Blumensaat's line
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Blumensaat's line is a line which corresponds to the roof of the intercondylar fossa of femur as seen on a lateral radiograph of the knee joint.[1] The angle at which this line appears on the radiograph can be used to determine the position of the patella or diagnose an ACL injury.[2]
Clinical use
[edit | edit source]On a normal radiograph, the line intersects the inferior pole of the patella, and so can be useful in diagnosing a broken femur as well as a patellar tendon rupture.
It also helps to define the "Schottle point" intra-operatively for reconstruction of the medial patello-femoral ligament (MPFL).[3]
It may also be used to describe the course of an ACL graft.
References
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