title: A comparison of the noise generated from different types of knee prostheses.
abstract: After total knee arthroplasty (TKA), patients may experience noise from their replaced knee. A prospective study was conducted with 465 (930 knees) patients to evaluate noise after bilateral TKA. A different randomly selected prosthesis was used on each side. The prostheses used were medial pivot (MP), anterior and posterior cruciate ligament retaining (ACL-PCL), posterior cruciate ligament retaining (PCL), posterior cruciate-substituting (PS), or mobile bearing (MB). The evaluation included the patients' responses to questions about noise after both their TKAs. Noise-related symptoms were reported by 12% of the patients with MP prostheses, 4% of patients with ACL-PCL, 31% of patients with PCL, 33% of patients with PS, and 42% of patients with MB. Occasionally, patients were concerned or dissatisfied with this phenomenon. Noise was less common with TKAs that used MP and ACL-PCL knee prostheses than with TKAs that used other prostheses.
authors.affiliation: Department of Orthopedic Surgery, Orthopedics International, Seattle, WA, USA. bonerecon@aol.com
authors.forename: James W
authors.initials: JW
authors.lastname: Pritchett
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee; D005260:Female; D006801:Humans; D007720:Knee Prosthesis / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D009622:Noise; D020370:Osteoarthritis, Knee / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D017060:Patient Satisfaction; D011446:Prospective Studies; D011474:Prosthesis Design / Q000009:adverse effects; D016059:Range of Motion, Articular; D012307:Risk Factors; D016896:Treatment Outcome