Total hip arthroplasty in dwarfism. A case report

Area of Science:

• Orthopedic Surgery
• Medical Imaging

Background:

• Hip arthritis is common in dwarfism, often secondary to hip dysplasia, requiring joint replacement at an early age.
• Total hip replacement in dwarfism patients presents unique challenges due to anatomical deformities and small bone size.

Observation:

• A case of bilateral total hip replacement in a dwarf patient is presented.
• Preoperative planning utilized a CT-based computer system to address joint deformity and bone size.
• A conical-shaped stem was selected to restore limb length and offset, reducing fracture risk.

Findings:

• CT-based preoperative planning is crucial for successful total hip replacement in dwarfism.
• Specialized implants, like conical stems, can effectively manage anatomical challenges.
• The procedure demonstrated restoration of limb length and offset with a low risk of femoral fracture.

Implications:

• Total hip replacement can be a safe and effective treatment for hip arthritis in dwarfism.
• Accurate preoperative planning is essential for optimizing outcomes and minimizing complications.
• This approach may improve joint kinematics and patient quality of life in this population.