The aim of the study is evaluate the functional outcome, complications and general health in patients undergoing knee arthrodesis.
Eighteen patients undergoing knee arthrodesis due to contraindication of primary or revision of a total knee arthroplasty (TKA). Anatomical arthrodesis was performed if there was a good contact of the two bone surfaces, whereas if it was not possible to achieve adequate femoral-tibial contact, artificial arthrodesis was performed. Function was assessed using the WOMAC score, and the health status using the SF-36.
Four patients were diagnosed with anatomical non-union arthrodesis and required a secondary surgical procedure to achieve fusion. Patients with artificial fusion did not have any secondary procedure. Patients less than 65 years-old and the patients with anatomical fusion had a better outcome in the physical role and body pain area using the SF-36 score. WOMAC index outcomes were similar in all patients, regardless of age and fusion type.
Anatomical and artificial arthrodesis of the knee achieved pain relief, acceptable function of the limb and an adequate quality of life, with the best results in patients less than 65 years-old.