Usefulness of Percutaneous Pedicle Screw Fixation for Treatment of Lower Lumbar Burst (A3-A4) Fractures: Comparative Study with Thoracolumbar Junction Fractures.

Background: Percutaneous pedicle screw fixation (PPSF) without fusion has been recently recommended in the treatment of thoracolumbar fracture to reduce the adverse effects associated with the conventional open approaches and to restore range of motion. However, those studies report on the thoracolumbar junction, and there is no report on lower lumbar fracture.

Purpose: To assess effectiveness of PPSF without fusion for treating lower lumbar burst (A3 and A4) fractures.

Effect of Congenital C4-5 Synostosis on Adjacent Mobile Segments: Radiographic Assessment.

Study Design: Prospective case series.

Purpose: To assess the corporal morphology of the fused body and adjacent segment conditions.

Overview Of Literature: It is known that two fused vertebral bodies take the similar shape of the single body with inwaisting, with or without caudal flaring of the fused body, and that the fused body can cause the fusion disease at the adjacent segment that can be a risk factor for potential neurological compromise.