Excessive lateral pressure syndrome

Case contributed by Bálint Botz
Diagnosis almost certain

Presentation

Left-sided knee pain worsened upon exertion. Meniscal tear?

Patient Data

Age: 40 years
Gender: Female
  • Oblique horizontal tear of the dorsal horn of the medial meniscus, resultant protrusion.
  • Increased trochlear sulcal angle: 150 degree. Trochlear dysplasia: Dejour A
  • Patellar tilt increased: 21 degree - without subluxation finding suggestive of excessive lateral pressure syndrome. 
  • No facet asymmetry, TT-TG, trochlear depth, lateral trochlear inclination within normal range. 
  • Discrete joint effusion.
Annotated image

Key images showing measurements. 

Case Discussion

Increased patellar tilt without subluxation in a symptomatic patient is highly suggestive of excessive lateral pressure syndrome

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