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  • Home
  • About Dr. Izadi
    • About Dr. Izadi
    • What's a Hand Surgeon?
    • Which Hand Surgeon is Right For Me?
    • Blog
  • Hand
    • Hand
    • Hand Anatomy
    • Hand Arthritis >
      • Hand Arthritis
      • Knuckle Arthritis
      • Thumb Arthritis
    • Dupuytren's Contracture
    • Fingers & Thumb >
      • Fingers & Thumb
      • Baseball (Mallet) Finger
      • Basketball Finger Injuries
      • Fingertip Injuries
      • Jammed Finger
      • Jersey Finger
      • Trigger Finger
      • Gamekeeper's Thumb
      • Skier's Thumb
      • Thumb Sprain
    • Ganglion Cysts
    • Hand Fractures
    • Nail Bed Injuries
    • Hand Numbness & Tingling
    • Hand Pain
    • Tendon Injuries >
      • Tendon Injuries
      • Extensor Tendon Injuries
      • Flexor Tendon Injuries
  • Wrist
    • Wrist
    • Wrist Anatomy
    • Wrist Arthritis
    • Wrist Arthroscopy
    • Carpal Tunnel Syndrome
    • Cyclist's Palsy
    • de Quervain's Tendonitis
    • Wrist Fractures >
      • Wrist Fracture
      • Scaphoid Fracture
      • Scaphoid Non-Union
    • Ganglion Cysts
    • Golf Injuries
    • Kienbock Disease
    • Wrist Pain
    • Snowboarding Injuries
  • Elbow
    • Elbow
    • Elbow Anatomy
    • Elbow Arthritis
    • Cubital Tunnel Syndrome
    • Distal Biceps Tendon Rupture
    • Elbow Fractures
    • Golfer's Elbow (Medial Epicondylitis)
    • Olecranon Bursitis
    • Elbow Pain
    • Tennis Elbow (Lateral Epicondylitis)
  • Arthritis
    • Arthritis
    • Inflammatory Arthritis
    • Juvenile Arthritis
    • Osteoarthritis
    • Post-Traumatic Arthritis
    • Psoriatic Arthritis
    • Rheumatoid Arthritis
  • Work Comp
    • Common Work Comp Claims >
      • Repetitive Motion Injuries
      • Slips, Trips and Falls
      • Fall to Lower Level
      • Machinery Accidents
      • Overexertion
      • Struck by an Object
      • Struck Against an Object
      • Bodily Reaction
      • Highway Incident
      • Workplace Violence
    • Work Comp >
      • Work Comp Second Opinion
      • Work Comp Appointment
      • Work Comp Injuries >
        • Acute Work Comp Injuries >
          • Fractures and Falls
          • Amputations
          • Agricultural Accidents
        • Chronic Work Comp Injuries >
          • Carpal Tunnel Syndrome
          • Cubital Tunnel Syndrome
          • Hand-Arm Vibration Syndrome
        • Hand Injuries
        • Wrist Injuries
        • Elbow Injuries
      • For Case Workers
    • Can you Choose Your Work Comp Doctor?
    • What is Workers' Compensation?
  • Second Opinion
  • PATIENTS
    • New Patients
    • Virtual Care
    • COVID-19
    • Surgery >
      • Wide Awake Hand Surgery
      • Anesthesia
      • Before Surgery
      • Day of Surgery
      • After Surgery
      • Smoking & Wound Healing
    • Steroid Injections
    • Patient Stories >
      • Scheduling Test
      • Embedded Schedule
  • Contact

Work-Related Hand-Arm Vibration Syndrome

Hand-arm vibration syndrome is a collection of vascular, neurological, and musculoskeletal effects that develop due to repeated exposure to vibrating hand tools. This can result in occupational Raynaud's phenomenon or occlusive arterial thrombosis. Damage to the vessel wall can lead to arterial spasms, aneurysm formation, and emboli.
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Hypothenar Hammer Syndrome

Hypothenar hammer syndrome is a form of hand-arm vibration syndrome. It is an occupational occlusive arterial disease and ulnar artery thrombosis. This injury occurs after repeated exposure to vibration or repetitive trauma to the hypothenar eminence because it is used as a "hammer." This causes the hook of the hamate to compress the superficial palmar branch of the ulnar artery. This can eventually lead to stenosis or occlusion of the ulnar artery. It is seen in workers in mining, forestry, automotive repair, and construction fields, most often occurring unilaterally in the dominant hand. Patients may present with cold fingers, pain, numbness, or ulcerations. In severe cases, the fingers may become ischemic and eventually gangrenous. The incidence has been reported to be between 1.6% to 7.3% in workers exposed to vibration.
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