- Pseudarthrosis
Infobox Disease Name Pseudarthrosis Image Nonunion.jpg Caption Hypertrophic nonunion of the tibia DiseasesDB ICD10 ICD10 M 84 1 m 80 , ICD10 M 96 0 m 95 ICD9 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshName Pseudarthrosis MeshNumber C21.866.404.468.627 Pseudarthrosis or nonunions is a fracture that has not united in the stipulated time in which such fractures usually unite and has no chance of union without intervention.There is movement of a bone at the location of a fracture resulting from inadequate healing of the fracture. US FDA has set a time period of 9 months for fracture union in order to decide when an intervention is required to facilitate union. Pseudarthrosis can also result from a developmental failure. Etymology The Greek stem pseud means false and arthrosis means joint. Pseudarthrosis , then, is a false joint. In the case of a non union , a fracture that does not heal, this is often evidenced by the obliteration of the medullary cavity of a long bone at the site of the non union. This non union is not a true joint, and has no ligamentous support, but often has motion, and remodels into a rounded end that looks like a true joint. Causes of Nonunion 1 Causes related to patient a Age Common in old age b Nutritional status poor c Habits Nicotine and alcohol consumption d Metabolic disturbance Hyperparathyroidism 2 Causes related to fracture a Distraction at fracture site b Soft tissue interposition c Bone loss at the fracture d Infection e Loss of blood supply f Damage of surrounding muscles 3 Causes related to treatment a Inadequate reduction b Insufficient immobilisation c Improperly applied fixation devices. Types of Nonunion Judet and Judet, Muller, Weber and Cech, and others classified nonunions into two types according to the viability of the ends ... cite journal author Niedzielski K, Synder M title The treatment of pseudarthrosis using the Ilizarov ... apparatus. File Scaphoid Pseudarthrose1.jpg thumb 300px right Scaphoid pseudarthrosis before and after ... more details
|
- Nonunion
Nonunion also means a workforce that does not belong to a trade union . Nonunion is permanent failure of bone healing healing following a fracture bone broken bone . Nonunion is a serious Complication medicine complication of a fracture and may occur when the fracture moves too much, has a poor blood supply or gets infected. Patients who smoke have a higher incidence of nonunion. The normal process of bone healing is interrupted or stalled. In some cases a pseudo joint pseudarthrosis develops between the two fragments with cartilage formation and a joint cavity. More commonly the tissue between the ununited fragments is scar tissue. Since the process of bone healing is quite variable, a nonunion may go on to heal without intervention in a very few cases. In general, if a nonunion is still evident at 6 months post injury it will remain unhealed without specific treatment, usually orthopedic surgery . A non union which does go on to heal is called a delayed union. Clinical features A history of a fracture bone broken bone is usually apparent. The patient complains of persistent pain at the fracture site and may also notice abnormal movement or clicking at the level of the fracture. An x ray plate of the fractured bone shows a persistent radiolucent line at the fracture. Fibrocartilage callus Callus formation may be evident but callus does not bridge across the fracture. If there is doubt about the interpretation of the Xray, stress Xrays, tomograms or computed axial tomography CT scan may be used to make sure. Pathophysiology The reasons for non union are avascular necrosis the blood supply was interrupted by the fracture the two ends are not apposed that is, they are not next to each other infection particularly osteomyelitis the fracture is not fixed that is, the two ends are still mobile soft tissue imposition there is muscle or ligament covering the broken ends and preventing them from touching each other Hypertrophic non union Callus is formed, but the bone fract ... more details
|
- Pulsed electromagnetic field therapy
, James W, Jr, Vert Mooney, and Ike Thacker. Pseudarthrosis after lumbar spine fusion nonoperative ... W, Jr, Vert Mooney, and Ike Thacker. Pseudarthrosis after lumbar spine fusion nonoperative salvage ... more details
|
- Doctor Willard Bliss
at Cleveland Medical College , submitting his thesis on Pseudarthrosis or False Joint in 1849. ref name Bliss 1849 cite book last Bliss first Doctor Willard title A thesis on pseudarthrosis or false ... . ref name Baxter 1891 Publications cite book last Bliss first Doctor Willard title A thesis on pseudarthrosis ... more details
|
- Gavriil Ilizarov
to the leg. Ilizarov distracted the stiff non union in his tibia by 2 cm, healing the pseudarthrosis ... more details
|
- Neurofibromatosis type I
lesion such as sphenoid dysplasia or thinning of the long bone cortex with or without pseudarthrosis ... bone with a tendency to fracture and not heal, yielding a pseudarthrosis . The most common bone to be affected is the tibia, causing congenital pseudarthrosis of the tibia or CPT. CPT occurs in 2 ... more details
|
- Ilizarov apparatus
osteogenesis Osteogenesis Imperfecta Pseudarthrosis References Reflist External links Commons ... more details
|
- List of MeSH codes (C21)
Pseudarthrosis pseudarthrosis MeshNumber C21.866.404.484 Hip Fractures hip fractures MeshNumber ... more details
|
- Bone morphogenetic protein 7
A, Moghaddam A title Therapeutic outcome in tibial pseudarthrosis bone morphogenetic protein 7 BMP ... more details
|
- ICD-10 Chapter XIII: Diseases of the musculoskeletal system and connective tissue
0 m 80 Malunion of fracture ICD10 M 84 1 m 80 Nonunion of fracture pseudarthrosis ICD10 M 84 2 m 80 ... musculoskeletal disorders , not elsewhere classified ICD10 M 96 0 m 95 Pseudarthrosis after fusion ... more details
|
- Scoliosis
of life. Additionally, there was a relatively high risk of pseudarthrosis fusion failure at one or more ... more details
|
- Spondylolisthesis
C, Edward C title Pseudarthrosis in primary fusions for adult idiopathic scoliosis incidence ... more details
|
- ICD-10 Chapter XVII: Congenital malformations, deformations and chromosomal abnormalities
limb s , including shoulder girdle Accessory carpal bones Cleidocranial dysostosis Congenital pseudarthrosis ... more details
|
Encyclopedia
top
