KEY FACTS Terminology Methods to stabilize subaxial cervical spine with posterior element constructs Procedure Interspinous wiring (Rogers 1942) Simple and low risk Sublaminar wiring Attach to onlay graft material or rods Facet wiring (Callahan 1977) Facet capsules opened and holes…
KEY FACTS Terminology Cages used to reconstruct anterior spinal column after corpectomy In vivo expansion of cage permits optimal fit and correction of deformity Imaging Cylindrical metallic prosthesis along craniocaudal span of vertebral body Radiography & CT Difficult to assess…
KEY FACTS Terminology Instrumentation in fusion surgery designed to stabilize, not replace, spinal bony elements Imaging Postoperative imaging: Assess progress of osseous fusion, confirm correct positioning & integrity of instrumentation, detect suspected complications (e.g., infection or hematoma), & detect new…
Regulation Once a device becomes FDA approved and available, the physician can use the device in any manner (off-label) that he/she desires if it is in the best interest of the patient and supported by objective and appropriate peer-reviewed scientific…
KEY FACTS Terminology CT: Beam-hardening artifact and blooming artifact MR: Magnetic susceptibility artifact Image degradation related to metal prostheses/implants Imaging CT: Artifact from metal hardware related to image reconstruction algorithm, tube current, x-ray kilovolt peak, pitch, hardware composition, shape, &…
KEY FACTS Terminology Peridural fibrosis Some degree of peridural fibrosis along margin of thecal sac is typical finding following discectomy Edema and tissue disruption at discectomy site particularly conspicuous in first 6 weeks postoperatively Can simulate disc residual/recurrent disc herniation…
KEY FACTS Terminology Substantial imaging overlap in routine early postoperative findings vs. surgical complications Early postoperative imaging not routinely obtained Edema, granulation tissue at operative site may simulate residual/recurrent disc herniation Marrow changes and fluid associated with intervertebral fusion may…
Terminology Radiographic measurement techniques, skull base craniometry, skull base lines Pathology-based Imaging Issues This chapter provides a broad summary of the varied measurement techniques used to evaluate the spine. The main focus for the reader should be the tables and…
TERMINOLOGY Abbreviations Anterior longitudinal ligament (ALL) Posterior longitudinal ligament (PLL) Synonyms Articular processes = facets = zygapophyses GROSS ANATOMY Overview 5 discovertebral units (L1-L5) You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles…
TERMINOLOGY Abbreviations Costovertebral (CV) Synonyms Costal facet = demifacet GROSS ANATOMY Overview Consists of 12 vertebrae (T1-12) Thoracic kyphosis 1 of 2 primary spinal curves (thoracic & sacral) present at birth, maintained throughout life Cervical & lumbar lordoses are secondary…