Acute Patellar Subluxation: MRI Findings

Acute Patellar Subluxation: MRI Findings
Published on, 28 June, 2023. Answered by Dr. MOHAMED AWADALKARIM and Verified by Dr.Galen Team
Patient Question

Hello Doctor,

 

My right knee MRI findings are as follows:

 

1.There is a large area of contusional marrow edema in the anterior part of the lateral femoral condyle, indicating acute patellar subluxation.

2.Another smaller patch of marrow edema is present in the inferomedial pole of the patella.

3.There is subtle injury to the underlying patellar cartilage and grade I injury to the medial patellofemoral compartment.

4.The rest of the bones in the knee joint show normal signal intensity.

5.The medial and lateral meniscus show normal signal intensity and morphology.

6.The anterior and posterior cruciate ligaments appear normal in signal intensity and morphology.

7.Mild fluid is noted in the knee joint, and the patellar and quadriceps tendons are normal.

Can you help me understand these findings and what treatment options might be recommended for my condition?

Hello,

Thank you for reaching out to Dr. Galen. Please find the below response to your query.

 

This MRI finding implies that your kneecap has moved forcefully from its original location but has returned to its position. This force can result in damage to the cartilage covering the bone and a tear in the internal ligament that prevents your kneecap from dislocating. However, the ligament damage is classified as grade 1, which is the least severe. It can heal on its own, but you should allow a period of rest, use a knee cap immobilizer, and take analgesics for pain relief.

 

Thanks


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About Dr. MOHAMED AWADALKARIM

Dr. MOHAMED AWADALKARIM

Orthopedic Surgeon / Orthopedist


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