Correlation between the accessory anterolateral talar facet, bone marrow edema, and tarsal coalitions
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SCIENTIFIC ARTICLE
Correlation between the accessory anterolateral talar facet, bone marrow edema, and tarsal coalitions Josephina A. Vossen 1
&
Mashya Abbassi 2 & Yanjun Qian 3 & Curtis W. Hayes 1 & Peter J Haar 1 & Kevin B Hoover 1
Received: 9 September 2019 / Revised: 16 October 2019 / Accepted: 28 October 2019 # ISS 2019
Abstract Objective The purposes of this study was to determine the prevalence of the accessory anterolateral talar facet (AALTF); to evaluate the relationship between AALTF, focal abutting bone marrow edema (FABME), and sinus tarsi edema; and to study the prevalence of tarsal coalitions in patients with the AALTF utilizing ankle MR images. Materials and methods 5-T ankle MR images were reviewed for the presence of AALTF, FABME, sinus tarsi edema, tarsal coalition, and location and type of coalition (cartilaginous, fibrous, and osseous). Multivariate analysis was performed to examine the correlation between AALTF and the other variables. Results Three hundred ninety-one consecutive patients were included (age range 5–86 years; mean age 45 years). An AALTF was present in 3.6% (14/391) of patients. The AALTF prevalence was 2% in women and 6.6% in men. There was a significantly association between AALTF and FABME (9/14, p < 0.05), sinus tarsi edema (13/14, p < 0.05), and tarsal coalition (4/14, p < 0.05). Conclusion AALTF is relatively often detected on MRI of the ankle and significantly associated with BME, sinus tarsi edema, and subtalar coalition. Patients with a tarsal coalition should be evaluated for the concurrent presence of an AALTF. Keywords Accessory anterolateral talar facet . Coalition . Hindfoot . Focal abutting bone marrow edema . Sinus tarsi edema
Introduction Nontraumatic midfoot pain is common among adults and a frequent reason for primary care visits [1]. The ankle and midfoot osseous structures have a complex composition and allow both for rotation and stability. The midtarsal joints rotate
at two axes, resulting in complex motion [2]. Any anatomic variant that alters biomechanics and places excessive stress on the foot can contribute to pain and degeneration [3]. The accessory anterolateral talar facet (AALTF) is an anatomic variant of the talocalcaneal articulation (Fig. 1). In 1904 Sewell described the facies externa accessoria corporis tali as
* Josephina A. Vossen [email protected] Mashya Abbassi [email protected]
Kevin B Hoover [email protected] 1
Yanjun Qian [email protected]
Department of Radiology; Division of Musculoskeletal Imaging and Intervention, Virginia Commonwealth University Medical Center, 1250 E Marshall St, Richmond, VA 23298, USA
2
Curtis W. Hayes [email protected]
Department of Radiology, Boston University School of Medicine, 820 Harrison Avenue, Boston, MA 02118, USA
3
Department of Statistical Sciences and Operations Research, Virginia Commonwealth University, 1015 Floyd Avenue, Richmond, VA 23284, USA
Peter J Haar [email protected]
Skeletal Radiol
an accessory facet situated at the junction of the e
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