Radiographic Diagnosis of Tarsal Coalition

Crim, Julia R.; Kjeldsberg, Kristina M

doi:10.2214/ajr.182.2.1820323

Cited by 134 publications

(76 citation statements)

References 12 publications

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“…The tarsal coalition decreases the normal motion of the hindfoot, and the talonavicular joint develops compensatory increased motion; consequently, the superior aspect of the articular facet of the talar head shows a focal bony prominence related to the formation of a traction osteophyte at the talar insertion of the dorsal talonavicular ligament. The sensitivity and specificity of the talar beak sign in detecting talocalcaneal coalition are 48% and 91%, respectively, thus making it a helpful sign if present, but the absence of the talar beak cannot be used as a helpful distinguisher [5]. It is important to note that there are several other osseous outgrowths that occur along the dorsal aspect of the talus that are not associated with tarsal coalition.…”

Section: Intra-articular Talocalcaneal (Subtalar) Coalitionsmentioning

confidence: 99%

“…It must be stressed that the radiograph needs to be obtained with the patient positioned properly, as improper positioning can either create a false sense of the sign being present or a false negative absence of the sign. The sensitivity has been reported as high as 100%, which makes absence of the sign a reliable way to exclude talocalcaneal coalition [5]. However, the specificity of the sign is only 42% making its presence rather nonspecific [5].…”

Section: Intra-articular Talocalcaneal (Subtalar) Coalitionsmentioning

confidence: 99%

“…The sensitivity has been reported as high as 100%, which makes absence of the sign a reliable way to exclude talocalcaneal coalition [5]. However, the specificity of the sign is only 42% making its presence rather nonspecific [5].…”

Section: Intra-articular Talocalcaneal (Subtalar) Coalitionsmentioning

confidence: 99%

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Tarsal Coalitions: Radiographic, CT, and MR Imaging Findings

Lawrence

Rolen

Haims

et al. 2014

HSS Journal®: The Musculoskeletal Journal of Hospital for Speci

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Background: Tarsal coalitions affect up to 13% of the population and can be a cause of chronic ankle and hindfoot pain. They can be subdivided as osseous, cartilaginous, or fibrous types, each with unique radiographic, CT, and MR imaging findings. In particular, MR imaging offers the unique ability to determine the exact type of tarsal coalition that is present as well as whether any associated soft tissue abnormalities are present. Questions/Purposes: The purposes of this paper were to (1) review the anatomy of the hindfoot; (2) review the radiographic, CT, and MR imaging findings of tarsal coalitions; and (3) review the imaging appearance of the specific types of tarsal coalitions. Methods: Online searches were performed using Google Scholar with the search criteria of "tarsal coalition," "hindfoot anatomy," and "subtalar coalition," and limiting the searches to papers published in the last 10 years in major radiology journals. Results: The anatomy of the hindfoot is complex but essential to understand. There are various radiographic, CT, and MR imaging findings that can be consistently noted in cases of tarsal coalition. The specific types of tarsal coalition demonstrate characteristic imaging findings. Conclusions: Knowledge of the normal anatomy of the foot, in particular the hindfoot, combined with the knowledge of the imaging characteristics of different histologic subtypes of coalitions (osseous, cartilaginous, and fibrous) is essential for interpreting radiographic, CT, and MR images of the ankle and foot.

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Section: Intra-articular Talocalcaneal (Subtalar) Coalitionsmentioning

confidence: 99%

Section: Intra-articular Talocalcaneal (Subtalar) Coalitionsmentioning

confidence: 99%

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Tarsal Coalitions: Radiographic, CT, and MR Imaging Findings

Lawrence

Rolen

Haims

et al. 2014

HSS Journal®: The Musculoskeletal Journal of Hospital for Speci

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“…Según un estudio retrospectivo de Crim and Kjeldsberg 24 el signo de la nariz del oso hormiguero en las coaliciones calcáneo-escafoideas posee una sensibilidad y especificidad de 72% y 94% respectivamente, confirmando que la evaluación radiológica de rutina es una herramienta de detección valiosa para la coalición tarsal, incluso cuando se analiza por observadores inexpertos 25 . En la coalición astrágalo-calcánea la tomografía es el estudio de elección para confirmar el diagnóstico 7,26 .…”

Section: Pruebas De Imagenunclassified

Coalición calcáneo-navicular asociada a pie plano rígido infantil. A propósito de un caso

Becerrica

Pedro

Ortega

et al. 2016

Rev. Int. Cienc. Podol.

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Resumen. Las coaliciones tarsales (unión fibrosa, cartilaginosa u ósea congénita entre dos huesos) a menudo son asociadas a una deformidad de pie plano en niños. Normalmente se presenta con esguinces de tobillo recurrentes o con inicio insidioso de un pie plano rígido doloroso y con limitación al movimiento de las articulaciones mediotarsianas y subastragalina. El diagnóstico clínico se confirma con radiografía, tomografía axial computerizada (TAC) y resonancia magnética nuclear (RMN). El signo de la nariz del oso hormiguero es causado por un alargamiento tubular del proceso anterior del calcáneo que se acerca o se superpone con el escafoides tarsiano y se asemeja a la nariz de un oso hormiguero en una radiografía lateral del pie o tobillo. El tratamiento de esta unión es primeramente sintomático, pero si el dolor persiste debe ser quirúrgico. Se presenta el caso de un niño de 10 años con coalición calcáneo-navicular bilateral asociada a pie plano valgo rígido. Palabras clave: Coalición tarsal; pie plano; niños; diagnóstico; tratamiento.[en] Calcaneus-navicular coalition associated to flatfoot in a child. A case report Abstract. Tarsal coalition (a congenital fibrous, cartilaginous or bony connection between two bones) often leads to a flatfoot deformity in children. Usually it presents with recurrent ankle sprains or insidious onset of a painful rigid flatfoot and movement limitation of midtarsal and subtalar joints. Clinical diagnosis is confirmed by X-rays, computed axial tomography and nuclear magnetic resonance. The anteater nose sign is caused by a tubular elongation of the anterior process of the calcaneus that approaches or overlaps the tarsal scaphoid (navicular) and resembles the nose of an anteater on a lateral foot or ankle radiograph. The treatment of this union is primarily symptomatic but if the pain persists must be surgical. For a child of 10 years with bilateral calcaneus -navicular coalition associated with valgus rigid flatfoot arises.

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“…Основным методом диагностики тарзальных коалиций при первичном обращении пациен-тов является рентгенография стоп в стандарт-ных проекциях: в прямой, боковой, в положе-нии пациента стоя [4]. При необходимости для уточнения диагноза исследование выполняют в дополнительных специальных проекциях.…”

Section: -1 (71)unclassified

Diagnostic value of radiological signs..86 of tarsal coalitions

Sapogovkiy

Kenis

Khusainov

2014

Traumatology and Orthopedics of Russia

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Tarsal coalition - is an abnormal fusion between two or more tarsal bones which can lead to foot pain, progressive foot deformity, and frequent ankle sprains. Radiological diagnosis of tarsal coalitions on the standard plain radiographs is difficult because of indirect visualization of the fusion zone. Computed tomography is helpful for confirmation of the diagnosis. Purpose: to determine diagnostic value of indirect radiological signs of tarsal coalitions. Material and methods. The analysis of the radiographs of 25 patients with confirmed tarsal coalitions and the radiographs of 37 patients with valgus deformities of feet without tarsal coalitions. Results. The sensitivity and specificity of tarsal coalitions radiological signs were determined. Sensitivity of the "anteater nose" in our study was 92,3%, specificity - 94,31%; C-sign had sensitivity 88,89% and specificity - 77,08%; “talar beak” symptom had sensitivity 36,36 percent and specificity - 97,14%. Conclusion. Sensitivity and specificity of indirect radiological signs of tarsal coalitions determined in our study have sufficient diagnostic value, and computed tomography of the foot should be done for confirmation of diagnosis.

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Radiographic Diagnosis of Tarsal Coalition

Abstract: Routine anteroposterior and lateral unenhanced radiographs are a valuable screening tool for tarsal coalition, even when used by inexperienced observers. The newly described signs increase sensitivity of radiographic diagnosis.

Cited by 134 publications

References 12 publications

Tarsal Coalitions: Radiographic, CT, and MR Imaging Findings

Tarsal Coalitions: Radiographic, CT, and MR Imaging Findings

Coalición calcáneo-navicular asociada a pie plano rígido infantil. A propósito de un caso

Diagnostic value of radiological signs..86 of tarsal coalitions

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