Posterior screw–plate fixation of a breast cancer metastasis that had caused severe pain in a 57–year–old woman who died six months after surgery. The plate was removed from the frozen specimen and the screw tracts and the plate cavity were filled with a blue casting medium. This slide is a sagittal cryosection through the articular pillar from C3 to C6. Three screws traverse the facet joints. At C4 and C6 the screws have poor purchase in the metastatic bone, the lowest screw erodes the bone. The 18mm long screws (11mm effective screw length) are oriented sagittally in the articular mass and point towards the nerve roots, ganglia and segmental arteries.

©2000 Wolfgang Rauschning, M.D., Ph.D.
Professor of Clinical Anatomy
Academic University Hospital
Department of Orthopaedic Surgery
Uppsala, Sweden
Reproduction without permission is prohibited
http://www.akademiska.se/

Updated on: 09/18/12

http://www.spineuniverse.com/professional/pathology/trauma/cervical-spine-injuries-fractures-whiplash-screw-plate-fixation

lunes, 24 de noviembre de 2014

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domingo, 23 de noviembre de 2014

NASS 2014 HIGHLIGHTS

http://www.healio.com/orthopedics

NASS 2014 HIGHLIGHTS

Hyun W. Bae

Motion preservation at two cervical levels may make more sense than fusion
SAN FRANCISCO — The safety and efficacy of cervical total disc replacement was maintained at 5-year follow-up at levels seen in studies of the same prosthesis with shorter follow-up, regardless of whether the prosthesis was implanted at one or two levels of the spine, according to study data presented at the North American Spine Society Annual Meeting. Read more

Michael L.
Reed

VIDEO: NASS program co-chair speaks about the annual meeting
SAN FRANCISCO — Michael L. Reed, DPT, OCS, the executive director of the North American Spine Foundation and a 2014 Program Co-Chair for the North American Spine Society (NASS) Annual Meeting, speaks about this year’s meeting and its offerings for attendees. Watch video

Frank P.
Cammisa Jr.

Surgeon foresees role for titanium, 3-D printing in lumbar lateral access surgery
SAN FRANCISCO — Newer materials and designs are expected to support continued use of lumbar spine procedures performed through a lateral surgical approach, including standalone surgery intended to relieve pain from spine deformity, according to a presenter at the North American Spine Society Annual Meeting.Read more