Dynamic compression plate

Dynamic compression plate

A dynamic compression plate (DCP) is a metallic plate used in orthopedics for internal fixation of bone, typically after fractures. As the name implies, it is designed to exert dynamic pressure between the bone fragments to be transfixed. Dynamic compression is achieved either by attaching a tension device to a plate or by using a special dynamic compression plate. However, compression plating with a tension device requires a longer surgical incision to allow insertion of the device, and plating carries the possibility of refracture after the plate is removed. A neutralization plate is used to bridge a comminuted fracture; it also transmits bending or torsional forces from the proximal to the distal fragment. Plates used for buttressing prevent collapse by supporting an area of thin cortex or cancellous bone graft.

When plates are used, atrophy (osteopenia) of the bone beneath the plate may predispose the bone to fracture. After removal of plates, fractures may occur through the screw holes.

Sliding screw plate

The sliding screw plate (dynamic compression screw, dynamic hip screw) may be used to treat intertrochanteric fractures as well as other injuries. This device consists of a lag screw and a side plate with a barrel. The sliding screw telescopes and provides fixation while allowing impaction to occur at the fracture during healing and weight bearing. Among the complications of sliding screw plate fixation are "cutting out" of the screw, penetration of the screw into the joint, bending or breaking of the implant, disengagement of the screw from the barrel, and intrapelvic protrusion of the screw.

See also

References

  1. ↑ Cohn, M. R.; Unnanuntana, A.; Pannu, T. J.; Warner, S. J.; Lane, J. M. (1 January 2017). "7.16 Materials in Fracture Fixation☆". Comprehensive Biomaterials II. Elsevier. pp. 278–297. ISBN 978-0-08-100692-4. Retrieved 29 January 2022.
  2. ↑ Perren, S. M.; Russenberger, M.; Steinemann, S.; Müller, M. E.; Allgöwer, M. (1969). "A dynamic compression plate". Acta Orthopaedica Scandinavica. 40 (sup125): 29–41. doi:10.3109/ort.1969.40.suppl-125.01. PMID 5378127.
  3. ↑ Buckley, Richard E.; Moran, Christopher G.; Apivatthakakul, Theerachai (2017). "3.2.2 Plates". AO Principles of Fracture Management (3rd ed.). Thieme. ISBN 978-3-13-242309-1.
  4. ↑ "Basic principles of plating". AO Surgery Reference. AO Foundation. Retrieved 2026-04-27.
  5. ↑ Uhthoff, H. K.; Dubuc, F. L. (1971). "Bone structure changes in the dog under rigid internal fixation". Clinical Orthopaedics and Related Research. 81: 165–170. doi:10.1097/00003086-197111000-00026. PMID 5133036.
  6. ↑ Brooks, D. B.; Burstein, A. H.; Frankel, V. H. (April 1970). "The biomechanics of torsional fractures. The stress concentration effect of a drill hole". The Journal of Bone and Joint Surgery. American Volume. 52 (3): 507–514. PMID 5425646.
  7. ↑ Deluca, P. A.; Lindsey, R. W.; Ruwe, P. A. (October 1988). "Refracture of bones of the forearm after the removal of compression plates". The Journal of Bone and Joint Surgery. American Volume. 70 (9): 1372–1376. PMID 3182889.
  8. ↑ Jensen, J. S.; Sonne-Holm, S.; Tøndevold, E. (1980). "Unstable trochanteric fractures: a comparative analysis of four methods of internal fixation". Acta Orthopaedica Scandinavica. 51 (6): 949–962. doi:10.3109/17453678008990900. PMID 7211299.
  9. ↑ Baumgaertner, M. R.; Curtin, S. L.; Lindskog, D. M.; Keggi, J. M. (July 1995). "The value of the tip-apex distance in predicting failure of fixation of peritrochanteric fractures of the hip". The Journal of Bone and Joint Surgery. American Volume. 77 (7): 1058–1064. doi:10.2106/00004623-199507000-00012. PMID 7608228.
  10. ↑ Chirodian, N.; Arch, B.; Parker, M. J. (June 2005). "Sliding hip screw fixation of trochanteric hip fractures: outcome of 1024 procedures". Injury. 36 (6): 793–800. doi:10.1016/j.injury.2005.01.017. PMID 15910836.
  11. ↑ Brodell, J. D.; Leve, A. R. (June 1983). "Disengagement and intrapelvic protrusion of the screw from a sliding screw-plate device. A case report". The Journal of Bone and Joint Surgery. American Volume. 65 (5): 697–701. PMID 6853577.