USS internal fixator in lumbar and thoracolumbar vertebral fractures.

The authors report their experience in the surgical treatment of lumbar and thoracolumbar vertebral fractures with the use of the USS-AO internal fixator at the Division of Orthopaedics of the Azienda Ospedaliera OO.RR. in Foggia between July 1996 and July 1998. The cases, although not numerous, confirm the effectiveness of the method of correction and its maintenance even in time.