Skeletal Radiology

, Volume 40, Issue 6, pp 783–787 | Cite as

Stun gun induced myotendinous injury of the iliopsoas and gluteus minimus

  • Joseph C. Giaconi
  • Michael D. Ries
  • Lynne S. Steinbach
Case Report

Abstract

We report a 57-year-old man with a complete tear of his iliopsoas tendon at the distal myotendinous junction, a near complete tear of the iliopsoas tendon at the lesser trochanter of the femur, and a high-grade tear of his gluteus minimus tendon at the greater trochanter of the femur after being struck by a stun gun in the proximal left thigh. The stun gun discharge resulted in a forced contraction of the left hip flexor muscles, which resulted in pain, weakness and difficulty with active hip flexion. Three months after the being struck with the stun gun, the patient underwent magnetic resonance imaging (MRI) of the left hip. MRI of the left hip revealed a complete tear of the left iliopsoas tendon from the lesser trochanter with 4 cm of proximal retraction and a high-grade strain of the gluteus minimus tendon at the greater trochanter. The distal iliopsoas myotendinous junction and lesser trochanter tendon insertion were surgically repaired. This case illustrates that a stun gun can cause acute rupture of the iliopsoas tendon and tear of the gluteus minimus tendon, which is well visualized on MRI.

Keywords

Iliopsoas Myotendinous Strain Stun gun 

References

  1. 1.
    Fish RM, Geddes LA. Effects of stun guns and tasers. Lancet. 2001;358(9283):687–8.PubMedCrossRefGoogle Scholar
  2. 2.
    Bleetman A, Steyn R, Lee C. Introduction of the Taser into British policing. Implications for UK emergency departments: an overview of electronic weaponry. Emerg Med J. 2004;21(2):136–40.PubMedCrossRefGoogle Scholar
  3. 3.
    O’Brien DJ. Electronic weaponry—a question of safety. Ann Emerg Med. 1991;20(5):583–7.PubMedCrossRefGoogle Scholar
  4. 4.
    Jain S, Bandi V. Electrical and lightning injuries. Crit Care Clin. 1999;15(2):319–31.PubMedCrossRefGoogle Scholar
  5. 5.
    Burdett-Smith P. Stun gun injury. J Accid Emerg Med. 1997;14(6):402–4.PubMedGoogle Scholar
  6. 6.
    Panescu D, Kroll MW, Efimov IR, Sweeney JD. Finite element modeling of electric field effects of TASER devices on nerve and muscle. Conf Proc IEEE Eng Med Biol Soc. 2006;1:1277–9.PubMedCrossRefGoogle Scholar
  7. 7.
    Robb M, Close B, Furyk J, Aitken P. Review article: Emergency Department implications of the TASER. Emerg Med Australas. 2009;21(4):250–8.PubMedCrossRefGoogle Scholar
  8. 8.
    Dawes DM, Ho JD, Reardon RF, Miner JR. The cardiovascular, respiratory, and metabolic effects of a long duration electronic control device exposure in human volunteers. Forensic Sci Med Pathol 2010;6(4):268–74.PubMedCrossRefGoogle Scholar
  9. 9.
    Kroll MW, Panescu D, Carver M, Kroll RM, Hinz AF. Cardiac effects of varying pulse charge and polarity of TASER conducted electrical weapons. Conf Proc IEEE Eng Med Biol Soc. 2009;2009:3195–8.PubMedGoogle Scholar
  10. 10.
    Vanga SR, Bommana S, Kroll MW, Swerdlow C, Lakkireddy D. TASER conducted electrical weapons and implanted pacemakers and defibrillators. Conf Proc IEEE Eng Med Biol Soc. 2009;2009:3199–204.PubMedGoogle Scholar
  11. 11.
    Multerer S, Berkenbosch JW, Das B, Johnsrude C. Atrial fibrillation after taser exposure in a previously healthy adolescent. Pediatr Emerg Care. 2009;25(12):851–3.PubMedCrossRefGoogle Scholar
  12. 12.
    Cao M, Shinbane JS, Gillberg JM, Saxon LA, Swerdlow CD. Taser-induced rapid ventricular myocardial capture demonstrated by pacemaker intracardiac electrograms. J Cardiovasc Electrophysiol. 2007;18(8):876–9.PubMedCrossRefGoogle Scholar
  13. 13.
    Ho JD, Dawes DM, Heegaard WG, Miner JR. Human research review of the TASER electronic control device. Conf Proc IEEE Eng Med Biol Soc. 2009;2009:3181–3.PubMedGoogle Scholar
  14. 14.
    Panescu D, Kroll MW, Stratbucker RA. Medical safety of TASER conducted energy weapon in a hybrid 3-point deployment mode. Conf Proc IEEE Eng Med Biol Soc. 2009;2009:3191–4.PubMedGoogle Scholar
  15. 15.
    Dawes DM, Ho JD, Reardon RF, Sweeney JD, Miner JR. The physiologic effects of multiple simultaneous electronic control device discharges. West J Emerg Med. 2010;11(1):49–56PubMedGoogle Scholar
  16. 16.
    Ho JD, Dawes DM. TASER Device-induced rhabdomyolysis is unlikely. J Emerg Med 2011;40(1):68–9.PubMedCrossRefGoogle Scholar
  17. 17.
    Sweeney JD. Theoretical comparisons of nerve and muscle activation by neuromuscular incapacitation devices. Conf Proc IEEE Eng Med Biol Soc. 2009;2009:3188–90.PubMedGoogle Scholar
  18. 18.
    Payne-James J, Sheridan B, Smith G. Medical implications of the Taser. BMJ. 2010;340:c853PubMedCrossRefGoogle Scholar
  19. 19.
    Strote J, Walsh M, Angelidis M, Basta A, Hutson HR. Conducted electrical weapon use by law enforcement: an evaluation of safety and injury. J Trauma. 2010;68(5):1239–46.PubMedCrossRefGoogle Scholar

Copyright information

© ISS 2011

Authors and Affiliations

  • Joseph C. Giaconi
    • 1
  • Michael D. Ries
    • 2
  • Lynne S. Steinbach
    • 3
  1. 1.S. Mark Taper Foundation Imaging CenterCedars Sinai Medical CenterLos AngelesUSA
  2. 2.Department of Orthopaedic SurgeryUniversity of California San FranciscoSan FranciscoUSA
  3. 3.Department of RadiologyUniversity of California San FranciscoSan FranciscoUSA

Personalised recommendations