Bone lengthening (distraction osteogenesis): a literature review. 2011

F Sailhan
Department of Orthopedic Surgery, Hôpital Cochin, Paris-Descartes University, 27 rue du Faubourg Saint-Jacques, 75014 Paris, France. fred.sailhan@wanadoo.fr

Distraction osteogenesis (DO) is a surgical technique widely used in orthopedic surgery for the treatment of various pathological conditions such as leg length discrepancy, bone deformity or bone defects. The basic principle of the callotasis technique includes performing a transverse bone section before gradually distracting the two bone segments. New bone tissue is generated in the gap between the two segments. Bone regeneration during DO is believed to occur in response to the longitudinal mechanical strain applied to the callus during healing. One of the limitations of this technique is the long period of time required for the newly formed bone tissue to mineralize and consolidate. Various studies have reported that among growth factors, bone morphogenetic proteins (BMPs) may play a central role in the molecular signaling cascade leading to bone renegeration and remodeling in a DO procedure. Ongoing research is aimed at developing methods to accelerate bone consolidation in order to reduce the time required to obtain consolidation. One of these methods is to test the ability of exogenous BMPs to increase bone regeneration and accelerate bone consolidation.

UI MeSH Term Description Entries
D001861 Bone Regeneration Renewal or repair of lost bone tissue. It excludes BONY CALLUS formed after BONE FRACTURES but not yet replaced by hard bone. Osteoconduction,Bone Regenerations,Regeneration, Bone,Regenerations, Bone
D002146 Bony Callus The bony deposit formed between and around the broken ends of BONE FRACTURES during normal healing. Callus,Callus, Bony
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013314 Stress, Mechanical A purely physical condition which exists within any material because of strain or deformation by external forces or by non-uniform thermal expansion; expressed quantitatively in units of force per unit area. Mechanical Stress,Mechanical Stresses,Stresses, Mechanical
D018889 Ilizarov Technique A bone fixation technique using an external fixator (FIXATORS, EXTERNAL) for lengthening limbs, correcting pseudarthroses and other deformities, and assisting the healing of otherwise hopeless traumatic or pathological fractures and infections, such as chronic osteomyelitis. The method was devised by the Russian orthopedic surgeon Gavriil Abramovich Ilizarov (1921-1992). (From Bull Hosp Jt Dis 1992 Summer;52(1):1) Ilizarov Method,Ilizarov Technic,Method, Ilizarov,Technic, Ilizarov,Technique, Ilizarov
D019485 Bone Morphogenetic Proteins Bone-growth regulatory factors that are members of the transforming growth factor-beta superfamily of proteins. They are synthesized as large precursor molecules which are cleaved by proteolytic enzymes. The active form can consist of a dimer of two identical proteins or a heterodimer of two related bone morphogenetic proteins. Bone Morphogenetic Protein,Morphogenetic Protein, Bone,Morphogenetic Proteins, Bone
D019857 Osteogenesis, Distraction Bone lengthening by gradual mechanical distraction. An external fixation device produces the distraction across the bone plate. The technique was originally applied to long bones but in recent years the method has been adapted for use with mandibular implants in maxillofacial surgery. Callotasis,Distraction Osteogenesis,Callotases,Distraction Osteogeneses,Osteogeneses, Distraction

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