– 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
– 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: PreOp Planning: – Discussion: – a candidate for HTO should have relatively normal lateral and patellofemoral compartments; – degenerative changes confined to medial compartment should be apparent in x-rays, although minor arthritic changes in lateral compartment or patellofemoral joint are not absolute contraindications – HTO is contraindicated w/ lateral compartment or patellofemoral symptoms … Read more
– Discussion: – correlation w/ back pain: – traction spurs &/or severe disc space narrowing do correlate w/ pain; – spondylosis, Spondylolisthesis, & adult Scoliosis may or may not be associated with back pain; – there is little correlation between back … Read more
– Discussion: – complete knee series should include an anteroposterior, lateral, & axilla view as well as a tunnel view in skeletally immature pts; – Specific Views: – Axilla View – Lateral Radiograph – Tangential Patellar Views – Tunnel Radiograph – X-ray Features of … Read more
– anterior erosion of the odontoid process – anterior posterior erosion of odontoid process (applecore odontoid) – subluxation of C1 on C2; – focal soft tissue calcification anterior to the ring of C1 – ankylosis of the apophyseal joints (often leading to ankylosis & fusion of the vertebrals bodies); – longitudinal and circumferential growth abnormalities … Read more
– Diagnosis: – early changes are limited to the soft tissues w/ fusiform swelling and joint effusion; – juxta-articular osteoporosis may become more generalized w/ dz progression; – cartilage destruction produces narrowing of the joint; – erosion of bone occurs characteristically in the metaphyseal region underlying collateral … Read more
– Discussion: – indicated for comminuted radial head frx which occur w/ concomitant MCL injury, dislocation, or RU joint disruption (Essex Lopresti Fracture); – will serve as spacer & will prevents proximal migration of radius; – w/ RU joint disruption, radial head spacer alone does not restore satisfactory axial stability w/o pinning the distal radioulnar … Read more
– See: Stages of Rheumatoid Arthritis – Discussion: – affects 1-3% of adult population; – female predominance of about 3 to 1; – peak age of onset 35 and 45 years; – most often presents with involvement in the feet and hands (intial involvement occurs in 15% … Read more
– See: – Rheumatoid Arthritis – Extensor Tendon Lacerations – Mallet Finger – Rheumatoid Wrist – Teno-synovectomy – Discussion: – ulnar side of wrist is most common site of extensor tendon ruptures; – pathophysiology: (caput ulnae syndrome) – this most often due to attritional changes due to caput ulnae syndrome; – volar subluxation of the … Read more