Annotated normal tangential projection (knee)
Normal adult knee.
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- external cortical surface of patella
- medial facet of patella
- lateral facet of patella
- median patellar ridge
- femoropatellar joint
- medial trochlear ridge
- trochlear groove
- lateral trochlear ridge
Normal knee annotated tangential projection (also known as skyline projection, sunrise view, sunset view, patellofemoral joint view, or Settegast’s view.)
- Funke T: Radiography of the knee joint. Med Radiogr Photogr 36:1, 1960.
- Hughston JC: Subluxation of the patella. J Bone Joint Surg 50A:1, 1968.
- Laurin CA, Dussaulty R, Levesque HP: The tangential x-ray investigation of the patellofemoral joint: X-ray technique, diagnostic criteria and their interpretation. Clin Orthop 144:16, 1979.