Peer-reviewed veterinary case report
How common is kneecap dislocation in dogs and what it looks like
By Bound, N et al.·Published in Veterinary and comparative orthopaedics and traumatology : V.C.O.T·2009·The Royal Veterinary College, United Kingdom·View original on PubMed →
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Original publication title: The prevalence of canine patellar luxation in three centres. Clinical features and radiographic evidence of limb deviation.
- Species:
- dog
Plain-English summary
A group of 155 dogs, mostly Labradors, were found to have a knee problem called patellar luxation, where the kneecap slips out of place. Most of these dogs were female, and the issue was more common in larger breeds. The study showed that the shape of the thigh and shin bones in these dogs was different compared to healthy dogs. This condition can lead to limping and discomfort, and it appears to be becoming more common in large breed dogs. Treatment options may include surgery or physical therapy, depending on the severity of the luxation.
People also search for: dog limping knee problem · Labrador patellar luxation treatment · female dog knee issues
Abstract
The medical records of 155 dogs with patellar luxation (PL) from three different centres were analysed. Each case was classified according to the nature of its luxation and any concurrent orthopaedic conditions plus the age at diagnosis were also noted. Measurements relating to angle of inclination (AOI) of the femoral neck and medio-lateral bowing of the femur and tibia at the stifle were also recorded. The femoral and tibial data were compared to dogs with another orthopaedic condition in a case-control assessment. Labradors were most commonly affected (21%). Most luxations were medial (92%) and 54% of affected dogs were female. The mean AOI of the hip was 148.95 degrees . There was a statistically significant difference between the stifles of dogs with PL compared to a control population. This study concluded that PL in large breeds is increasing. Lateral luxation was uncommon and was not associated exclusively with large breeds. Females were more likely to have PL than males and being female was a risk factor associated with coxa valga. There are significant differences in medio-lateral stifle conformation between dogs with PL and control dogs.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/19151868/