Ultrasound features of nonstructural lesions of the proximal and distal interphalangeal joints of the hands in patients with finger osteoarthritis.

Objectives: To describe the ultrasound features of nonstructural damage (effusions, synovitis, Doppler signal abnormalities) in the proximal interphalangeal (PIP) and distal interphalangeal (DIP) joints of the fingers in patients with finger osteoarthritis compared to healthy controls.

Methods: We included patients at a hospital-based outpatient rheumatology clinic who met American College of Rheumatology criteria for finger osteoarthritis and we compared them to healthy controls. Exclusion criteria were the same in both groups.

High frequency of ultrasonographic effusion in interphalangeal joints of healthy subjects: a descriptive study.

Objective: To describe echographic abnormalities on the proximal (PIP) and distal (DIP) interphalangeal joints of healthy subjects.

Methods: Healthy asymptomatic volunteers under forty were enrolled. Ultrasonography was performed on PIP and DIP 2-5 in the presence of two operators.