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Citation, DOI and article data. Knipe, H. Gerdy tubercle. Reference article, Radiopaedia. Setting: Academic laboratory center. Materials and methods: Twenty-four adult human cadaver lower extremities as 12 matched pairs were used. Systematic identification and measurement from the point of intersection of a line drawn between 2 corners of a box created using the tibial tubercle, inferior pole of the patella, and the fibula head were performed and recorded.
Main outcome measurement: Mean distance from cutaneous point of intersection to Gerdy's tubercle upon dissection. Results: The mean distance from the point of intersection to Gerdy's tubercle was 2. Also known as the iliotibial tract or IT band, it is a longitudinal fibrous thickening of the fascia lata. The iliotibial band starts at the iliac crest of the pelvis , or, more specifically, at the crest's iliac tubercle, which is the structure's widest point. The iliotibial band travels downward at the thigh's outside part to the lateral area of the tibia's upper extremity called the lateral condyle.
The iliotibial band is responsible for stabilizing and extending the knee, as well as giving it flexion. An alternative term, Maissiat's band, is named for the person who discovered it, French anatomist Jacques Maissiat. The clinical significance of Gerdy's tubercle concerns the tibia's big oblong-shaped elevation. Known as tibial tuberosity, it is located at the tibia's proximal end, which is where the lateral and medial portions of the bone's upper extremity end.
Also, it marks the place where the ligament of the patella , or kneecap, attaches.
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