What does cortical irregularities mean?

What does cortical irregularities mean?

An abnormal irregularity of cortical bone. [ from HPO]

What is a tug lesion of femur?

A tug lesion in musculoskeletal imaging is a term given to describe a bony traction reaction at a muscle attachment site likened to that of the “tug effect. They are benign and are placed as do not touch lesions. Notable sites include: distal femur: cortical desmoid.

What are tug lesions?

A tug lesion is a benign excrescence at the insertion of tendons or skeletal muscles at the adjacent bone. A tug lesion at the attachment of the soleus muscle at the tibia and fibula is a characteristic example [1].

What does the cortical bone do?

Cortical bone is the dense outer surface of bone that forms a protective layer around the internal cavity. This type of bone also known as compact bone makes up nearly 80% of skeletal mass and is imperative to body structure and weight bearing because of its high resistance to bending and torsion.

What makes up cortical bone?

A Cortical and Cancellous Bone Cortical bone is a dense tissue that contains less than 10% soft tissue. Cancellous or spongy bone is made up of trabecules shaped as plates or rods interspersed between bone marrow that represents more than 75% of the cancellous bone volume.

What causes a tug lesion?

Cortical desmoid (also called tug lesion or periosteal desmoid) is an irregularity of the distal femoral cortex caused by repetitive stress at the attachment of the adductor magnus aponeurosis. It is most commonly seen in adolescents and is usually asymptomatic. It is a benign and self-limiting lesion.

What is a benign cortical desmoid?

What is fibrous cortical defect?

Category: Bone and Joint. To begin with, the fibrous cortical defect is a benign fibrous tumour occurring, in the cortex of the metaphysis, only in the long bones of children and young adolescents. The term “fibrous cortical defects” has been given, as these lesions are composed of fibrous tissue.

Is femur a cortical bone?

However, the thin cortical shell plays a substantial role. The hip is considered a cortical bone site, but both cortical and trabecular bone contribute to femoral strength, the contribution of the cortical bone being higher in femurs with lower trabecular bone density [2].

Which bone is most superior?

Anatomical terms of bone In anatomy, the atlas (C1) is the most superior (first) cervical vertebra of the spine and is located in the neck. It is named for Atlas of Greek mythology because, just as Atlas supported the globe, it supports the entire head.

Is cortical bone spongy?

Cortical bone is a dense tissue that contains less than 10% soft tissue. Cancellous or spongy bone is made up of trabecules shaped as plates or rods interspersed between bone marrow that represents more than 75% of the cancellous bone volume.

What causes cortical desmoid?