Imaging may help predict back-pain intervention responses, but evidence is mixed
A review of cohort studies found different patterns for SPECT and SPECT-CT, leaving uncertainty about how well imaging guides treatment decisions.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
The pooled studies linked SPECT-guided facet interventions with greater pain relief, while evidence for SPECT-CT was inconclusive. Results also varied by intervention type. Because these were cohort studies, the associations do not establish that using a scan causes better outcomes, or that SPECT is superior to SPECT-CT in a direct comparison.
The evidence came from cohort studies, with varying results across imaging and intervention subgroups. The abstract does not specify follow-up times or pain-response definitions, limiting interpretation of the reported associations.
The intervention mattered
Results favored imaging-guided injections into the joint, whereas the pooled result for medial branch blocks was not statistically significant. That difference does not establish that the injection approach is superior; the abstract reports separate subgroup results.
Prediction and treatment decisions
The review asked whether scan findings help identify people likely to respond to facet interventions. Although function and quality of life were assessed, the abstract's results focus on pain relief and leave those other outcomes unspecified.
The original publication
Effectiveness of single-photon emission computed tomography (SPECT/SPECT-CT) in predicting therapeutic response to facet interventions for facet joint-related low back pain: A systematic review and Meta-Analysis.
Vega-Alvear RF, Fuentes-Tapias S, Ramos-Márquez A et al.
Eur Spine J · 2025
- PubMed ID
- 40796692
- Record checked
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