Gluteal tuberosity

Anatomical feature of the femur

The gluteal tuberosity is a roughened area on the posterior surface of the femur, which serves as an attachment site for the gluteus maximus muscle. It is located on the upper part of the shaft of the femur, just below the greater trochanter.

Diagram of the femur showing the gluteal tuberosity.

Anatomical location

The gluteal tuberosity is found on the posterior aspect of the femur. It is a continuation of the linea aspera, a prominent ridge on the posterior surface of the femur. The gluteal tuberosity extends from the base of the greater trochanter downwards and laterally.

Function

The primary function of the gluteal tuberosity is to provide an attachment point for the gluteus maximus muscle. The gluteus maximus is one of the major muscles responsible for the movement of the hip and thigh, particularly in actions such as climbing, running, and rising from a sitting position.

Clinical significance

In some individuals, the gluteal tuberosity may be more pronounced, forming a structure known as the "third trochanter." This anatomical variation is generally asymptomatic but can be of interest in orthopedic and anatomical studies.

Related structures

The gluteal tuberosity is closely associated with several other anatomical features of the femur, including:

• The greater trochanter, which is a large, prominent projection on the proximal femur.
• The linea aspera, a ridge that runs down the posterior surface of the femur.
• The lesser trochanter, a smaller projection located medially and inferiorly to the greater trochanter.

Related pages

• Femur
• Gluteus maximus
• Trochanter
• Linea aspera