Upper and Lower Limb Neurology (OSCE)

Related Subjects: |Breast Anatomy and Examination (OSCE) |Shoulder examination(OSCE) |Testicular examination(OSCE) |Hernia Examination (OSCE) |Rectal examination (OSCE) |Liver Examination (OSCE) |Cerebellar Examination (OSCE) |Upper and Lower Limb Neurology (OSCE) |Gastroenterology Examination (OSCE) |Respiratory Examination (OSCE) |Cardiology Examination (OSCE) |OSCE Eye Exam |OSCE Ear Exam |OSCE Abdominal Exam |OSCE Ascites Exam |OSCE Jaundice Exam |OSCE Testicular Exam |OSCE Inguinal Exam |OSCE Upper limb Neurology |OSCE Lower limb Neurology |OSCE Face Neurology |OSCE Visual Fields

🧠 The limb neurology exam is an active, systematic, hypothesis-driven process - inspect, test tone/power/reflexes/sensation/coordination, then integrate findings to localise the lesion (UMN vs LMN vs cerebellar vs peripheral). Time goal: 6–8 minutes. Verbalise every step aloud (gains marks even if you miss something). Always finish by stating how you’d complete the exam: “To complete my neurological examination, I would like to perform a full cranial nerve examination, assess cerebellar function (including speech), check for pronator drift in the upper limbs, and arrange neuroimaging, nerve conduction studies/EMG, and blood tests (B12, glucose, thyroid, inflammatory markers) as appropriate.”

🔑 Step-by-Step Limb Neurology OSCE Sequence (High-Yield Flow)

1. 🧼 Preparation & Introduction (30–45 s)
   • Wash hands, introduce yourself, confirm name/DOB/hospital number.
   • Explain: “I’m going to examine the strength, reflexes, sensation, and coordination in your arms and legs. It involves looking, feeling, tapping with a hammer, and testing sensation. It shouldn’t hurt, but tell me if anything is uncomfortable.”
   • Gain verbal consent, offer chaperone, expose arms and legs (preserve dignity), position supine or sitting (adjust for comfort).
   • Verbalise: “I’m positioning the patient supine with arms and legs exposed for optimal assessment.”
2. 👀 General Inspection (End of Bed – 15–20 s)
   • Patient: muscle wasting/asymmetry, fasciculations, contractures, foot drop, claw hand, wheelchair/splints/walking aids, tremor, chorea, dystonia.
   • Environment: orthoses, mobility aids, NG tube (bulbar involvement), urine bottle (incontinence in MS).
   • Verbalise: “From the end of the bed, I note bilateral foot drop and a walking frame, suggestive of a lower motor neurone pattern.”
3. 🙂 Face, Speech & Quick Cognitive Screen (30 s)
   • Face: ptosis, facial weakness (facial nerve or UMN), dysarthria (bulbar), dysphonia.
   • Speech: ask to say “British Constitution” or “West Register Street” (dysarthria screening).
   • Cognitive: orientation (time/place/person), attention (months backwards), naming objects.
   • Verbalise: “I’m screening speech and cognition to exclude bulbar or central involvement.”
4. 💪 Upper Limbs – Motor Examination (2–3 min)
   • Inspection: wasting (thenar/hypothenar, forearm), fasciculations (ALS), scars (cubital tunnel release), claw hand (ulnar), wrist drop (radial).
   • Tone: hold forearm, flex/extend elbow, pronate/supinate → spasticity (clasp-knife, UMN), rigidity (lead-pipe/cogwheel, extrapyramidal).
   • Power (MRC 0–5 scale):

   Movement	Root	MRC Grading
   Shoulder abduction	C5	Deltoid
   Elbow flexion	C5/6	Biceps/brachialis
   Wrist extension	C6/7	Extensor carpi radialis
   Finger extension	C7/8	Extensor digitorum
   Finger abduction	T1	Dorsal interossei
   Thumb opposition	C8/T1	Opponens pollicis

5. Reflexes:
   • Biceps (C5/6) – hammer strike on biceps tendon.
   • Supinator (C5/6) – brachioradialis.
   • Triceps (C7) – triceps tendon.
   • Hoffmann’s sign: flick middle finger → thumb flexion = UMN lesion.
6. Coordination:
   • Finger–nose: intention tremor, past-pointing (cerebellum).
   • Dysdiadochokinesis: rapid pronation/supination (cerebellum).
   • Rebound phenomenon: pull arms away → overshoot (cerebellum).
7. 🦵 Lower Limbs – Motor Examination (2–3 min)
   • Inspection: wasting (quadriceps, calves), fasciculations, foot drop, high arches (pes cavus – Charcot-Marie-Tooth), hammer toes, scars (spinal surgery).
   • Tone: clonus (sustained >5 beats = UMN), rigidity.
   • Power (MRC 0–5):

   Movement	Root	Muscle
   Hip flexion	L2/3	Iliopsoas
   Knee extension	L3/4	Quadriceps
   Ankle dorsiflexion	L4/5	Tibialis anterior
   Big toe extension	L5	Extensor hallucis longus
   Ankle plantarflexion	S1/2	Gastrocnemius

8. Reflexes:
   • Knee jerk (L3/4) – patellar tendon.
   • Ankle jerk (S1) – Achilles tendon.
   • Plantar response: upgoing (Babinski) = UMN; downgoing = normal.
   • Ankle clonus: dorsiflex foot → sustained beats (>5 = UMN).
9. Coordination: heel–shin test (cerebellum), tandem walking.
10. 🚶 Gait & Functional Assessment (30–60 s)
    • Normal walking: base width, arm swing, posture, turn.
    • Heel walking: L4/5 weakness (foot drop).
    • Toe walking: S1 weakness (plantarflexion).
    • Tandem (heel-toe): cerebellar ataxia, proprioceptive loss.
    • Romberg test: proprioceptive loss (positive = sway/eyes closed).
    • Patterns:
      • Hemiplegic: circumduction, flexed arm.
      • Spastic: scissoring gait.
      • High-stepping: foot drop (peripheral neuropathy).
      • Waddling: proximal myopathy.
      • Shuffling: Parkinsonism.
11. 🙏 Closure & Completion
    • Thank patient, help redress, wash hands.
    • Present findings: “This patient has upper motor neurone signs in the right upper and lower limbs, with increased tone, brisk reflexes, and an upgoing plantar - consistent with a left-sided hemispheric lesion.”
    • State: “To complete my neurological examination, I would perform a full cranial nerve examination, assess cerebellar function (including speech and eye movements), check for pronator drift, and arrange neuroimaging (CT/MRI brain), nerve conduction studies/EMG, and blood tests (B12, glucose, thyroid, inflammatory markers, CK).”

📊 High-Yield Neurology Findings Table (OSCE Master Reference)

🚩 Red Flags & Do-Not-Miss OSCE Points

• Asymmetric wasting + fasciculations → motor neurone disease (ALS) until proven otherwise.
• Upgoing plantars + hyperreflexia + spasticity → UMN lesion (stroke, MS, spinal cord compression – emergency if acute).
• Glove-and-stocking sensory loss + absent ankle jerks → peripheral neuropathy (diabetes, B12 deficiency, alcohol).
• Intention tremor + dysdiadochokinesis + wide-based gait → cerebellar pathology (stroke, MS, alcohol, paraneoplastic).
• Positive Romberg + proprioceptive loss → dorsal column pathology (B12 deficiency, tabes dorsalis).

💡 OSCE Examiner & Candidate Pearls

• Always test a normal area first for sensation (e.g., sternum) to calibrate patient understanding.
• Kneel when testing lower limb power/reflexes (better control, shows thoroughness).
• Reinforce reflexes if absent (Jendrassik manoeuvre – clench teeth or pull hands apart).
• Verbalise: “I’m now testing light touch sensation in the C6 dermatome (thumb) and comparing sides.”
• Common fail points: missing coordination (finger-nose, heel-shin), forgetting to test plantars, not checking gait patterns, rushing sensory testing.
• Present findings: group by upper motor neurone, lower motor neurone, cerebellar, sensory patterns - localise the lesion.

📚 References & Resources (Feb 2026)

• Talley & O’Connor – Clinical Examination (9th ed., 2025 update).
• Geeky Medics Neurological Examination OSCE Guide (2026 revision).
• OSCEstop & PassMedicine neurology sections.
• NICE Guidelines: Suspected Neurological Conditions (2025).