title: Is bilateral total knee arthroplasty staged at a one-week interval safe? A matched case control study.
abstract: Controversy surrounds the safety of bilateral total knee arthroplasty (TKA) and whether staging the procedures one week apart represents a safer option. A consecutive series of 234 patients underwent either a simultaneous (103 patients) or staged bilateral TKA (131 patients) from 2007 to 2012 and were compared to a matched control group of unilateral TKA (131 patients). Staged patients had no difference in one-year complication rate when compared to simultaneous bilateral TKA and the matched unilateral TKA control group (15% vs. 19% vs. 15%, P=0.512). There was also no difference in perioperative complications (10% vs. 14% vs. 7%, P=0.231) or 90-day readmissions (8% vs. 4% vs. 4%, P=0.295). In selected patients with bilateral knee OA, TKA staged at a one-week interval is a safe alternative.
authors: University of Pennsylvania, Department of Orthopaedic Surgery, Penn Presbyterian Medical Center, Philadelphia, Pennsylvania.
authors: P Maxwell
authors: PM
authors: Courtney
authors: University of Pennsylvania, Department of Orthopaedic Surgery, Penn Presbyterian Medical Center, Philadelphia, Pennsylvania.
authors: Christopher M
authors: CM
authors: Melnic
authors: University of Pennsylvania, Department of Orthopaedic Surgery, Penn Presbyterian Medical Center, Philadelphia, Pennsylvania.
authors: Hassan
authors: H
authors: Alosh
authors: University of Pennsylvania, Department of Orthopaedic Surgery, Penn Presbyterian Medical Center, Philadelphia, Pennsylvania.
authors: Roshan P
authors: RP
authors: Shah
authors: University of Pennsylvania, Department of Orthopaedic Surgery, Penn Presbyterian Medical Center, Philadelphia, Pennsylvania.
authors: Charles L
authors: CL
authors: Nelson
authors: University of Pennsylvania, Department of Orthopaedic Surgery, Penn Presbyterian Medical Center, Philadelphia, Pennsylvania.
authors: Craig L
authors: CL
authors: Israelite
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects* / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery*; D012189:Retrospective Studies; D013997:Time Factors
keywords: bilateral total knee arthroplasty; complications; readmissions; safety; staged procedure