Lateral nail entry increases valgus risk, but coronal plane deformity does not affect knee function after femoral locked nailing

Key Points

• The study aims to evaluate the impact of lateral nail entry and coronal plane deformity on knee function after femoral locked nailing.
• Long-term follow-up of at least 5 years post-surgery.
• Assessment of knee and patellofemoral joint function.
• Analysis of correlation between entry method and deformities.
• No adverse effects on knee function were found in patients with coronal plane deformities.
• Lateral entry to the greater trochanter was linked to a higher incidence of valgus deformity.
• Coronal plane deformity was independent of fracture location and classification.