Structure/Morphology
The iliotibial tract (iliotibial band or bandelette of Maissiat) is a long, strong band of connective tissue that attaches the iliac crest to the tibia. It is a thickened region of the fascia lata and is found along the lateral aspect of the thigh.
The proximal end of the iliotibial tract arises from the anterolateral portion of the iliac crest. It consists of superficial and deep layers, which converge to form a single band after they travel distal to the tensor fasciae latae muscle.
At its distal end, the iliotibial tract attaches to the tubercle of iliotibial tract, which is located on the lateral condyle of the tibia.
Related parts of the anatomy
Anatomical Relations
The iliotibial tract is located lateral to the gluteus medius and vastus lateralis muscles. The tensor fasciae latae muscle is located in between, and inserts onto, the superficial and deep layers of the iliotibial tract. The superior part and superficial half of the inferior part of the gluteus maximus muscle also insert onto the iliotibial tract.
Function
The iliotibial tract attaches the tensor fasciae latae and gluteus maximus muscles to the iliotibial tubercle of the tibia. This insertion site allows the tensor fasciae latae and gluteus maximus muscles to help stabilize the extended knee joint.
List of Clinical Correlates
- Iliotibial band syndrome
