<b>“Absent Middle Facet”:</b> A Sign on Unenhanced Radiography of Subtalar Joint Coalition

Liu, Patrick T.; Roberts, Catherine C.; Chivers, F. Spencer; Kile, Todd A.; Claridge, Richard J.; DeMartini, Joseph R; Kenrich, Robert E; Freed, Lewis

doi:10.2214/ajr.181.6.1811565

Cited by 30 publications

(12 citation statements)

References 17 publications

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“…The finding occurs on well-positioned lateral radiographs of the foot where either a complete osseous bar or the obliquity of the narrowed cleft between the bones in non-osseous coalition obscures the middle subtalar facet (Fig. 5) [14]. 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.…”

Section: Intra-articular Talocalcaneal (Subtalar) Coalitionsmentioning

confidence: 99%

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%

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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“…1). 9 Oblique radiographic projections can be performed to improve the delineation of the joint surfaces.…”

Section: Radiographymentioning

confidence: 99%

“…13). 9,26 The latter is believed to be caused by traction enthesophytes at the site of the dorsal talonavicular joint capsule attachment from the abnormal motion of the middle talocalcaneal region. Talar beaking is not specific to talocalcaneal coaltion.…”

Section: Imaging Of Talocalcaneal Coalitionmentioning

confidence: 99%

Imaging of the Subtalar Joint

Lopez‐Ben

2015

Foot and Ankle Clinics

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“…[2][3][4] The prevalence of tarsal coalition has been estimated from less than 1% to 13% of the population, with 50% of the cases occurring bilaterally. [1][2][3][5][6][7][8][9] The 2 most common locations of tarsal coalition are the talocalcaneal and calcaneonavicular joints. 1,4,5,8,9 Tarsal coalitions are described based on the progressive morphology of the coalition, from fibrous (syndesmosis) to cartilaginous (synchondrosis) and finally to osseous (synostosis).…”

mentioning

confidence: 99%

“…Ankle sprains are considered a noncongenital, traumatic contributing factor to tarsal coalition. 3,7 Tarsal coalition is a static condition and is not itself the cause of pain; however, the progressive ossifications that occur at the site of the coalition limit the normal joint ROM and cause pain. Based on the progressive nature of the ossifications at the coalition, foot mobility and ambulation become painful and are mechanically altered based on the severity of pain.…”

mentioning

confidence: 99%

Bilateral Tarsal Coalition in a National Collegiate Athletic Association Division I Basketball Player: A Case Report

Suits¹,

Oliver

2012

Journal of Athletic Training

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Objective To present a case of bilateral subtalar joint coalition in a National Collegiate Athletic Association Division I basketball player and the treatment plan that was used to manage the coalition from the beginning of conference play through the postseason. Background A 20-year-old male basketball athlete (height = 182.8 cm, mass = 83.4 kg) presented with bilateral subtalar joint tarsal coalition that became symptomatic in 2006 and resulted in constant pain with any form of activity. Differential Diagnosis Traumatic injury of the talocalcaneal joint. Treatment Nonsurgical intervention of conservative therapy was elected. Uniqueness Less than 13% of the overall population is affected with tarsal coalition, so it is safe to assume that very few athletes competing at the collegiate or elite level suffer from this condition. This is the first report in the literature to document conservative manual therapies used to manage the symptoms of subtalar joint tarsal coalition in a Division I basketball player. Conclusions After the intensive treatment program for tarsal coalition was implemented, the patient experienced pain relief and was able to continue to compete at a competitive level. This case represents the need to further explore and document a conservative treatment protocol for tarsal coalition.

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“Absent Middle Facet”: A Sign on Unenhanced Radiography of Subtalar Joint Coalition

Cited by 30 publications

References 17 publications

Tarsal Coalitions: Radiographic, CT, and MR Imaging Findings

Tarsal Coalitions: Radiographic, CT, and MR Imaging Findings

Imaging of the Subtalar Joint

Bilateral Tarsal Coalition in a National Collegiate Athletic Association Division I Basketball Player: A Case Report

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