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Congruence angle
13%
422/3303
Q angle
22%
735/3303
Sulcus angle
9%
289/3303
Lateral patello-femoral angle
55%
1826/3303
Patellar height index
1%
17/3303
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The lateral patello-femoral angle is the angle formed by lateral patellar facet and a line drawn across most prominent aspects of anterior portion of the trochlea on a CT scan or Sunrise view radiograph. If there is a negative patellar tilt on this measurement, the patient may benefit from a lateral release for pain relief. Lateral release is not used for instability. The sulcus angle refers to the depth of the trochlea; the congruence angle measures the relationship of the center of the patella to the center of the trochlea. These are used to assess malalignment and instability.
3.6
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