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.

中文翻译：

---

副前外侧距骨小平面，骨髓水肿和联合之间的相关性。

目的本研究的目的是确定前侧距骨距骨小平面（AALTF）的患病率。评估AALTF，局灶性邻接骨髓水肿（FABME）和鼻窦睑水肿之间的关系；并利用踝部MR图像研究AALTF患者骨联合的患病率。材料与方法回顾了5-T踝部MR图像，检查是否存在AALTF，FABME，鼻窦睑水肿，关节，以及关节的位置和类型（软骨，纤维和骨）。进行多变量分析以检查AALTF和其他变量之间的相关性。结果共纳入391例患者（年龄范围5-86岁；平均年龄45岁）。3.6％（14/391）的患者存在AALTF。女性的AALTF患病率为2％，男性为6.6％。AALTF和FABME（9/14，p <0.05），鼻窦水肿（13/14，p <0.05）和联合（4/14，p <0.05）之间存在显着关联。结论AALTF经常在踝关节MRI上检测到，并与BME，鼻窦水肿和距下联合显着相关。有骨联合的患者应评估是否同时存在AALTF。