Partial Parasagittal Patellectomy in Dogs: A Retrospective Case Series of 19 Dogs

Abstract

Objective The aim of this study was to describe partial parasagittal patellectomy for the surgical management of patellar luxation, including surgical technique, proposed indications, complications, and outcomes in a cohort of dogs.

Study Design This is a single-center retrospective clinical case series.

Methods Medical records (2019–2020) of dogs presenting for patellar luxation were reviewed. Clinical signs, luxation direction and grade, preoperative imaging and intraoperative findings, and complications were retrospectively retrieved. Owners were contacted via questionnaire for medium- and long-term follow-up.

Results A total of 24 stifles in 19 dogs met the inclusion criteria. Intraoperative minor complications occurred in four stifles. A single minor complication occurred postoperatively with no major complications. Increased thickness and radiographic attenuation of the patellar ligament were noted in 14 stifles at radiographic reassessment. Re-luxation was not encountered, with long-term owner-assessed outcome as good to excellent in all cases.

Conclusion Partial parasagittal patellectomy, used in conjunction with block recession trochleoplasty and tibial tuberosity transposition, provided reliable resolution of patellar luxation in canine stifles with grade 2 or 3 luxation where width mismatch between the patella and the trochlea was noted intraoperatively. Long-term outcome appears to be good to excellent with a low rate of complication.

Keywords

partial parasagittal patellectomy - patellar luxation - femoral malformation - patellar re-luxation - patella–trochlear groove mismatch

Authors' Contribution

E.A.D., B.W.G., and M.J.A. were responsible for the study design and manuscript review.

Publikationsverlauf

Eingereicht: 23. Januar 2022

Angenommen: 24. Mai 2023

Artikel online veröffentlicht:
20. Juli 2023

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