Interventions targeting the perforating cutaneous nerve are relatively new to the literature, with a safe side-effect profile but lacking high-quality studies. Their effectiveness remains at the level of case presentations. According to the hypothesis expressed in these publications, coccydynia might be an overlooked cause due to the compression of the perforating cutaneous nerve where it pierces the sacrotuberous ligament and becomes superficial. Ultimately, it is hypothesized that injection of dextrose into this ligament and the sensory area of this nerve will resolve these symptoms due to nerve entrapment, similar to other entrapment neuropathies treated with 5% dextrose, like carpal tunnel syndrome.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
40
Participants will receive an ultrasound-guided injection of a solution into the sacrotuberous ligament and the sensory innervation area of the perforating cutaneous nerve.
Sisli Hamidiye Etfal Training and Research Hospital
Istanbul, Turkey (Türkiye)
RECRUITINGEffectiveness of Perforating Cutaneous Nerve Injection
To evaluate the effectiveness of perforating cutaneous nerve injection in reducing pain in patients with chronic coccydynia. Pain levels will be assessed using the Visual Analogue Scale (VAS) during sitting, movement and rest.
Time frame: Baseline, 2 weeks, 1 month, and 3 months post-treatment
Change in Pressure Pain Threshold
Assessment of the pressure pain threshold using an algometer.
Time frame: Baseline, 2 weeks, 1 month, and 3 months post-treatment
Change in Quality of Life
Assessment of quality of life using the EuroQoL questionnaire.
Time frame: Baseline, 2 weeks, 1 month, and 3 months post-treatment
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