Spinal trauma with a complete anterior vertebral body dislocation: a report of three cases.

Study Design: Retrospective review of three cases.

Objectives: Severe trauma can be responsible for a complete spinal anterior dislocation with a 100% anterior slip of the vertebral body. Three cases of this uncommon lesion are reported.

Traumatic dislocation of the lumbosacral junction diagnosis, anatomical classification and surgical strategy.

Traumatic lumbosacral dislocation is a rare lesion often characterised by a fracture dislocation of L5-S1 articular facets associated with anterior L5 slipping. Because of its rarity, the surgical strategy of lumbosacral traumatic dislocation remains controversial. We report the most important series of traumatic lumbosacral dislocation.

Radiographic analysis of the sagittal alignment and balance of the spine in asymptomatic subjects.

Background: There is an increasing recognition of the clinical importance of the sagittal plane alignment of the spine. A prospective study of several radiographic parameters of the sagittal profile of the spine was conducted to determine the physiological values of these parameters, to calculate the variations of these parameters according to epidemiological and morphological data, and to study the relationships among all of these parameters.

Methods: Sagittal radiographs of the head, spine, and pelvis of 300 asymptomatic volunteers, made with the subject standing, were evaluated.

[Extension tear-drop fracture of the axis: a surgically treated case].

Tear-drop fracture of the axis is an exceptional spinal fracture which generally occurs after high-energy trauma with hyper-extension of the cervical spine. Purely anterior fracture can occur with no real impact on stability. Orthopedic treatment provides good results in this situation.

[Sacroiliac fixation: a new technique after pelvic trauma].

We propose a new technique for sacroiliac fixation for the treatment of pelvic fracture with vertical and horizontal instability (Tile class C). This fixation technique allows control of vertical displacement while allowing, if needed, a certain degree of movement in the horizontal plane to facilitate reduction of anterior lesions. The technique involves insertion of two sacral screws, one in S1 and one in S2, and two iliac screws.

[Physiological value of pelvic and spinal parameters of sagital balance: analysis of 250 healthy volunteers].

Purpose Of The Study: Sagital balance of the spine is a fundamental element necessary for understanding spinal disease and instituting proper treatment. The aim of this prospective work was to establish the physiological values of pelvic and spinal parameters of sagital balance of the spine and to investigate their interactions.

Material And Method: Pelvic and spinal parameters were measured on the standing radiographs of 250 healthy volunteers.

[Validation of a tool to measure pelvic and spinal parameters of sagittal balance].

Purpose Of The Study: Parameters determining sagittal balance are essential for optimal analysis and treatment of many spinal disorders. The purpose of this work was to validate a software designed to measure the principal parameters involved in sagittal balance of the spine.

Material And Methods: Six parameters (lumbar lordosis, thoracic kyphosis, sagittal tilt at T9, pelvic index, pelvic tilt, slope of the sacrum) were measured on lateral views of the spine from 100 healthy volunteers free of any spinal disease.