Modality: X-ray (Lateral)

- “ In 30 degree flexed knee: Insall-Salvati index: normal mean is 1; ratio >1.2 is diagnostic of patella alta and <0.8 is diagnostic of patella baja...”

Used in the following article:

  • Insall-Salvati ratio - “ The Insall-Salvati ratio or index is the ratio of the patella tendon length (TL) to the length of the patella (PL).  Insall-Salvati ratio This c...”
  • Caton-Deschamps index (knee) - “ The Caton-Deschamps index is a ratio that is used in everyday practice as well as in research to measure patellar height and allows the diagnosis ...”

View full size version of Insall-Salvati and modified Insall-Salvati indices

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