• Origin: Brachial plexus (C5-T1)
• Runs along posterior arm
• Passes around humerus (spiral groove)
• Enters forearm via radial tunnel
• Divides into superficial and deep branches

• Extends from lateral epicondyle to supinator muscle
• Multiple potential compression points:
  • Fibrous bands at arcade of Frohse
  • Edge of extensor carpi radialis brevis
  • Supinator muscle (Frohse's arch)
  • Blood vessels ( leash of Henry)

• Extensors of wrist and fingers
• Supinator muscle
• Brachioradialis

Compression

• Fibrous bands
• Muscle anomalies
• Tumors (rare)
• Inflammation

Repetitive Stress

• Repetitive pronation/supination
• Gripping activities
• Frequent extension

• Previous trauma
• Fractures
• Tight casts or braces
• Masses or lesions
• Anatomical variations

• Occupations: Mechanics, painters, carpenters
• Sports: Tennis, baseball, golf
• Repetitive motions: Typing, using tools

• Anatomical variations: Variations in muscle/tendon anatomy
• Previous injuries: Forearm fractures
• Muscle hypertrophy: Athletes

• Inflammatory conditions
• Diabetes (increased risk of neuropathy)

• Pain: Dull, aching, burning
• Location: Lateral forearm, just below elbow
• Radiation: May radiate to wrist or elbow
• Worsens with: Pronation, supination, gripping
• Improves with: Rest, activity modification

• Tenderness over radial tunnel
• Pain with resisted supination
• Pain with finger extension against resistance
• Usually no weakness
• Usually no sensory loss

• Often gradual onset
• Worsens with activity
• May be mistaken for tennis elbow

• Tennis elbow: Often coexists
• Cubital tunnel syndrome: Different nerve
• Cervical radiculopathy: May mimic or coexist
• Brachial plexus injury: Different presentation

• Chronic pain
• Reduced activity
• Functional impairment

• Pain at lateral epicondyle
• Pain with wrist extension
• Often coexist

• Motor weakness
• Sensory changes
• Different pathophysiology

• Neck pain
• Different distribution
• Sensory changes

• Median nerve compression
• Different location
• May cause carpal tunnel symptoms

Activity Modification

• Avoid aggravating activities
• Rest the arm
• Modify technique/work

Pain Management

• NSAIDs
• Ice
• Topical treatments

Injections

• Corticosteroid injection around nerve
• May provide relief

• Decompression: Release of compressed nerve
• Usually for refractory cases
• Good success rates

Constitutional Remedies

• Hypericum: For nerve pain
• Rhus toxicodendron: For joint/stiffness
• Arnica: For trauma/inflammation

Herbal Support

• Shallaki: Anti-inflammatory
• Turmeric: Anti-inflammatory
• Ashwagandha: Nerve support

Goals

• Reduce compression
• Improve function
• Prevent recurrence

Techniques

• Nerve gliding exercises
• Stretching
• Strengthening
• Ergonomic modification

• Avoid repetitive motions
• Take breaks
• Use proper technique

• Ice for inflammation
• Heat for stiffness

• Gentle forearm stretches
• Wrist extensors
• Hold 30 seconds

• Proper workstation setup
• Tool modification
• Glove use

• Proper desk height
• Ergonomic tools
• Frequent breaks

• Gradual training increases
• Proper technique
• Adequate recovery

• Regular forearm stretches
• Before/after activities

• Most improve with conservative care
• 4-12 weeks for improvement
• Some require ongoing management

• Good results in refractory cases
• 70-90% improvement
• Recovery takes weeks to months

While they may coexist, tennis elbow is inflammation at the tendon attachment on the elbow. Radial tunnel syndrome is nerve compression in the forearm.

Most patients improve with conservative treatment. Surgery is reserved for cases that don't respond to 3-6 months of non-surgical treatment.

With proper treatment, most patients achieve significant improvement or resolution. Some may have recurrent symptoms.

Conservative treatment often takes 4-12 weeks. Recovery from surgery may take several months.