BACKGROUND Lumbar segmental instability is often considered to be a cause of chronic low back pain. However, defining its measurement has been largely limited to laboratory studies. These have characterised segmental stability as the intrinsic resistance of spine specimens to initial bending moments by quantifying the dynamic neutral zone. However these measurements have been impossible to obta...

absract intestinal malrotation is a general term used for any deviation from normal embryonic gi tract rotations. this abnormality, denotes a spectrum of conditions (non rotation, incomplete rotation) that according to the severity of anatomic consequence, can result in complications found in infancy, childhood, adolescence, adulthood or old age. this article, reports another case of intestinal...

idiopathic or spontaneous segmental infarction of omentum is a rare disease producing acute abdominal emergency. this rare entity is in a small group of abdominal emergencies with circulatory compromise. infarction could be caused by omental torsion which could be due to adhesion of a previouse surgery or it could be spontaneous. less than 150 cases of idiopathic segmental infarction of omentum...

An 11 year old boy with short stature, learning difficulties, and no obvious facial anomalies has a ring (3)(p23q29) formed by a break in the short arm at 3p23 and subsequent fusion with 3qter. A second rearrangement involving translocation of the displaced 3p23-->pter segment to chromosome 6 at 6pter is non-reciprocal with no obvious loss of distal 6pter material. The involvement of one chromo...

The Guyon's canal syndrome is a well known clinical entity and may have significant impact on patient's quality of life. We report a case of 43-year-old male who presented with complaints of pain and numbness in right hand and difficulty in writing for past one month. On imaging diagnosis of Guyon's canal syndrome because of tortuous ulnar artery was made with additional findings of DeQuervain'...

The authors present the advantages and disadvantages of the Denis and AO classifications based on a review of classical and recent literature concerning the evolution of classification of thoracolumbar spine conditions. The newest classification of fractures proposed by Vaccaro (TLICS - Thoracolumbar Injury Classification Severity Score) is discussed in detail. Special attention is given to ins...

The in-vivo study of bone graft incorporation has traditionally used a segmental diaphyseal bone defect. This model reliably produces a nonunion, but is complicated by graft instability and altered limb loading stresses. The authors discuss the advantages of a defect-in-continuity canine femur model which produces a more consistent union with fewer mechanical complications despite the absence o...

INTRODUCTION: Spinal fusion techniques including anterior lumbar interbody fusion (ALIF) have been used to alleviate chronic low back pain and segmental instability. Supplemental fixation using pedicle screws, translaminar screws, facet screws, anterior plates or spinous process plates is often used to increase the stability of the ALIF construct to enhance fusion and prevent subsidence and mig...