Osteoid Osteoma of the Hallux: A Diagnostic Challenge

Teaching point: Unexplained bone marrow edema on MRI warrants further investigation with CT to demonstrate a nidus which is pathognomonic for an osteoid osteoma

Synovial Fluid Fatty Acid Profiles Differ between Osteoarthritis and Healthy Patients

Objective: Free fatty acids (FAs) may influence cartilage metabolism and osteoarthritis (OA) disease progression. It is not clearly studied which FAs are present in the synovial fluid of knee joints and whether there are differences in FA content between nonsymptomatic and OA knee joints. The aim of this study was to investigate the presence of different types of FAs in synovial fluid of both OA- and nonsymptomatic control joints, and to analyze differences between both groups. Design: A total of 23 synovial fluid samples were collected from patients with end-stage knee OA undergoing total knee replacement, with approval of the medical ethical committee. As controls, 6 synovial fluid

Mediale enkelpijn : kijk naar het os naviculare

Ossificatievarianten van het os naviculare in de voet zijn een mogelijke verklaring van pijn aan de mediale zijde van de voetwortel en de aanwezigheid van een flexibele pes planovalgus. Radiografie is nuttig voor de detectie en subtypering van een accessoir os naviculare. MRI is de voorkeurstechniek om het symptomatische karakter van deze bevinding verder te duiden