Keun Bae Lee

doi:10.12671/jkfs.2008.21.3.261

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Review Article from Symposium
Basic Principle of the Locking Compression Plate: Keun Bae Lee, M.D.; Journal of the Korean Fracture Society 2008;21(3):261-265.
DOI: https://doi.org/10.12671/jkfs.2008.21.3.261
Published online: July 31, 2008

Department of Orthopedic Surgery, Chonnam National University Hospital, Gwangju, Korea.

Address reprint requests to: Keun-Bae Lee, M.D. Department of Orthopedic Surgery, Chonnam National University Hospital, 8, Hak-dong, Dong-gu, Gwangju 501-757, Korea. Tel: 82-62-227-1640, Fax: 82-62-225-7794, kbleeos@chonnam.ac.kr

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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REFERENCES

REFERENCES

1. Aguila AZ, Manos JM, Orlansky AS, Todhunter RJ, Trotter EJ, Van der Meulen MC. In vitro biomechanical comparison of limited contat dynamic compression plate and locking compression plate. Vet Comp Orthop Traumatol, 2005;18:220-226.Article
2. Ahmad M, Nanda R, Bajwa AS, Candal-Couto J, Green S, Hui AC. Biomechanical testing of the locking compression plate: when does the distance between bone and implant significantly reduce construct stability? Injury, 2007;38:358-364.Article
3. Chang SA, Ahn HS, Byun YS, Kim JH, Bang HH, Kwon DY. Minimally invasive plate osteosynthesis in unstable fractures of the distal tibia. J Korean Fract Soc, 2005;18:155-159.
4. Collinge CA, Sanders RW. Percutaneous plating in the lower extremity. J Am Acad Orthop Surg, 2000;8:211-216.Article
5. Frigg R. Development of the locking compression plate. Injury, 2003;34:Suppl 2. B6-B10.Article
6. Gautier E, Sommer C. Guidelines for the clinical application of the LCP. Injury, 2003;34:Suppl 2. B63-B76.Article
7. Haidukewych GJ. Innovations in locking plate technology. J Am Acad Orthop Surg, 2004;12:205-212.
8. Niemeyer P, Südkamp NP. Principles and clinical application of the locking compression plate (LCP). Acta Chir Orthop Traumatol Cech, 2006;73:221-228.Article
9. Perren SM. Evolution and rationale of locked internal fixator technology. Introductory remarks. Injury, 2001;32:Suppl 2. B3-B9.
10. Sim JC, Chung NS, Hong KD, Ha SS, Kang JH. Treatment of fractures of the distal radius using locking compression plate. J Korean Fract Soc, 2005;18:100-104.Article
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Fig. 1

Because the plate is not compressed on the bone, the blood supply will be preserved in LCP (A) than LC-DCP (B).

Fig. 2

(A) Conical thread allows a secure fixation of the locking head screw.

(B) Dynamic compression can be achieved by eccentric insertion of standard screw at this hole.

Fig. 3

(A) Once the metaphyseal fragment has been fixed with locking head screws, this portion can be compressed to the shaft with standard screws at compression hole.

(B) Arrangement of the combination holes.

Fig. 4

Plate span ratio and plate screw density in bridge plate. Plate span ratio is the quotient of plate length and overall fracture length. Plate screw density is the quotient formed by the number of screws inserted and number of the plate holes (From Gautier E, Sommer C: Injury 34(Suppl 2), 2003).

Fig. 5

(A) In normal bone, working length of monocortical screw is sufficient enough to withstand rotational displacement.

(B) In osteoporotic bone, working length of monocortical screw is insufficient due to thin cortex and under torque the bone thread soon will wear out and secondary displacement and instability will occur.

(C) In osteoporotic bone the bicortical screw is recommended because of the longer working length leading to a much higher torque resistance (From Gautier E, Sommer C: Injury 34(Suppl 2), 2003).

Figure & Data

REFERENCES

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Basic Principle of the Locking Compression Plate

J Korean Fract Soc. 2008;21(3):261-265. Published online July 31, 2008

DOI: https://doi.org/10.12671/jkfs.2008.21.3.261

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Basic Principle of the Locking Compression Plate

Fig. 1 Because the plate is not compressed on the bone, the blood supply will be preserved in LCP (A) than LC-DCP (B).

Fig. 2 (A) Conical thread allows a secure fixation of the locking head screw. (B) Dynamic compression can be achieved by eccentric insertion of standard screw at this hole.

Fig. 3 (A) Once the metaphyseal fragment has been fixed with locking head screws, this portion can be compressed to the shaft with standard screws at compression hole. (B) Arrangement of the combination holes.

Fig. 4 Plate span ratio and plate screw density in bridge plate. Plate span ratio is the quotient of plate length and overall fracture length. Plate screw density is the quotient formed by the number of screws inserted and number of the plate holes (From Gautier E, Sommer C: Injury 34(Suppl 2), 2003).

Fig. 5 (A) In normal bone, working length of monocortical screw is sufficient enough to withstand rotational displacement. (B) In osteoporotic bone, working length of monocortical screw is insufficient due to thin cortex and under torque the bone thread soon will wear out and secondary displacement and instability will occur. (C) In osteoporotic bone the bicortical screw is recommended because of the longer working length leading to a much higher torque resistance (From Gautier E, Sommer C: Injury 34(Suppl 2), 2003).