title: Rupture of the quadriceps tendon.
abstract: Complete bilateral, simultaneous and spontaneous rupture of the quadriceps tendon is exceedingly rare; 17 cases have been reported, four with no predisposing cause. This report documents a fifth case, being the first in Dutch literature. Although diabetes, primary or secondary hyperparathyroidism, lupus erythematosus and gout are well-known predisposing factors, this case illustrates that the condition can occur in a previously healthy older patient.
mesh_terms: D000293:Adolescent; D000368:Aged; D006801:Humans; D008297:Male; D008875:Middle Aged; D012421:Rupture; D012422:Rupture, Spontaneous; D013708:Tendon Injuries / Q000209:etiology / Q000601:surgery*; D013848:Thigh / Q000293:injuries*