Treatment of cranial cruciate ligament insufficiency and medial patellar luxation in a small‐breed dog with a true spherical osteotomy

Abstract

A 9-year-old, neutered, male, Cairn Terrier dog presented with a 3-year history of progressive pain and lameness of the right hindlimb. After an acute episode of severe pain and non-weight-bearing lameness, the dog was referred to our clinic for evaluation. The physical examination was unremarkable; the orthopaedic examination revealed a positive cranial drawer sign and medial patellar luxation grade 3/4. Orthogonal radiographs were taken. Chronic degenerative changes consistent with cranial cruciate ligament insufficiency and medial patellar luxation were noted. Preoperative planning was performed using veterinary preoperative planning software. A spherical osteotomy was performed to level the tibial plateau, correct the medial patellar luxation and improve a valgus deformity. The osteotomy was stabilised using a polyaxial 2.0 tibial plateau levelling osteotomy plate. At the 8-week postoperative follow-up examination, the dog had normal weight-bearing ability without evidence of lameness or pain.

Bacterial DNA and osteoarthritis in dogs with patellar luxation and cranial cruciate ligament rupture

“…Medial patellar luxation (MPL) and cranial cruciate ligament rupture (CCLR), resulting in inflammation, lameness, and osteoarthritis, are the leading causes of leg pain in dogs [1,2]. These conditions primarily affect the stifle joint and are most commonly observed during the stance and swing phases of movement [3,4].…”