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Chronic shoulder pain due to impingement syndrome and supraspinatus tendinosis is a debilitating condition. Suprascapular nerve innervates most part of shoulder joint. Supraspinatus nerve block can be used as a part of pain therapy. However, its efficacy is short-lasting. To prolong analgesia, short bursts of electrical stimulation to suprascapular nerve may be applied. To the date there is no consensus about duration of these type of stimulation. Investigators' aim is to investigate efficacy of two different duration of stimulation (pulsed radiofrequency) on chronic shoulder pain.
Pulsed radiofrequency (pRF) treatment of suprascapular nerve can be used successfully to alleviate pain due to shoulder impingement syndrome and supraspinatus tendinosis. Radiofrequency waves produced by radiofrequency (RF) generator through pRF modality are applied to suprascapular nerve and create magnetic field. This field leads to pain modulation by changing neuronal activity and resulting in long term depression of pain transmitting nerve fibers. Temperature around nerve never exceeds 42 degree and by this way the nerve can be protected from coagulation necrosis and demiyelinisation. pRF can be used in the treatment of mixed type nerves such as suprascapular nerve. There are preclinical and clinical studies which report that with longer pRF duration, more favorable analgesia. Suprascapular pRF is performed with 22G, 10 cm, 5 mm active lead RF needle via USG guided posterior approach as institution procotol. Howeveri clinicians can choose any duration of pRF. Instution's pain medicine practitioners HAU and GEO choose 4 and 9 minutes of pRF duration, respectively. Investigators' aim is to investigate the efficacy of two different pRF duration, 4 and 9 minutes, on Shoulder Pain and Disability Index (SPADI) and Numeric Rating Scale-11(NRS-11) at 3 month follow-up.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| 4 min suprascapular pulsed RF | Other | Suprascapular nerve pulsed RF is applied for 4 minutes. |
|
| 9 min suprascapular pulsed RF | Other | Suprascapular nerve pulsed RF is applied for 8 minutes. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| suprascapular nerve block and 4 mins Pulsed radiofreuency application to suprascapular nerve | Procedure | suprascapular nerve pulsed rf |
|
| Measure | Description | Time Frame |
|---|---|---|
| Postprocedure 3th month pain severity | Severity of pain will be assessed with Numeric Rating Scale (NRS-11) at baseline, 1 weeks, 1 months and 3 months after interventions. NRS-11 is a 11 point likert type scale. Higher scores represent more severe pain. | From procedure to 3 months after prodecure |
| Measure | Description | Time Frame |
|---|---|---|
| Postprocedure pain severity at first week | Severity of pain will be assessed with Numeric Rating Scale (NRS-11) at 1 week after interventions. NRS-11 is a 11 point likert type scale. Higher scores represent more severe pain. | From procedure to 1 week after procedure |
| Postprocedure first month pain severity |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Hanzade Aybuke Unal, MD | Contact | +905057179039 | hanzadeunal@windowslive.com | |
| Ersin Sönmez, MD | Contact | +905370257858 | ersins@outlook.com |
| Name | Affiliation | Role |
|---|---|---|
| Güngör Enver Özgencil, Prof Dr | Ankara University School of Medicine Department of Anesthesiology and Reanimation | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Ankara University | Ankara | Turkey (Türkiye) |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 39176114 | Background | Gupta SK, Ghai B, Makkar JK, Dhiman D, Chouhan DK. Effectiveness of ultrasound-guided pulsed radiofrequency ablation of suprascapular nerve versus local anaesthetics with steroids in patients with chronic shoulder pain: A randomised controlled trial. Indian J Anaesth. 2024 Aug;68(8):731-734. doi: 10.4103/ija.ija_939_23. Epub 2024 Jul 2. No abstract available. |
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All data can be shared except personal data.
5 years after January 2026
Upon reasonable request
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Group 1: 4 mins suprascapular pulsed RF Group 2: 9 mins suprascapular pulsed RF
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| suprascapular nerve block and 9 mins Pulsed radiofreuency application to suprascapular nerve | Procedure | suprascapular nerve block and 4 mins Pulsed radiofreuency application to suprascapular nerve |
|
Severity of pain will be assessed with Numeric Rating Scale (NRS-11) at 1 month after interventions. NRS-11 is a 11 point likert type scale. Higher scores represent more severe pain. |
| From procedure to 1 month after procedure |
| Postprocedure SPADI scores at first week | Functionality will be assessed with Shoulder Pain and Disability Index (SPADI) at 1 week. SPADI measures pain and disability related shoulder function. SPADI has 0 minimum and 100 maximum value. Lower scores represent better outcomes. | From procedure to 1 week after procedure |
| Postprocedure first month SPADI scores | Functionality will be assessed with Shoulder Pain and Disability Index (SPADI) at 1 month. SPADI measures pain and disability related shoulder function. SPADI has 0 minimum and 100 maximum value. Lower scores represent better outcomes. | From procedure to 1 month after procedure |
| Postprocedure 3th month SPADI scores | Functionality will be assessed with Shoulder Pain and Disability Index (SPADI) at 3th month. SPADI measures pain and disability related shoulder function. SPADI has 0 minimum and 100 maximum value. Lower scores represent better outcomes. | From procedure to 3 month after procedure |
| ID | Term |
|---|---|
| D019534 | Shoulder Impingement Syndrome |
| D059350 | Chronic Pain |
| ID | Term |
|---|---|
| D007592 | Joint Diseases |
| D009140 | Musculoskeletal Diseases |
| D000070599 | Shoulder Injuries |
| D014947 | Wounds and Injuries |
| D010146 | Pain |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
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