AP Alignment
A true AP knee requires equal spacing between femoral condyles. Rotation can mimic joint narrowing. Checking alignment improves diagnostic accuracy. Proper AP positioning is essential for knee imaging.
Lateral Superimposition
A true lateral requires superimposed condyles. Misalignment reduces clarity and complicates interpretation. Using sponges improves stability. Good lateral technique enhances image quality.
Flexion Angle
A slight flexion angle improves visualization of joint spaces. Excessive flexion can distort anatomy. Clear instructions help maintain proper positioning. Flexion control supports accurate imaging.
Scatter Reduction
Tight collimation reduces scatter and improves contrast. Digital detectors benefit from reduced field size. Proper collimation enhances diagnostic clarity. Scatter control is vital for knee imaging.
Article Category
Radiography > Knee AP and Lateral Tips