What is a synovial herniation cyst?
Synovial cysts are abnormal fluid-filled sacs in joints in the spine. These cysts are benign, which means they are not cancerous. Synovial cysts typically develop as a result of degenerative changes that occur with aging. They can be found throughout the spine, but are most common in the lumbar region (low back).
What is the femoral neck?
The femoral neck is the region of the femur bounded by the femoral head proximally and the greater and lesser trochanters distally (shown below). A femoral neck fracture is intracapsular, that is within the hip joint and beneath the fibrous joint capsule.
What is a herniation pit?
Herniation pits are small benign lucent oval lesions within the anterior aspect of the superolateral femoral neck and were first described in 1982 by Michael J. Pitt.
Why is the femoral neck so commonly injured?
Causes: How a femoral neck fracture develops In older people, the most common cause of a femoral neck fracture is a fall onto the hip joint. The injury is usually favoured by osteoporosis, a condition in which the density of the bone is reduced.
What are femoral head made of?
Femoral heads are usually made with metals or ceramic material, Co-Cr-Mo-cast alloys, stainless steel and alumina (pure or BIOLOX delta), or zirconia are the most commonly employed materials for this application.
What is femoral herniation pit?
Herniation pits are small benign oval lesions that were reported to be always lying within the super-lateral femoral neck, and were first described in 1982 by Michael J. Pitt. They are usually a unilateral incidental finding along with asymptomatic course.
What causes synovial herniation pit?
Repetitive flexion and extension of the hip and the subsequent mechanical friction of the iliofemoral ligament laterally, the overlying capsule and the iliopsoas tendon medially likely lead to herniation of soft tissue into defects within the reaction area resulting in the herniation pit.
Can you get disability for Tarlov cysts?
A June 2015 rating decision granted service connection for a Tarlov cyst, and a November 2015 rating decision granted a 40 percent rating for the Tarlov cyst with low back disability.
What are herniation pits of the femoral neck?
Herniation pits of the femoral neck are benign bony lesions or defects which are located in the predominantly located in the supero lateral aspect of the femoral neck. While there are no reported incidence rates in the paediatric population, it is said to be around 5% in the adults of an average rate.
The formation of this pit and its relation to the commonly seen femoral neck radiolucency has not been previously described. The name “herniation pit” is suggested for these lesions. MeSH terms Adult Aged
What is Pitt Pitt pit in femur?
Pitt pit refers to an oval or round lucency in the anterosuperior aspect of the femoral neck, just distal to the articular surface.
What does Pitt pit mean in anatomy?
Pitt pit. It represents a herniation of synovium or soft tissues into the bone through a cortical defect, hence the alternate name synovial herniation pit. They are usually around 5 mm in diameter but can be anywhere between 3 mm and 15 mm. They are most often an incidental finding and of no clinical significance.