Anatomy
Origin:
Lateral aspect of anterior superior iliac spine, anterior external lip of the iliac crest and the deep surface of the fasciae latae.
Insertion:
Between two layers of the iliotibial band of the fascia latae ending around the mid thigh.
Key Relations:
-Most superficial of the anterior thigh muscles.
-Lies anterior to gluteus minimus and the anterior part of gluteus medius.
Functions
-Flexes, abducts and medially rotates the thigh at the hip joint.
-Assists in extension of knee joint.
-Stabilises the trunk on the thigh.
Supply
Nerve Supply:
Superior gluteal nerve (L4, L5).
Blood Supply:
-Superior gluteal arteries
-Lateral circumflex femoral artery.
Clinical
A flap is a segment of tissue transplanted to a defect while maintaining its own and/or original blood supply. Tensor fasciae latae is ideal for use as a muscular flap as its actions on the hip may be performed by other muscles. An example of this procedure is when the muscle and overlying fat and skin are removed and used in reconstructing the breast after mastectomy. Reconstruction using a flap involves no foreign materials, and often has a longer life span than alternative methods.
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