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| MRI Imaging Features of Congenital Tibial Pseudarthrosis in 30 Children |
| ZHOU Xia, LIU Raoxi, MEI Haibo, JIN Ke |
| Hunan Children's Hospital, Affiliated Children's Hospital, Xiangya School of Medicine, Central South University, Changsha Hunan 410007 |
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Abstract 【Objective】 To explore the MRI imaging features of congenital tibial pseudarthrosis (CPT) in children with different X-ray classifications. 【Methods】 The clinical data of 30 untreated children with CPT admitted to our hospital from March 2013 to January 2024 were retrospectively analyzed. According to Crawford classification, they were divided into type Ⅰ (n=3), type Ⅱ (n=10), type Ⅲ (n=3) and type Ⅳ (n=14). Then the MRI imaging features of CPT with different classifications were analyzed. 【Results】 MRI showed that the thickening, bending, discontinuity and narrowing of the tibial shaft were basically consistent with X-ray. Regardless of the type of CPT, the periosteum was significantly thickened and showed obvious enhancement after contrast enhancement. In some children, the lesion periosteum had a wide range, which could extend to the metaphysis. The endosteum was also thickened and enhanced. The signal of the soft tissue mass in the medullary cavity and between the fracture ends was consistent with that of the lesion periosteum, showing high signal on T2 fat-suppression sequence and obvious enhancement on T1 enhancement sequence with clear boundaries. Some lesions between the fracture ends invaded the adjacent medullary cavity. 【Conclusion】 In addition to clearly showing the bone condition, MRI can also clearly show the scope of the lesion periosteum, medullary cavity and lesion tissue between the fracture ends. Therefore, MRI imaging can be used as a routine imaging examination for congenital tibial pseudarthrosis in children and can be used as a supplementary examination to X-ray.
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Received: 31 March 2024
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2026, Vol. 43 
