1-It is a clinical diagnosis.
2-Tendon will be corrugated and interrupted.
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young male hand pain and weakness while work out in Gymnasium. Patient
heard a snapping sound from elbow and reported to nearby doctor who
advised MRI after which patient was given above elbow slab. MRI was
reported as distal biceps rupture with inflammation surrounding area. |
3-FABS position:
-Here the patient lies prone with the affected arm raised beside his head and the elbow is flexed passing above the head.
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Localizer
MR image with lines shows slice positioning for flexed abducted
supinated view. Notice sections, sagittal to long axis of body but
coronal to anatomy at elbow. Ideal angulation is planned along distal
biceps brachii tendon, but often, as here, this structure is not clearly
visible on localizer images. In this case, sections nearly
perpendicular to radius provide reasonable and reproducible imaging
plane.
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Photograph
shows patient positioning for flexed abducted supinated view: patient
is positioned prone on MRI table with elbow in flexed abducted supinated
view position. Notice position of arm, flexed at elbow and abducted at
shoulder with supinated forearm, thumb up.
In
general, it was preferable for the patient to lie prone for these
views. The shoulder was abducted 180°, with the arm beside the head. The
elbow was flexed to 90°, with the forearm supinated, thumb up, and a
shoulder phased array coil was placed around the elbow . The position is
referred to in this article as the flexed abducted supinated view, but
usually in our practice it is termed the “FABS view,” meaning the flexed
elbow with the shoulder abducted and the forearm in supination view.
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Fast spin-echo proton-density–weighted MR image (repetition time
msec/echo time msec = 3000/34) obtained with the patient
in the FABS position shows a normal distal
biceps tendon (curved arrow), the musculotendinous junction (straight
arrow), and
the radial tuberosity (arrowhead).
Fat-suppressed fast spin-echo proton-density–weighted MR image (3000/45) demonstrates a minor partial tear of the distal
biceps tendon (arrow) with a trace of peritendinous fluid (arrowhead).
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