Peripheral Nerve Entrapment Self-Assessment
A quick safety check, then eleven questions about where the pain sits, what it feels like, and which spot reproduces it. About five minutes. Built around the clinical patterns Dr. Alex Movshis uses in office to identify which peripheral nerve is trapped or irritated in patients who never had surgery — the burning outer thigh, the itchy patch beside the shoulder blade, the shoulder treated for a year as a rotator cuff, the "carpal tunnel" that is on the wrong side of the hand.
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What the assessment covers
This is a pattern-recognition tool that maps the symptoms of non-surgical nerve pain to the peripheral nerve most likely to be trapped or irritated. It is built around the clinical patterns Dr. Alex Movshis, MD — a dual-board-certified anesthesiologist and pain medicine physician in Midtown Manhattan — uses to triage new-patient consults. It is educational; it is not a diagnosis. If your pain began after abdominal, pelvic, or breast surgery, the tool routes you to the post-surgical nerve pain self-assessment, which is built around the nerves that cross those operative fields.
Questions the assessment asks
- Safety check (10 yes/no items). Screens for the emergencies that can hide behind these presentations — cauda equina syndrome, progressive weakness or a new foot drop, spinal infection, subarachnoid haemorrhage or a headache with a neurological change, local infection, metastatic disease in a patient with a cancer history, and aortic dissection. Any positive answer stops the assessment and routes to the emergency department.
- What preceded the pain. Surgery, a rib fracture, shingles, a head or neck injury, desk posture, overhead sport, long sitting, a tight watch or wrist band, a wrist injury, tight waistbands, rapid weight loss including on a GLP-1 medication, pregnancy — or nothing at all.
- How long it has been present. From under six weeks to more than three years.
- Where the pain is. Sixteen named territories grouped by body region — scalp and skull base, posterior shoulder, the patch beside the shoulder blade, a rib band, low back and upper buttock, deep mid-buttock, the sit bone, outer thigh, below the knee, the back of the hand and thumb, the palm — plus a free-text description.
- What it feels like. Burning, electric, sharp, aching, numbness, tingling, hypersensitivity, itching, deep pressure — plus the throbbing-with-nausea descriptor that separates migraine from occipital neuralgia.
- DN4 self-screen (7 items). The validated Bouhassira DN4 neuropathic-pain questionnaire, self-report subset — burning, painful cold, electric shocks, tingling, pins and needles, numbness, itching.
- What makes it worse. Light touch, a hairbrush or pillow, sitting, standing or walking, hip extension, a deep breath or cough, overhead reaching, wrist and thumb movement, anything tight over the area, neck movement and screen time.
- Whether there is weakness. Several of these nerves are purely sensory, so normal strength is a positive finding. Weak external rotation of the shoulder, weak grip, and leg weakness each point somewhere specific.
- How the pain travels. Stays in one patch, shoots up the scalp, wraps along one rib, spreads across the buttock without going down the leg, travels below the knee, or travels past the elbow into the fingers.
- Tender-point self-test. A short list of the published entrapment landmarks, in plain language, filtered to the areas marked — below the skull base, the top edge of the shoulder blade, the itchy patch itself, along one rib, the pelvic rim about three inches out from the spine, deep mid-buttock, the sit bone, just inside and below the front hip bone, and the thumb side of the forearm a hand-width above the wrist.
- What has already been done. Normal imaging, a spine MRI, negative facet or SI joint injections, a rotator cuff program, a carpal tunnel workup or splint, failed dermatology creams, a normal cardiac and lung workup, migraine medication that never worked, EMG, or multiple normal workups across multiple specialists.
- Your main question. Is this a nerve problem? Why has nobody figured this out? What treatments might help? Is this permanent? Will I need surgery?
Conditions the assessment can identify
Based on the answer pattern, the assessment routes to one of twelve educational outputs. Each names the peripheral nerve most likely involved, explains why the pattern is commonly missed, describes what an in-office evaluation involves, and links to the relevant Modal Pain service page, the underlying blog post, and the peer-reviewed literature.
- Occipital neuralgia. Shooting, electric pain from the base of the skull up one side of the scalp, with a scalp that stays tender between attacks — the patient who cannot wear a ponytail or lie on that side. The tender point below the occipital ridge reproduces it. Diagnosis follows the International Classification of Headache Disorders criteria, and the occipital nerve block is both the confirming test and the first treatment. Read the full post.
- Cluneal nerve entrapment. Low back and upper outer buttock pain with a Tinel-positive point about 7 to 8 cm lateral to the midline on the iliac crest, in a patient whose facet and SI joint workups came back negative. The pain does not cross below the gluteal crease in a radicular pattern. Read the full post.
- Meralgia paresthetica. A burning, numb patch on the front and outer thigh that never crosses the knee, with no weakness at all — the lateral femoral cutaneous nerve is purely sensory. Worse with standing, hip extension, and tight waistbands; the tender point sits just inside and below the front hip bone. Read the full post.
- Suprascapular nerve entrapment. Deep posterior shoulder pain with weak external rotation, regularly mistaken for a rotator cuff tear because the infraspinatus is the shared variable. Isolated wasting below the ridge of the shoulder blade with an intact cuff is the tell. Read the full post.
- Wartenberg's syndrome. Burning on the back of the hand, the thumb-side wrist, and the top of the thumb — never the palm, which is why it is not carpal tunnel. Triggered by a tight watch or fitness tracker; the Tinel point sits over the brachioradialis tendon about 9 cm above the wrist. Read the full post.
- Notalgia paresthetica. Itch more than pain, in a well-defined patch medial or inferior to one shoulder blade, driven by the thoracic dorsal rami rather than by any skin disease — which is why creams reliably fail and capsaicin does not. Read the full post.
- Intercostal neuralgia. A band of burning pain along one rib space wrapping from the back toward the front, after chest surgery, a rib fracture, or shingles — with cardiac and pulmonary causes excluded first. Read the full post.
- Deep gluteal syndrome and piriformis syndrome. Deep mid-buttock pain that builds the longer you sit and eases on standing, with a positive FAIR test in office — separated from proximal hamstring tendinopathy and ischiogluteal bursitis, which are pinpoint tender right on the sit bone. Read the full post.
- Post-surgical routing. Pain that began after abdominal, pelvic, or breast surgery is sent to the post-surgical assessment, which covers the ilioinguinal, iliohypogastric, genitofemoral, pudendal, obturator, intercostobrachial, and anterior cutaneous nerves.
- Radiculopathy routing. A dermatomal pattern below the knee or past the elbow into the fingers, together with a motor or reflex change, is a nerve root rather than a peripheral entrapment, and routes to the radiculopathy service.
- Indeterminate or mixed pattern. An honest output for answers that do not localize — including the discriminators patients most often blur, such as palm-plus-dorsum hand symptoms, and throbbing whole-head pain with nausea that is migraine physiology rather than one irritated nerve.
- Emergency department routing for any positive item on the safety check.
What evaluation involves at Modal Pain
The first visit pairs a focused in-office cutaneous exam — mapping the painful territory and testing the published entrapment points along the nerves that supply it — with a same-day ultrasound-guided diagnostic block when the exam supports one. The block is the test that resolves the question: if numbing the suspected nerve switches off the familiar pain within 5 to 15 minutes, that nerve is confirmed as the source. With an anti-inflammatory medication added to the same injection, the procedure typically gives 6 to 12 weeks of relief. Patients who respond clearly but briefly are candidates for hydrodissection, which frees the nerve from surrounding scar, or pulsed radiofrequency for longer-lasting control; surgical decompression is reserved for the refractory minority, and a documented positive block is what those programs require before operating. Modal Pain Management is located at 369 Lexington Avenue Floor 25 in Midtown Manhattan. Same-week new-patient consults are routinely available. The practice does not accept Medicare; it works with most commercial PPO insurance plans, and the office team verifies coverage before scheduling.
Privacy
Your answers are held in your own browser and cleared after 24 hours. This tool has no contact form and no server endpoint, so nothing you select is transmitted to Modal Pain. Anonymous usage analytics — which result screen was reached, never what you selected — may be recorded where privacy rules permit, and are disabled entirely for visitors in regions where consent has not been collected.
Frequently asked questions about trapped and entrapped nerves
A peripheral nerve entrapment is a nerve compressed or tethered at a specific point along its course — usually where it passes through a tight tunnel of bone, ligament, or fascia, or where something external presses on it. The result is pain, burning, tingling, numbness, or itching in the exact patch of skin that nerve supplies. It is a mechanical problem at one identifiable spot, which is why the treatment is targeted at that spot rather than at the whole limb.
A pinched nerve in the spine (radiculopathy) is compression of a nerve root where it exits the spinal column, and it produces pain along a strip that belongs to that spinal level — typically past the knee in the leg or into the fingers in the arm — often with weakness or a reflex change. A peripheral nerve entrapment happens further downstream, after the nerve has left the spine, and it produces symptoms in a smaller, well-defined patch of skin. Several of the nerves involved are purely sensory, so they cannot cause weakness at all. This assessment routes you toward a spine evaluation if your answers fit the radiculopathy pattern instead.
MRI and CT are good at finding structural problems in joints, discs, and organs. They are poor at showing a small peripheral nerve irritated at a fascial edge. A normal scan does not rule out an entrapment — it usually means the test was not looking at the nerve. The test that actually answers the question is an image-guided diagnostic block: numbing medicine placed next to the suspected nerve under ultrasound, with the answer arriving in 5 to 15 minutes.
It is an ultrasound-guided injection of local anesthetic right next to the suspected nerve, performed in the office in about 10 to 15 minutes. The logic is simple: if numbing that one nerve switches off your familiar pain while the anesthetic is working, that nerve is carrying the pain. With an anti-inflammatory medication added to the same injection, the procedure typically becomes therapeutic for roughly 6 to 12 weeks. A documented positive block is also what surgical programs require before they will consider decompressing a nerve.
Because the problem is usually not in the skin. In notalgia paresthetica the backward branches of the upper thoracic spinal nerves are irritated where they pass through the back muscles, so the brain receives a constant itch-and-burn signal mapped to one fixed patch of skin. Moisturizers, steroid creams, and antihistamines target dryness, inflammation, and histamine — none of which generate this itch. Topical capsaicin helps precisely because it acts on the nerve endings, and the upstream driver is frequently a degenerative change in the neck or upper back at the matching level.
That combination — burning, tingling, or numbness in a patch on the front and outer thigh that does not cross the knee, with completely normal strength — is meralgia paresthetica until proven otherwise. The lateral femoral cutaneous nerve is a pure sensory nerve compressed near the inguinal ligament, so it can never cause weakness; any real leg weakness points somewhere else. Common triggers are tight waistbands and belts, pregnancy, prolonged hip extension including cycling, and rapid weight loss, which we now see regularly in patients 3 to 9 months into a GLP-1 medication.
Yes. The superficial branch of the radial nerve becomes very close to the skin about a hand-width above the wrist on the thumb side, exactly where a watchband or tracker sits. Chronic pressure there produces burning and electric pain on the back of the hand, the thumb-side wrist, and the top of the thumb — never the palm. That is Wartenberg's syndrome, and it is regularly mislabeled as carpal tunnel even though the two territories do not overlap. Removing the compressor is the first move; a diagnostic block confirms it.
The DN4 (Douleur Neuropathique 4) is a validated 10-item questionnaire developed by Bouhassira and colleagues in 2005 to screen for neuropathic pain. Seven of the ten items are patient-reportable without an exam; the remaining three require bedside touch and pinprick testing. This assessment administers the seven self-report items as an independent second read alongside the pattern-recognition output. The validated cutoff for the full 10-item DN4 is four or more out of ten; the seven-item self-report subset uses three or more out of seven. Those seven items used alone are only a moderate screen — roughly 70 percent sensitivity and 67 percent specificity in an unselected pain population (Timmerman et al., 2017) — so the result points toward an in-person exam rather than standing in for one.
No. Your answers are held in your own browser and are cleared after 24 hours. This tool has no contact form and no server endpoint, so there is nothing to transmit and nothing stored on our side. Anonymous usage analytics — which result screen was reached, not what you selected — may be recorded where privacy rules permit, and are disabled entirely for visitors in regions where consent has not been collected.
If it started after abdominal, pelvic, or breast surgery, use the post-surgical nerve pain self-assessment instead — it is built around the nerves that cross those operative fields, and this tool will route you there. If it started after chest or rib surgery, a rib fracture, or shingles, this assessment covers that under intercostal neuralgia. If your pain has no surgical history at all, this is the right tool.
Most major commercial PPO plans cover an evaluation for peripheral nerve entrapment and the associated image-guided diagnostic blocks, often with prior authorization. Modal Pain Management verifies your benefits before the first visit. We work with most major commercial PPO plans and do not participate with Medicare or Medicaid; if your insurance is Medicare-primary, the assessment result is still useful information to share with your existing care team.
What happens after the assessment
If the tool lands on a moderate- or high-confidence entrapment pattern, the recommended next step is a consult with Dr. Movshis at Modal Pain Management, 369 Lexington Avenue Floor 25, in Midtown Manhattan. Same-week new-patient consults are routinely available. Print or save your result and bring it — the named nerve and the tender point you found are exactly what focus the in-person exam.
The first visit pairs the cutaneous exam with a same-day ultrasound-guided diagnostic block when the exam supports one. A positive response — the familiar pain switching off in the anesthetic window — confirms which nerve is the generator and, with an anti-inflammatory added, is therapeutic for roughly 6 to 12 weeks.
Modal Pain Management does not accept Medicare. We work with most commercial PPO insurance plans, and the office team verifies your specific coverage before scheduling. If your insurance is Medicare-primary, the assessment is still useful information to share with your existing care team. Major NYC institutions that treat peripheral nerve pain under Medicare include the Hospital for Special Surgery Spine & Pain Center, the NYU Langone Comprehensive Pain Care Service, the Weill Cornell Center for Comprehensive Spine Care, and the Mount Sinai Pain Management Service. We are happy to coordinate a referral; call (646) 290-6660.
Read about peripheral nerve entrapment at Modal Pain or read about Dr. Movshis.