Sacroiliac innervation

The role of spinal injections towards optimizing patient selection for spinal surgery: A proof-of-concept study in 176 lower back pain patients

BACKGROUND

Managing degenerative lumbar diseases is challenging due to the complexity of identifying symptom causes, especially when multiple pathologies coexist. This study evaluated the impact of patient-specific lumbar spine infiltrations on therapeutic strategies in patients with multiple spinal pathologies (MSP) or specific spinal pathologies (SSP).

METHODS

A retrospective cohort of 176 patients treated for subacute or chronic lumbar pain with targeted spinal infiltrations was analyzed. Patients were categorized based on the presence of MSP or SSP. The primary endpoint was the relief of lumbar spine-specific symptoms following each infiltration. Secondary endpoints included epidemiological factors and comorbidities, while tertiary endpoints focused on post-treatment recommendations and performed treatments.

RESULTS

High rates of spinal pain (97.1% in both groups) and radiating symptoms (88.2% in SSP and 92.3% in MSP) were reported. Psychological conditions were significantly more prevalent in female patients (19.4% vs. 7.7%, p = 0.0307), whereas hip osteoarthritis was more common in male patients (20.5% vs. 9.2%, p = 0.0490). Among all infiltration types, lumbar transforaminal injections were the most effective, leading to pain reduction in 80.1% of SSP patients and 72.2% of MSP patients. Facet joint and sacroiliac joint infiltrations also frequently resulted in pain reduction in both groups. Overall, conservative treatment was recommended for most patients (73.3%), while only 22.7% of all evaluated patients were recommended for surgical intervention. Additionally, seven patients received a hip prosthesis.

CONCLUSIONS

Patient-specific lumbar spine infiltrations effectively relieve pain, support therapeutic decision-making, and tend to favor conservative treatment approaches. These findings highlight the role of infiltration therapies in managing both mixed and specific lumbar spine pathologies, suggesting their potential to reduce the need for surgical interventions.

Incidence of Sacroiliac Joint Pain Following Lumbar Fractures: A Retrospective-Cohort Study

BACKGROUND

Sacroiliac joint (SIJ) pain commonly affects patients with low back pain and can arise from traumatic and degenerative causes. However, the incidence of SIJ pain following lumbar fractures is not well understood.

METHODS

TriNetX, a national network of deidentified patient records, was retrospectively queried. The lumbar fracture cohort included 239,199 adults, while the no lumbar fracture group included 6,975,046 adults. Following a propensity-score match based on demographics and risk factors for SIJ, there were 239,197 patients in each cohort. The incidence of SIJ pain and clinical outcomes were analyzed from 1 day to 1 year following the index event. Moreover, the location and type of single-level lumbar fractures were reported. The incidence of SIJ pain for single-level fractures was compared using a χ2 goodness-of-fit.

RESULTS

The lumbar fracture cohort was more likely to develop SIJ pain at 3 months (odds ratio [OR]: 5.3, 95% confidence interval [CI]: 4.8-5.9), 6 months (OR: 4.4, 95% CI: 4.1-4.8), and 1 year (OR: 3.9, 95% CI: 3.6-4.2) postfracture. Among single-level lumbar fractures, the incidence of SIJ pain at 1 month (P = 0.005), 6 months (P = 0.010), and 1 year (P = 0.003) varied significantly, with the highest incidence in the L5 cohort.

CONCLUSIONS

Our findings suggest that lumbar fractures are a risk factor for developing SIJ pain. Moreover, the incidence of SIJ pain is greater following an L5 fracture than an L1 fracture. Further investigation is warranted to determine how the type and treatment of lumbar fractures affects the incidence of SIJ pain.