Peer-reviewed veterinary case report
Patellar tendon length changes after surgery for dog kneecap
By de Moya, Kevin & Kim, Stanley·Published in PloS one·2020·University of Florida College of Veterinary Medicine, United States·View original on PubMed →
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Original publication title: Radiographic evaluation of patellar tendon length following corrective surgical procedures for medial patellar luxation in dogs.
- Species:
- dog
Plain-English summary
A group of dogs that had surgery to fix a knee problem called medial patellar luxation (where the kneecap slips out of place) were monitored for changes in their patellar tendon length over 2-3 months. Some dogs experienced lengthening or shortening of the tendon after the surgery, but this did not seem to be linked to factors like age, weight, or the severity of their condition. Importantly, the lengthening of the tendon did not lead to a return of the luxation problem. Most dogs showed no significant issues after the surgery and were able to recover well.
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Abstract
OBJECTIVE: To quantify changes in the patellar tendon length following surgical correction of medial patellar luxation in dogs and evaluate potential risk factors associated with patellar tendon elongation. STUDY DESIGN: Retrospective case series (n = 50). METHODS: Dogs that underwent surgery for medial patellar luxation correction and had 2-3 months follow up were included. Digital radiographs were utilized to quantify the patellar tendon length to patellar length ratio at various follow-up points. Odds ratio comparisons between potential risk factors associated with changes in patellar tendon length were performed. RESULTS: Post-operative patellar tendon lengthening of ≥ 5% was observed in 20% of stifles and post-operative patellar tendon shortening of ≥ 5% was observed in 22% of stifles at the 2-3 month follow up period. The risk factors including age, body weight, trochleoplasty and grade of medial patellar luxation were not significantly associated with risk of patellar tendon elongation. Patellar tendon lengthening was not associated with recurrence of luxation. CONCLUSION: Patellar tendon lengthening and shortening can be observed in dogs following common medial patellar luxation corrective procedures in the short term follow up period. Patellar tendon lengthening does not appear to be associated with age, weight, trochleoplasty, grade of luxation, or risk of luxation recurrence.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/32886725/