A truly global perspective on the lumbar spine with contributions from over 200 international experts.
– Discussion: – uncovertebral joint arthrosis involves what is known as the joints of Luschka, extending from C3 to C7; – lateral aspect of vertebral body has superior projection (uncinate process); – as the disks become degenerative, these projections approximate w/ body of the next highest vertebra; … Read more
– Discussion: – unilateral bar is a common disorder and is likely to progress; – it is caused by failure of segmentation of posterior elements of two or more vertebrae on one side; – this anomaly carries a predictable poor prognosis & therefore a patient w/ this anomaly should … Read more
– See: – Facet Joint Injuries – Hyperflexion Injuries – Oblique projections; – Pillar View – Discussion: – simple unilateral facet dislocation is often a stable injury, eventhough there is disruption of the posterior ligament complex (involved joint capsule, posterior longitudinal ligament, … Read more
Type Age Pathology / Other Congenital Child Congenital dysplasia of S1 superior facet Isthmic … Read more
– See: spine in osteoporosis – Discussion: – caused by long term calcium deficiency; – there is an age related decline in renal production of 1,25 Vit D with subsequent hyperparathyroidism & bone loss; – these pts have already lost most of the bone they ever will lose; … Read more
– Discussion: – due to loss of estrogen & affects postmenopausal women; – 2-3% accelerated (loss for 6-10 yrs which then returns to basal loss of 0.3-0.5 %/year; – primarily loss of trabecular bone: – associated w/ greater decline in medullary bone & preservation … Read more
– Discussion: – most common; – occur thru base of odontoid process & may be caused by either hyper-flexion or hyperextension forces; – blood supply is often comprimised in a type 2 frx – type II frx occurs at base of dens, typically, frx plane is transverse; … Read more
– Primary Spinal Tumors: – primary spinal cord neoplasia – primary tumors of vertebral body: – 75% percent of vertebral body tumors are malignant; – multiple myeloma (most common primary tumor of spine) – chordoma … Read more
– See: – Myobacterium tuberculosis – Vertebral Osteomyelitis – Discussion: – 4000 cases of extrapulmonary involvment each year in the US; – most common extra pulmonary location of TB is the spine; – spine is the extrapulmonary site in over 50% of the cases of … Read more
(based on classification of King et al) assistance provided by Ben Allen Jr. M.D. … Read more