Lumbar fusion using the pedicle screw system is a popular operative procedure, with favorable clinical results and high fusion rates. However, the risk of adjacent segment disease after lumbar fusion is problematic. We report a complicated case of severe retrolisthesis at L3-4 level following dynamic interspinous process stabilization at L2-3 level and a fusion at L4-5 level. The radiological a...

A 74-year-old man with high blood pressure, dyslipidemia, and diabetes, who had been evaluated in our unit 13 months earlier for atrial fibrillation, underwent cardioversion with no apparent structural heart disease. One month later he was diagnosed with T4N3M0-stage adenocarcinoma of the lung and received chemotherapy and radiation therapy. In February 2011, the patient was hospitalized for in...

Solitary lumbar spinal osteochondroma with neurological symptoms is very rare. We report the case of an 81-year-old man with radicular pain caused by lumbar solitary osteochondroma. A computed tomography (CT) scan showed a bony tumor arising from the left L2/3 articular process. Intraoperative findings showed that the tumor originated from the left superior articular process of the L3 vertebra....

Looking to the applied significance of lumbar plexus in the form of its involvement in various injuries and entrapment, it is imperative to have a thorough knowledge about its formation, branching pattern and variations. A recent increase in the retroperitoneal laparoscopic surgeries inspired us to revisit the anatomy of lumbar plexus. The purpose of this study was to describe the anatomical va...

Enterogenous cysts mostly present in the cervical and thoracic region of the spinal canal and have only rarely been observed in the lumbar region. We report here a case of a recurrent enterogenous cyst in the lumbar spinal canal. A 24-year old woman presented with lower back and left radicular leg pain for 1 year. She had been operated on for mass lesion at the same level 10 years ago. Lumbar s...

Low back pain has for long been associated with the lumbar spine biomechanics. A three dimensional model of segments L2 to L5 of lumbar spine is generated form CT images of a healthy human male. Hounsfield units of the image slices are used to derive material properties throughout the 3D model. This model is subjected to finite element analysis to study stresses developed during naturally found...

Diabetes mellitus (DM) and osteoporosis are common diseases and their prevalence increases with age. Several investigations have indicated that type 1 DM has a significant relationship with bone loss, whereas in type 2 diabetes, this relationship is controversial. Therefore, this study was conducted to determine the relationship between osteoporosis and type 2 DM in elderly people. This populat...

BACKGROUND The aim of this study was to compare the accuracy of the position of the epidural catheter inserted from three different lumbar intervertebral spaces, L2-3, L3-4, and L4-5, in infants and children. METHODS Seventy-five children were randomly allocated to 3 groups according to the epidural catheter insertion site (L2-3, L3-4, and L4-5). The epidural catheter tip was identified using...

Kidney size may be altered in renal diseases, and the detection of kidney size alteration has diagnostic and prognostic values. We hypothesized that radiographic kidney size, the kidney length to the second lumbar vertebra (L2) length ratio, in normal Miniature Schnauzer dogs may be overestimated due to their shorter vertebral length. This study was conducted to evaluate radiographic and ultras...

Background: The purpose of this study was to use magnetic resonance imaging (MRI)-based assessments of multifidus muscle to predict development of proximal junctional kyphosis (PJK). Methods: We retrospectively reviewed 62 patients with lumbar degenerative disease (LDD) who underwent fusion of L5 and all the upper instrumented vertebrae (UIVs) in the thoracolumbar spine (T9-L2), with ≥2 years’ ...