Download PDF
Vet Comp Orthop Traumatol 1993; 06(03): 160-162
DOI: 10.1055/s-0038-1633115
Original Research
Schattauer GmbH

Holding Power of Orthopaedic Screws in Bovine Femoral Heads

A Comparison of 7.0 mm Cannulated Screws to 5.5 mm Cortical and 6.5 mm Cancellous Screws
D. G. Wilson
1   Comparative Orthopaedic Research Laboratory, Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
,
M. J. Ulm
1   Comparative Orthopaedic Research Laboratory, Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
› Author Affiliations
Further Information

Publication History

Received for publication 03 October 1992

Publication Date:
09 February 2018 (online)

    Permissions and Reprints

Summary

Femoral capital physeal fractures have been successfully repaired using 7.0 mm cannulated screws. The holding power of 7.0 mm cannulated screws was compared to the holding power of 5.5 mm cortical screws and 6.5 mm cancellous screws using paired bovine femoral heads. The 7.0 mm cannulated screw’s holding power was superior to the 6.5 mm cancellous screw and similar to that of the 5.5 mm cortical screw.

When placed in the bovine femoral head, 7.0 mm cannulated screws have holding power greater than 6.5 mm cancellous screws and similar to 5.5 mm cortical screws.

Keywords

Femoral capital physeal fractures - cannulated screw - cattle
 

  • REFERENCES

  • 1 Wilson DG, Crawford WH, Stone WC, Frampton JW. Fixation of femoral capital physeal fractures with 7.0 mm cannulated screws in five bulls. Vet Surg 1991; 20: 240-4.
    CrossrefPubMedGoogle Scholar
  • 2 Hughes AN, Jordan BA. The mechanical properties of surgical bone screws and some aspects of insertion practice. Injury 1972; 4: 25-8.
    CrossrefPubMedGoogle Scholar
  • 3 Schatzker J, Sanderson R, Murnaghan JP. The holding power of orthopedic screws in vivo. Clin Orthop 1975; 108: 115-26.
    CrossrefPubMedGoogle Scholar
  • 4 Yovich JV, Turner AS, Smith FW. Holding power of orthopedic screws in equine third metacarpal and metatarsal bones. Part I. Foal bone. Vet Surg 1985; 14: 221-9.
    CrossrefPubMedGoogle Scholar
  • 5 Rehnberg L, Olerud C. Subchondral screw fixation for femoral neck fractures. J Bone Joint Surg [Br] 1989; 71-B: 178-80.
    CrossrefPubMedGoogle Scholar
  • 6 Brooks DB, Burstein AH, Frankel VH. The biomechanics of torsional fractures: the stress concentration effect of a drill hole. J Bone Joint Surg 1970; 52-A: 507-14.
    PubMedGoogle Scholar
  • 7 Mather BS. The symmetry of the mechanical properties of the human femur. J Surg Res 1967; 7: 222-5.
    CrossrefPubMedGoogle Scholar
  • 8 Yovich JV, Turner AS, Smith FW. Holding power of orthopedic screws in equine third metacarpal and metatarsal bones. Part II. Adult horse bone. Vet Surg 1985; 14: 230-4.
    CrossrefPubMedGoogle Scholar
  • 9 Springer ER, Lachiewicz PF, Gilber JA. Internal fixation of femoral neck fractures. Clin Orthop 1991; 267: 85-92.
    PubMedGoogle Scholar
  • 10 Moran JC. Personal Communication, 1989
    PubMed