title: Classification of patellofemoral disorders.
abstract: Patellofemoral disorders represent a large portion of the average orthopedist's practice. Despite the improvements in patellofemoral radiographs and arthroscopic diagnostic techniques, these disorders are too frequently misunderstood and frustrating to treat. This report proposes a clinical classification for patellofemoral disorders that, it is hoped, will aid our understanding and improve our results of treatment. A major feature of this classification is the recognition that a developmental and familial abnormality, patellofemoral dysplasia, is the etiology for most patellofemoral disorders. Equally important is the assignment of chondromalacia patellae to a secondary position for the most part. Other causes of anterior knee pain and disability are included to complete the classification.
authors.affiliation: Department of Orthopedic Surgery, El Camino Hospital, Mountain View, CA 94040.
authors.forename: A C
authors.initials: AC
authors.lastname: Merchant
mesh_terms: D000293:Adolescent; D002908:Chronic Disease; D005260:Female; D005264:Femoral Fractures / Q000145:classification*; D006801:Humans; D004204:Joint Dislocations; D007593:Joint Instability; D007718:Knee Injuries / Q000145:classification*; D007719:Knee Joint; D008875:Middle Aged; D010329:Patella / Q000293:injuries*; D012421:Rupture