Blumensaat line
Updates to Article Attributes
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was changed:
Blumensaat line is the line drawn along the roof of the intercondylar notch of the femur as seen on lateral radiograph of the knee joint. It can been used for:
- indicating the relative position of the patella as normally this line intersects the lower pole of the patella
- suggesting ACL injury as the normal ACL Blumensaat angle is ≤15°
- describing the course of an ACL graft (see Radiographic evaluation of anterior cruciate ligament reconstruction)
- identifying the location of the lateral femoral condyle sulcus, which should be within 10mm of the line
It may not always be straight and three types have been described 3:
- straight: ~35%
- small hill: ~20%
- large hill: ~45%
- +<li>identifying the location of the <a title="Lateral femoral notch sign (knee)" href="/articles/lateral-femoral-notch-sign-knee">lateral femoral condyle sulcus</a>, which should be within 10mm of the line</li>
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