Abstract
BackgroundTo compare the efficacy and safety of simultaneous vs staged unicompartmental knee arthroplasty (UKA) for bilateral unicompartmental osteoarthritis of the knee.MethodsWe performed a retrospective analysis of prospectively collected data on 93 patients with bilateral knee medial compartment arthritis underwent simultaneous UKA (Group A, 39) or staged UKA (Group B, 54 cases) from January 2008 to December 2015. Group A: 6 males and 33 females aged 64.9 ± 7.7 years; Group B: 5 males and 49 females aged 64.2 ± 6.4 years. There were no statistically significant differences in pre-operative age, sex ratio, or body weight index between the groups (P > 0.05). Groups were compared in terms of total anesthesia time, volume of drainage, blood transfusion rate, hemoglobin level on post-operative day 3, total post-operative inpatient days, treatment expenses, post-operative therapeutic effect (KSS scores), and complications.ResultsAll patients had follow-up visits post-operatively. The follow-up visit interval was 32–133 months and 41.9 months on average. Total anesthesia time, postoperative length of hospital stay, and hospitalization expenses in Group A were significantly less than those of Group B (P < 0.05). Hemoglobin levels in Group A were significantly lower than those of Group B at post-op day 3 (P < 0.05). However, no significant differences in volume of drainage, the rate of transfusion, complications, and KSS scores were detected between Groups A and B (P > 0.05).ConclusionsBoth simultaneous and staged UKA achieved the desired therapeutic effect in treatment of bilateral knee medial compartment arthritis. However, simultaneous UKA reduced the cost and the postoperative length of hospital stay without increasing post-operative complications.
Highlights
To compare the efficacy and safety of simultaneous vs staged unicompartmental knee arthroplasty (UKA) for bilateral unicompartmental osteoarthritis of the knee
What’s more, it shortens the length of hospital stay, and rehabilitation time [1,2,3]. .Previous studies have shown that 1/3 of patients who underwent total knee replacement (TKA) suffered from bilateral knee joint degeneration
We divided the patients into two groups according to surgical methods: Group A and Group B
Summary
To compare the efficacy and safety of simultaneous vs staged unicompartmental knee arthroplasty (UKA) for bilateral unicompartmental osteoarthritis of the knee. Compared with total knee replacement (TKA), UKA is less invasive, with less trauma and less bleeding. .Previous studies have shown that 1/3 of patients who underwent TKA suffered from bilateral knee joint degeneration. Patients with bilateral arthritis requiring surgical treatment have two options: a staged procedure with a period of time between operations, and a simultaneous procedure, either sequentially by a single surgical team, or simultaneously by two surgical teams. Simultaneous surgery may reduce hospitalization expenses, length of hospital stay, and rehabilitation time [7,8,9,10]. In spite of various advantages of simultaneous surgery, some investigators believe that it increases bleeding, operation time, perioperative period complications, revision rate, death rate, and blood transfusion rate [11, 12]
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