PMC8191076_01
Axial MRI of the right knee. The popliteus is visualized in the blue circle with an enlarged cross section resulting from retraction and scarring of the muscle.. Abbreviations: M, Medial; L, Lateral; A, Anterior; P, Posterior.
10.1177_2333794X211020248-fig1.jpg
PMC8191076_01_10.1177_2333794X211020248-fig1.jpg
fig1-2333794X211020248
This tear can be visualized in Figure 1 (axial MRI) as an enlarged cross section of the popliteus resulting from retraction and scarring of the muscle.
Sagittal MRI of the right knee. The posterior compartment of the knee is visualized; however, the popliteus is not seen in the popliteal hiatus (green arrow). It would normally be seen at the posterior horn of the lateral meniscus. There is edema around the soleus muscle posterior to the popliteal hiatus, deep to the lateral head of the gastrocnemius (blue arrow).. Abbreviations: S, Superior; I, Inferior; A, Anterior; P, Posterior.
10.1177_2333794X211020248-fig2.jpg
PMC8191076_01_10.1177_2333794X211020248-fig2.jpg
fig2-2333794X211020248
The posterior compartment of the knee is visualized in Figure 2 (Sagittal MRI), however, the popliteus is not seen in the popliteal hiatus due to the tear (green arrow).
Coronal MRI of the right knee. The distal popliteal muscle is visualized (blue arrows), however a gap is seen where the tendon should attach proximally at the fibular head and lateral femoral condyle (yellow circle). A few proximal tendinous fibers remain.. Abbreviations: S, Superior; I, Inferior; M, Medial; L, Lateral.
10.1177_2333794X211020248-fig3.jpg
PMC8191076_01_10.1177_2333794X211020248-fig3.jpg
fig3-2333794X211020248
The distal popliteus is visualized (blue arrows) in Figure 3 (Coronal MRI) however a gap is seen where the tendon should attach proximally at the fibular head and lateral femoral condyle (yellow circle).