Calcify - the formation of calcium phosphate, the dense hard material of bones

Callus - formation of new bone around a fracture site, a "soft" material formed in the first stages of bone healing.

Cortical Bone - the dense, hard outer portion of a bone.

Distal - away from, furthest point of reference (from the head)

Distract - to extend or lengthen.

Femur - thigh bone, largest bone in the body (femoral, femora [pl])

Fibula - the smaller bone between the knee and ankle, on the outer side of the leg.

Implant - device inserted into a tissue for an indefinite period of time and which is not absorbed by the body.

Intramedullary - inside the hollow canal of a bone.

Lateral - outer sides or surfaces, away from the middle or median plane, both left and right.

Medial - middle or median plane, toward the midline, inner surfaces or sides.

Osteogenesis - the step by step process of natural bone growth.

Proximal - closer to the head, nearest point of reference.

Regenerate - new bone tissue growth.

Tibia - the large leg bone between the knee and ankle, on the inside of the leg (tibial, tibiae [pl])

Adapted from:
Balvuvelt, Carolyn T., and Fred R. Nelson. A Manual of Orthopaedic Terminology 4th ed. Philadelphia: The C. V. Mosby Company, 1990