Changes in the lateral pillar classification in Perthes' disease

Area of Science:

• Orthopedics
• Pediatric Orthopedics
• Radiology

Background:

• Perthes' disease affects the hip joint in children.
• Lateral pillar classification is used to assess disease severity.
• Understanding factors influencing changes is crucial for treatment.

Purpose of the Study:

• To investigate the correlation between lateral pillar grade changes and influencing factors in Perthes' disease.
• To identify patient subgroups at higher risk for radiographic changes.

Main Methods:

• Retrospective review of 102 patients diagnosed with Perthes' disease.
• Analysis of radiographic changes in the lateral pillar over time.
• Comparison of change rates across different treatment groups and disease severity.

Main Results:

• Radiographic changes were observed in 31% of hips (32 out of 102).
• Significant differences in change percentages were noted between treatment groups.
• Extensive disease involvement was strongly associated with a higher incidence of changes.
• Age at onset did not correlate with the occurrence of changes.

Conclusions:

• Treatment strategies should aim to reduce mechanical forces on the capital femoral epiphysis, especially in extensive Perthes' disease.
• Interventions should be considered regardless of patient age at onset for extensive cases.
• Further research into optimizing mechanical unloading is warranted.