Tag Archives: patella

Knee Lateral
4
Feb

Overview

The lateral knee radiograph profiles the femorotibial joint patella and soft tissues to assess effusion and fractures. The knee is flexed approximately 20 to 30 degrees for optimal visualization. This view is essential for trauma and preoperative evaluation.

Technique

Position the patient in true lateral with femoral condyles superimposed and the knee flexed. Center the detector to the joint and include the distal femur and proximal tibia. Use appropriate exposure and immobilize the limb.

Clinical Indications

Lateral knee is indicated for trauma suspected patellar fracture and evaluation of joint effusion. It complements AP and skyline views for comprehensive assessment. MRI is used for soft tissue evaluation when indicated.

Image Assessment

Evaluate patellar position and trochlear groove alignment and inspect for cortical disruption. Assess joint effusion and soft tissue swelling. Document findings relevant to orthopedic management.

Knee Sunrise Skyline
4
Feb

Overview

The sunrise or skyline view images the patellofemoral joint with the knee flexed to visualize the patellar surface and trochlea. It is useful for detecting patellar subluxation and chondral lesions. Proper flexion angle optimizes visualization of the joint surface.

Technique

Flex the knee to the required angle and center the detector to the patella with the beam tangential to the patellofemoral joint. Use a small focal spot and immobilize the limb to reduce motion. Adjust exposure for the increased soft tissue thickness.

Clinical Indications

Sunrise view is indicated for anterior knee pain suspected patellar instability and chondral injury. It complements AP and lateral views for comprehensive knee assessment. MRI provides detailed cartilage evaluation when needed.

Image Assessment

Assess patellar alignment trochlear morphology and joint space narrowing. Look for osteochondral fragments and subluxation. Report findings relevant to surgical planning and rehabilitation.