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Bipartite Patella

Hollon JH - MedPix (2007)

View Article: MedPix Image - MedPix Case

Affiliation: Uniformed Services University

ABSTRACT

Diagnosis: Bipartite Patella

History: 18 y/o man fell down the stairs. Now with right knee pain, localized to the patella. Pain is reported as constant and throbbing, increasing to 8-9/10 pain with weight bearing.

Findings: • Rounded bony fragment at superolateral aspect. • Wide well-defined radiolucent line. • Smooth, well-corticated, opposing margins. • No sharp fracture fragments or intra-articular loose bodies. • No evidence of suprapatellar effusion.

Ddx: • Bipartite patella, incidental • Bipartite patella, symptomatic • Patellar fracture • Dorsal defect of the patella

Dxhow: Imaging

Exam: Right knee with mild-moderate edema compared to left. Significant tenderness to palpation over entire knee, worse lateral to patella. Pt able to bear weight on right leg with difficulty.

No MeSH data available.


With a bipartite patella, there is a wider gap margin, the "bite" has smooth and rounded contours; and, it is smaller than the piece missing from the patella.  This is sometimes called the "Famous Amos" sign.
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MPX2224_synpic35901: With a bipartite patella, there is a wider gap margin, the "bite" has smooth and rounded contours; and, it is smaller than the piece missing from the patella. This is sometimes called the "Famous Amos" sign.


Bipartite Patella

Hollon JH - MedPix (2007)

With a bipartite patella, there is a wider gap margin, the "bite" has smooth and rounded contours; and, it is smaller than the piece missing from the patella.  This is sometimes called the "Famous Amos" sign.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=MPX2224&req=5

MPX2224_synpic35901: With a bipartite patella, there is a wider gap margin, the "bite" has smooth and rounded contours; and, it is smaller than the piece missing from the patella. This is sometimes called the "Famous Amos" sign.

View Article: MedPix Image - MedPix Case

Affiliation: Uniformed Services University

ABSTRACT

Diagnosis: Bipartite Patella

History: 18 y/o man fell down the stairs. Now with right knee pain, localized to the patella. Pain is reported as constant and throbbing, increasing to 8-9/10 pain with weight bearing.

Findings: • Rounded bony fragment at superolateral aspect. • Wide well-defined radiolucent line. • Smooth, well-corticated, opposing margins. • No sharp fracture fragments or intra-articular loose bodies. • No evidence of suprapatellar effusion.

Ddx: • Bipartite patella, incidental • Bipartite patella, symptomatic • Patellar fracture • Dorsal defect of the patella

Dxhow: Imaging

Exam: Right knee with mild-moderate edema compared to left. Significant tenderness to palpation over entire knee, worse lateral to patella. Pt able to bear weight on right leg with difficulty.

No MeSH data available.