lumbrical plus deformity

lumbrical plus deformity

[lum′brikəl]
a complication of rheumatoid arthritis in which the lumbricals (muscles in the hands and feet) become contracted. A main effect of the dysfunction is metacarpophalangeal joint flexion and interphalangeal joint extension. Compare boutonnière deformity.
References in periodicals archive ?
In mangled hand preserving or reconstructing flexor tendon function is to avoid lumbrical plus deformity.