It is well known that when the metacarpophalangeal joint in the thumb is forcefully hyperextended the volar plate tears, followed by dorsal dislocation, and when forcefully deviated laterally the collateral ligament on the ulnar or radial side tears. However, reports on the locking phenomenon of the thumb seem to be very few. The only two reports that the author is aware of are those by Kobayas...

This study investigates the relationship of hand use to the deforming hand joint changes of rheumatoid arthritis. Measurements of metacarpophalangeal lateral mobility, loss of metacarpophalangeal hyperextension, thumb metacarpophalangeal range of motion, and lateral pinch strength were statistically compared across dominant and nondominant hands of 51 adult subjects who had definite or classica...

OBJECTIVE To assess the effectiveness of modified dynamic metacarpophalangeal joint flexion orthoses for treatment of post-burn hand contractures. METHOD We enrolled 42 hand burn patients with limited range of motion at the metacarpophalangeal joints in this study. The patients were randomly assigned into either a control or an orthotic group. Both groups received the standard rehabilitation ...

in clinical practice, ultrasonography (US) often reveals, in the dorsal scan, a small anechoic area distally in both inflamed and clinically non-inflamed metacarpophalangeal joints. This ‘‘distal anechogenicity in the metacarpophalangeal joint’’ (DaeM) might thus be scored false positively as arthritis. We aimed to investigate whether the DaeM is a sign of arthritis. We evaluated the prevalence...

Congenital extensor tendon dislocation over the metacarpophalangeal joint is a rare condition. Here the author presents a patient with bilateral all fingers congenital extensor tendons dislocation over the metacarpophalangeal joints. A video demonstration and ultrasound images are shown to supplement this case.

OBJECTIVE To assess joint disease activity by ultrasound (US) in patients with rheumatoid arthritis (RA) initiating treatment with adalimumab (ADA) plus methotrexate (MTX). METHODS Data for this post hoc analysis originated from the MUSICA trial (ClinicalTrials.gov identifier: NCT01185288), which evaluated the efficacy of initiating ADA (40 mg every other week) plus 7.5 or 20 mg/week MTX in 3...