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Vol. 43. Issue 2.
Pages 63-68 (January 2001)
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Vol. 43. Issue 2.
Pages 63-68 (January 2001)
Valoración ecográfica de la seudoartrosis postraumática del escafoides carpiano*
Ultrasound assessment of posttraumatic pseudoarthrosis of the carpal scaphoid
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Luis Sarría
Corresponding author
hrs.s.ra-yos@cfnavarra.es

Correspondencia: LUIS SARRÍA OCTAVIO DE TOLEDO. Servicio de Radiología. Hospital «Reina Sofía» Ctra. de Tarazona, s/n. 31500 Tudela. Navarra.
, Susana García, Rosa Cozcolluela, Teresa Martínez-Berganza, Víctor Villacampa
Servicio de Radiología. Hospital «Reina Sofía». Tudela. Navarra
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Resumen
Objetivos

Evaluar la utilidad de la ecografía en el diagnóstico de la seudoartrosis postraumática del escafoides carpiano. Describir los ha-llazgos ecográficos observados en estos pacientes.

Material y métodos

Se han estudiado 11 pacientes diagnosticados de seudoartrosis de escafoides carpiano. El estudio se realizó con son-da de 7,5 MHz. Los signos valorados fueron la irregularidad de la superficie cortical, existencia de solución de continuidad o «brecha», au-mento de partes blandas periescafoidea y su vascularización mediante método Doppler color. Este estudio se hizo de manera comparativa res-pecto a la mano contralateral.

Resultados

En todos los pacientes se observó irregularidad cortical y en seis de ellos «brecha» en la cortical ósea de la superficie palmar del escafoides. En 10 pacientes se detectó aumento de partes blandas con aumento de la vascularización. Un paciente con fractura no conso-lidada no presentó brecha ni aumento de partes blandas demostrando la cirugía integridad de la cortical ósea (fractura en «cacahuete»).

Conclusiones

La ecografía es un método útil en el diagnóstico de la seudoartrosis de escafoides carpiano. La existencia de un aumento de partes blandas periescafoidea, con vascularización incrementada, en pacientes con antecedente de fractura de escafoides superior a seis a ocho semanas sugiere fallo en la consolidación ósea.

Palabras clave:
Seudoartrosis
Escafoides
Ecografía
Fractura
Musculoesquelético
Carpo
Abstract
Objectives

To evaluate the utility of ultrasonography in the diagnosis of posttraumatic pseudoarthrosis of the carpal scaphoid, describing the ultrasound findings observed in the patients.

Material and methods

Eleven patients diagnosed as having pseudoarthrosis of the carpal scaphoid were studied using a 7.5-MHz probe. The features assessed were irregularity of the cortical surface, presence of a gap in its continuity and swelling of periscaphoid soft tissue, the vascularity of which was studied by means of color Doppler. The findings were compared with those observed in the contralateral hand.

Results

Cortical irregularity was observed in all the patients and six presented a gap in the cortex of the palmar surface of the scaphoid. Ten had soft tissue swelling with increased vascularity. One patient with an ununited fracture showed no gap or soft tissue swelling; the bone cortex was found to be intact intraoperatively.

Conclusions

Ultrasound is useful in the diagnosis of pseudoarthrosis of the carpal scaphoid. Swelling of the periscaphoid soft tissue with increased vascularity in patients whose fracture occurred more than 6 to 8 weeks earlier suggests nonunion of the injured bone.

Key words:
Pseudoarthrosis
Scaphoid
Ultrasonography
Fracture
Musculoskeletal
Carpus

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