Relevant bibliographies by topics / Locking Compression Plate (LCP)

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Academic literature on the topic 'Locking Compression Plate (LCP)'

Author: Grafiati
Published: 5 June 2025
Last updated: 9 July 2025

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Journal articles on the topic "Locking Compression Plate (LCP)"

1

Lanz, O., R. McLaughlin, S. Elder, S. Werre, and D. Filipowicz. "A biomechanical comparison of 3.5 locking compression plate fixation to 3.5 limited contact dynamic compression plate fixation in a canine cadaveric distal humeral metaphyseal gap model." Veterinary and Comparative Orthopaedics and Traumatology 22, no. 04 (2009): 1–8. http://dx.doi.org/10.3415/vcot-08-05-0042.

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Summary3.5 locking compression plate (LCP) fixation was compared to 3.5 limited contact dynamic compression plate (LC-DCP) fixation in a canine cadaveric, distal humeral metaphyseal gap model. Thirty paired humeri from adult, large breed dogs were separated into equal groups based on testing: static compression, cyclic compression, and cyclic torsion. Humeral constructs stabilized with LCP were significantly stiffer than those plated with LCDCP when loaded in static axial compression (P = 0.0004). When cyclically loaded in axial compression, the LCP constructs were significantly less stiff than the LC-DCP constructs (P = 0.0029). Constructs plated with LCP were significantly less resistant to torsion over 500 cycles than those plated with LC-DCP (P<0.0001). The increased stiffness of LCP constructs in monotonic loading compared to constructs stabilised with non-locking plates may be attributed to the stability afforded by the plate-screw interface of locking plates. The LCP constructs demonstrated less stiffness in dynamic testing in this model, likely due to plate-bone offset secondary to non-anatomic contouring and occasional incomplete seating of the locking screws when using the torque-limiting screw driver. Resolution of these aspects of LCP application may help improve the stiffness of fixation in fractures modeled by the experimental set-up of this investigation.
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Manos, J. M., A. S. Orlansky, R. J. Todhunter, E. J. Trotter, M. C. H. van der Meulen, and A. Z. Aguila. "In vitro biomechanical comparison of limited contact dynamic compression plate and locking compression plate." Veterinary and Comparative Orthopaedics and Traumatology 18, no. 04 (2005): 220–26. http://dx.doi.org/10.1055/s-0038-1632958.

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SummaryThe locking compression plate (LCP) supports biological osteosynthesis by functioning as an internal fixator, rather than as a full or limited contact bone plate which must be adequately contoured and affixed directly to the bone for stable internal fixation of the fracture. In order to help justify the use of the LCP in our veterinary patients, in vitro biomechanical testing was performed comparing the LCP to the conventional limited contact dynamic compression plate (LC-DCP) in canine femurs. We hypothesized that the LCP construct would be at least as stiff under bending and torsional loads as the LC-DCP. The LCP and LC-DCP were applied over a 20-mm osteotomy gap to contralateral bones within each pair of 14 femora. Non-destructive four-point bending and torsion, and cyclical testing in torsion were performed. The constructs were then loaded to failure in torsion. In medial-lateral and lateral-medial structural bending, significant differences were not found between the LCP and LC-DCP, however, at the gap, the LCP construct was stiffer than the LC-DCP in lateral-medial bending. Significant differences in behaviour over time were not noted between the plate designs during cyclical testing. When loading the constructs to failure in internal rotation, the LC-DCP failed at a significantly lower twist angle (P = .0024) than the LCP. Based on the similar performance with loading, the locking compression plate is a good alternative implant for unstable diaphyseal femoral fracture repair in dogs.
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Glyde, M., G. Hosgood, R. Day, and T. Pearson. "The effect of intramedullary pin size and monocortical screw configuration on locking compression plate-rod constructs in an in vitro fracture gap model." Veterinary and Comparative Orthopaedics and Traumatology 28, no. 02 (2015): 95–103. http://dx.doi.org/10.3415/vcot-14-06-0093.

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SummaryObjective: To investigate the effect of intramedullary pin size in combination with various monocortical screw configurations on locking compression plate-rod constructs.Methods: A synthetic bone model with a 40 mm fracture gap was used. Locking compression plates with monocortical locking screws were tested with no pin (LCP-Mono) and intramedullary pins of 20% (LCPR-20), 30% (LCPR-30) and 40% (LCPR-40) of intramedullary diameter. Locking compression plates with bicortical screws (LCP-Bi) were also tested. Screw configurations with two or three screws per fragment modelled long (8-hole), intermediate (6-hole), and short (4-hole) plate working lengths. Responses to axial compression, biplanar four-point bending and axial load-to-failure were recorded.Results: LCP-Bi were not significantly different from LCP-Mono control for any of the outcome variables. In bending, LCPR-20 were not significantly different from LCP-Bi and LCP-Mono. The LCPR-30 were stiffer than LCPR-20 and the controls. The LCPR-40 constructs were stiffer than all other constructs. The addition of an intramedullary pin of any size provided a significant increase in axial stiffness and load to failure. This effect was incremental with increasing intramedullary pin diameter. As plate working length decreased there was a significant increase in stiffness across all constructs.Clinical significance: A pin of any size increases resistance to axial loads whereas a pin of at least 30% intramedullary diameter is required to increase bending stiffness. Short plate working lengths provide maximum stiffness. However, the overwhelming effect of intramedullary pin size obviates the effect of changing working length on construct stiffness.
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SHASHIKANT, CHIMKODE, D. DILIPKUMAR, and MANJUNATH PATIL. "Evaluation of polyaxial locking plate system and locking compression plate for tibial fracture repair in goats." Indian Journal of Animal Sciences 94, no. 3 (2024): 220–25. http://dx.doi.org/10.56093/ijans.v94i3.147187.

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The present study was conducted to evaluate polyaxial locking plate system (PAX) and locking compression plate (LCP) in twelve tibial fracture of goats. The cases were divided into two groups, viz. group I and group II having six goats in each. Group I and II treated with Polyaxial locking plate system (PAX) and Locking compression plate (LCP), respectively. The two techniques were evaluated on the basis of clinical and radiological changes observed on pre-operative day and at post-operative days 0, 15, 30 and 60. All the animals showed slight to moderate weight bearing from 7th to 15th post-operative day and moderate to good weight bearing by 30th post operative day. Good to excellent weight bearing was achieved by 60th post-operative day. Functional weight bearing was observed in all the groups by day 60. Radiological evaluation revealed that fracture healing in all the groups was through primary callus formation. Initiation of periosteal callus was noticed on day 15 in all the groups. Apparent bridging of the fracture site was noticed in all the groups on day 30. Cortico-medullary union was established on day 60. The complete union and initiation of remodelling of fracture was observed to be earlier in group II, compared to group I. Both Polyaxial Locking plate system and locking compression plates had sufficient strength to provide stability at fracture site but slightly better weight bearing without any complication was observed in animals treated with LCP.
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Mahajan, Neetin P., Mrugank A. Narvekar, Lalkar L. Gadod, and G. S. Prasanna Kumar. "Comminuted olecranon fractures: locking compression plate fixation verses conventional plate fixation." International Journal of Research in Orthopaedics 7, no. 5 (2021): 1001. http://dx.doi.org/10.18203/issn.2455-4510.intjresorthop20213382.

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<p class="abstract"><strong>Background:</strong> A variable consensus exists on the optimal management strategies for olecranon fractures. Though the mechanical properties of the conventional plates and the locking plates used show no difference, pre-contoured locking plates provide a significant advantage over non-locking plates in unstable fractures. The aim of the study was to compare clinical and radiological outcomes in the management of the comminute olecranon fractures by anatomically pre-contoured locking compression plates and the conventional plates.</p><p class="abstract"><strong>Methods:</strong> The present study was a prospective study of 50 patients with comminuted olecranon fracture, with 25 patients each randomized into two groups, those that underwent fixation of the fracture using a pre-contoured locking compression plate (group LCP) and those fixed using a conventional plate (3.5 mm reconstruction plate) (group CP). Patients were followed up to 1 year with functional outcome assessed at each follow-up with Mayo elbow performance score.<strong></strong></p><p class="abstract"><strong>Results:</strong> The mean MEPS (LCP vs CP) at 1.5 (47 vs. 43.4) and 3 (67.4 vs 61.6) months follow up showed a statistically significant difference between the two groups, but the difference was not significant at 6 (86.4 vs 85.6) and 12 (88.4 vs 87) months. The time to union (4.3 months vs 5.0 months) was not significantly different between the groups. There were 11 complications in group LCP and 12 complications in group CP.</p><p class="abstract"><strong>Conclusions:</strong> In the present study, we suggest that the use of a pre-contoured locking compression plate provides better outcomes at earlier periods as compared to the conventional plate; thus, returning the patient to normal function at the earliest.</p>
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Moens, Noel, John Runciman, Tom Gibson, and Gwyneth Watrous. "Biomechanical Properties of the 1.5 mm Locking Compression Plate: Comparison with the 1.5 and 2.0 mm Straight Plates in Compression and Torsion." Veterinary and Comparative Orthopaedics and Traumatology 31, no. 06 (2018): 438–44. http://dx.doi.org/10.1055/s-0038-1668084.

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Objectives The purpose was to compare the biomechanical properties of a 1.5 mm locking compression plate (1.5 LCP) to the 1.5 mm straight plate (1.5 P), 1.5 mm straight plate stacked (1.5 PSt) and 2.0 mm straight plate (2.0 P) in compression and torsion. We hypothesized that biomechanical properties of the 1.5 LCP would be equivalent to properties of the 1.5 P and would represent an alternative for the treatment of radial fractures in miniature breed dogs in which those plates would be used. Materials and Methods A 1 mm fracture gap model was created with a bone surrogate stabilized with a six-hole plate. Sixteen constructs were built for each of the four plate configurations. Eight constructs from each group were tested in compression to failure and eight constructs were tested in torsion to failure. Results In compression testing, the 1.5 LCP was stiffer than the 1.5 P, and had similar stiffness than the 1.5 PSt and the 2.0 P. The load at yield of the 1.5 LCP was slightly lower than the 1.5 P. In torsion, the 1.5 LCP and 1.5 P had similar stiffness, but 1.5 LCP was slightly stronger than 1.5 P. The 1.5 PSt and 2.0 P were overall superior to the 1.5 LCP but only marginally so for the 1.5 PSt. Clinical Relevance The 1.5 LCP can be considered biomechanically equivalent to the 1.5 P under the present experimental conditions. The use of the 1.5 LCP can be considered as an option for radial fracture repair in dogs in which a 1.5 P would have otherwise been used. The use of a locking plate to improve overall success rate, in these fractures, remains to be confirmed clinically.
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Bird, Guy, Mark Glyde, Giselle Hosgood, Alex Hayes, and Rob Day. "Effect of Plate Type and Working Length on a Synthetic Compressed Juxta-Articular Fracture Model." VCOT Open 03, no. 02 (2020): e119-e128. http://dx.doi.org/10.1055/s-0040-1716722.

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Abstract Objective This investigation compared the biomechanical properties of a 2.0 mm locking compression notched head T-plate (NHTP) and 2.0 mm straight locking compression plate (LCP), in a compressed, short, juxta-articular fragment fracture model. Methods Two different screw configurations were compared for the NHTP and LCP, modelling short (configuration 1) and long working length (configuration 2). Constructs were tested in compression, perpendicular and tension four-point bending and torsion. Plate surface strain was measured at 12 regions of interest using three-dimensional digital image correlation. Stiffness and strain were compared. Results The LCP was stiffer than the NHTP in all three planes of bending (p < 0.05). The NHTP was stiffer than the LCP in torsion (p < 0.05). The NHTP had greater strain than the LCP during compression bending and torsion (p < 0.0005). The short working length NHTP was stiffer in all three planes of bending and in torsion (p < 0.05) than the longer working length. The short working length LCP was stiffer in compression bending and in torsion (p < 0.05) than the longer working length. The long working length showed greater strain than the short working length at multiple regions of interest. Conclusion In this experimental model of a compressed transverse fracture with a juxta-articular 9 mm fragment, a 2.0 mm LCP with two hybrid screws in the short fragment was stiffer than a 2.0 mm NHTP with three locking screws in the short fragment in three planes of bending but not torsion. Extending the working length of each construct reduced construct stiffness and increased plate strain.
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Corr, S. A., J. Grierson, G. Arthurs, and N. Woodbridge. "A retrospective study of tibial plateau translation following tibial plateau levelling osteotomy stabilisation using three different plate types." Veterinary and Comparative Orthopaedics and Traumatology 24, no. 06 (2011): 445–49. http://dx.doi.org/10.3415/vcot-10-06-0090.

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SummaryObjective:To retrospectively evaluate mediolateral translation of the proximal tibial segment (tibial plateau) after tibial plateau levelling osteotomy (TPLO), stabilised with three types of plate.Method: Pre- and postoperative radiographs of 79 dogs that had TPLO surgery using three different types of plates were reviewed. Two plate types incorporated non-locking screws: Slocum (22 cases) and Orthomed Delta (33 cases) plates. The third plate type incorporated locking screws: Synthes TPLO Locking Compression Plate (LCP) (24 cases). The radio-graphs were viewed by three Diplomate surgeons who were blinded to the type of implant used. Medial or lateral translation of the proximal tibial plateau relative to the tibial diaphysis was assessed and measured at the lateral tibial cortex at the osteotomy site.Results: Mean lateral translation of the tibial plateau was significantly greater when using the Synthes TPLO LCP with locking screws (+2.1 mm) compared to the non-locking Slocum (+0.4 mm) or Orthomed Delta (0.0 mm) plates.Clinical significance: The use of the Synthes TPLO LCP will maintain a malalignment of the tibial plateau. Accurate alignment of the tibial plateau must be ensured prior to application of the Synthes TPLO LCP.
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Suaimi, Muhammad Khairul Asyraf, Amir Mustakim Ab Rashid, Ahmad Kafrawi Nasution, Gan Hong Seng, Mohammed Rafiq Abdul Kadir, and Muhammad Hanif Ramlee. "BIOMECHANICAL EVALUATION OF LOCKING COMPRESSION PLATE (LCP) VERSUS DYNAMIC COMPRESSION PLATE (DCP): A FINITE ELEMENT ANALYSIS." Jurnal Teknologi 84, no. 3 (2022): 125–31. http://dx.doi.org/10.11113/jurnalteknologi.v84.16687.

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Internal fixators are commonly used to treat long bone fractures, its aim is to provide interfragmentary compression, allow limited micromotion and provide stability to the bone for ambulation. However, complications such as non-unions, malunions and broken implant, can occur due to the complexity of mechanical force acting on the bone-plate models. Therefore, this study is proposed to investigate the biomechanical characterization of plate design on a tibia bone using finite element method. Two different designs; 1) locking compression plate (LCP) and dynamic compression plate (DCP) were simulated by using Marc.Mentat software. From the findings, the LCP have lower peak von Mises stress (VMS) distribution of 160 MPa compared to DCP with VMS value of 232 MPa. Surprisingly, the VMS of DCP plate system have exceed the yield strength of stainless steel (215 MPa) which translate to higher risk of failures. Moreover, the DCP plate system shows 50% lower stability compared to the LCP plate system, which has the peak displacement at 0.98 mm compared to the DCP bone at 1.53 mm. In conclusion, the LCP provides better stability and stress distribution up to 45% differences as compared to the DCP.
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Suaimi, Muhammad Khairul Asyraf, Amir Mustakim Ab Rashid, Ahmad Kafrawi Nasution, Gan Hong Seng, Mohammed Rafiq Abdul Kadir, and Muhammad Hanif Ramlee. "BIOMECHANICAL EVALUATION OF LOCKING COMPRESSION PLATE (LCP) VERSUS DYNAMIC COMPRESSION PLATE (DCP): A FINITE ELEMENT ANALYSIS." Jurnal Teknologi 84, no. 3 (2022): 125–31. http://dx.doi.org/10.11113/jurnalteknologi.v84.16687.

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Internal fixators are commonly used to treat long bone fractures, its aim is to provide interfragmentary compression, allow limited micromotion and provide stability to the bone for ambulation. However, complications such as non-unions, malunions and broken implant, can occur due to the complexity of mechanical force acting on the bone-plate models. Therefore, this study is proposed to investigate the biomechanical characterization of plate design on a tibia bone using finite element method. Two different designs; 1) locking compression plate (LCP) and dynamic compression plate (DCP) were simulated by using Marc.Mentat software. From the findings, the LCP have lower peak von Mises stress (VMS) distribution of 160 MPa compared to DCP with VMS value of 232 MPa. Surprisingly, the VMS of DCP plate system have exceed the yield strength of stainless steel (215 MPa) which translate to higher risk of failures. Moreover, the DCP plate system shows 50% lower stability compared to the LCP plate system, which has the peak displacement at 0.98 mm compared to the DCP bone at 1.53 mm. In conclusion, the LCP provides better stability and stress distribution up to 45% differences as compared to the DCP.
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Dissertations / Theses on the topic "Locking Compression Plate (LCP)"

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Filipowicz, Dean. "A Biomechanical Comparison of 3.5 Locking Compression Plate Fixation to 3.5 Limited Contact Dynamic Compression Plate Fixation in a Canine Cadaveric Distal Humeral Metaphyseal Gap Model." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/33558.

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Objective- To compare the biomechanical properties of 3.5 locking compression plate (LCP) fixation to 3.5 limited contact dynamic compression plate (LC-DCP) fixation in a canine cadaveric, distal humeral metaphyseal gap model in static axial compression and cyclic axial compression and torsion. Study Design- Biomechanical in vitro study. Sample Population- 30 paired humeri from adult, medium to large breed dogs. Methods- Testing was performed monotonically to failure in axial compression on ten pairs of humeri, cyclically in axial compression for 10,000 cycles on ten pairs and cyclically in torsion for 500 cycles on the last ten pairs. Results- Humeral constructs stabilized with LCPs were significantly stiffer than those plated with LC-DCPs when loaded in axial compression (P=0.0004). When cyclically loaded in axial compression over 10,000 cycles, the LC-DCP constructs were significantly stiffer than those constructs stabilized with LCPs (P=0.0029). Constructs plated with LC-DCPs were significantly more resistant to torsion over 500 cycles than those plated with LCPs (P<0.0001), though no difference was detected during the first 280 cycles. Conclusions- The increased stiffness of LCP constructs in monotonic loading compared to constructs stabilized with non-locking plates may be attributed to the stability afforded by the plate-screw interface of locking plates. The LCP constructs demonstrated less stiffness in dynamic testing in this model, likely due to plate-bone offset secondary to non-anatomic contouring and occasional incomplete seating of the locking screws when using the torque-limiting screw driver. Clinical Relevance- LCPs yield less stiff fixation under dynamic loading than conventional LC-DCPs when applied to severely comminuted, metaphyseal fractures. Improving anatomical contouring of the plate and insuring complete screw insertion into the locking plate hole may improve stiffness when using LCPs in comminuted fractures.<br>Master of Science
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Bird, Guy Peter. "Biomechanical comparison of a notched head locking t-plate and a straight locking compression plate in a juxta-articular fracture model." Thesis, Bird, Guy Peter (2022) Biomechanical comparison of a notched head locking t-plate and a straight locking compression plate in a juxta-articular fracture model. Masters by Research thesis, Murdoch University, 2022. https://researchrepository.murdoch.edu.au/id/eprint/63893/.

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Objective: To investigate the biomechanical properties of a 2.0 mm notched head T-plate (NHTP) and 8-hole 2.0 mm straight locking compression plate (LCP), in a simple transverse model with a short distal fragment, applied with various screw configurations that alter the working length of the plate. Methods: Two different screw configurations were compared for the NHTP and LCP, modelling short (configuration 1) and long working length (configuration 2) across two different distal fragments lengths (13 mm and 9 mm). Constructs were tested in three planes of non-destructive four point bending and torsion. Construct stiffness and plate strain was compared between screw configurations within and between each plate. Results: In the first investigation (13 mm fragment), the LCP was stiffer than the NHTP in all three planes of bending and in torsion (P<0.05). The NHTP had greater strain during compression bending and torsion at all ROI (P<0.0005). In the second investigation (9 mm fragment), the LCP was significantly stiffer than the NHTP in all three planes of bending (P<0.05) for both screw configurations. The NHTP was stiffer than the LCP in torsion (P<0.05) for both screw configurations. The NHTP had greater strain than the LCP during compression bending at three ROI (P<0.0005). The LCP had greater strain than the NHTP during torsion at three ROI (P<0.0005). In both investigations the short working length was stiffer in all three planes of bending and in torsion (P<0.05) than the longer working length for both plates. The long working length produced greater plate strain than the short working length at most ROI. Conclusions: The LCP with two screws in a short fragment, was significantly stiffer and had lower plate strain, in most planes of testing, than NHTP with three locking screws in the short fragment. Extending the working length of each construct by omitting locking screws in the long fragment adjacent to the fracture line significantly reduced construct stiffness and increased plate strain.
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Desai, Krishna P. "A Biomechanical Comparison of Locking Compression Plate Constructs with Plugs/Screws in Osteoporotic Bone Model." Wright State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=wright1271706065.

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Vits, Emanuel Benjamin [Verfasser], and Tim [Akademischer Betreuer] Pohlemann. "Biomechanische Vergleichsstudie der Locking Compression Plate unter Verwendung von Locking Head Screws (LHS) und Dynamic Locking Screws (DLS) mittels Radiostereometrischer Analyse (RSA) / Emanuel Benjamin Vits ; Betreuer: Tim Pohlemann." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2016. http://d-nb.info/1121581404/34.

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Muro, Noelle Marie. "Mechanical Comparison of a Type II External Skeletal Fixator and Locking Compression Plate in a Fracture Gap Model." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/86276.

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The purpose of this study was to compare the stiffness of a Type II external skeletal fixator (ESF) to a 3.5 mm locking compression plate (LCP) in axial compression, mediolateral, and craniocaudal bending in a fracture gap model. The hypothesis was that the Type II ESF would demonstrate comparable stiffness to the LCP. A bone simulant consisting of short fiber reinforced epoxy cylinders and a 40 mm fracture gap was used. The LCP construct consisted of a 12 hole 3.5 mm plate with three 3.5 mm bicortical locking screws per fragment. The Type II ESF construct consisted of 3 proximal full fixation pins (Centerface®) per fragment in the mediolateral plane, and 2 carbon fiber connecting rods. Five constructs of each were tested in non-destructive mediolateral and craniocaudal bending, and axial compression. Stiffness was determined from the slope of the elastic portion of force-displacement curves. A one-way ANOVA and a Tukey-Kramer multiple comparisons test were performed, with significance defined as p < 0.05. In mediolateral bending, the stiffness of the Type II ESF (mean ± standard deviation; 1584.2 N/mm ± 202.8 N/mm) was significantly greater than that of the LCP (110.0 N/mm ± 13.4 N/mm). In axial compression, the stiffness of the Type II ESF (679.1 N/mm ± 20.1 N/mm) was significantly greater than that of the LCP (221.2 N/mm ± 19.1 N/mm). There was no significant difference between the constructs in craniocaudal bending. This information can aid in decision-making for fracture fixation, although ideal stiffness for healing remains unknown.<br>Master of Science
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Pearson, Timothy. "The effect of intramedullary pin size and monocortical screw configuration on locking compression plate-rod constructs in a in vitro fracture gap model." Thesis, Pearson, Timothy (2016) The effect of intramedullary pin size and monocortical screw configuration on locking compression plate-rod constructs in a in vitro fracture gap model. Other thesis, Murdoch University, 2016. https://researchrepository.murdoch.edu.au/id/eprint/31249/.

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Objective: To investigate the effect of intramedullary (IM) pin size in combination with various monocortical screw configurations on construct stiffness and strength as well as plate stain in locking compression plate-rod (LCPR) constructs. Methods: A synthetic bone model with a 40mm fracture gap was used. LCPs with monocortical locking screws were tested with no pin (LCPMono) and IM pins of 20% (LCPR20), 30% (LCPR30) and 40% (LCPR40) of IM diameter. LCPs with bicortical screws (LCPBi) were also tested in the first paper. The first paper used screw configurations with 2 or 3 screws per fragment modelling long (8 hole), intermediate (6 hole) and short (4 hole) plate working lengths. Responses to axial compression, biplanar four point bending and axial load to failure were recorded. The second paper used 2 screws per fragment to model a long (8 hole) and short (4 hole) plate working length and strain responses to axial compression were recorded at 6 regions of the plate via 3D digital image correlation. Results: In the first paper, LCPBi were not significantly different from LCPMono control for any of the outcome variables measured. In bending, LCPR20 were not significantly different from LCPBi and LCPMono. LCPR30 were stiffer than LCPR20 and the controls. LCPR40 constructs were stiffer than all other constructs. The addition of an IM pin of any size provided a significant increase in axial stiffness and load to failure. This effect was incremental with increasing IM pin diameter. As plate working length decreased there was a significant increase in stiffness across all constructs. The addition of an IM pin of any size provided a significant decrease in plate strain. For the long working length, LCPR30 and LCPR40 had significantly lower strain than the LCPR20 and plate strain was significantly higher adjacent to the screw closest to the fracture site. For the short working length, there was no significant difference in strain across any LCPR constructs or at any region of the plate. Plate strain was significantly lower for the short working length compared to the long working length for LCPMono and LCPR20 but not LCPR30 and LCPR40. Conclusions: A pin of any size increases resistance to axial loads whereas a pin of at least 30% IM diameter is required to increase bending stiffness. Short plate working lengths provide maximum stiffness. However, the overwhelming effect of IM pin size obviates the effect of changing plate working length on construct stiffness. The increase in plate strain encountered with a long working length can be overcome by the use of a pin of 30-40% IM diameter. Where placement of a large diameter IM pin is not possible, screws should be placed as close to the fracture gap as possible to minimize plate strain and distribute it more evenly over the plate. Both studies showed a consistent effect of increasing IM pin diameter and using a short plate working length. However, a significant interaction effect between these variables was only detected on plate strain with the IM pin largely negating the effect of plate working length on construct stiffness.
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Kunz, Benedict B. [Verfasser]. "Die Versorgung kindlicher und jugendlicher Schaftfrakturen der unteren Extremität : eine retrospektive Studie zum Vergleich der elastisch stabilen intramedullären Marknagelung gegenüber der Locking Compression Plate / Benedict B. Kunz." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2017. http://d-nb.info/1133493106/34.

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HSIAO, TE-CHING, and 蕭德慶. "Finite Element Analysis and Optimal Design of Locking Compression Plate." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/24670414612545975350.

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博士<br>國立高雄應用科技大學<br>機械工程系<br>105<br>The mechanical environment of fracture site is a high effect factor in the restoration of the original structural integrity and function. The aim of this study is to investigate the mechanical properties of locking compression plate with finite element analysis software in the process of human femoral shaft fractures under the condition of loading. Taguchi method is used to explore the biomechanical effects of different factors on fractures, and find out significant factors and optimal configuration to reduce deformation of system. Then use response surface methodology (RSM) and genetic algorithm (GA) for global search and then establish mathematical equations and model fitting, then find out the best convergence of factors. The result is expected to provide orthopedist with a better understanding of the biomechanical properties of the bone plates and screws system, as a reference of choice bone plate and treatment in clinical, reducing the situation of fixed failure. The results show that the optimal configuration is using stainless steel, 4.5mm of plate thickness, 18mm of plate width, 7mm of crew diameter, 8 support of crew, 0mm of interface gap, 0mm of fracture gap and 33mm of crew length, and more significant influences of factors to stability of structures are fracture gap, diameter of crew and support of crew, and the minimum deformation of system from 11.813mm reduce to 11.17mm with optimal configuration. Then by using response surface methodology (RSM) and genetic algorithm (GA) for global search, we can find out smaller deformation is 8.38mm, the decline of deformation is 20.68%.
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HUANG, SIAO-WUN, and 黃筱雯. "Optimal Design of Locking Compression Plate for Femoral Shaft Fracture." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/nmrpm6.

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碩士<br>國立高雄應用科技大學<br>機械工程系<br>106<br>This paper applied Taguchi quality engineering method and Finite Element method of optimal design of locking compression plate for femoral shaft fracture. In the study, SolidWorks was used to build model as follows femoral shaft fracture model, cortex screw model, locking screw model then used ANSYS Workbench to simulate analysis. Through the Taguchi method, we can find out the best combination and significant factors of the locking compression plate, changing the parameters such as type of locking compression plate, the distance of hole of locking compression plate, locking compression plate width, screw amount, screw location, screw length, type of screw and material. As mentioned above, we are capable of exploring their influence on the quality characteristics of significant factors, doing ANOVA in order to find out the contribution among factors such that we can deeply discuss interaction of them. The results of study showed that the screw of best parameters combination should be adopted factors as follows: wide type of locking compression plate, 16mm of locking compression plate width, 17mm width of locking compression plate, quantity 4 of screw, outside of screw location, 44mm of screw length and the type of screw is composite. While the screw material is titanium, stress loading would tend to normal.
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Lai, Chun-Jui, and 賴鈞瑞. "Improving the Risk of Implant Failure in Locking Compression Plate: A Finite Elemenet Study." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/75052201958150172268.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>100<br>Locking compression plate system with its advantages of higher construct stiffness and bone holding power has been widely used to treat femoral shaft fracture. The benefit of locking compression plate would be greatly improved if the minimally invasive plate osteosynthesis (MIPO) technique was applied. In clinical applications, we can still found that the implant failure cause by stress concentration, locking compression plate with a largest number of locking screws has excellent fixation stability. However, the omission of some locking screws can reduce the damage to bone and soft tissues and avoid stress shielding effects. Therefore, some research are try to use Hybrid plate, they hope to combine the advantage of two different types screws. Past studies have discussed the influences of screw position and number on the fixation stability. Unfortunately, the screw position and number of locking compression plate were determined by surgeon’s experience without experimental evidence. The purpose of this study is to compare locking plate and hybrid plate by using Finite Element Analysis, and find out the trend of implant failure and how to avoid it. The commercial 12 holes locking plate and the standardized femur model were used in this study. And use finite element software to evaluate the implant stability and implant strength. To determine the biomechanical characteristics of different screws combination, are the maximum von Mises stress of implant and maximum deformation of femur. The results show that the working length is the most important parameter of implant strength and stability. We also found that implant strength and implant stability are conflict each other, it means when working length goes greater then the implant strength goes up but implant stability goes down. And the result also shows that hybrid plate’s stress is much less than locking plate when we place screws in same position, it because nonlocked screws do not interrupt working length so the stress goes down. In the clinical view, using nonlocked screws near the fracture side can help fracture bone contact, improve callus formation. The results of this study wish to help surgeons to understand the biomechanical characteristics of locking plate and hybrid plate, and also provide evidence to support the use of hybrid plate.
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Book chapters on the topic "Locking Compression Plate (LCP)"

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Dahlberg, Jessica A., and Kenneth A. Bruecker. "The Synthes Locking Compression Plate (LCP) System." In Locking Plates in Veterinary Orthopedics. John Wiley & Sons, Inc., 2018. http://dx.doi.org/10.1002/9781119380139.ch12.

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Leung, Frankie. "Chapter-15 Distal Radial Fractures: Locking Compression Plate (LCP) Fixation." In Mastering Orthopedic Techniques: Intra-articular Fractures. Jaypee Brothers Medical Publishers (P) Ltd, 2013. http://dx.doi.org/10.5005/jp/books/12249_15.

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Leung, Frankie. "Chapter-15 Distal Radial Fractures: Locking Compression Plate (LCP) Fixation." In Mastering Orthopedic Techniques: Intra-articular Fractures. Jaypee Brothers Medical Publishers (P) Ltd, 2013. http://dx.doi.org/10.5005/jp/books/11771_15.

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Dhillon, Mandeep, and Manuj Jain. "Evolution of Implant Use and Rationale for Locking Compression Plates (LCP)." In Fractures of the Calcaneus. Jaypee Brothers Medical Publishers (P) Ltd., 2013. http://dx.doi.org/10.5005/jp/books/11781_9.

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Moffatt, Felicity, Elvin Kulendra, and Richard Meeson. "Repair of Y-T humeral condyle fractures in the dog with locking compression plate (LCP) fixation." In BSAVA Congress Proceedings 2017. British Small Animal Veterinary Association, 2017. http://dx.doi.org/10.22233/9781910443439.74.16.

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Garcia, Javier, Miguel A. Solano, and Russell Yeadon. "Bilateral locking-compression plate fixation for stabilization of canine Y-T humeral fractures." In BSAVA Congress Proceedings 2019. British Small Animal Veterinary Association, 2019. http://dx.doi.org/10.22233/9781910443699.83.11.

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Venzo, Giorgia, and Stephane Libermann. "Thoracoscopic-assisted surgical stabilization using a locking compression plate of pectus excavatum in a Maine Coon." In BSAVA Congress Proceedings 2024. British Small Animal Veterinary Association, 2024. http://dx.doi.org/10.22233/9781913859411.46.35.

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Conference papers on the topic "Locking Compression Plate (LCP)"

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Raja Mohd Aizat Raja Izaham, Mohammed Rafiq Abdul Kadir, and Darhaysham Al-Jefri Muslim. "Screws placement effect on locking compression plate (LCP) for tibial oblique fracture fixation." In 2010 IEEE EMBS Conference on Biomedical Engineering and Sciences (IECBES). IEEE, 2010. http://dx.doi.org/10.1109/iecbes.2010.5742235.

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Huxman, Connor, April Armstrong, Gary Updegrove, Gregory Lewis, and Jared Butler. "Compression Plating of Long Bone Fractures with Flexure-Based Compliant Locking Plates." In 2024 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/dmd2024-1085.

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Abstract A novel flexure-based compliant bone plate is proposed for long bone fracture compression. Locking screws can be used in all screw holes while compression is generated through pretensioning of flexible elements in the plate. Performance differences are characterized for the use of both titanium alloy and stainless steel in the proposed plate. Biomechanical simulations are performed with finite element analysis to determine the fracture surface compression characteristics. The proposed compliant plating technology may offer unique benefits of both locked and compression plating.
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Nelson, B., J. Johnson, D. Koch, et al. "Comparison of Interlocking Nail to Locking Compression Plate Fixation of Critically Sized Ovine Tibial Defects." In Abstracts of the 6th World Veterinary Orthopedic Congress. Georg Thieme Verlag KG, 2022. http://dx.doi.org/10.1055/s-0042-1758261.

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Hsu, Ching-Chi, Chian-Her Lee, and Sung-Ming Hsu. "An optimization study of screw position and number of screws for the fixation stability of a distal femoral locking compression plate using genetic algorithms." In GECCO '18: Genetic and Evolutionary Computation Conference. ACM, 2018. http://dx.doi.org/10.1145/3205651.3205665.

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Mollenhauer, L., B. Schulze Gronover, M. Santos, J. Martinez Lopez, and T. H. Gudehus. "Cervical Vertebral Interbody Fusion (C7-T1) Using Combined Transvertebral Compression Screws and a 4-Hole Locking Compression Plate for Surgical Treatment of Diskospondylitis of C7-T1 Intervertebral Disk Space Diagnosed by CT/Myelogram." In Abstracts of the 50th Annual Conference of the Veterinary Orthopedic Society. Georg Thieme Verlag KG, 2023. http://dx.doi.org/10.1055/s-0043-1775682.

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Paul, Johns, Abdul Salam PM, Rajeev P, Santhosh J. Nalluveettil, and Jothiramalingam A. "Development of INLS 3U Uni-Pod Nano Satellite (CubeSat) Dispenser System for 3U Class Satellites." In AeroCON 2024. SAE International, 2024. http://dx.doi.org/10.4271/2024-26-0458.

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&lt;div class="section abstract"&gt;&lt;div class="htmlview paragraph"&gt;With the present state of the art technology, size and mass of the satellites have come down. This necessitated the need for a low shock separation system that does not have mass attached to the separated satellite. Development of Nano satellites with mass of the order of 1 to 24 kg has become popular among scientific/ academic institutions for carrying out scientific experiments. INLS 3U Uni-Pod System (Nano satellite dispenser system) is a satellite dispensing system designed by ISRO for accommodating four 3U class Nano satellites in a single structure where each satellite is deployed independently by separate actuation commands. INLS stands for ISRO's Nano satellite Launch System. The INLS 3U Uni-Pod separation system successfully flown in ISRO’s Launch Vehicle mission for deployment of three satellites from abroad. CubeSat separation system consists of a structure housing the satellite, Holding and release mechanism (HDRM), rattling arresting mechanism, satellite ejection mechanism and movement arresting/ locking mechanism. The system was designed and developed for accommodating four satellites with a maximum mass of 6.0 kg, meeting the CubeSat Design Specification (CDS). Wire fusing system is used as HDRM. Helical compression spring with pusher plate is used for ejecting the satellite. Mechanism with double torsion spring is used for rattling arresting. The system was tested in ground conditions and in thermo-vacuum environment (-15°C &amp;amp; +60°C) nearly 40 times and found meeting the design specifications. The actuation time, separation time, electrical specifications, separation velocity and rates are designed at par with the internationally available commercial systems. The satellite ejection time is within one second from command. Confirmation of satellite separation is through micro switches and reed switches. The system can be mounted in two configurations, viz rail mounting and back mounting.&lt;/div&gt;&lt;/div&gt;
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