An independent inter- and intra-observer agreement assessment of the Eno classification of sacroiliac joint degeneration.

Background: Recently, a scoring system to grade sacroiliac joint (SIJ) degeneration using computed tomography (CT) scans was described. No independent evaluation has determined the inter- and intra-observer agreement using this scheme.

Purpose: To perform an independent inter- and intra-observer agreement assessment using the Eno classification and determining gas in the SIJ.

Analysis of Risk Factors for New Vertebral Fracture After Percutaneous Vertebroplasty.

Study Design: Retrospective analysis. Level of evidence III.

Objectives: Low-energy vertebral compression fractures are an increasing socioeconomic problem among elderly patients.

Atlantoaxial joint synovial cyst: diagnosis and percutaneous treatment.

Synovial cysts at the atlantoaxial level are found uncommonly. Lumbar symptomatic cases are treated by percutaneous cyst aspiration with or without corticoid injection or by surgical resection, but synovial cysts at the C1-C2 level are usually treated by surgery. We report here a 92-year-old woman with a retro-odontoid synovial cyst producing spinal cord compression that was treated by percutaneous aspiration of the cyst under CT guidance.

Osteoid osteoma of the calcaneus: percutaneous radiofrequency ablation.

Osteoid osteoma of the foot can pose particular problems in diagnosis, especially when positioned in a juxta-articular location. It can cause reactive synovitis and simulate arthritis without periostitis. An atypical presentation may delay diagnosis and thus delay treatment.