Bilateral total hip replacement in osteogenesis imperfecta with hyperplastic callus.

Area of Science:

• Orthopedic Surgery
• Genetics
• Rheumatology

Background:

• Osteogenesis imperfecta (OI) is a rare inherited connective tissue disorder.
• OI is characterized by bone fragility, leading to recurrent fractures, nonunion, malunion, and deformities.
• Hip osteoarthritis and femoral deformities from hyperplastic callus can complicate joint replacement in OI patients.

Observation:

• A patient with osteogenesis imperfecta presented with bilateral hip osteoarthritis and significant femoral deformity due to hyperplastic callus formation.
• Standard hip replacement implants were unsuitable due to the altered femoral anatomy.

Findings:

• Bilateral hip replacement was successfully performed.
• The procedure utilized long femoral allografts combined with cemented femoral stems.
• This technique addressed the complex anatomy caused by hyperplastic callus.

Implications:

• This surgical approach offers a viable solution for complex hip replacements in osteogenesis imperfecta patients.
• The use of allografts and cemented stems can overcome challenges posed by bone deformities in OI.
• Further research into optimal surgical techniques for OI-related joint complications is warranted.