Rotura del tendón distal del bíceps: potencia diagnóstica de la ecografía y la resonancia magnética / Distal biceps tendon rupture: diagnostic strength of ultrasonography and magnetic resonance

OBJETIVO: El objetivo fundamental de este estudio es determinar la concordancia entre dos pruebas radiológicas, la ecografía y la resonancia magnética, para el diagnóstico de rotura del tendón distal del bíceps braquial. MATERIAL Y MÉTODO: Se realizó un estudio retrospectivo de pacientes a lo largo de 3 años a los que se realizó cirugía abierta de reanclaje de tendón distal de bíceps y cuyo diagnóstico preoperatorio se complementó con ecografía, con resonancia magnética o bien con ambas. Se calculó la concordancia mediante el coeficiente kappa de Cohen (k). RESULTADOS: Se analizaron datos de 79 pacientes. La concordancia fue excelente entre resonancia y hallazgos quirúrgicos (k=0,950), y se obtuvo un índice de concordancia bueno tanto entre ecografía y cirugía (k=0,706) como entre ecografía y resonancia magnética (k=0,667). CONCLUSIONES: Tanto resonancia como ecografía se podrían considerar técnicas diagnósticas fiables para la determinación preoperatoria de rotura aguda del tendón distal del bíceps braquial en pacientes con mecanismo y clínica congruentes

OBJECTIVE: The main purpose of this study is to determine the agreement between two radiological tests, ultrasonography and magnetic resonance, in the diagnosis of distal brachial biceps tendon injury. MATERIAL AND METHOD: A retrospective study was made of patients over 3 years who underwent distal brachial biceps tendon reattachment open surgery, and whose preoperative diagnosis was complemented either by ultrasonography, by magnetic resonance or both. The agreement was calculated by Cohen's kappa coefficient (k). RESULTS: Information of 79 patients was analyzed. The concordance was excellent between resonance and surgical findings (k=.950), and a good Cohen's kappa coefficient was also achieved between both ultrasonography and surgery (k=.706) and between information of sonography and magnetic resonance (k=.667). CONCLUSIONS: Resonance and ultrasonography could be considered reliable diagnostic tests to determine the acute rupture of the distal brachial biceps tendon in patients with consistent aetiology and physical examination

Distal biceps tendon rupture: diagnostic strength of ultrasonography and magnetic resonance. / Rotura del tendón distal del bíceps: potencia diagnóstica de la ecografía y la resonancia magnética.

OBJECTIVE: The main purpose of this study is to determine the agreement between two radiological tests, ultrasonography and magnetic resonance, in the diagnosis of distal brachial biceps tendon injury. MATERIAL AND METHOD: A retrospective study was made of patients over 3 years who underwent distal brachial biceps tendon reattachment open surgery, and whose preoperative diagnosis was complemented either by ultrasonography, by magnetic resonance or both. The agreement was calculated by Cohen's kappa coefficient (k). RESULTS: Information of 79 patients was analyzed. The concordance was excellent between resonance and surgical findings (k=.950), and a good Cohen's kappa coefficient was also achieved between both ultrasonography and surgery (k=.706) and between information of sonography and magnetic resonance (k=.667). CONCLUSIONS: Resonance and ultrasonography could be considered reliable diagnostic tests to determine the acute rupture of the distal brachial biceps tendon in patients with consistent aetiology and physical examination.