title: The potential of accelerometers in the evaluation of stability of total knee arthroplasty.
abstract: An accelerometer attached to the anterior proximal tibia was investigated as an evaluation of knee stability of Total Knee Arthroplasty (TKA) patients while performing daily activities. Acceleration data of 38 TKA knees with a minimum follow up of 6months were compared with 34 control knees. The activities performed were: walking three steps forward and coming to a sudden stop; turning in the direction of non-tested knee; sit-to-stand; and stepping up and down from a 7 inch step. The acceleration results showed significant differences between TKA and controls while stepping down and while turning in the non-tested knee direction. The higher accelerations with the TKA group may have represented an objective measure of stability, even if this was not directly discernible to the patient.
authors.affiliation: Department of Orthopedic Surgery, New York University Hospital for Joint Diseases, New York, NY 10010, USA.
authors.forename: Humera
authors.initials: H
authors.lastname: Khan
authors.forename: Peter S
authors.initials: PS
authors.lastname: Walker
authors.forename: Joseph D
authors.initials: JD
authors.lastname: Zuckerman
authors.forename: James
authors.initials: J
authors.lastname: Slover
authors.forename: Fredrick
authors.initials: F
authors.lastname: Jaffe
authors.forename: Raj J
authors.initials: RJ
authors.lastname: Karia
authors.forename: Joo H
authors.initials: JH
authors.lastname: Kim
mesh_terms: D061725:Accelerometry; D000203:Activities of Daily Living; D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000534:rehabilitation*; D005260:Female; D006801:Humans; D007593:Joint Instability / Q000175:diagnosis* / Q000601:surgery; D007719:Knee Joint / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery*; D013977:Tibia