delivery to the inferior epiphyseal growth plate 128 will also generally require an angled penetration of the pedicle 122 as shown in fig9 c as will be appreciated the trajectory of the delivery device 126 will ultimately depend on the patients specific anatomy as well as any methodology preferences of the surgeon alternatively as shown in fig1 the growth modulator may be delivered to the appropriate zone through parapedicular delivery wherein the delivery device 126 penetrates the body portion 130 of the vertebrae 120 without traversing the pedicle 122 for example the delivery device 126 may have a trajectory that passes superior or inferior to the pedicle 122 and or transverse process 132 alternatively the delivery device 126 may assume a trajectory that is generally anterior to the pedicle while an angular trajectory into the body may be advantageous or preferred in certain circumstances parapedicular delivery generally does not require an angular trajectory relative to the transverse plane of the vertebrae with parapedicular delivery the angle of delivery into the body of the vertebrae is generally decided upon by the medical practitioner as a matter of personal preference transdiscal delivery as shown in fig1 is a further delivery option wherein the trajectory of the delivery device 126 results in a traversal of the adjacent intervertebral disk 134 into the body portion 130 of the vertebrae 120 in particular the target growth plate as will be appreciated transdiscal delivery is generally an angled trajectory relative to the transverse plane as the target for.