Data Trace Editor – Cervical Spine – Pelvic Radiology – MRI Discussion – Ossification of Soft Tissue and Periosteum – Pediatric Radiology – Radioisotope Scanning Magnetic Resonance Imaging of the Musculoskeletal System–Symposium: Physical Principles of Magnetic Resonance Imaging. Longitudinal growth and growth-plate activity in the lower extremity. Imaging of the hip joint. Computed tomography versus magnetic resonance imaging.
– See: Pediatric Elbow Injuries – Ossification Centers of the Elbow: – C apetellum (appears age 1-2) – R adial Head (appears age 2-4) – I nteranal epicondyle (appears age 4-6) – T rochlea (appears age 8-11) – O lecranon (9-11 years) … Read more
– See: – Post Op X-rays for THR: – Press Femoral Stems: – Normal Adaptive Changes: – proximally coated femoral stems should show fusiform cortical hypertrophy along the coated portions of the stem and absence of radiolucent lines; – distally radiolucent lines will surround the … Read more
– Indium 111 – Technetium 99m – Triphasic Bone Scan – Gallium Scan – Bone Scans in THR – Bone Scans in Avascular Necrosis – Nuclear Medicine Teaching Files References Review Articles: The Scintigraphic Diagnosis of Osteomyelitis. Comparison of indium-labeled-leukocyte imaging with sequential technetium-gallium scanning in the diagnosis of low-grade musculoskeletal sepsis. A prospective study. … Read more
– See: Radiology of the Pelvis – Classification: – elemental frx patterns: – posterior wall – posterior column frx – transverse frx – anterior column frx – anterior wall frx – associated frx patterns: … Read more
– Criteria for Instability: (see stable and unstable frx) – loss > 50% of vertebral body height; – angulation of thoracolumbar junction > 20 deg – neurologic injury – canal comprimise > 30 % – spinal segment … Read more
– See: – Types of Loosening: – Exam for THR Loosening: – Grading of Cement Technique: (Barrack, et al. (1992) and Mulroy, et al. (1995)) – Grade A: meduallary canal completely filled w/ cement (white out). – Grade B: a slight radiolucency exists at the … Read more
– Findings: – Assymmetrical osteopenia; – Spine: vertebral compression fractures; – Skull: – so-called salt-and-pepper skull – tiny punched out lesions may be present in the skull, producing so called salt and pepper appearance; – Clavicle: erosion of the … Read more
– See: Radiology of the Acetabulum – Discussion: – instability = cephalic displacement of posterior sacroiliac complex of at least 5-15 mm on inlet and outlet views; – look for gap (rather than impaction) posteriorly, & frx of 5th lumbar transverse process or avulsion of sacrospinous ligament; – Pertinent Radiographs: – AP … Read more
– Computed Tomography: – provides most information about posterior facet. – Harris Beath View – Broden’s View: – Lateral Oblique View – Lateral Oblique Axial View – Medial Oblique Axial – Misc: – lateral radiographs provide minimal information about subtalar joint; – oblique views … Read more