Forzisi et al: Evaluation of the effects of cementless total hip replacement on femoral length in skeletally immature dogs
Veterinary Surgery 1, 2025

🔍 Key Findings

Population: 24 dogs (<8.5 months) undergoing unilateral cementless THR.
Growth Impact:

• Operated femurs showed ~11.5% less trochanteric growth than controls (p = .002).
• No significant difference in femoral diaphyseal + epiphyseal length (p = .712) or femur overall (p = .465).

Cortical Width:

• Increased significantly at 10 mm distal to trochanter (4.6% increase, p = .037) and at 50% femoral length (8.5% increase, p = .030).

Clinical relevance: Despite measurable changes, no clinically significant impairment to femoral length occurred.
Effect Sizes:

• Moderate negative for trochanteric growth.
• Moderate positive for proximal femoral width.