title: A prospective, randomized comparison of posterior stabilized versus cruciate-substituting total knee arthroplasty: a preliminary report with minimum 2-year results.
abstract: We compared 56 patients who received a PS post/cam tibial insert and 55 patients who received a more congruent anterior-lipped tibial insert. We hypothesized that clinical outcomes would be equivalent and that tourniquet time and intraoperative blood loss would differ. The mean follow-up is 45 months (30-57 months). Clinical and radiographic outcomes were equivalent for both groups, except that male PS patients received significantly more transfusions than male CS patients (P<.039) and tourniquet time was significantly longer for all patients in the PS group (P<.015). At the minimum 2-year follow-up in this ongoing study, the results demonstrate equivalent functional and radiographic outcomes of the 2 devices, and significant differences in the perioperative findings of transfusion rates and tourniquet times.
authors.affiliation: Spokane Joint Replacement Center/Orthopaedic Speciality Clinic of Spokane, Spokane, Washington.
authors.forename: David F
authors.initials: DF
authors.lastname: Scott
authors.affiliation: Spokane Joint Replacement Center/Orthopaedic Speciality Clinic of Spokane, Spokane, Washington.
authors.forename: Rachel R
authors.initials: RR
authors.lastname: Smith
mesh_terms: D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D016063:Blood Loss, Surgical; D005260:Female; D006801:Humans; D007593:Joint Instability / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D016119:Posterior Cruciate Ligament / Q000601:surgery*; D011446:Prospective Studies; D016059:Range of Motion, Articular; D013977:Tibia / Q000601:surgery; D016896:Treatment Outcome
keywords: blood loss; posterior cruciate ligament; posterior cruciate ligament-sacrificing; posterior cruciate ligament-sparing