A slight ridge is sometimes seen commencing about the middle of the intertrochanteric crest, and reaching vertically downward for about 5 cm. along the back part of the body: it is called the linea quadrata (or quadrate line), and gives attachment to the Quadratus femoris and a few fibers of the Adductor magnus.

Quadrate line
Upper extremity of right femur viewed from behind and above.
Details
Identifiers
Latinlinea quadrata
Anatomical terms of bone

References

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  This article incorporates text in the public domain from page 246 of the 20th edition of Gray's Anatomy (1918)