For patients with advanced degenerative disease and deformities of both knees who desire a single rehabilitation period, staging total knee arthroplasty in each knee a week apart is a safe alternative, particularly for patients with medical comorbidities precluding a simultaneous operation, according to study results.
Researchers compared a consecutive series of 234 patients who underwent either a simultaneous or staged bilateral total knee arthroplasty (TKA) to a matched-control group of unilateral TKA.
Compared with patients in the staged and unilateral groups, study results showed patients in the simultaneous group were younger and had a lower body mass index, as well as lower American Society of Anesthesiologists scores and a lower mean Charlson Comorbidity Index.
Low overall rates of complications were found among patients who underwent staged and simultaneous procedures; however, there was no significant difference when compared with unilateral TKA, according to the researchers.
Between the staged, simultaneous and unilateral groups, the researchers found no difference in major grade IV complications and no statistical difference with regard to 90-day hospital readmission, perioperative complications during the index hospital admission or reoperation at any time.
Disclosures: Israelite and Nelson are paid consultants for Zimmer. Nelson is also a board member for the Gladden Orthopaedic Society.