What are the common injuries associated with string trimmer (weed whacker) accidents?

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Last updated: May 16, 2025View editorial policy

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From the Research

Weed whacker injuries require immediate attention, and for minor injuries, cleaning the wound thoroughly with soap and water, applying an antibiotic ointment, and covering with a sterile bandage is essential. For pain management, taking acetaminophen (Tylenol) 500-1000mg every 6 hours or ibuprofen (Advil, Motrin) 400-600mg every 6 hours as needed is recommended 1. It is crucial to seek immediate medical attention for deep cuts, embedded debris, injuries near joints or eyes, or if the wound shows signs of infection (increasing redness, warmth, swelling, pus, or fever).

Prevention and Treatment

To prevent weed whacker injuries, always wear protective gear including safety glasses, long pants, closed-toe shoes, and gloves. Keep bystanders at least 50 feet away during operation. These injuries commonly occur from flying debris or direct contact with the cutting line, which rotates at high speeds and can cause significant tissue damage. Tetanus prophylaxis may be necessary if your last booster was more than 5 years ago for dirty wounds or 10 years for clean wounds.

Antibiotic Prophylaxis

The use of antibiotic prophylaxis in trauma patients is common practice, but it should be limited to specific cases due to the increasing rates of antibiotic resistance 1. A review of the literature and current guidelines recommends a 7- to 10-day course of ertapenem or moxifloxacin, with vancomycin if methicillin-resistant Staphylococcus aureus is suspected, for all penetrating trauma in prolonged casualty care 2. However, narrower regimens, which focus on matching up the site of infection to the antibiotic chosen, may be appropriate based on available resources and expertise of treating providers.

Key Considerations

  • Clean the wound thoroughly with soap and water
  • Apply an antibiotic ointment and cover with a sterile bandage
  • Seek immediate medical attention for deep cuts or signs of infection
  • Wear protective gear and keep bystanders at a safe distance during operation
  • Consider tetanus prophylaxis if necessary
  • Limit antibiotic prophylaxis to specific cases and consider narrower regimens when possible 1, 2

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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