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Gerdy's tubercle is a lateral tubercle of the tibia, located where the iliotibial tract inserts. It was named after French surgeon Pierre Nicolas Gerdy (1797–1856).. Gerdy's tubercle is a smooth facet on the lateral aspect of the upper part of the tibia, just below the knee joint and adjacent to the proximal tibio-fibular joint, where the iliotibial tract runs down the outside part of the thigh.
The iliotibial tract or iliotibial band (ITB; also known as Maissiat's band or the IT band) is a longitudinal fibrous reinforcement of the fascia lata. The action of the muscles associated with the ITB ( tensor fasciae latae and some fibers of gluteus maximus ) flex, extend, abduct, and laterally and medially rotate the hip.
The transverse plane that includes each of the tubercles (one from the left iliac tubercle and one from the right iliac tubercle) is called the transtubercular plane. The origin of the iliotibial tract is the iliac tubercle. [1] The iliac tubercle is also the widest point of the iliac crest, and lies at the level of the L5 spinous process. [2]
The iliotibial tract may be irritated where it passes over the anterior superior iliac spine in iliotibial band syndrome. [3] The line around anterior superior iliac spine is sometimes called the panty line or "bikini line". [8] It is considered to be a "discreet" location for concealing cosmetic surgery scars and ports. [9]
Structures found in the posterolateral corner include the tibia, fibula, lateral femur, iliotibial band (IT band), the long and short heads of the biceps femoris tendon, the fibular (lateral) collateral ligament (FCL), the popliteus tendon, the popliteofibular ligament, the lateral gastrocnemius tendon, and the fabellofibular ligament.
Just inferolateral to the pubic tubercle the fascia extends downwards forming an arched (falciform) margin of the lateral boundary of the opening. It is covered by a thin perforated part of the superficial fascia called the fascia cribrosa which is pierced by the great saphenous vein, the 3 superficial branches of the femoral artery (except superficial circumflex iliac artery, which pierces ...
Behind the ASIS, it divides into an outer and inner lip separated by the intermediate zone. The outer lip bulges laterally into the iliac tubercle. [1] Palpable in its entire length, the crest is convex superiorly but is sinuously curved, being concave inward in front, concave outward behind. [2] It is thinner at the center than at the extremities.
The iliac tuberosity is part of the anatomy of the ilium portion of the hip bone.Behind the iliac fossa is a rough surface, divided into two portions, an anterior and a posterior. [1]