgery and may have been potential surgical candidates. CLINICAL SIGNIFICANCE: Fifty percent of adult dogs presenting with occult Grade II medial patellar luxation subsequently developed chronic lameness or required surgery.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/32003012/