title: Pain in the knee associated with osteoporosis of the patella.
abstract: Four patients, all of whom complained of pain in the knee, were found to have radiological evidence of osteoporosis particularly marked in the patella. In 3 a neurological lesion at the appropriate spinal segment was present, and the fourth patient, who was frankly hysterical, had an autonomic disturbance. If radiological porosis is isolated to the patella a distant cause such as nerve irritation should be sought.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007717:Knee; D008297:Male; D008875:Middle Aged; D009422:Nervous System Diseases / Q000150:complications*; D010024:Osteoporosis / Q000000981:diagnostic imaging / Q000209:etiology*; D010146:Pain / Q000209:etiology*; D010329:Patella / Q000000981:diagnostic imaging; D011859:Radiography