Petitov Triangle

Petit's triangle (Petit-Vernier-Hirschfeld triangle) is an integral part of the articular surfaces of one bone or part of a joint, or a separate bone that connects to the surface of another bone and makes up the protrusion of the latter. It is the junction of the epiphysis and the diaphysis. In other words, the epiphysis is a rounded bulge at the end of a long bone. It is separated from the diaphysis by the dorsum of the epiphysis, without holes or depressions. The most characteristic element is a disc-shaped protrusion located in the middle - the growth zones pass through it.

Most often, the Petite triangle is the trochanter that occurs when the head of the femur is connected to the neck of the femur. In this case, the name of the triangle is due to the name of the French surgeon Jean Louis Petit, who discovered the connection between the joint and the trochanter, and independently of him, the French anatomist, professor of anatomy at the Sorbonne Julien Vérasse, who also drew attention to the connection of the joint with a spit. During a sectional study while studying the structure of the hip joint, A. N. Veselovsky noted the deposition of phosphorus salts, which are located precisely in the front part of the trochanter and call them “