Pseudarthrosis


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Pseudarthrosis

 

false joint, persistent pathological mobility throughout a bone (generally a long bone).

Pseudarthrosis is classified as either congenital or acquired. The cause of congenital pseudarthrosis is an aberration in the bone’s intrauterine development. Tibial pseudarthrosis (usually in the lower third of both bones) is among the most frequent of the congenital group. Acquired pseudarthrosis develops after injury to a bone (fracture, osteotomy), osteomyelitis, or impairment of a bone’s regenerative function (rickets, osteomalacia, scurvy). Treatment is surgical.

References in periodicals archive ?
Pseudarthrosis develops within the first two years of life and is very rare, affecting one out of 250,000 births.
The possibility of pseudarthrosis was evaluated via flexion/extension radiographs using anteroposterior and lateral views or computed tomography imaging.
Improving biomechanical stability would avoid complications such as pseudarthrosis or malunion.
Possible causes can be divided into primary (congenital fibular pseudarthrosis, spina bifida, cerebral palsy, hemophilic arthropathy, fibular physeal arrest, tibiofibular synostosis before skeletal maturity, longitudinal fibular deficiency) and compensatory mechanisms (secondary to deformities above or below the ankle joint).
A pseudarthrosis was then noted six months following surgery and a stress fracture in the fibular strut allograft was subsequently found one year post-operatively after the patient underwent a 2,000 mile car ride.
Neonatal diagnosis of congenital pseudarthrosis of the clavicle.
On the causes and treatment of pseudarthrosis and especially of that form of it sometimes called supranumerary joint.
Pseudoarthrosis of humeral bone in practice of restorative surgery, by the data of different authors, make 51-71% against to all pseudarthrosis of the long cortical bones.
Drawings illustrate Crawford's classification of congenital pseudarthrosis of tibia.
The 7 clinical criteria used to diagnose NF1 are six or more cafe-au-lait spots, Axillary or inguinal freckles, two or more typical neurofibromas or one plexiform neurofibroma, Optic nerve glioma, two or more iris hamartomas (Lisch nodules), Sphenoid dysplasia or typical long-bone abnormalities such as pseudarthrosis and first-degree relative with NF1 patients.
The boisterous 18-months-old youngster was born with pseudarthrosis of the tibia -- which affects just one in 250,000 youngsters.
Bassett CA, Schink-Ascani M (1991) Long-term pulsed electro- magnetic field (PEMF) results in congenital pseudarthrosis.