title: Retrotendinous calcification of the infrapatellar tendon: unusual cause of anterior knee pain syndrome.
abstract: Bilateral anterior knee pain is a common presentation to the orthopaedist. Correct diagnosis is based on careful history and physical examination aided by proper radiographs. Erroneous diagnosis may lead to improper treatment. This report describes a case of bilateral anterior knee pain syndrome of 3 years' duration. The teenaged patient was believed to be suffering from seronegative rheumatoid arthritis. Her pain persisted despite numerous antirheumatoid medications as well as a single injection of steroids into each infrapatellar tendon. The management of her case by means of arthroscopic surgical intervention is described.
authors.affiliation: Northeastern Ohio Universities College of Medicine, Department of Orthopaedics, Akron City Hospital.
authors.forename: S J
authors.initials: SJ
authors.lastname: Voto
authors.forename: J W
authors.initials: JW
authors.lastname: Ewing
mesh_terms: D000293:Adolescent; D001182:Arthroscopy; D002114:Calcinosis / Q000150:complications* / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007719:Knee Joint; D010146:Pain / Q000209:etiology; D013710:Tendons / Q000473:pathology*