Legg-Calvé-Perthes Disease

Area of Science:

• Pediatric Orthopedics
• Pediatric Bone Diseases

Background:

• Legg-Calvé-Perthes disease is a childhood hip condition involving femoral head osteonecrosis.
• It follows a predictable course: bone death, revascularization, resorption, and reossification.
• Outcomes vary with age at diagnosis, with younger children generally having better prognoses.

Purpose of the Study:

• To review the pathophysiology, natural history, and treatment strategies for Legg-Calvé-Perthes disease.
• To highlight challenges in demonstrating treatment superiority and areas of current research focus.

Main Methods:

• Literature review of Legg-Calvé-Perthes disease.
• Analysis of natural history, diagnostic factors, and treatment outcomes.
• Discussion of current research trends in imaging and pathophysiology.

Main Results:

• The final outcome depends on the healed femoral head's shape and acetabular congruence.
• Treatment aims to maintain femoral head containment and joint range of motion.
• Treatment strategies include non-surgical (restricted weight-bearing, exercises, bracing) and surgical (osteotomies, joint distraction) options.

Conclusions:

• Demonstrating the superiority of specific treatments is challenging due to the condition's rarity and variable course.
• Current research focuses on improved imaging predictors and understanding disease pathophysiology.
• Effective management requires preserving hip function and minimizing mechanical damage to the femoral head.