The popliteus bursa: an indicator of subtle pathology

Area of Science:

• Orthopedics
• Radiology
• Anatomy

Background:

• The popliteus bursa's contour on double-contrast arthrography is a key indicator of knee pathology.
• Various knee disorders are associated with abnormal popliteus bursa morphology.

Purpose of the Study:

• To review the anatomy and embryology of the popliteus bursa.
• To present the spectrum of arthrographic findings related to popliteus bursa abnormalities.
• To emphasize the diagnostic significance of popliteus bursa variations.

Main Methods:

• Double-contrast arthrography was utilized to examine the popliteus bursa.
• Anatomic variants and abnormalities were analyzed.
• Arthrographic findings were correlated with known knee pathologies.

Main Results:

• Narrowing, compression, or absence of the popliteus bursa correlates with lateral meniscal tears and discoid menisci.
• Popliteus bursa absence can indicate adhesive capsulitis, prior surgery, or congenital anomalies.
• The popliteus bursa can serve as a reservoir for intraarticular loose bodies.

Conclusions:

• Abnormal popliteus bursa contour on arthrography necessitates further detailed knee examination.
• Understanding the spectrum of arthrographic findings is crucial for accurate diagnosis.
• Popliteus bursa abnormalities are significant indicators of underlying knee pathology.