title: The meniscal "pseudocyst." A clinical sign of a torn meniscus.
abstract: We report a study of 636 patients requiring knee surgery, all of whom underwent detailed preoperative assessment. Fifty-eight patients had a clinical sign of a lump on the joint line when the knee was examined at 45 degrees of flexion, which has been thought to indicate a meniscal cyst. Of these 58 patients, however, only 30 patients had a meniscal cyst demonstrated at surgery. The remaining 28 patients had a meniscal tear without a cyst. In these 28 cases, the clinical sign of a lump protruding from the joint line was termed a "pseudocyst." This new clinical sign is important because of its frequency of occurrence and the complete correlation with meniscal tears requiring surgical intervention.
authors.affiliation: Australian Institute of Musculo-Skeletal Research, Sydney, New South Wales.
authors.forename: R
authors.initials: R
authors.lastname: Morgan-Jones
authors.forename: A S
authors.initials: AS
authors.lastname: Watson
authors.forename: M J
authors.initials: MJ
authors.lastname: Cross
authors.forename: J D
authors.initials: JD
authors.lastname: Saldanha
mesh_terms: D000328:Adult; D003560:Cysts / Q000175:diagnosis*; D005260:Female; D006801:Humans; D007718:Knee Injuries / Q000175:diagnosis; D007719:Knee Joint; D008297:Male; D000070600:Tibial Meniscus Injuries