Validez de la radiografía en el diagnóstico de la enfermedad degenerativa articular de rodilla. Hospital José Carrasco Arteaga, Cuenca, Ecuador, 2017-2018

Abstract

Background: Osteoarthritis is the most common form of arthritis and the main cause of disability in the elderly population. Osteoarthritis has been evaluated with an X-ray, which shows bone characteristics, which include marginal osteophytes, sclerosis and narrowing of the joint space, is also valued with magnetic resonance, being a less accessible, high cost, not available in all hospitals in the country. Objective: To determine the validity of the X-ray in the diagnosis of knee joint degenerative disease. Methodology: diagnostic test validation study with 202 patients who attended the radiology department of the José Carrasco Arteaga Hospital in the city of Cuenca from February 2017 to January 2018, it was included to patients who required a knee radiography and later to this one nuclear magnetic resonance (gold test). Patients will be taken as a positive result for degenerative degeneration due to radiography, those that meet the radiographic criteria. The information was processed in SPSS software obtaining sensitivity, specificity, positive and negative predictive value, reason of positive and negative likelihood. Results: 92.11% of sensitivity and 72% of specificity were obtained, VPP of 90.01%, VPN 75%, negative probability ratio of 3.29. Prevalence of degenerative knee disease of 75.25%. Conclusions: The radiography is useful for the diagnosis of knee degenerative disease