case_images: PMC9979914_01
case_images: Post-injurylong-axis ultrasound image of the Rectus Femoris (RF) (5-12 MHz linear transducer). The proximal and distal aspect of the rectus femoris exhibits a normal hyperechoic appearance, but a substantial hypoechoic area is noted (arrowheads), 1.9 cm which is suggestive of fluid and a full thickness mid-tendon tear of the rectus femoris. Also, mild hypoechoic signaling indicating fluid in the medial and lateral muscles indicating a strain with mild hypoechoic signaling deep indicating strain of vastus intermedius. Positioning of the ultrasound probe is seen in the bottom right-hand corner of the image. Abbreviations: P: proximal; D: distal; RF: rectus femoris; VL: vastus lateralis; VM: vastus medialis; VI vastus intermedius.
case_images: pocusj-06-14626-g001.jpg
case_images: PMC9979914_01_pocusj-06-14626-g001.jpg
case_images: pocusj-06-14626-g001
case_images: Based upon these clinical findings, ultrasound imaging was performed at point-of-care showing full thickness mid-tendon tear of the rectus femoris (see Figures 1 & 2).The patient was referred to an orthopedic surgeon, who performed MRI imaging (see Figure 3), confirming an avulsion of the superficial aspect of the rectus femoris from its patellar attachment and retracted proximally 1.9 cm and a complete tear.
case_images: Post-injury short-axis ultrasound image of the Rectus Femoris. Disruption of the musculotendinous fibers of the rectus femoris can be visualized. A large hypoechoic gap in the rectus femoris is present, denoting the presence of significant fluid (arrows). Deeper areas of hypoechoic signaling indicating straining of the vastus medialis and lateralis and intermedius. Positioning of the ultrasound probe is seen in the bottom right-hand corner of the image. Abbreviations: F: femur; VL: vastus lateralis; VM: vastus medialis; VI vastus intermedius.
case_images: pocusj-06-14626-g002.jpg
case_images: PMC9979914_01_pocusj-06-14626-g002.jpg
case_images: pocusj-06-14626-g002
case_images: Based upon these clinical findings, ultrasound imaging was performed at point-of-care showing full thickness mid-tendon tear of the rectus femoris (see Figures 1 & 2).The patient was referred to an orthopedic surgeon, who performed MRI imaging (see Figure 3), confirming an avulsion of the superficial aspect of the rectus femoris from its patellar attachment and retracted proximally 1.9 cm and a complete tear.
case_images: Post-injury MRI w/o contrast showing a portion of the quadriceps complex completely torn. The superficial aspect of the rectus femoris is avulsed from its patellar attachment and retracted proximally. Thinner smaller components of the vastus lateralis, vastus intermedius and vastus medialis remain intact. Arrowheads denote the torn quadriceps complex.
case_images: pocusj-06-14626-g003.jpg
case_images: PMC9979914_01_pocusj-06-14626-g003.jpg
case_images: pocusj-06-14626-g003
case_images: Based upon these clinical findings, ultrasound imaging was performed at point-of-care showing full thickness mid-tendon tear of the rectus femoris (see Figures 1 & 2).The patient was referred to an orthopedic surgeon, who performed MRI imaging (see Figure 3), confirming an avulsion of the superficial aspect of the rectus femoris from its patellar attachment and retracted proximally 1.9 cm and a complete tear.