title: Formal extensor mechanism reconstruction.
abstract: The clinical syndrome of extensor mechanism malalignment can either be primary or secondary. The distinguishing feature of extensor mechanism malalignment is passive patellar hypermobility at 30 degrees of flexion, which yields apprehension. Formal extensor mechanism reconstruction requires multiple steps, which are described along with variations.
authors.affiliation: Queen City Sports Medicine and Rehabilitation, Inc., Cincinnati, OH 45219.
authors.forename: J E
authors.initials: JE
authors.lastname: Turba
mesh_terms: D006801:Humans; D007719:Knee Joint / Q000601:surgery*; D008023:Ligaments, Articular / Q000601:surgery; D010329:Patella / Q000601:surgery*; D013710:Tendons / Q000601:surgery*