OBJECTIVES Three operative techniques have been described to correct thoracolumbar kyphotic deformity (TLKD) resulting from ankylosing spondylitis (AS) at the level of the lumbar spine: opening wedge osteotomy, polysegmental wedge osteotomies, and closing wedge osteotomy. Little knowledge exists on the indication for, and outcome of these corrective lumbar osteotomies. METHODS A structured re...

STUDY DESIGN A prospective case series study. OBJECTIVE To describe and assess a two-level osteotomy method for the management of severe thoracolumbar kyphosis (TLK) in patients with ankylosing spondylitis (AS). SUMMARY OF BACKGROUND DATA To achieve better postoperative outcomes in these patients, a sophisticated preoperative surgical plan is required. Most deformities are managed using a o...

With advances in spine surgery, congenital spine deformity can now be treated with corrective fusion and osteotomy, even in young children. In these patients, the spine has various complications of vertebral anomalies and congenital fusion. A successful and safe outcome of corrective surgery requires evaluation by imaging preoperatively. Congenital spinal anomaly has conventionally been evaluat...

Iliac fixation is indicated to provide spinopelvic stabilization in select cases of long segment thoracolumbar spine fusion, spinal osteotomy/realignment, trauma, and instability caused by tumor or infection. Traditional iliac fixation with iliac screws or S2 alar/iliac (S2AI) screws may provide inadequate fixation in select clinical scenarios, such as severely compromised bone quality or spino...

STUDY DESIGN Author experience and literature review. OBJECTIVES To investigate and discuss decision-making on when to perform a Smith-Petersen osteotomy as opposed to a pedicle subtraction procedure and/or a vertebral column resection. SUMMARY OF BACKGROUND DATA Articles have been published regarding Smith-Petersen osteotomies, pedicle subtraction procedures, and vertebral column resection...

Andersson lesion (AL) is an uncommon manifestation of ankylosing spondylitis (AS) first described by Andersson in 1937. Few data are available on Anderson lesion in AS because of the lack of proper diagnostic criteria and the differences in the extent of spinal survey undertaken. Multiple types of surgery have been applied in the treatment for AL. However, the most effective and safe surgical p...

STUDY DESIGN Retrospective study. PURPOSE The main purpose of this study was to investigate the union-rate of the spinous process after performing a spinous process osteotomy and whether union affects the clinical results after surgery. OVERVIEW OF LITERATURE In the present study, spinous process osteotomy was used to facilitate access to the spinal canal when performing a decompressive pro...