NCT06653179

Brief Summary

This study aims to evaluate the effectiveness of sacral erector spinae plane block and caudal epidural injection in patients with coccydynia resistant to conservative treatments. Ultrasound guidance will be used for sacral erector spinae plane block, while fluoroscopic guidance will be applied for caudal epidural injection. The effectiveness of these treatments will be assessed through face-to-face questionnaires, the Numerical Rating Scale and the Paris Functional Coccydynia Scale at first, fourth and twelfth-week follow-ups.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
94

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Nov 2024

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 20, 2024

Completed
2 days until next milestone

First Posted

Study publicly available on registry

October 22, 2024

Completed
24 days until next milestone

Study Start

First participant enrolled

November 15, 2024

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 15, 2025

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 15, 2025

Completed
Last Updated

October 23, 2024

Status Verified

October 1, 2024

Enrollment Period

9 months

First QC Date

October 20, 2024

Last Update Submit

October 22, 2024

Conditions

Keywords

Sacral Erector Spinae Plane BlockCaudal. Epidural InjectionChronic Coccydynia

Outcome Measures

Primary Outcomes (2)

  • Numeric Rating Scale

    Numeric Rating Scale is a scale that can be used measuring pain. Scores range from 0 (no pain) to 10 (the worst pain)

    Change from baseline to 1st and 2nd and twelfth week after treatment

  • Paris Functional Coccydynia Scale

    The Paris Functional Coccydynia Scale is designed to assess the functional impact of coccydynia on patients' daily lives. It comprises various items that evaluate pain intensity, functional limitations, and the effect of pain on daily activities. Scores range from 0 to 10, with higher scores indicating greater impairment and more severe symptoms.

    Change from baseline to 1st and 2nd and twelfth week after treatment

Study Arms (2)

Sacral Erector Spinae Plane Block Group

ACTIVE COMPARATOR

Sacral Erector Spinae Plane Block for Chronic Coccydynia

Procedure: Sacral Erector Spinae Plane Block

Caudal Epidural Injection Gropu

ACTIVE COMPARATOR

Caudal Epidural Injection for Chronic Coccydynia

Procedure: Caudal Epidural Injection

Interventions

The patient is placed in the prone positionon a procedure table. The sacral region is exposed, and the area is prepped with antiseptic solution under sterile conditions. The ultrasound high-frequency linear transducer is placed transversely over the sacrum. The sacral cornua are typically seen as bony structures adjacent to the sacral hiatus, appearing as two hyperechoic structures. Rotate the ultrasound probe to a sagittal position over the sacrum to align with the fourth and fifth sacral vertebrae. Under continuous ultrasound guidance, block needle is inserted in-plane with the ultrasound probe. Direct the needle through the soft tissue towards the plane between the erector spinae muscle and the sacrum. After confirming needle placement, the injectate mixture of 8 mg dexamethasone and 10 mg bupivacaine (0.5% concentration) is administered. A total volume of 10 mL is injected, and real-time ultrasound is used to observe the spread of the injectate within the target tissue plane.

Sacral Erector Spinae Plane Block Group

The patient is positioned in the prone position on the procedure table, and the sacral region is exposed and prepped with antiseptic solution under sterile conditions. The fluoroscope is positioned laterally to visualize the sacral hiatus. Under fluoroscopic guidance, the block needle is inserted through the skin and advanced toward the sacral hiatus. Continuous fluoroscopy is used to ensure correct needle placement, typically visualized at the level of the sacral canal. After confirming the appropriate position with contrast media, the injectate consisting of 8 mg dexamethasone and 10 mg bupivacaine (0.5% concentration) is slowly administered, with a total volume of 10 mL. During injection, careful monitoring of the needle position is performed to avoid intravascular injection. After the procedure, patients are monitored for potential complications such as hypotension and allergic reactions.

Caudal Epidural Injection Gropu

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Chronic coccydynia unresponsive to conservative treatment
  • Male and female population aged 18-70
  • No previous interventional procedure performed during the treatment process

You may not qualify if:

  • Coagulation disorders
  • Infections in the areas to be treated
  • Allergy to local anesthesia
  • Socio-cultural inadequacy
  • Mental retardation
  • Pregnancy
  • Previous interventional procedure performed
  • Patient refusal of the interventional procedure
  • Presence of malignancy in the coccygeal region
  • Previous surgery in the coccygeal region

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ankara Etlik City Hospital

Ankara, Etlik, 06000, Turkey (Türkiye)

Location

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

October 20, 2024

First Posted

October 22, 2024

Study Start

November 15, 2024

Primary Completion

August 15, 2025

Study Completion

November 15, 2025

Last Updated

October 23, 2024

Record last verified: 2024-10

Locations