title: Absence of a Tourniquet Does Not Affect Fixation of Cemented TKA: A Randomized RSA Study of 70 Patients.
abstract: We aimed to determine whether not using a tourniquet in cemented TKA would affect migration of the tibial component measured by radiosterometric analysis (RSA). Seventy patients were randomized into a tourniquet group and a non-tourniquet group and using model-based RSA, the migration of the tibial component was analyzed. Primary and secondary outcome measures were maximum total point motion (MTPM) and translations and rotations. Follow-up period was 2 years. The tibial component was well fixated in both groups and no significant difference in migration between the two groups was detected (P=0.632). Mean MTPM (SD) was 0.47 mm (0.16) in the tourniquet group and 0.45 mm (0.21) in the non-tourniquet group. Absence of tourniquet indicates that stable fixation of the tibial component can be achieved in cemented TKA.
authors.affiliation: Department of Orthopaedic Surgery, Aalborg University Hospital, Aalborg, Denmark; Orthopaedic Surgery Research Unit, Aalborg University Hospital, Aalborg, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.
authors.forename: Ashir
authors.initials: A
authors.lastname: Ejaz
authors.affiliation: Department of Orthopaedic Surgery, Aalborg University Hospital, Aalborg, Denmark; Orthopaedic Surgery Research Unit, Aalborg University Hospital, Aalborg, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.
authors.forename: Anders C
authors.initials: AC
authors.lastname: Laursen
authors.affiliation: Department of Orthopaedic Surgery, Aalborg University Hospital, Aalborg, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.
authors.forename: Thomas
authors.initials: T
authors.lastname: Jakobsen
authors.affiliation: Department of Orthopaedic Surgery, Aalborg University Hospital, Aalborg, Denmark; Orthopaedic Surgery Research Unit, Aalborg University Hospital, Aalborg, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.
authors.forename: Sten
authors.initials: S
authors.lastname: Rasmussen
authors.affiliation: Department of Orthopaedic Surgery, Aalborg University Hospital, Aalborg, Denmark.
authors.forename: Poul Torben
authors.initials: PT
authors.lastname: Nielsen
authors.affiliation: Department of Orthopaedic Surgery, Aalborg University Hospital, Aalborg, Denmark; Orthopaedic Surgery Research Unit, Aalborg University Hospital, Aalborg, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.
authors.forename: Mogens B
authors.initials: MB
authors.lastname: Laursen
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee; D005260:Female; D006801:Humans; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery; D059869:Radiostereometric Analysis; D013977:Tibia / Q000601:surgery; D014111:Tourniquets / Q000706:statistics & numerical data*; D016896:Treatment Outcome
keywords: RCT; RSA; TKA; implant fixation; tourniquet