Prefer to watch? 4-minute lesson13 slides · same content, shorter

1 · SNAPSHOT

Cubital Tunnel Syndrome (Ulnar Nerve) body chart — Illustrative, not diagnostic. Canva body chart for Cubital Tunnel Syndrome (Ulnar Nerve).

Who: Anyone who spends time in sustained elbow flexion or leaning on the elbow. Desk work, phone, driving, cycling handlebars, sleeping posture. Previous elbow trauma or subluxation.
What: Ulnar neuropathy at the elbow — a positional and compressive problem.
How it behaves: Numbness and tingling in the 4th and 5th digits, sometimes a medial elbow ache — but the ache doesn't point to the nerve: it was negatively correlated with a positive nerve conduction result (Speach et al. 2016) [22]. Worse with flexion or leaning. Eased by extension or shaking the arm. Night symptoms are common. "Phone elbow."

The one thing to take from this page:

You are not stretching the nerve. You are giving it room.

Elbow flexion increases both strain and compression at the tunnel ([1]; Wadsworth & Williams 1973). That single fact explains the provoking postures, the splint position, and why sliders come before tensioners.

Where the line sits

Early — yours	Later — not yours
Intermittent, sensory	Constant numbness
Positional, eased by extension	Weak grip and interossei
No motor findings	Clawing, first dorsal interosseous wasting
Improving on a conservative block	Progressive

⚠️ No Australian guideline exists. Anchored to the Cochrane review [2], whose position is that the conservative-versus-surgical choice is matched to severity, motor deficit and response over time — not to a fixed pathway.

2 · SE — THE SUBJECTIVE PATTERN (the 70%)

Five stages, in your course's order. The provoking postures are the history — and most of them happen when the patient isn't thinking about their elbow.

MAIN PROBLEM

"My little finger and the one next to it go numb."
"It wakes me up and I have to straighten my arm."
"If I lean on my elbow at the desk it starts within minutes."

BODY CHART

Map the ulnar territory — 4th and 5th digits, and the dorsoulnar hand. That dorsal branch is what separates elbow-level from Guyon's canal.
Mark the medial elbow ache separately from the hand symptoms.
Draw both hands. Bilateral changes the thinking.

BEHAVIOUR

	Fits cubital tunnel	Points elsewhere
Aggs	Sustained flexion, leaning on the elbow, phone, driving, sleeping	Wrist position → Guyon's canal
Eases	Extension, shaking the arm, changing position	Nothing changes it → screen wider
Severity	VAS 0–10 at best / at worst / right now	—
Night	Common — the elbow flexes in sleep	Constant, non-positional → escalate
Course	Intermittent, exposure-related	Progressive → escalate

HISTORY

Positional compression, in detail. How do they sit at a desk? Hold a phone? Drive? Sleep? Cycle?
Occupational and sport load — gripping, lifting, throwing, handlebars.
Previous elbow trauma, fracture or dislocation.
Does the nerve ever feel like it flicks or clicks over the bone? That is the instability question.

SPECIAL / SCREENING QUESTIONS

Dropping objects, difficulty spreading the fingers, losing pinch strength — the motor screen, and it changes the pathway.
Neck symptoms — the C8 question, and the double-crush question.
Diabetes or other systemic neuropathy risk.
Bilateral or stocking-distribution symptoms — think systemic.

Assessing this region? Download the Elbow assessment template →

3 · HYPOTHESIS RANKING

Competing pattern	The one discriminating feature
Ulnar collateral ligament injury	Medial pain during throwing, positive valgus and moving valgus stress, possible joint-line gapping. No 4th/5th digit numbness.
Medial elbow flexor tendinopathy	Tender at the medial epicondyle and flexor-pronator origin, pain on resisted wrist flexion and pronation.
C8 radiculopathy	Neck involvement with a root-level pattern. Cubital tunnel is a focal peripheral entrapment with a positive Tinel's at the tunnel.

And the ones that live further along the same nerve

Guyon's canal compression at the wrist — spares the dorsoulnar hand, because that branch leaves before the wrist. Thoracic outlet features. Diabetic or other polyneuropathy. And double crush, where two levels coexist and neither alone explains the picture.

The ulnar nerve is also just variable. Anatomy, pathophysiology and biopsychosocial factors all contribute to why symptoms and outcomes differ between people who look similar on paper [3]. That is worth knowing before you promise a timeline.

4 · RED FLAGS — DON'T MISS THIS

This section is free, on every pattern, forever. Safety is never gated.

Finding	What it suggests	What you do
Progressive weakness	Advancing neuropathy	Urgent surgical opinion
Intrinsic wasting, first dorsal interosseous	Established motor loss	Surgical opinion
Clawing of the 4th and 5th digits	Chronic severe involvement	Surgical opinion
Constant numbness, not positional	Beyond mechanosensitivity	Escalate
Nerve instability or subluxation over the epicondyle	Structural	Surgical opinion
Suspected mass or cyst	Space-occupying lesion	Imaging, then surgical opinion
An atypical picture that won't sit at the elbow	C8 radiculopathy or a Pancoast tumour — both belong in the differential for atypical cases (Assmus et al. 2011) [23]	Screen the neck; medical referral
Bilateral, or a stocking distribution	Systemic neuropathy	Medical referral
Weakness without sensory symptoms, wasting across more than one nerve territory, or bulbar signs — speech or swallowing change, tongue fasciculations	Motor neurone disease mimicking an entrapment	Neurology referral, not more splinting (Thomson et al. 2023) [24]
No response to a focused 6–12 week conservative block	Wrong level, or needs escalation	EDX or ultrasound, then referral

The rule: intermittent sensory symptoms that change with position are yours. Weakness, wasting, clawing, constant numbness or instability are not.

Cross-links: Peripheral nerve entrapments · Progressive neuropathy / compression syndrome · Lateral elbow tendinopathy

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Twelve slides on this pattern: what you'll hear, what to examine, what to do. Free with an account.

Guideline anchor

No Australian guideline covers ulnar neuropathy at the elbow.

Anchored to the Cochrane review of treatment (Caliandro et al. 2025, PMID 40298125), the systematic review of conservative care (Kooner et al. 2019, PMID 31281598), and the evidence-based neuromuscular ultrasound guideline for diagnosis (Shook et al. 2022, PMID 34921428).

PubMed Source

The Cochrane review is a synthesis, not a guideline, and its position is that the choice between conservative and surgical care should be matched to severity, motor deficit and response over time rather than to a fixed pathway. The ultrasound anchor is a diagnostic guideline written for neurologists and neurophysiologists, not physiotherapists.

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The evidence summary is for members

Verified diagnostic accuracy, where the evidence stands and what it doesn't settle. Free with an account.

Sources · 20

Show

Every source on this page resolves and title-verifies against PubMed. Newest first.

2026Hu & Zhou (2026). Geometric and biomechanical perspectives on ulnar nerve compression in cubital tunnel syndrome: pathomechanics and surgical strategies. Annals of medicine and surgery (2012), 88(1), 422-435. https://doi.org/10.1097/MS9.0000000000004348
2025Caliandro et al. (2025). Treatment for ulnar neuropathy at the elbow. The Cochrane database of systematic reviews, 4(4), CD006839. https://doi.org/10.1002/14651858.CD006839.pub5
2024Nyman & Dahlin (2024). The Unpredictable Ulnar Nerve-Ulnar Nerve Entrapment from Anatomical, Pathophysiological, and Biopsychosocial Aspects. Diagnostics (Basel, Switzerland), 14(5). https://doi.org/10.3390/diagnostics14050489
2015Campbell et al. (2015). Ulnar neuropathy at the elbow: Five new things. Neurology. Clinical practice, 5(1), 35-41. https://doi.org/10.1212/CPJ.0000000000000097
2022Shook et al. (2022). Evidence-based guideline: Neuromuscular ultrasound for the diagnosis of ulnar neuropathy at the elbow. Muscle & nerve, 65(2), 147-153. https://doi.org/10.1002/mus.27460
2018Alrajeh & Preston (2018). Neuromuscular ultrasound in electrically non-localizable ulnar neuropathy. Muscle & nerve, 58(5), 655-659. https://doi.org/10.1002/mus.26291
2007Zlowodzki et al. (2007). Anterior transposition compared with simple decompression for treatment of cubital tunnel syndrome. A meta-analysis of randomized, controlled trials. The Journal of bone and joint surgery. American volume, 89(12), 2591-8. https://doi.org/10.2106/JBJS.G.00183
2020Wade et al. (2020). Safety and Outcomes of Different Surgical Techniques for Cubital Tunnel Decompression: A Systematic Review and Network Meta-analysis. JAMA network open, 3(11), e2024352. https://doi.org/10.1001/jamanetworkopen.2020.24352
1973Wadsworth & Williams (1973). Cubital tunnel external compression syndrome. British medical journal, 1(5854), 662-6. https://doi.org/10.1136/bmj.1.5854.662
2008Macadam et al. (2008). Simple decompression versus anterior subcutaneous and submuscular transposition of the ulnar nerve for cubital tunnel syndrome: a meta-analysis. The Journal of hand surgery, 33(8), 1314.e1-12. https://doi.org/10.1016/j.jhsa.2008.03.006
2017Staples & Calfee (2017). Cubital Tunnel Syndrome: Current Concepts. The Journal of the American Academy of Orthopaedic Surgeons, 25(10), e215-e224. https://doi.org/10.5435/JAAOS-D-15-00261
2019Kooner et al. (2019). Conservative treatment of cubital tunnel syndrome: A systematic review. Orthopedic reviews, 11(2), 7955. https://doi.org/10.4081/or.2019.7955
2020Nakashian et al. (2020). Cubital Tunnel Syndrome: Current Concepts. Current reviews in musculoskeletal medicine, 13(4), 520-524. https://doi.org/10.1007/s12178-020-09650-y
2021Cambon-Binder (2021). Ulnar neuropathy at the elbow. Orthopaedics & traumatology, surgery & research : OTSR, 107(1S), 102754. https://doi.org/10.1016/j.otsr.2020.102754
2022Wolny et al. (2022). The Effects of Physiotherapy in the Treatment of Cubital Tunnel Syndrome: A Systematic Review. Journal of clinical medicine, 11(14). https://doi.org/10.3390/jcm11144247
2022Anderson et al. (2022). A Comprehensive Review of Cubital Tunnel Syndrome. Orthopedic reviews, 14(3), 38239. https://doi.org/10.52965/001c.38239
2023Natroshvili et al. (2023). Conservative Treatment of Ulnar Nerve Compression at the Elbow: A Systematic Review and Meta-Analysis. Archives of plastic surgery, 50(1), 70-81. https://doi.org/10.1055/s-0042-1757571
2023Graf et al. (2023). Modern Treatment of Cubital Tunnel Syndrome: Evidence and Controversy. Journal of hand surgery global online, 5(4), 547-560. https://doi.org/10.1016/j.jhsg.2022.07.008
2023Shelke et al. (2023). From Conservative Measures to Surgical Interventions, Treatment Approaches for Cubital Tunnel Syndrome: A Comprehensive Review. Cureus, 15(12), e51262. https://doi.org/10.7759/cureus.51262
2024Wieczorek et al. (2024). The Use of Physiotherapy in the Conservative Treatment of Cubital Tunnel Syndrome: A Critical Review of the Literature. Diagnostics (Basel, Switzerland), 14(11). https://doi.org/10.3390/diagnostics14111201

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