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Vol. 64. Issue 2.
Pages 77-82 (March - April 2020)
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Vol. 64. Issue 2.
Pages 77-82 (March - April 2020)
Original
DOI: 10.1016/j.recote.2019.11.006
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
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C. García Rodrígueza,
Corresponding author
carmen.gcia@gmail.com

Corresponding author.
, C. García-Polín Lópezb, T. del Olmo Hernándeza, S. Moros Marcoa, O. Jacobo Edoa, J.L. Ávila Lafuentea
a Unidad de Miembro Superior, Hospital MAZ, Zaragoza, Spain
b Hospital Ernest Lluch, Calatayud, Zaragoza, Spain
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Statistics
Figures (1)
Tables (5)
Table 1. Grading and classification of kappa index.
Table 2. Interpretation of the result of calculation of positive and negative likelihood ratios (LR).
Table 3. Results of agreement between the 3 contrasted assumptions.
Table 4. Calculation of likelihood ratios (LR).
Table 5. Results for the calculation of values both for ultrasound (partial or complete tendon lesions) and for magnetic resonance (partial or complete tendon lesions) expressed in percentage.
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Abstract
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=0.667).

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.

Keywords:
Distal biceps
Ultrasonography
Magnetic resonance
Tendon avulsion
Resumen
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.

Palabras clave:
Bíceps distal
Ecografía
Resonancia magnética
Avulsión tendinosa

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