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The gastrocnemius muscle is prone to spasms, which are painful, involuntary contractions of the muscle that may last several minutes. [5] A severe ankle dorsiflexion force may result in a Medial Gastrocnemius Strain (MGS) injury of the muscle, commonly referred to as a "torn" or "strained" calf muscle, which is acutely painful and disabling. [6]
Baker's cysts arise between the tendons of the medial head of the gastrocnemius and the semimembranosus muscles. They are posterior to the medial femoral condyle . The synovial sac of the knee joint can, under certain circumstances, produce a posterior bulge, into the popliteal space , the space behind the knee.
Rarely, intraosseous ganglion cysts occur, sometimes in combination with a cyst in the overlying soft tissue. [6] [16] Rare cases of intramuscular ganglion cysts in the gastrocnemius muscle of the calf have been reported. [17] [18] It is possible for a cyst to be considerably displaced
Pseudothrombophlebitis is not the only possible consequence of a popliteal cyst. The existence of a large popliteal cyst can be a risk factor for deep vein thrombosis. Furthermore, a ruptured popliteal cyst may cause compartment syndrome in the calf or even the thigh. [citation needed]
Some unicameral bone cysts may spontaneously resolve without medical intervention. Specific treatments are determined based on the size of the cyst, the strength of the bone, medical history, extent of the disease, activity level, symptoms an individual is experiencing, and tolerance for specific medications, procedures, or therapies. [3]
Biarticular muscles can also transfer mechanical power between distal and proximal joints, though the direction and magnitude of this transfer varies with anatomy, muscle activity level, and joint angles. This is a crucial consideration when analyzing an organism's movement using inverse dynamics.
Medial gastrocnemius perforator, draining into the gastrocnemius vein; Fibular perforators, usually two, one superior near the lateral aspect of the knee and one inferior at the lateral aspect of the ankle; When the valves of perforator veins become incompetent they can cause venous reflux when the muscles contract.
The gastrocnemius also flexes the leg at the knee. Both muscles are innervated by the tibial nerve. [14] Because the fibres of the tendon spiral about 90 degrees, fibres from the gastrocnemius tend to attach to the outer part of the bone, whereas fibres from the soleus tend to attach closer to the midline. [11]