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Endoscopic and Cryoablation Denervation for Sacroiliac Joint Pain

Prospective Study Evaluating Cryoablation and Endoscopic Denervation of the Dorsal Sacroiliac Joint Innervation (Ramus Dorsalis L5 and S1-S3) in Patients With Sacroiliac Joint Pain

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07486674
Acronym
SI-DEN
Enrollment
51
Registered
2026-03-20
Start date
2023-04-20
Completion date
2026-01-15
Last updated
2026-03-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Pain, Sacroiliac Joint Pain

Brief summary

This interventional study compares cryoablation and endoscopic denervation for the treatment of posterior sacroiliac joint pain in patients with chronic sacroiliac joint pain confirmed by a positive diagnostic block. The aim is to evaluate and compare the effectiveness of both procedures in reducing pain and improving functional status.

Detailed description

Posterior sacroiliac joint pain is a common cause of chronic low back pain and may substantially impair daily functioning and quality of life. In patients with a positive diagnostic block confirming the sacroiliac joint as the source of pain, interventional procedures targeting the dorsal branches of L5 and S1-S3 may provide pain relief. This study compares two interventional treatment methods: cryoablation and endoscopic denervation. Patients with confirmed posterior sacroiliac joint pain undergo one of these procedures after diagnostic confirmation of the pain source. Cryoablation is performed on the dorsal branches of L5 and S1-S3. Endoscopic denervation is performed on the same target nerves using an endoscopic approach. The study evaluates the comparative effectiveness of these procedures in terms of pain reduction and functional improvement over follow-up. The findings may help clarify the role of these two techniques in the management of chronic posterior sacroiliac joint pain.

Interventions

PROCEDURECryoablation

Percutaneous cryoablation of the dorsal branches of L5 and S1-S3 under imaging guidance for treatment of posterior sacroiliac joint pain after a positive diagnostic block.

PROCEDUREEndoscopic Denervation

Endoscopic denervation of the dorsal branches of L5 and S1-S3 for treatment of posterior sacroiliac joint pain after a positive diagnostic block.

Sponsors

EPC Education s.r.o.
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Masking description

This was an open-label study. Neither participants nor investigators were masked to the performed intervention.

Intervention model description

Patients with sacroiliac joint pain and a positive diagnostic block of the dorsal branches of L5 and S1-S3 were assigned to one of two treatment groups according to the performed intervention: cryoablation or endoscopic denervation.

Eligibility

Sex/Gender
ALL
Age
18 Years to 85 Years
Healthy volunteers
No

Inclusion criteria

* adults aged 18 years or older * chronic sacroiliac joint pain * positive sacroiliac joint provocation maneuvers * positive diagnostic block of the dorsal branches of L5 and S1-S3 under fluoroscopic guidance * at least 70% pain relief after diagnostic block * ability to understand the study procedures and provide written informed consent

Exclusion criteria

* radicular pain caused by lumbar disc herniation or other dominant spinal pathology * spinal tumor, infection, fracture, or inflammatory spinal disease * coagulation disorder or ongoing anticoagulant therapy contraindicating the procedure * pregnancy * severe psychiatric or medical condition preventing reliable follow-up * refusal to participate in the study

Design outcomes

Primary

MeasureTime frameDescription
Pain intensity measured by Numeric Rating Scale (NRS)Baseline and 12 months follow-upChange in pain intensity measured using an 11-point Numeric Rating Scale (0 = no pain, 10 = worst imaginable pain).
Functional disability measured by Oswestry Disability Index (ODI)Baseline and 12 months follow-upChange in functional disability assessed using the Oswestry Disability Index (0-100%, higher scores indicate greater disability).

Secondary

MeasureTime frameDescription
Change From Baseline EuroQol-5 Dimension (EQ-5D-5L) at 12 MonthsBaseline and 12 months follow-upChange in health-related quality of life assessed using the EQ-5D-5L questionnaire, including mobility, self-care, usual activities, pain/discomfort, and anxiety/depression.
Procedure-Related ComplicationsFrom procedure up to 24 months follow-upOccurrence and type of adverse events or complications related to cryoablation or endoscopic denervation.
Analgesic consumption measured as daily dose (mg/day)Baseline and 12 months follow-upChange in analgesic medication use expressed as daily dose in milligrams per day.

Countries

Slovakia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 21, 2026