Presentation
Persistent anterior knee pain since long time.
Patient Data
Age: 22 years.
Gender: Male
From the case:
Patella alta - high riding patella
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The patella is seen higher in position (high riding).
From the case:
Patella alta - high riding patella
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Abnormally high position of the patella that is denoting high riding patella.
Abnormal patellar tendon L / greatest diagonal L of patella = 1.65 = suggesting patella alta. (ratio must not exceed 1.2). Evidence of retro and infrapatellar soft tissue edema pattern is seen.
Moderate amount of synovial joint effusion.
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An annotated image to demonstarte Insall-Salvati ratio which is abnormal denoting high riding patella.
Case Discussion
The case is considered as idiopathic high riding patella as confirmed by Insall-Salvati ratio.
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