Kohlbach W
Facharzt für Röntgenologie und Strahlenheilkunde, Witzenhausen.
Rontgenblatter. 1988 Jan;41(1):23-6.
Attention is drawn to the mode of development of spondylolysis/spondylolisthesis and to the fact that the articular processes of the small vertebrae can exercise an action on the pars interarticularis only if the latter are in oblique position. It is pointed out that the requisite obliqueness of the pars interarticularis is only possible in conjunction with lordosis, so that the latter is an essential condition for the pathogenesis of spondylolysis/spondylolisthesis. It is also pointed out that excessive load due to upright position of the subject is the triggering factor for spondylolysis/spondylolisthesis, because it is only from this position that the articular processes of the small vertebrae can exercise an action on the pars interarticularis. In four-footed animals there is no excessive load on the articular processes because they do not walk or sit upright, which means the articular processes cannot act on the pars interarticularis to trigger spondylolysis/spondylolisthesis. Likewise, there are no vibrations of the vertebral column with lordosis as the inevitable result and consequently there is no spondylolysis/spondylolisthesis. Hence, it is only in humans that the preconditions and triggering factors for spondylolysis/spondylolisthesis exist at all.
请注意椎弓根峡部裂/椎体滑脱的发展模式，以及小椎体的关节突只有在关节突间部处于倾斜位置时才能对其产生作用这一事实。需要指出的是，关节突间部所需的倾斜度只有在伴有脊柱前凸的情况下才可能出现，因此脊柱前凸是椎弓根峡部裂/椎体滑脱发病机制的一个必要条件。还需指出的是，由于人体直立姿势导致的过度负荷是椎弓根峡部裂/椎体滑脱的触发因素，因为只有从这个位置小椎体的关节突才能对关节突间部产生作用。在四足动物中，关节突没有过度负荷，因为它们不会直立行走或坐着，这意味着关节突不能作用于关节突间部来引发椎弓根峡部裂/椎体滑脱。同样，也不会有以脊柱前凸为必然结果的脊柱振动，因此也就不会有椎弓根峡部裂/椎体滑脱。所以，只有在人类中才存在椎弓根峡部裂/椎体滑脱的先决条件和触发因素。
