A branch of the femoral nerve supplying the articularis genu muscle, which pulls the suprapatellar pouch superiorly during knee extension. The nerve to articularis genu typically arises from the nerve to vastus intermedius.
The nerve to articularis genu is relevant in understanding suprapatellar pouch function and in anterior knee surgery where the articularis genu is reflected during quadriceps mechanism repair. Denervation produces loss of suprapatellar pouch retraction, contributing to patellofemoral adhesions after anterior knee surgery. It is assessed in comprehensive femoral nerve EMG studies to localise the level of femoral nerve injury.
Failure of suprapatellar pouch retraction from articularis genu denervation after anterior knee surgery or femoral nerve injury, contributing to patellofemoral stiffness and quadriceps shortening that limits knee flexion.
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