The Effect of USG-Guided Coccygeal Nerve Block on Sacrococcygeal And/or Intercoccygeal Joint Injection for Coccydynia

Summary

Coccydynia refers to a significant pain, that does not radiate, in and around the coccyx region. This symptom is typically worsen while sitting, especially on hard surfaces, standing up from sitting position and standing for long time. The steroid and anesthetic injection to the sacrococcygeal, intercoccygeal joints and impar ganglions are the most commonly cited second line management option in the literatures for refractor cases. The coccygeal nerve blockade or radiofrequency ablation is also used for coccydynia especially for traumatic cases. The aim of the study is; to evaluate the efficacy of ultrasound-guided sacrococcygeal and/or intercoccygeal joint injection in coccydynia and to investigate whether coccygeal nerve blockade has an additional contribution to this treatment.

Conditions

• Coccyx Disorder
• Coccygodynia
• Coccyx Injury

Interventions

PROCEDURE

Ultrasound-guided sacrococcygeal and/or intercoccygeal joint injection

Ultrasound guidance is used for correct visualization of injection site, and so obtained more successful results. Patients are placed in the prone position with a pillow under the abdomen to flatten the lumbar curvature. Lower extremities should be internally rotated while feet are inverted to help flatten the gluteal region. Injection site is cleaned thrice with povidone iodine %10 solution and covered with sterile drapes. Ultrasonography gel was applied on the probe and the probe was wrapped with a transparent thin sheath and cleaned with povidone iodine. Sterile gel is applied on the skin. The sacrococcygeal ligament, the sacrococcygeal and intercoccygeal joints were visualized. The sacrococcygeal and/or intercoccygeal joints were entered using the in-plane technique with a 23 gauge 6 cm long needle. When it was seen that the needle tip was inside the joint, 3 cc of 2% lidocaine + 1 cc betamethasone solution was injected.

PROCEDURE

Ultrasound-guided coccygeal nerve block

Patients are placed in the prone position with a pillow under the abdomen. Lower extremities are internally rotated while feet are inverted. Injection site and the probe are cleaned thrice with povidone iodine %10 solution. Sterile gel is applied. The prob was placed on coccygeal cornu and the coccygeal nerve was visualized superomedial to the CC in the subcutaneous tissue layer. Hydrodissection was made by administering 5 ml of 5% dextrose + 1 ml of 2% lidocaine via an in-plane approach with a 23 gauge 6 cm long needle, targeting the short axes of the bilateral coccygeal nerves.

PROCEDURE

Ultrasound-guided sacrococcygeal and/or intercoccygeal joint injection after coccygeal nerve block

After the coccygeal nerve block, when the pain with palpation of the coccygeal region was reduced by at least 50%, the sacrococcygeal ligament, sacrococcygeal and intercoccygeal joints were visualized.The sacrococcygeal and/or intercoccygeal joints were entered using the in-plane technique with a 23 gauge 6 cm long needle. When the needle tip was inside the joint, 3 cc of 2% lidocaine + 1 cc betamethasone solution was injected.

Sponsors & Collaborators

• Fatih Sultan Mehmet Training and Research Hospital

  lead OTHER

Principal Investigators

• Feyza Unlu Ozkan · Fatih Sultan Mehmet Training and Research Hospital

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

TRIPLE

Model

PARALLEL

Eligibility

Min Age

18 Years

Max Age

65 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2023-06-15

Primary Completion

2023-12-28

Completion

2024-06-18

Countries

• Turkey (Türkiye)

Study Locations