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Greater trochanter

Other Terms: Greater trochanter of femur, Trochanter major, Grand trochanter


The greater trochanter is the knob-like lateral projection at the proximal end of the femur. It serves as the site of attachment for the gluteus minimus, gluteus medius, gluteus maximus, piriformis, obturator internus, superior and inferior gemellus, and obturator externus muscles.


The word trochanter derives from the Greek words trechein to run and trochos meaning wheel. Galen originally applied this term to the head of the femur because it resembled a wheel as it turned in the acetabular socket. The term was later transferred to the adjacent bony projections at the proximal end of the femur, probably in reference to their function as attachment sites for muscles producing rotary movements of this bone.


Trochanter major


Grand trochanter


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