[Study of cotyloid anteversion by coxometric measurement]

Area of Science:

• Orthopedics
• Radiology
• Biomedical Engineering

Background:

• Hip dysplasia diagnosis and prognosis are crucial for patient outcomes.
• Total hip arthroplasty requires precise pre-operative planning.
• Existing coxometric evaluations offer some measurements but may lack comprehensive data.

Purpose of the Study:

• To demonstrate the utility of a coxometric protractor for comprehensive hip angle measurement on a single AP X-ray.
• To validate the calculation of inclination angle, acetabular anteversion, and anterior roof angle using this tool.
• To highlight the coxometric evaluation's role in guiding surgical decisions for hip conditions.

Main Methods:

• Utilizing a coxometric protractor overlaid on hip anteroposterior (AP) X-rays.
• Measuring specific angles including internal/external roof, acetabular roof obliquity, and femoral neck-shaft angle.
• Calculating inclination angle, acetabular anteversion, and anterior roof angle from the same X-ray view.

Main Results:

• The coxometric protractor facilitates accurate measurement of multiple critical hip angles from a single AP X-ray.
• The study confirms the ability to derive inclination, acetabular anteversion, and anterior roof angles.
• This comprehensive measurement approach provides enhanced pre-operative information.

Conclusions:

• Coxometric evaluation is a valuable tool for hip dysplasia diagnosis and prognosis.
• The coxometric protractor offers a standardized method for obtaining essential measurements for total hip arthroplasty.
• Accurate angle measurements improve surgical planning and potentially patient outcomes.