[Challenges of primary hip arthroplasty with high hip dislocation]

Area of Science:

• Orthopedic Surgery
• Hip Reconstruction
• Biomechanical Engineering

Background:

• High hip dislocation presents unique surgical challenges due to altered hip anatomy.
• Patients often have a shallow acetabulum, poor bone quality, and acetabular roof defects.
• Proximal femur deformities include increased antetorsion, coxa valga, and reduced offset.

Purpose of the Study:

• To restore an anatomical center of rotation, offset, and equal leg length in endoprosthetic hip care.
• To address the complexities of altered hip anatomy in patients with high hip dislocation.

Main Methods:

• Medial acetabular cup shifting is a key surgical strategy.
• Acetabular osteotomy with bone grafting may be required for acetabular roof reinforcement.
• Femoral osteotomies, medullary cavity reaming, and careful implant selection are essential.

Main Results:

• Successful restoration of hip joint biomechanics is achievable through tailored surgical approaches.
• Addressing soft tissue management and preoperative planning are critical for optimal results.

Conclusions:

• Endoprosthetic treatment of high hip dislocation necessitates a multi-faceted approach.
• Careful preoperative planning and execution of surgical techniques can overcome anatomical challenges.