Knee arthrocentesis | J Kaiser & M Halperin | Bronx, NY

Clip 1: Transverse image of a knee effusion with the echogenic femur deep on the screen. In plane approach of needle entering the suprapatellar fossa.

Clip 2: Transverse image of a knee effusion with the echogenic femur deep on the screen. In plane image of needle exiting the suprapatellar fossa.

In plane approach of the suprapatellar fossa in a swollen knee. Most are comfortable accessing a knee joint effusion in a big swollen knee with a landmark approach. The skill of following your needle trajectory, however, crosses over to the much smaller and harder to access effusions of the wrist, ankle, elbow ect.