Peer-reviewed veterinary case report
New bone surgery helps dogs with partial cruciate ligament tears
By McLean, E J & Cashmore, R G·Published in New Zealand veterinary journal·2024·Southpaws Specialty Surgery for Animals, Australia·View original on PubMed →
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Original publication title: Novel crescentic, medial-closing, medially translating, centre-of-rotation-of-angulation-based, levelling osteotomy for lateral compartment stifle disease with partial cranial cruciate ligament tear in two dogs.
- Species:
- dog
Plain-English summary
Two large breed dogs were brought in for chronic limping and discomfort in their back legs. After examining them, vets found severe cartilage damage and early signs of cranial cruciate ligament disease in both dogs. They performed a specialized surgery called medial-closing, medially translating, centre-of-rotation-of-angulation-based levelling osteotomy (mcmtCBLO) to relieve pressure on the affected area. Eight weeks later, one dog had no limping, while the other showed significant improvement. Long-term follow-ups indicated that both dogs had minimal lameness and mild arthritis, suggesting the surgery was successful.
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Abstract
CASE HISTORY: Two mature, large breed dogs presented with chronic lameness and discomfort localised to the stifle. CLINICAL FINDINGS: No hindlimb deformities were present on physical examination or radiographic evaluation. No stifle instability was present. Arthroscopy revealed severe (grade 5/5 modified Outerbridge score) cartilage erosion in the lateral compartment (femorotibial), marked degeneration of the lateral meniscus and early cranial cruciate ligament disease in both patients. TREATMENT AND OUTCOME: Medial-closing, medially translating, centre-of-rotation-of-angulation-based, levelling osteotomy (mcmtCBLO) was performed in both patients. The procedure aims to shift the pelvic limb's mechanical axis medially to reduce pressure in the lateral compartment while also reducing craniocaudal shear forces by lowering the tibial plateau angle.Eight weeks after surgery one patient's lameness had resolved while the other had improved significantly. Second-look arthroscopy performed at this time revealed fibrocartilage formation in the lateral compartment without progression of cruciate disease in both cases. At long-term follow-up (approximately 3 and 5 years), favourable outcomes (no or minimal lameness, mild or moderate osteoarthritis) were identified on the long-term owner survey, lameness examination and radiographs. CLINICAL RELEVANCE: mcmtCBLO reduced or eliminated short- and long-term lameness in these two cases afflicted by concurrent lateral compartment and early cranial cruciate ligament disease.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/38296654/