PURPOSE The purpose of this study was to investigate the differences in the axial and coronal parameters of lumbosacropelvic morphology among a population with spondylolysis and healthy individuals by using 2- and 3-dimensional (3D) reformatted computed tomographic images. Moreover, this study aimed to evaluate the differences in sagittal geometry. MATERIALS AND METHODS The stone protocol abd...

BACKGROUND Bertolotti's syndrome is characterized by enlargement of the transverse process at the most caudal lumbar vertebra with a pseudoarticulation between the transverse process and sacral ala. Here, we describe the use of intraoperative three-dimensional image-guided navigation in the resection of anomalous transverse processes in two patients with Bertolotti's syndrome. CASE DESCRIPTIO...

The authors studied the plain radiographs and medical records of 5000 military recruits, mean age 19.1 years (range: 18 to 22), screened in a Turkish Military Hospital in the period November 2008-October 2009. They focused on the incidence of congenital lumbosacral malformations, such as spina bifida occulta and transitional vertebra, trying to find a correlation with subsequent low back compla...

Objective: To evaluate stress distribution over lumbosacral vertebrae and axial transsacral rod by means of finite element analysis. Methods: The intact finite element model was established along L4-S1 lumbosacral vertebrae and validated. To build the standalone AxiaLIF model, an axial transsacral rod was inserted into L5-S1 segment of the validated intact model in accordance with the AxiaLIF t...

Objective: To describe a clinical case of Schmorl’s node affecting the lumbosacral disc in an Airedale Terrier including surgical management, short-term outcome, and review of the literature. Methods: A five-year-old male Airedale Terrier with signs of chronic spinal pain and right hindlimb muscle fasciculation was diagnosed with a Schmorl’s node with computed tomography. Repeat imaging perform...

OBJECTIVE To investigate the correlation between different radiographic methods in the evaluation of the lumbosacral concavity. METHODS The sample consisted of 52 individuals with ages ranging from 18 to 28 years old. The procedures related to radiographic image collection were carried out in collaboration with a diagnostic imaging center of a hospital in Curitiba, PR, Brazil. The angles of t...

The purpose of this study was to devise a simple but reliable radiological method of identifying a lumbosacral transitional vertebra (LSTV) with a solid bony bridge on sagittal MRI, which could then be applied to a lateral radiograph. The vertical mid-vertebral angle (VMVA) and the vertical anterior vertebral angle (VAVA) of the three most caudal segments of the lumbar spine were measured on MR...

BACKGROUND Sacrum is a triangular bone placed in the base of the spine and formed by the synostosis of five sacral vertebrae (S1-S5). Its upper part is connected with the inferior surface of the body of L5 vertebra forming the lumbosacral joint, while its lower part is connected with the base of the coccyx forming the sacrococcygeal symphysis, an amphiarthrodial joint. The existence of four pai...