Figure 1From: Effect of percutaneous nucleoplasty with coblation on phospholipase A2 activity in the intervertebral disks of an animal model of intervertebral disk degeneration: a randomized controlled trial Animal groups. Two rabbits died of infection during establishment of the animal model. Thirty-six animal models were successfully established. All animal models were then randomly divided into a coblation group and coblation control group. Six animals were sacrificed at different time points to assess the PLA2 activity in the L4–5 and L5–6 intervertebral disks.Back to article page