title: Acute rupture of the knee joint in pheumatoid arthritis.
mesh_terms: D000328:Adult; D001172:Arthritis, Rheumatoid / Q000150:complications*; D005260:Female; D006801:Humans; D007592:Joint Diseases / Q000175:diagnosis / Q000209:etiology; D007719:Knee Joint; D008875:Middle Aged; D012422:Rupture, Spontaneous / Q000175:diagnosis / Q000209:etiology; D013581:Synovial Cyst / Q000209:etiology