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The popliteus tendon runs beneath the lateral collateral ligament and tendon of biceps femoris. The muscle also runs above the lateral meniscus but has no connection with the meniscus in 45% of the cases, but has strong connection with it in 17.5% of the cases. Therefore, popliteus muscle is extrasynovial, extra-articular, and intracapsular. [2]
The popliteal fossa (also referred to as hough or kneepit in analogy to the cubital fossa) is a shallow depression located at the back of the knee joint.The bones of the popliteal fossa are the femur and the tibia.
Tibialis posterior muscle: Interosseous membrane; posterior surface of tibia inferior to soleal line; posterior surface of fibula: Tuberosity of navicular, cuneiform, cuboid, and sustentaculum tali of calcaneus; bases of 2nd, 3rd, and 4th metatarsals
The common fibular nerve is the smaller terminal branch of the sciatic nerve. The common fibular nerve has root values of L4, L5, S1, and S2. It arises from the superior angle of the popliteal fossa and extends to the lateral angle of the popliteal fossa, along the medial border of the biceps femoris.
The oblique popliteal ligament is formed as a lateral expansion of the tendon of the semimembranosus muscle [2] and represents one of the muscle's five insertions. [citation needed] The ligament blends with the posterior portion of the knee joint capsule. [2] It exhibits a large opening through which nerves and vessels pass. [3]
The popliteal vein is formed by the junction of the venae comitantes of the anterior tibial vein and the posterior tibial vein at the lower border of the popliteus muscle. It travels on the medial side of the popliteal artery. [1] It is superficial to the popliteal artery. [2]
The soleal line marks the lower limit of the insertion of the popliteus muscle. [2] It is the attachment of the fascia covering this muscle. It is the origin of part of soleus muscle (along with a triangular area above it), [ 3 ] flexor digitorum longus muscle , and tibialis posterior muscle .
The anterior tibial artery is a branch of the popliteal artery. [1] It originates at the distal end of the popliteus muscle posterior to the tibia. The artery typically passes anterior to the popliteus muscle prior to passing between the tibia and fibula through an oval opening at the superior aspect of the interosseus membrane.