Preoperative planning for primary total hip arthroplasty

Area of Science:

• Orthopedic Surgery
• Biomedical Engineering

Background:

• Reproducible results in hip arthroplasty depend on thorough preoperative planning.
• Surgeons use clinical and radiographic findings to visualize the surgical procedure.

Purpose of the Study:

• To emphasize the critical role of preoperative planning in hip arthroplasty.
• To outline key templating strategies for acetabular and femoral components.

Main Methods:

• Utilizing standardized radiographs with known magnification for templating.
• Placing acetabular templates relative to anatomical landmarks (ilioischial line, teardrop, acetabular margin).
• Templating femoral components to optimize limb length and offset for both cemented and cementless implants.

Main Results:

• Minimal removal of subchondral bone and restoration of the hip's center of rotation.
• Optimized acetabular coverage and reduced risk of malposition, especially with abnormalities.
• Improved hip joint biomechanics through precise limb length and femoral offset restoration.

Conclusions:

• Meticulous preoperative planning is essential for expedient and precise hip arthroplasty.
• Effective planning enables anticipation of complications and achievement of reproducible surgical outcomes.
• Strategic templating enhances functional recovery and long-term success in hip replacement surgery.