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  • Title: Abnormalities associated with congenital scoliosis in high-altitude geographic regions.
    Author: Hou D, Kang N, Yin P, Hai Y.
    Journal: Int Orthop; 2018 Mar; 42(3):575-581. PubMed ID: 29387915.
    Abstract:
    PURPOSE: To assess the different characteristics of congenital scoliosis between low-altitude geographic regions and high-altitude geographic regions in Chinese population and discuss the role of hypoxia on those differences. METHODS: A total of 120 patients with congenital scoliosis who underwent surgical treatment in our Hospital between January 2009 and October 2017 were identified. Complete data were reviewed, including medical records, X-ray, CT, and MRI pre-operatively. According to the patient's birthplace, they were divided into low-altitude geographic regions (low group) and high-altitude geographic regions (high group). Characteristics of vertebral deformities, rib deformities, and intra-spinal malformations in two groups were analyzed. RESULTS: A total of 397 segments of vertebral deformities were involved in the two groups, of which 136 were involved in high group and 261 in low group. The average segments involved were 4.5 and 2.9, respectively, in two groups. 63.3% patients in high group have rib deformities, which is significantly higher than that of low group (41.1%); and the proportion of patients with complex rib deformities in high group was also higher than that in low group (57.9% VS 24.3%). The incidence of CS associated with intra-spinal malformations in low group was 38.9%, which was similar to those reported previously; however, the incidence of that in high group was 63%, significantly higher than previous reports. CONCLUSION: Our results suggested that CS patients in high-altitude geographic regions might tend to have higher proportion and more severe of rib deformities, and also be more likely to accompany with intra-spinal malformations. So we supposed that hypoxia not only aggravated the proportion and severity of rib deformities, but also affected the development of spinal cord in humans.
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