fracture callus

(noun)

A fibrocartilage or fracture callus is a temporary formation of fibroblasts and chondroblasts that form at the area of a bone fracture as the bone attempts to heal itself.

Related Terms

Examples of fracture callus in the following topics:

  • Bone Repair

    • Bone healing, or fracture healing, is a proliferative physiological process in which the body facilitates the repair of a bone fracture.
    • These processes culminate in a new mass of heterogeneous tissue that is known as the fracture callus.
    • Eventually, all of the woven bone and cartilage of the original fracture callus is replaced by trabecular bone, restoring most of the bone's original strength.
    • Eventually, the fracture callus is remodeled into a new shape that closely duplicates the bone's original shape and strength.
    • This figure depicts a communitive midshaft humeral fracture with callus formation.

  • Capacity of Different Tissues for Repair

    • The physiology and process of bone healing has several phases of recovery that help the proliferation and protection of the areas surrounding fractures and dislocations.
    • Usual margins of two to three weeks are given for the reparation of most upper bodily fractures; anywhere above four weeks given for lower bodily injury.
    • The process of the entire regeneration of the bone can depend on the angle of dislocation or fracture.
    • Eventually, all of the woven bone and cartilage of the original fracture callus is replaced by trabecular bone, restoring most of the bone's original strength.
    • Eventually, the fracture callus is remodeled into a new shape that closely duplicates the bone's original shape and strength.

  • Metatarsal Fracture

    • Fractures commonly include the 5th metatarsal (a Jones fracture) or fractures of the distal third of one of the metatarsal (March fracture).
    • A Jones fracture is a fracture of the diaphysis of the fifth metatarsal of the foot .
    • If a Jones fracture fails to unite, which is a common problem with these fractures, it can become a chronic condition.
    • A March fracture, also known as fatigue fracture or stress fracture of metatarsal bone, is the fracture of the distal third of one of the metatarsals occurring because of recurrent stress, such as is sustained by soldiers during prolonged periods of marching.
    • But in civilian life, it is seldom diagnosed correctly for a week or two, when, because of lack of immobilization, there is an excessive deposit of callus (which may be palpable) around the fracture.

  • Bone Remodeling and Repair

    • Bone is remodeled through the continual replacement of old bone tissue, as well as repaired when fractured.
    • The repair tissue between the broken bone ends, the fibrocartilaginous callus, is composed of both hyaline and fibrocartilage .
    • Bony callous formation: The fibrocartilaginous callus is converted into a bony callus of spongy bone.
    • It takes about two months for the broken bone ends to be firmly joined together after the fracture.
    • The healing of a bone fracture follows a series of progressive steps: (a) A fracture hematoma forms.

  • Fractures

  • Hip Fracture

    • A hip fracture is a femoral fracture that occurs in the proximal end of the femur (the long bone running through the thigh) near the hip.
    • A hip fracture is a femoral fracture that occurs in the proximal end of the femur (the long bone running through the thigh) near the hip .
    • Hip fractures are often due to osteoporosis.
    • In the vast majority of cases, a hip fracture is a fragility fracture due to a fall or minor trauma in someone with weakened osteoporotic bone.
    • Patients with hip fractures are at high risk for future fractures, including hip, wrist, shoulder, and spine.

  • Fractures of the Vertebral Column

    • A spinal fracture (or vertebral fracture) is a fracture affecting the bones of the spinal column.
    • A spinal fracture (or vertebral fracture) is a fracture affecting the bones of the spinal column.
    • A compression fracture is a collapse of vertebra.
    • A cervical fracture is commonly called a broken neck .
    • Considerable force is needed to cause a cervical fracture.

  • Clavicle Fracture

    • A clavicle fracture is a bone fracture in the clavicle or collarbone.
    • A clavicle fracture is a bone fracture in the clavicle or collarbone .
    • Children and infants are particularly prone to clavicle fracture.
    • Newborns often present clavicle fractures following a difficult delivery.
    • The clavicle is usually fractured in the middle third of its length, which is its weakest point.

  • Fracture

    • Fracture strength, also known as breaking strength, is the stress at which a specimen fails via fracture.
    • The final recorded point is the fracture strength.
    • Bones, on the whole, do not fracture due to tension or compression.
    • Still greater forces permanently deform the object until it finally fractures.
    • Note that in this graph the slope increases just before fracture, indicating that a small increase in F is producing a large increase in L near the fracture.

  • Aging and the Skeleton

    • In osteoporosis, bone mineral density (BMD) is reduced and the integrity of bone proteins is altered, increasing the risk of fracture.
    • Osteoporosis is a disease of bones that leads to an increased risk of fracture .
    • Osteoporotic fractures are those that occur in situations where healthy people would not normally break a bone.
    • Fractures resulting from osteoporosis are regarded as fragility fractures.
    • Typical fragility fractures occur in the vertebral column, rib, hip, and wrist.