What is synovial herniation pit?
Pitt pit refers to an oval or round lucency in the anterosuperior aspect of the femoral neck, just distal to the articular surface. It represents a herniation of synovium or soft tissues into the bone through a cortical defect, hence the alternate name synovial herniation pit.
What causes a 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.
What are herniation pits?
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 is cam type FAI?
Cam-type femoroacetabular impingement (FAI) is a known cause of groin pain and a condition that can give rise to osteoarthritis of the hip (1). Patients suffering from this condition are mainly young and experience pain when the hip is moved through internal rotation and adduction at 90° of hip flexion.
Can a synovial cyst cause hip pain?
Synovial cysts of the hip are relatively rare lesions comparing to other joints. Patients are usually asymptomatic, but in some cases symptoms such as pain and/or compression of vessels or nerve could be present.
Does FAI lead to hip replacement?
FAI is considered a possible risk factor for hip-joint arthritis. Having FAI increases the chance that you will ultimately need to have a total hip replacement surgery, particularly if you have a cam lesion—a bone spur on the ball of the ball-and-socket hip joint.
Do synovial cysts get bigger?
Synovial cysts are benign (non-cancerous). If they remain small, they will not cause pain and do not require treatment. When a synovial cyst becomes larger, though, it may press against lumbar spinal nerves and cause severe pain that requires treatment.
Where is the synovial herniation pit located?
Synovial herniation pit A synovial herniation pit, also known as “Pitt’s pit,” is commonly encountered on radiography as a well-circumscribed round or oval lucency with a surrounding narrow zone of sclerosis located in the subchondral or subcortical anterosuperior femoral neck.
What kind of MRI is needed for herniation pit?
MRI was performed following failure of conservative management and demonstrated a small herniation pit with surrounding bone oedema. Following flouroscopic intra-articular steroid injection there was complete resolution of the patient’s symptoms and the bone oedema surrounding the herniation pit.
What kind of herniation is a Pitt pit?
Pitt pit refers to an oval or round lucency in the anterosuperior aspect of the femoral neck, just distal to the articular surface. It represents a herniation of synovium or soft tissues into the bone through a cortical defect, hence the alternate name synovial herniation pit.
Are there any surgical interventions for synovial pits?
Synovial pits may have atypical clinical and radiological course, and this can raise concerns especially with symptomatic hip that may encourage surgical interventions. However, due to benign course of these lesions, we do not recommend any surgical intervention for such lesions. Synovial herniation pits, herniation pits, cortical defect