Held T, Hoedemaker M, Gerhards H
Tierarztl Prax. 1986;14(1):43-7.
The case of a 3 days old calf taken to the local animal hospital with a complete fracture of the vertebral column at the transitory point between thoracic and lumbar spine is reported. The fracture could be attributed to the wrong use of a mechanical fetal extractor, which is a common mistake when using it for forced extraction.
据报道，一头3日龄小牛因脊柱在胸腰椎过渡点处完全骨折被送往当地动物医院。骨折可能是由于错误使用机械助产器所致，这是使用它进行强制助产时常见的错误。
