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目的分析糖尿病足(DF)患者骰骨病变的MRI及X线表现。方法回顾性分析124例不同类型的足部病变患者的MRI、X线资料,其中DF组54例,非DF组70例,观察两组患者骰骨信号改变、单纯骨髓水肿、骨髓水肿合并骨折、骰骨与周围骨的关系的MRI、X线的差异。结果两组患者骰骨信号改变、单纯骨髓水肿、骨髓水肿合并骨折的差异均有统计学意义(P均<0.05)。DF组中,18例(18/54,33.33%)表现为单纯骨髓水肿,T1WI呈等低信号,T2WI呈高信号,增强扫描无明显强化;非DF组中,8例(8/70,11.43%)单纯骨髓水肿。DF组中,6例(6/54,11.11%)表现为骨髓水肿合并骨折,骨折T1WI呈线样、模糊低信号影,骨皮质不连续,仅1例骰骨骨折X线平片可见;非DF组中,1例(1/70,1.43%)表现为骨髓水肿合并骨折,X线平片不可见。DF组,1例骰骨骨髓炎,3例骰骨周围关节腔积液,2例合并夏科关节病;非DF组1例可见关节腔积液。结论 DF患者较非DF患者骰骨更易受损,出现骨髓水肿和骨折,结合MR影像特征有利于对DF患者骰骨病变的诊断。
Objective To analyze the MRI and X-ray findings of cuboid lesions in patients with diabetic foot (DF). Methods The MRI and X-ray data of 124 patients with different types of foot lesions were retrospectively analyzed. Among them, 54 cases in DF group and 70 cases in non-DF group were observed. The changes of cuboid signal, simple bone marrow edema, bone marrow edema and fracture, The relationship between the cuboid bone and the bone around the MRI, X-ray differences. Results There were significant differences in the signals of cuboid bone, simple bone marrow edema and bone marrow edema with fracture in both groups (all P <0.05). DF group, 18 cases (18/54, 33.33%) showed simple bone marrow edema, T1WI showed low signal, T2WI showed high signal, enhanced scan no significant enhancement; non-DF group, 8 cases (8 / 70,11.43 %) Simple bone marrow edema. DF group, 6 cases (6 / 54,11. 1%) showed bone marrow edema with fracture, fracture T1WI was linear, fuzzy low signal, cortical discontinuity, only 1 case of cuboid fracture plain X-ray; In DF group, 1 case (1/70, 1.43%) showed bone marrow edema with fracture, X-ray was invisible. DF group, one case of osteomyelitis osteomyelitis, three cases of synovial effusion around the cuboid bone, and two cases of Sickarth arthrosis. One case of non-DF group showed joint effusion. CONCLUSIONS: DF patients are more vulnerable to the formation of cuboid bone than non-DF patients with bone marrow edema and fractures. Combining the features of MR images is helpful for the diagnosis of cuboid lesions in DF patients.