This document discusses MRI of injuries to the rectus femoris muscle. It begins with imaging technique recommendations, including using T1, T2, STIR and GRE sequences. It then reviews the anatomy of the rectus femoris. Common injuries in the skeletally immature include apophysitis and avulsion injuries. In skeletally mature patients, injuries often occur at the myotendinous junction or myofascial junction. Various injury patterns like direct tears, indirect tears and intra-muscular degloving injuries are depicted. Potential sequelae from injuries like scarring, heterotopic ossification and subspine impingement are also reviewed.
Thin arrow indirect tendon
Thick arrow direct tendon
Thin arrow indirect tendon
Thick arrow direct tendon
Thin arrow indirect tendon
Thick arrow direct tendon
partial tear direct head LM
3a direct and indirect head tears
3b direct and indirect head tears
3c partial of direct
3d total of indirect
Fig. 8. (a) Axial fat suppressed T2-weighted image of a female professional European football (soccer) goalie shows myofascial disruption along the posterolateral margin of
the middle third of the rectus femoris (thick white arrow). Fluid is seen tracking along the fascia and the belly of the muscle (open arrows). This injury was sustained while
kicking the ball. There is also evidence of a small scar from prior myotendinous injury (long thin arrow). (b) Axial T1 weighted (b1) and T2 weighted (b2) images of another
professional European football (soccer) player show a posterior myofascial injury (arrow) with fluid accumulating between the posterior muscle fibers and the fascia. This
injury was sustained during a sprint.
Fig. 8. (a) Axial fat suppressed T2-weighted image of a female professional European football (soccer) goalie shows myofascial disruption along the posterolateral margin of
the middle third of the rectus femoris (thick white arrow). Fluid is seen tracking along the fascia and the belly of the muscle (open arrows). This injury was sustained while
kicking the ball. There is also evidence of a small scar from prior myotendinous injury (long thin arrow). (b) Axial T1 weighted (b1) and T2 weighted (b2) images of another
professional European football (soccer) player show a posterior myofascial injury (arrow) with fluid accumulating between the posterior muscle fibers and the fascia. This
injury was sustained during a sprint.
Fig. 6. (a and b) Axial fat suppressed T2-weighted images in two different young semi-professional European football (soccer) players demonstrate an injury to the direct
tendon of the rectus femoris (wide arrow) with associated perifascial fluid (thin arrow) predominantly along the anterior aspect of the rectus femoris muscle.
Fig. 6. (a and b) Axial fat suppressed T2-weighted images in two different young semi-professional European football (soccer) players demonstrate an injury to the direct
tendon of the rectus femoris (wide arrow) with associated perifascial fluid (thin arrow) predominantly along the anterior aspect of the rectus femoris muscle.