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A 69-year-old patient presented with chronic bilateral knee pain. No recent trauma or underlying medical condition was reported. A radiograph revealed multiple bilateral calcifications ventral to the tibial plateau, projecting from the infrapatellar bursa. The presence of such calcifications in radiographic studies is a typical end-stage feature of chronic prepatellar bursitis, also known as housemaid's knee. The characteristic calcifications of the infrapatellar bursa (Panel A, anteroposterior view; Panel B, lateral view) are the result of a chronic bursitis. This disease affects people with continual mechanical strain and monotone movements of the patella. In this case, the patient had worked as . . . [Full Text of this Article] |
A correction has been published: N Engl J Med 2009;360(17):1797.
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