Vet Comp Orthop Traumatol 1994; 07(01): 9-13
DOI: 10.1055/s-0038-1633036
Original Research
Schattauer GmbH

A Scintigraphic Investigation of Magnetic Field Therapy on the Equine Third Metacarpus

C. N. Kobluk
1   From the Department of Clinical and Population Sciences, College of Veterinary Medicine, St. Paul, USA
,
G. R. Johnston
2   From the Department of Small Animal Clinical Sciences, College of Veterinary Medicine, St. Paul, USA
,
Linda Lauper
1   From the Department of Clinical and Population Sciences, College of Veterinary Medicine, St. Paul, USA
› Author Affiliations
Further Information

Publication History

Received for publication 06 June 1993

Publication Date:
06 February 2018 (online)

Summary

Scintigraphy was performed in the vascular, soft tissue and bone phase to demonstrate increased blood flow resulting from the local application of a permanent magnetic pad on the equine third metacarpus using a crossover trial in eight horses.

The results of the vascular phase showed a highly significant (p <0.01) increase in counts associated with magnet application. An increase in counts results from increased blood flow carrying more radionuclide to the area investigated. Fifteen of the sixteen limbs tested showed an increased vascular response. The soft tissue phase had a highly significant response (p = 0.01) with thirteen of the sixteen limbs showing increased activity. The bone phase also had a highly significant response (p <0.01) with fourteen of the sixteen limbs showing increased activity.

This study shows that the Equinepad® applied to the third metacarpus of the horse increases the circulation and metabolic activity of the soft tissue and bone. These effects show some variability in degree and occur in the majority of limbs tested.

Scintigraphy was performed in the vascular, soft tissue and bone phase using a cross over trial to demonstrate increased blood flow and metabolic activity as a result of the local application of a permanent magnetic pad on the equine metacarpus. A highly significant increase was evident in the three phases.

 
  • References

  • 1 Jones WE. Magnetic field therapy. Equine Vet Data 1983; 22: 337-52.
  • 2 Baermann H. The influence of multipolar static magnetic fields in the electrolytic system of the living organism with special reference to circular and radial pole patterns. Presented at the International Conference on Biomagnetism, Newport, RI. USA, 1989
  • 3 Turner TA, Wolfsdorf K, Jourdenals J. Effects of heat, cold, biomagnets and ultrasound on skin circulation in the horse. In: 37th Annual AAEP Convention Proceedings. 1991: 249-57.
  • 4 Warnke V. Aspckte zur magnetischen Kraftwirkung auf biologische Systemc. Die Heilkunst 1976; 91 (01) 1.
  • 5 Pratt GW, Mishra L. The effect of the Bioflex magnet pad on the flow rate of 5% aqueous saline solution. Massachusetts Institute of Technology, presented at Inter-national Symposium on Biomagnetism, Newport, RI, USA, 1989
  • 6 Collier MA, Loree RL, Antosiewicz PJ. Radioisotope uptake in normal equine bone under the influence of a pulsed electromagnetic field. Mod Vet Pract 1985; 66: 971-4.
  • 7 Papagcorges M, Gavin PR, Barbee DD. et al. Quantitative “ Tc-MDP joint scintigraphy in a lentivirus-induced arthritis of goats. Vet Radiol 1991; 32: 82.
  • 8 Metcalf MR, Twardock AR, Sanecki RK. “ Tc-MDP combined blood pool and bone phase radionuclide imaging in papaininjected carpal joints. Vet Radiol 1985; 26: 106.
  • 9 Lavender JP, Khan RAA, Hughes SPF. Blood flow and tracer uptake in normal and abnormal canine bone: comparison with Sr microspheres, Kr, and “ Tc MDP. J Nucl Med 1979; 20: 413.
  • 10 Johnson PJ, Allhands RV, Baker GJ. Incomplete linear tibial fractures in two horses. J Am Vet Med Assoc 1988; 192: 522.
  • 11 Koblik PD, Hornof WJ, Seeheman HJ. Scintigraphic appearance of stress-induced trauma of the dorsal cortex of the third metacarpal bone in racing Thoroughbred horses: 121 cases (1978-1986).
  • 12 Lamb CR, Koblik PD. The scintigraphy evaluation of skeletal disease and its applications to the horse. Vet Radiol 1988; 29: 16.
  • 13 Lamb CR, Koblik PD, O’Callahan MW. et al. Comparison of bone scintigraphy and radiography as aids in the evaluation of equine lameness: Retrospective analysis of 275 cases. Proc Am Assoc Equine Pract 1988; 34: 359.
  • 14 Steckel RR. The role of scintigraphy in the lameness evaluation. Vet Clin North Am Equine Practice 1991; 7: 207.
  • 15 Holder LE. Clinical radionuclide bone imaging. Radiology 1990; 176: 607.
  • 16 Krishnamurthy GT, Huebotter RJ, Tubis M. et al. Pharmacokinetics of current skeletal-seeking radiopharmaceuticals. Am J Roentgenol 1976; 126: 293.
  • 17 Riggs SA, Wood MB, Cooney WP. et al. Blood flow and bone uptake of Tc - labeled methylene diphosphonate. J Orthop Res 1984; 1: 236.
  • 18 Nutton RW, Fitzgerald RH, Kelly PJ. Early dynamic bone-imaging as an indicator of osseous blood flow and factors affecting the uptake of “ Tc-hydroxymcthylene phosphate in healing bone. J Bone Joint Surg 1985; 67A: 763.
  • 19 Matin P. Bone scintigraphy in the diagnosis and management of traumatic injury. Semin Nucl Med 1983; 13: 104.
  • 20 Holder LE. Current concepts review: Radionuclide bone imaging in the evaluation of bone pain. J Bone Joint Surg 1982; 64A: 1391.
  • 21 Matin P. Basic principles of nuclear medicine techniques for detection of an evaluation of trauma and sports medicine injuries. Semin Nucl Med 1988; 18: 90.
  • 22 Lamb C. Principles and practice of bone scintigraphy in small animals. Semin Vet Med Surg (SA) 1991; 6: 140.
  • 23 Rupani HD, Holder LE, Espinola DA. Three-phase radionuclide bone imaging in sports medicine. J Nucl Med 1985; 156: 187.
  • 24 Charkes ND. Mechanisms of skeletal tracer uptake. J Nucl Med 1979; 20: 794.
  • 25 Charkes ND. Skeletal blood flow: Implications for bone scan interpretation. J Nucl Med 1980; 21: 91.
  • 26 Kirchner PT, Simon MA. Radioisotopic evaluation of skeletal disease. J Bone Joint Surg 1981; 63A: 673.
  • 27 Duncan CP, Shim SS. The autonomic nerve supply of bone. An experimental study of the intraosseous adrenergic nervi vasorum in the rabbit. J Bone Jount Surg 1977; 59B: 323.
  • 28 Auer JA, Barch GE, Hall P. Review of pulsing electromagnetic field therapy and its possible application to horses. Eq Vet J 1983; 15 (04) 354-360.