The fate of hips that are conservatively treated in multiple epiphyseal dysplasia

Seung-Ju Kim1, Ashok K Ramanathan, Young-Sik Jeon

  • 1aDepartment of Orthopaedics, Hanil General Hospital bDepartment of Orthopaedic Surgery, Korea University Medical Center, Institute for Rare Diseases, Guro Hospital, Seoul, Korea.

Insights

Conservative treatment shows favorable midterm outcomes for hip deformity in multiple epiphyseal dysplasia (MED). Radiologic measurements improved, and Harris hip scores increased, indicating positive results for hip joints in MED patients.

Area of Science:

  • Orthopedics
  • Pediatric Orthopedics
  • Radiology

Background:

  • Multiple epiphyseal dysplasia (MED) is a rare genetic disorder affecting bone development, particularly in the hips.
  • Hip joint involvement in MED can lead to deformity and affect long-term function.
  • Conservative management strategies are often considered for pediatric hip conditions.

Purpose of the Study:

  • To evaluate the radiologic and clinical outcomes of conservative treatment for hip deformity in patients with multiple epiphyseal dysplasia.
  • To assess changes in key hip joint parameters over time with non-surgical management.

Main Methods:

  • Retrospective review of 40 patients diagnosed with multiple epiphyseal dysplasia.
  • Analysis of radiologic parameters including center-edge angle, femoral head coverage, acetabular angle, and acetabular depth index.
  • Clinical assessment using Harris hip scores.
  • Average follow-up duration of 7.2 years.

Main Results:

  • Conservative treatment led to significant improvements in Harris hip scores (P=0.003).
  • Radiologic measurements showed a tendency for increased center-edge angle and femoral head coverage (P=0.011, P=0.015).
  • Statistically significant differences were observed in acetabular angle and acetabular depth index between initial visits and follow-up (P=0.046, P=0.027).

Conclusions:

  • Conservative treatment offers favorable midterm outcomes for hip deformity in multiple epiphyseal dysplasia.
  • Non-surgical management can lead to positive radiologic and functional improvements in affected pediatric hip joints.