Why is the periosteum important to bone healing?

Why is the periosteum important to bone healing?

Fracture healing is a complex process that involves presence of osteoprogenitor cells and growth factors. Therefore, the integrity of the fracture site surrounding tissues including periosteum is necessary in order to provide the resources for bone regeneration.

What is the function of periosteum part of the bone?

Periosteum is a very thin sheath of connective tissue that encourages proper bone growth and development and delivers blood and nutrients to the bones, and it covers most of the bones in your body.

Does periosteum assist in fracture repair?

While immobilization and surgery may facilitate healing, a fracture ultimately heals through physiological processes. The healing process is mainly determined by the periosteum (the connective tissue membrane covering the bone).

What factors promote bone healing?

The treatment factors that promote bone healing include adequate fragment apposition, weight bearing or fracture loading, and proper fracture stabilization. For most fractures, inappropriate or ineffective stabilization slows healing and may lead to nonunion.

What happens in the periosteum?

The periosteum is a complex structure composed of an outer fibrous layer that lends structural integrity and an inner cambium layer that possesses osteogenic potential. During growth and development it contributes to bone elongation and modeling, and when the bone is injured, participates in its recovery.

What does the periosteum supply bone cells with?

The outer layer of the periosteum is mostly made of elastic fibrous material, such as collagen. It also contains blood vessels and nerves. The blood vessels of the periosteum contribute to the blood supply of the body’s bones. They can pass into the dense and compact layer of bone tissue below, called the bone cortex.

What would happen to bone healing if the periosteum was damaged or destroyed?

The periosteum is a thin fibrous sheath that envelops bones. It contains blood vessels and nerves that provide nourishment and sensation to the bone. With out it our bones would not receive nutrients, would be ill protected and with out a means to repair itself, leaving us brittle, delicate and frail.

What cells are in the periosteum?

The inner layer of the periosteum contains osteoblasts (bone-producing cells) and is most prominent in fetal life and early childhood, when bone formation is at its peak.

What is the periosteum?

What is the function of the periosteum in bone fracture?

When a bone is injured or fractured, the progenitor cells of the osteogenic layer call upon reviving cell reproduction in the form of both osteoblasts and chondrocytes. During this time, the function of periosteum is to aid in the healing process.

What is periosteum mesenchymal tissue?

The presence of pluripotential mesenchymal cells in the under surface of the periosteum in combination with growth factors regularly produced or released after injury, provide this unique tissue with an important role in the healing of bone and cartilage.

What happens to the periosteum in adults?

In adults is thinner, inactive and more firmly adherent. The periosteum is a well vascularised “osteogenic organ”. 38 In adults the bone-forming potential of the periosteum is reactivated by trauma, infection and also in some cases of growing tumors.

What is the role of the periosteum in secondary callus formation?

The periosteum contributes in the secondary callus formation with cells and growth factors and should always be preserved and protected when surgery is performed for the management of a fracture. The current evidence about the cellular interactions, the stimulants and the signalling pathways related to osteogenesis and chondrogenesis is described.