Department of Medical Genetics, University of British Columbia and BC Children's Hospital, Vancouver, British Columbia, Canada.
Department of Pediatrics, University of British Columbia and BC Children's Hospital, Vancouver, British Columbia, Canada.
Am J Med Genet C Semin Med Genet. 2019 Sep;181(3):354-362. doi: 10.1002/ajmg.c.31727. Epub 2019 Jul 26.
Perhaps the most dramatic position of a newborn after delivery is when there is hyperextension of the neck and spine. It will have been presented in utero and today, almost always, such babies will have been delivered by C-section. The associated anomalies are variable. The process(es) that can lead to cervical hyperextension is/are largely unknown. The outcome is variable from lethal to completely resolve. Individuals with arthrogryposis and in particular with Amyoplasia appear to have an increased frequency of neck, cervical, and spine hyperextension at birth. We present here 41 cases of arthrogryposis (mainly Amyoplasia) with fetal cervical hyperextension. The outlook is surprisingly good if spinal cord trauma does not occur. Ultrasound late in pregnancy when arthrogryposis is recognized prenatally should determine whether cervical hyperextension has developed, so that appropriate preventive measures can be taken.
或许新生儿出生后最引人注目的姿势是颈部和脊柱过度伸展。在子宫内时，婴儿会呈现这种姿势，而如今，几乎所有这样的婴儿都是通过剖腹产分娩的。相关的异常情况各不相同。导致颈椎过度伸展的过程（s）在很大程度上是未知的。其结果从致命到完全解决不等。患有先天性关节挛缩症的人，尤其是患有肌营养不良症的人，在出生时似乎更频繁地出现颈部、颈部和脊柱过度伸展。我们在这里介绍 41 例先天性关节挛缩症（主要是肌营养不良症）伴胎儿颈椎过度伸展的病例。如果没有发生脊髓损伤，预后出人意料地好。如果在产前识别出先天性关节挛缩症，妊娠晚期的超声检查应该可以确定是否已经出现颈椎过度伸展，以便采取适当的预防措施。
