Original Editor - Evan Thomas
Descriptionfemoral shaft and inserts as a flattened tendon into the quadriceps femoris tendon, which inserts into the upper border of the patella.
Lower part of the intertrochanteric line, along the spiral line to the medial lip of the linea aspera, the medial intermuscular septum and the aponeurosis of adductor magnus.
Into the medial side of the quadriceps tendon, joining with rectus femoris and the other quadriceps muscles, enveloping the patella, then by the patellar ligament into the tibial tuberosity.
A branch from the posterior division of the femoral nerve, derived from L2, 3 and 4.
Femoral artery and branches from the profunda femoris artery.
Weakness of the vastus medials is associated with patellar maltracking and patellofemoral pain. An approach to treatment attempts to restore balance between vastus medialis and lateralis, which requires strengthening of the oblique fibres of medialis, as well as assessment of the degree of dynamic supination and pronation of the foot.
VMO strengthening has become less popular approach to the treatment of anterior knee pain as the evidence supporting isolated exercises has been criticised for its poor quality. Furthermore researchers doubt the existence of VMO and have found that any quadricep exercise will similarly activate the vastus muscles. Strengthening further up the kinetic chain has been suggested as more effective approach, Khayambashi et al. found that hip strengthening was more effective for improving patellofemoral pain than knee strengthening.
It can be palpated along its entire length. Distally, the quadriceps tendon can be palpated attaching to the proximal border (base) of the patella.
- Anatomy.tv | 3D Human Anatomy | Primal Pictures [Internet]. Anatomy.tv. 2018 [cited 16 March 2018]. Available from: http://www.anatomy.tv/
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- Khayambashi K, Fallah A, Movahedi A, Bagwell J, Powers C. Posterolateral hip muscle strengthening versus quadriceps strengthening for patellofemoral pain: a comparative control trial. Archives of physical medicine and rehabilitation. 2014 May 1;95(5):900-7.