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Journal of Bone and Joint Surgery - British Volume, Vol 89-B, Issue 5, 686-692.
doi: 10.1302/0301-620X.89B5.18695  
Copyright © 2007 by British Editorial Society of Bone and Joint Surgery
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Vibration-assisted bone-graft compaction in impaction bone grafting of the femur

B. J. R. F. Bolland, FRCS, Specialist Registrar in Trauma and Orthopaedics1; A. M. R. New, PhD, Lecturer Bioengineering Research Group2; S. P. G. Madabhushi, PhD, Reader3; R. O. C. Oreffo, DPhil, Professor1; and D. G. Dunlop, MD, FRCS(Trauma & Orth), Consultant Orthopaedic Surgeon1

1 Bone and Joint Research Group, Southampton University Hospitals, NHS Trust, Tremona Road, Southampton, SO16 6YD, UK.
2 University of Southampton, University Road, Southampton, SO17 1BJ, UK.
3 Department of Engineering, University of Cambridge, Trumpington Street, Cambridge, CB2 1PZ, UK.

Correspondence should be sent to Mr B. J. R. F. Bolland; e-mail: bbolland{at}btinternet.com

The complications of impaction bone grafting in revision hip replacement includes fracture of the femur and subsidence of the prosthesis. In this in vitro study we aimed to investigate whether the use of vibration, combined with a perforated tamp during the compaction of morsellised allograft would reduce peak loads and hoop strains in the femur as a surrogate marker of the risk of fracture and whether it would also improve graft compaction and prosthetic stability.

We found that the peak loads and hoop strains transmitted to the femoral cortex during graft compaction and subsidence of the stem in subsequent mechanical testing were reduced. This innovative technique has the potential to reduce the risk of intra-operative fracture and to improve graft compaction and therefore prosthetic stability.






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Registered charity no: 209299     Print ISSN: 0301-620X
Hip, Knee, Trauma, Upper limb, Foot & Ankle, Paediatrics, Oncology, Spine, Arthroplasty, General