Horwood et al: Complications and outcomes of total hip arthroplasty in dogs with luxoid hip dysplasia: 18 cases (2010–2022)
Veterinary Surgery 4, 2024

🔍 Key Findings

• Luxoid hip dysplasia (LH) was present in 8% of THA cases and significantly increased risk of major complications (p < .001).
• Intraoperative fissures/fractures were 3x more likely in LH dogs vs non-LH (39% vs 16%, p = .001).
• Dorsal luxation was more frequent in LH dogs (28% vs 4%, p = .019).
• Acetabular cup placement with ALO >35° was associated with luxation in LH dogs.
• Morphologic abnormalities (e.g., femoral valgus, lateralization/medialization of cortices) were common in LH and may complicate implantation.
• Despite higher risk, 94% of LH dogs achieved satisfactory outcomes after appropriate revisions.
• Younger age and lighter weight characterized LH dogs (mean age 14.7 months vs 40.9 months, p < .001).
• All LH dogs were treated with cementless stems; prophylactic cerclage was rarely used.