Harrison et al.’s work in this area was pioneering
in its reference to the possibility of lumbar sagittal
curve correction with 2 way lumbar traction [9]. To
date, no published randomized controlled trial has addressed
the issue of lumbar curve correction by this
type of traction. Only two non-randomized trials were
conducted pertaining to the cervical and lumbar regions [9,10]. Despite the importance of these studies,
all attempts to assess the efficacy of this type or
other types of traction on the restoration of the sagittal
curve [11], have generally relied on radiographs to determine
the global or segmental magnitude of the lordosis,
and questionnaires to assess pain, while ignoring
the assessment of global sagittal balance that is recognized
as an important aspect to be considered in the
rehabilitation of spinal disorders [12,13].