Journal of Veterinary Clinics (한국임상수의학회지)

The Korean Society of Veterinary Clinics (한국임상수의학회)
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Bilateral Patellar Groove Replacement in a Dog with Iatrogenic Trochlear Groove Damage

  • Kim, Yongrak (College of Veterinary Medicine, Chungnam National University) ;
  • Park, Yunsik (College of Veterinary Medicine, Chungnam National University) ;
  • Park, Jiyoung (College of Veterinary Medicine, Chungnam National University) ;
  • Jeong, Seong Mok (College of Veterinary Medicine, Chungnam National University) ;
  • Lee, Haebeom (College of Veterinary Medicine, Chungnam National University)
  • Received : 2016.06.13
  • Accepted : 2016.08.16
  • Published : 2016.10.31
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Abstract

A 2-year-old, 1.94 kg spayed female Toy Poodle was referred for revision surgery for patellar reluxation following surgery for bilateral medial patellar luxation (MPL). Intermittent non-weight-bearing lameness of the right hindlimb and weight-bearing lameness of the left hindlimb were evident on general inspection. A physical examination revealed that there was a bilateral grade 4 MPL. On radiographs, the medial and lateral trochlear ridge was bilaterally worn out. Patellar groove replacement (PGR) was performed in two stages to replace the bilateral femoral trochlea that had a severely worn out groove. Corrective femoral osteotomy with increasing anteversion angle, tibial tuberosity transposition, medial releasing, lateral imbrications and PGR were performed on the right hindlimb. Six months after surgery on the right hindlimb, a PGR prosthesis was positioned medially on the frontal plane and tibial tuberosity transposition and lateral imbrications were performed on the left hindlimb. Two weeks after surgery, reluxation of the patella occurred on the left hindlimb. The tibial tuberosity transposition was performed to realign the patella more laterally than the previous surgery, and a patellar sling was applied. Two years after the last surgery, the patient showed no pain on the stifle joint and satisfactory weight-bearing ambulation. Reluxation did not recur. PGR maybe a successful treatment for dogs with iatrogenically damaged and/or worn out patellar grooves.

Keywords

References

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