A suprascapular nerve block is a targeted, image-guided injection that calms the suprascapular nerve, which carries the majority of sensation from the shoulder joint. It is an option for chronic shoulder pain that has not responded to conservative care.
OVERVIEW
What a suprascapular nerve block is and how it works
The suprascapular nerve supplies roughly 70 percent of the sensory nerve fibers to the shoulder, including much of the glenohumeral (ball-and-socket) joint and its capsule. Because it covers such a large share of the joint, an injection placed near this single nerve can reduce pain across much of the shoulder at once. The nerve also sends motor branches to two rotator-cuff muscles, which is why a brief, temporary change in shoulder strength can occur while the anesthetic is active.
During the procedure, your fellowship-trained physician at Columbia Pain & Spine Institute uses ultrasound or fluoroscopic (live X-ray) imaging to guide a thin needle toward the nerve as it passes through the suprascapular notch on the upper border of the shoulder blade. A small amount of local anesthetic, often combined with a corticosteroid, is deposited near the nerve. The anesthetic interrupts pain signals quickly, while the steroid is intended to reduce inflammation for a longer effect.
The injection can be both diagnostic and therapeutic. If your pain eases once the anesthetic takes effect, that response helps confirm the suprascapular nerve as a source of your symptoms; the added steroid aims to extend relief over the following days to weeks. The goal is to lower pain enough to make physical therapy, daily activity, and sleep more manageable.
CONDITIONS
Shoulder problems a suprascapular nerve block can address
This injection is most often considered for chronic shoulder pain that limits motion and has not improved with rest, medication, or therapy alone. It can be especially useful when an oral medication or steroid is not ideal, or when pain is interfering with shoulder rehabilitation.
Commonly treats
YOUR VISIT
What to expect
Before
Tell us about blood thinners, allergies, and any recent infections when you call to schedule. Most patients continue their usual medications unless instructed otherwise. The visit itself is brief, and you can plan to have someone drive you home if sedation is used.
During
You will be positioned to expose the top of the shoulder blade. After the skin is cleaned and numbed, your physician advances the needle under ultrasound or fluoroscopic guidance to place the medication near the suprascapular notch. Image guidance supports accurate placement and helps keep the needle away from nearby structures. The injection itself usually takes only a few minutes, and the full appointment is typically completed in well under an hour.
After
You may notice rapid pain relief from the local anesthetic, sometimes with temporary numbness or mild weakness around the shoulder until it wears off. If a steroid was included, its effect tends to build over several days. Many patients return to light activity the same day and resume normal activity within a day or two, following any specific guidance from your care team.
Recovery and follow-up
Use ice and rest the shoulder for the remainder of the day, and watch for any signs of infection at the injection site. At follow-up we will review how long your relief lasted and whether repeat blocks, physical therapy, or other treatments make sense for your goals. Our team serves patients throughout Gresham, Portland, and the greater Portland metro area.
FAQ
Common questions
Is a suprascapular nerve block diagnostic or therapeutic?
It can be both. The local anesthetic gives an immediate, diagnostic clue about whether the suprascapular nerve is driving your shoulder pain, while the steroid added to many blocks is meant to provide longer therapeutic relief.
How long does the relief last?
This varies from person to person and depends on the underlying shoulder condition. Some patients feel several weeks or more of improvement, while others benefit most when the block is paired with physical therapy. Your physician will review your response at follow-up and discuss whether repeat injections are appropriate.
Will I be awake during the procedure?
Most suprascapular nerve blocks are performed with local numbing while you are awake, since the injection is quick and generally well tolerated. Light sedation may be available in select cases, and we will explain your options ahead of time.
Will my shoulder feel weak afterward?
Because the suprascapular nerve also helps power two rotator-cuff muscles, you may notice brief, mild weakness while the anesthetic is working. This is expected and resolves as the numbing medication wears off.
RELATED PROCEDURES
Other treatments to explore
Axillary Nerve Block
Targets another sensory nerve of the shoulder, sometimes used alongside or instead of a suprascapular block for shoulder and upper-arm pain.
Major Joint Injection
Delivers steroid or viscosupplement directly into the shoulder joint for arthritis and other large-joint pain.
Peripheral Nerve Block
An image-guided block of a peripheral nerve used to interrupt pain signals in the arms, legs, or trunk.