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Papers of the Week

2022 Dec 08


Usefulness of discography, discoblock and a new mechanical method for identifying a painful segment/disc.


Nyström B, Schillberg B, Jin S, Taube A
Neurochirurgie. 2022 Dec 08:101397.
PMID: 36502874.


We previously described a procedure for eliciting deep spatial discrimination of individual segments in the healthy lumbar spine of normal subjects: the percutaneous mechanical provocation (PMP) test. Our goal was to devise a method for accurate identification of the spinal level of pathology in chronic low-back pain (CLBP). In the present study, we validated the PMP test, using a subgroup of CLBP patients with isthmic spondylolisthesis (IS). Because there is clinical consensus that IS back pain originates in the slipped segment/disc, the level of pathology can be directly compared to the result of the PMP test. The test is agnostic with respect to the underlying pathological mechanism, and therefore might be useful in identifying the involved segment(s) irrespective of the painful structure.