Patellar tendon tear

Case contributed by Stefan Tigges
Diagnosis certain

Presentation

Trauma, inability to extend the knee.

Patient Data

Age: 50 years
Gender: Male
x-ray

Superiorly displaced patella (patella alta) with wavy appearing patellar tendon suggests patellar tendon tear.

mri

Complete tear of the proximal patellar tendon with superior displacement of the patella. Small lateral meniscus radial free edge tear.

Case Discussion

A classic example of a patellar tendon tear clearly visible on the X-ray because of the superior displacement of the patella confirmed on MRI.

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