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The natural history of a newly developed flexion contracture following primary total knee arthroplasty |
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| Authors: | Andres Anania Matthew P Abdel Yuo-yu Lee Stephen Lyman Alejandro González Della Valle |
| Institution: | 2. Department of Orthopaedic Surgery, Hospital Naval “Pedro Mallo”, Buenos Aires, Argentina 1. Hospital for Special Surgery, Weill Cornell Medical College of Cornell University, New York, NY, USA 3. Department of Orthopaedic Surgery at the Hospital for Special Surgery, Weill Medical College of Cornell University, 535 East 70th Street, New York, NY, 10021, USA 4. Department of Biostatistics, Hospital for Special Surgery, New York, NY, USA |
| Abstract: | PurposeWe investigated the incidence, natural history, and functional consequences of a newly developed flexion contracture after total knee arthroplasty (TKA).MethodsForty patients with full knee extension preoperatively who developed a postoperative flexion contracture were match-paired 1:2 with 80 patients who had full extension. The incidence of a newly developed flexion contracture, ROM, and Knee Society scores (KSS) at six weeks, four months, and one year were analysed.ResultsThe incidence of a new flexion contracture at six weeks was 14 %, but diminished to 5 % and 0.3 % at four months and one year, respectively. One year after surgery, there was no difference in the KSS (p?=?0.5).ConclusionsThis study showed that the majority of patients who developed a new flexion contracture after TKA have full knee extension one year postoperatively. Moreover, knee extension and KSS at one year are equivalent to those patients who did not developed a flexion contracture. |
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