Resumen

GAGGIOTTI, Gabriel; GAGGIOTTI, Stefano; GAGGIOTTI, Santino  y  RINGA, Julio C.. Reemplazo unicompartimental bilateral de rodilla en un tiempo quirúrgico. Resultados a mediano plazo de 86 prótesis con un seguimiento promedio de 6.2 años. Rev. Asoc. Argent. Ortop. Traumatol. [online]. 2023, vol.88, n.2, pp.164-176. ISSN 1852-7434.  http://dx.doi.org/https://doi.org/10.15417/issn.1852-7434.2023.88.2.1574.

Objective: The purpose of this article is to examine the functional outcomes, complications, and medium-term survivorship of medial or lateral bilateral simultaneous unicompartmental knee arthroplasty (bUKA) for the treatment of bilateral knee osteoarthritis. Materials and Methods: Retrospective report of patients who underwent a medial or lateral bUKA for treatment of bilateral knee osteoarthritis between April 2004 and April 2020, with a minimum follow-up of 1 year. The KSS 2011 was used for the clinical-functional evaluation of each patient. The duration of surgery, length of hospital stay, and transfusion requirements were determined. The short-term and medium-term complications were analyzed, as well as the revision rate and the prosthesis survivorship. Results: We evaluated 86 bUKAs in 43 patients with a mean follow-up of 6.1 years. The clinical and functional KSS improved from 46.1 ± 10.2 to 80.9 ± 15.9 and 22.8 ± 11.9 to 89.8 ± 18.9 respectively. Postoperative maximal flexion improved from 106.3° ± 5.2° to 125.1° ± 4.2° and flexion contracture improved from 7.5° ± 2.2° to 2.3° ± 1.6°. The mean surgical time was 178.6 minutes and the hospital stay was 39.8 hours. Two patients required transfusions. The complication rate was 6.9%. Three knees (3.5%) required revision surgery for aseptic loosening after 12, 8.6 and 7 years. The survivorship rate was 96.5%. Conclusion: Simultaneous medial or lateral bUKA provides excellent clinical-functional outcomes with a low rate of complications in patients with bilateral knee osteoarthritis.

Palabras clave : Unicompartmental knee arthroplasty; bilateral UKA (bUKA); bilateral knee osteoarthritis; bilateral knee arthroplasty; simultaneous unicompartmental arthroplasty.

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