title: Extensor mechanism disruption after total knee arthroplasty: when the unthinkable happens.
authors.affiliation: Department of Orthopedic Surgery, Tulane University Health Sciences Center, New Orleans, LA 70112, USA.
authors.forename: Robert L
authors.initials: RL
authors.lastname: Barrack
authors.forename: R Allen
authors.initials: RA
authors.lastname: Butler
authors.forename: Richard
authors.initials: R
authors.lastname: Valenzuela
mesh_terms: D019645:Arthroplasty, Replacement, Knee; D006801:Humans; D010329:Patella / Q000293:injuries*; D011183:Postoperative Complications; D016059:Range of Motion, Articular; D012421:Rupture; D013708:Tendon Injuries / Q000209:etiology / Q000601:surgery*; D014184:Transplantation, Homologous; D016896:Treatment Outcome