Panjabi M M, Krag M, Summers D, Videman T
J Orthop Res. 1985;3(3):292-300. doi: 10.1002/jor.1100030305.
Changes in the biomechanical properties of fresh cadaveric spinal specimens due to long-term freeze storage and long test periods have been investigated. Fresh cadaveric specimens were divided into three groups: Group A specimens were tested fresh on the 1st day and 13 subsequent days; Group B specimens were tested on the 1st day, frozen in sealed bags at -18 degrees C for 21 days, and tested for 13 consecutive days after thawing; and Group C specimens were frozen for up to 232 days and tested for 14 consecutive days after thawing. We could not find any significant differences between the behavior of the three test groups. This implies that freezing and storage, even for long periods, do not significantly alter the physical properties of cadaveric spinal specimens. Concerning the differences observed on a daily basis, the mean value of the maximum displacement for the 1st day did not differ significantly from the corresponding mean value for the 13 consecutive days. This was true for all three groups, although there was some indication that the fresh group specimens showed greater variation than the two frozen groups.
研究了长期冷冻保存和长时间测试期对新鲜尸体脊柱标本生物力学特性的影响。新鲜尸体标本分为三组：A组标本在第1天及随后13天进行新鲜测试；B组标本在第1天进行测试，于-18℃密封袋中冷冻21天，解冻后连续测试13天；C组标本冷冻长达232天，解冻后连续测试14天。我们未发现三个测试组的行为之间存在任何显著差异。这意味着即使长时间冷冻和保存，也不会显著改变尸体脊柱标本的物理特性。关于每日观察到的差异，第1天最大位移的平均值与连续13天的相应平均值无显著差异。所有三组均如此，尽管有迹象表明新鲜组标本的变化比两个冷冻组更大。
