Resumen

MARQUINA MORALEDA, Vicente et al. Prótesis unicompartimental de rodilla. Resultados clínico-radiográficos y análisis de la supervivencia del implante. Rev. Asoc. Argent. Ortop. Traumatol. [online]. 2022, vol.87, n.6, pp.772-780. ISSN 1852-7434.  http://dx.doi.org/https://doi.org/10.15417/issn.1852-7434.2022.87.6.1540.

Objective: To assess the clinical and radiological outcomes of patients who underwent a unicompartmental knee arthroplasty (UKA), as well as the complication rate and implant survival. Materials and Methods: We present a retrospective descriptive study of 68 consecutive patients (70 knees) who underwent UKA between 2013 and 2020, with an average follow-up of 57.7 months (range 24-105) and an average age of 61 years (range 34-79). 46.5% of the patients were male. The average BMI was 29.9 (range 20-39). The most frequent etiology was osteoarthritis of the medial femorotibial compartment with a varus <7°. To assess the outcomes, the visual analog scale (VAS) for pain and the Knee Society Score (KSS) were used. The complication and implant survival rates were evaluated. Results: The average decrease in the VAS pain scale was 4.4±1.9. The average score on the postoperative KSS functional and clinical scales were 77.4±13.7 and 70.2±17.7, respectively. The postoperative complication rate was 7% (5 cases). The surgical reoperation rate was 15.5% (11 patients): nine cases for persistent pain, one case for joint stiffness, and one case for aseptic loosening. Conclusions: UKA is an effective therapeutic option for patients with unicompartmental knee osteoarthritis, providing good clinical results with an acceptable rate of complications; however, it provides a considerable implant revision rate.

Palabras clave : Unicompartmental prosthesis; knee; unicompartmental involvement; survival.

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