Bone regeneration

Specialty of Pediatric Orthopaedic Surgery

What is bone regeneration?

Bone regeneration technique or set of surgical techniques developed for obtaining a new regenerated bone with identical characteristics to the precise bone. The goal of the procedure is to obtain a vascularized bone in continuity to the host and to present a morphology and mechanical properties similar to the bone object reconstruction in the reconstruction of traumatic or post-surgical bone loss. Practically, almost all interventions can be performed under local anesthesia.

Why is it done?

The formation of the composition is useful for restoring bone where it is needed. In cases of bone loss during an open fragment trauma, for correction of lower sizes, for correction dismetrías and deformations. All this without using bank grafts, or bone replacers. The return is at the expense of the patient's own bone presenting anatomical and physiological characteristics identical to the treated bone.

What does it consist of?

At the same time a fracture occurs or an osteotomy is performed, repair or formation of a reparative callus expense of the hematoma initially formed "in situ" starts. The bone tissue is constantly undergoing a complete renovation, its structure is continually pierced by a capillary preceded by osteoclasts (bone-destroying cells), passing is forming new bone (osteoblasts) which replaces the primitive bone, renewing it. The combination of both processes, repairing and remodeling, is the foundation for stretch callus formation of a new regenerated bone, which at the end of the process is identical to the bone to which the procedure is performed.

Preparation for bone regeneration

In the indication of bone regeneration should be considered a series of points. Exhaustive the patient about the method and time information. The regeneration process should be performed prior exclusion or eradicate active septic processes. A younger age better, age is a major factor for bone regeneration, the existence of good vascularization is desirable, certain bone segments or areas of the same bone have different capacities for the formation of regenerated bone.

Care after surgery

Once the system installed and initiated Reconstruction transportation (stretch) of bone fragments, the tip must remain in shock during the "active" phase. In this phase a new regenerated soft occurs, callus repairer stretch fracture to be protected load. Once entered the "static" phase that phase in which the "mature" and ossifies, regenerated when the degree of ossification permits the patient can support the limb. The intramedullary systems allow smaller elongations (8-9 cm.), But allow an early load. Throughout the process should be meticulously skin care inlet of the "screws" of skeletal fixation, which attach to the bone with the external device. The correct formation and evolution of the composition should radiographically checked every two or three weeks during the "active" phase and every 6-12 weeks during the "passive" phase.

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