Before revision: CALCULATIONS BY HAND CT-based FLUOROSCOPY +Less operative time needed +Accurate in producing reproducible quality +Little additional planning pre-operatively +Little additional learning curve +3D feedback of anatomical landmarks +Accurate in producing reproducible quality +Smaller, more manageable devices -More operative time required -Significant learning curve +Extensive long-term results available -Pre-operative planning time consuming -More operative time required -Degrees of error more apparent due to required intra-operative calculations -Ionizing radiation from X-rays pose potential health risk to patient As of yet, a computer-assisted device to calculate the true centre of the femoral neck, without the above disadvantages, has not been created.
After revision: CALCULATIONS BY HAND CT-based FLUOROSCOPY +Less operative time needed +Accurate in producing reproducible quality +Little additional planning pre-operatively +Little additional learning curve +3D feedback of anatomical landmarks +Accurate in producing reproducible quality +Smaller, more manageable devices -More operative time required -Significant learning curve +Extensive long-term results available -Pre-operative planning time consuming -More operative time required -Degrees of error more apparent due to required intra-operative calculations -Ionizing radiation from X-rays pose potential health risk to patient Ayet computer-assisted device to calculate the true centre of the femoral neck, without the above disadvantages, has not been created.