Patella - Lateral

Radiographic Positioning

Adult

Other related pages of interest Applied Radiography Radiographic Anatomy Radiographic Protocols

Name of projection	Patella - Lateral (mediolateral)
Area Covered	Patella, patellofemoral joint and tibiofemoral joints
Pathology shown	Patella fractures, dislocation, abnormalities of patellofemoral and tibiofemoral joints
Radiographic Anatomy	Knee Radiographic Anatomy
IR Size & Orientation	18 x 24cm Portrait
Film / Screen Combination	Detail (CR and DR as recommended by manufacturer)
Bucky / Grid	No
Filter	No
Exposure	60 kVp 8 mAs
FFD / SID	100cm
Central Ray	CR directed to the midpatellofemoral joint Perpendicular to IR
Collimation	Four sides of collimation Closely collimate to the area of patella and knee joint
Markers	Distal and Lateral Marker orientation AP
Shielding	Gonadal (check your department's policy guidelines)
Respiration	Not applicable
Positioning	Patient in lateral recumbent position on the X-ray table with affected side down Cushion for head Provide support for opposite knee Adjust rotation of body and leg until knee is in a true lateral position Flex knee 5° to 10° (additional flexion may separate fracture fragment) Align and centre long axis of patella to centre line of IR CR directed to the midpatellofemoral joint, perpendicular to IR
Critique PACEMAN	Positioning Area Covered Collimation Exposure
Special Notes