Temporal Changes in Reverse Torque of Locking-Head Screws Used in the Locking Plate in Segmental Tibial Defect in Goat Model

The objective of this study was to evaluate changes in peak reverse torque (PRT) of the locking head screws that occur over time. A locking plate construct, consisting of an 8-hole locking plate and 8 locking screws, was used to stabilize a tibia segmental bone defect in a goat model. PRT was measur...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Remigiusz M. Grzeskowiak [verfasserIn] Rebecca E. Rifkin [verfasserIn] Elizabeth G. Croy [verfasserIn] Richard C. Steiner [verfasserIn] Reza Seddighi [verfasserIn] Pierre-Yves Mulon [verfasserIn] Henry S. Adair [verfasserIn] David E. Anderson [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	animal models segmental bone defect bone healing locking screws orthopedics biomechanics

Übergeordnetes Werk:	In: Frontiers in Surgery - Frontiers Media S.A., 2014, 8(2021)
Übergeordnetes Werk:	volume:8 ; year:2021

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3389/fsurg.2021.637268

Katalog-ID:	DOAJ062414178

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allfields	10.3389/fsurg.2021.637268 doi (DE-627)DOAJ062414178 (DE-599)DOAJbc9083661d874d3cbef316f70f058306 DE-627 ger DE-627 rakwb eng RD1-811 Remigiusz M. Grzeskowiak verfasserin aut Temporal Changes in Reverse Torque of Locking-Head Screws Used in the Locking Plate in Segmental Tibial Defect in Goat Model 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The objective of this study was to evaluate changes in peak reverse torque (PRT) of the locking head screws that occur over time. A locking plate construct, consisting of an 8-hole locking plate and 8 locking screws, was used to stabilize a tibia segmental bone defect in a goat model. PRT was measured after periods of 3, 6, 9, and 12 months of ambulation. PRT for each screw was determined during plate removal. Statistical analysis revealed that after 6 months of loading, locking screws placed in position no. 4 had significantly less PRT as compared with screws placed in position no. 5 (p < 0.05). There were no statistically significant differences in PRT between groups as a factor of time (p > 0.05). Intracortical fractures occurred during the placement of 151 out of 664 screws (22.7%) and were significantly more common in the screw positions closest to the osteotomy (positions 4 and 5, p < 0.05). Periosteal and endosteal bone reactions and locking screw backout occurred significantly more often in the proximal bone segments (p < 0.05). Screw backout significantly, negatively influenced the PRT of the screws placed in positions no. 3, 4, and 5 (p < 0.05). The locking plate-screw constructs provided stable fixation of 2.5-cm segmental tibia defects in a goat animal model for up to 12 months. animal models segmental bone defect bone healing locking screws orthopedics biomechanics Surgery Rebecca E. Rifkin verfasserin aut Elizabeth G. Croy verfasserin aut Richard C. Steiner verfasserin aut Reza Seddighi verfasserin aut Pierre-Yves Mulon verfasserin aut Henry S. Adair verfasserin aut David E. Anderson verfasserin aut In Frontiers in Surgery Frontiers Media S.A., 2014 8(2021) (DE-627)788288954 (DE-600)2773823-1 2296875X nnns volume:8 year:2021 https://doi.org/10.3389/fsurg.2021.637268 kostenfrei https://doaj.org/article/bc9083661d874d3cbef316f70f058306 kostenfrei https://www.frontiersin.org/articles/10.3389/fsurg.2021.637268/full kostenfrei https://doaj.org/toc/2296-875X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_2446 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2021
spelling	10.3389/fsurg.2021.637268 doi (DE-627)DOAJ062414178 (DE-599)DOAJbc9083661d874d3cbef316f70f058306 DE-627 ger DE-627 rakwb eng RD1-811 Remigiusz M. Grzeskowiak verfasserin aut Temporal Changes in Reverse Torque of Locking-Head Screws Used in the Locking Plate in Segmental Tibial Defect in Goat Model 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The objective of this study was to evaluate changes in peak reverse torque (PRT) of the locking head screws that occur over time. A locking plate construct, consisting of an 8-hole locking plate and 8 locking screws, was used to stabilize a tibia segmental bone defect in a goat model. PRT was measured after periods of 3, 6, 9, and 12 months of ambulation. PRT for each screw was determined during plate removal. Statistical analysis revealed that after 6 months of loading, locking screws placed in position no. 4 had significantly less PRT as compared with screws placed in position no. 5 (p < 0.05). There were no statistically significant differences in PRT between groups as a factor of time (p > 0.05). Intracortical fractures occurred during the placement of 151 out of 664 screws (22.7%) and were significantly more common in the screw positions closest to the osteotomy (positions 4 and 5, p < 0.05). Periosteal and endosteal bone reactions and locking screw backout occurred significantly more often in the proximal bone segments (p < 0.05). Screw backout significantly, negatively influenced the PRT of the screws placed in positions no. 3, 4, and 5 (p < 0.05). The locking plate-screw constructs provided stable fixation of 2.5-cm segmental tibia defects in a goat animal model for up to 12 months. animal models segmental bone defect bone healing locking screws orthopedics biomechanics Surgery Rebecca E. Rifkin verfasserin aut Elizabeth G. Croy verfasserin aut Richard C. Steiner verfasserin aut Reza Seddighi verfasserin aut Pierre-Yves Mulon verfasserin aut Henry S. Adair verfasserin aut David E. Anderson verfasserin aut In Frontiers in Surgery Frontiers Media S.A., 2014 8(2021) (DE-627)788288954 (DE-600)2773823-1 2296875X nnns volume:8 year:2021 https://doi.org/10.3389/fsurg.2021.637268 kostenfrei https://doaj.org/article/bc9083661d874d3cbef316f70f058306 kostenfrei https://www.frontiersin.org/articles/10.3389/fsurg.2021.637268/full kostenfrei https://doaj.org/toc/2296-875X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_2446 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2021
allfields_unstemmed	10.3389/fsurg.2021.637268 doi (DE-627)DOAJ062414178 (DE-599)DOAJbc9083661d874d3cbef316f70f058306 DE-627 ger DE-627 rakwb eng RD1-811 Remigiusz M. Grzeskowiak verfasserin aut Temporal Changes in Reverse Torque of Locking-Head Screws Used in the Locking Plate in Segmental Tibial Defect in Goat Model 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The objective of this study was to evaluate changes in peak reverse torque (PRT) of the locking head screws that occur over time. A locking plate construct, consisting of an 8-hole locking plate and 8 locking screws, was used to stabilize a tibia segmental bone defect in a goat model. PRT was measured after periods of 3, 6, 9, and 12 months of ambulation. PRT for each screw was determined during plate removal. Statistical analysis revealed that after 6 months of loading, locking screws placed in position no. 4 had significantly less PRT as compared with screws placed in position no. 5 (p < 0.05). There were no statistically significant differences in PRT between groups as a factor of time (p > 0.05). Intracortical fractures occurred during the placement of 151 out of 664 screws (22.7%) and were significantly more common in the screw positions closest to the osteotomy (positions 4 and 5, p < 0.05). Periosteal and endosteal bone reactions and locking screw backout occurred significantly more often in the proximal bone segments (p < 0.05). Screw backout significantly, negatively influenced the PRT of the screws placed in positions no. 3, 4, and 5 (p < 0.05). The locking plate-screw constructs provided stable fixation of 2.5-cm segmental tibia defects in a goat animal model for up to 12 months. animal models segmental bone defect bone healing locking screws orthopedics biomechanics Surgery Rebecca E. Rifkin verfasserin aut Elizabeth G. Croy verfasserin aut Richard C. Steiner verfasserin aut Reza Seddighi verfasserin aut Pierre-Yves Mulon verfasserin aut Henry S. Adair verfasserin aut David E. Anderson verfasserin aut In Frontiers in Surgery Frontiers Media S.A., 2014 8(2021) (DE-627)788288954 (DE-600)2773823-1 2296875X nnns volume:8 year:2021 https://doi.org/10.3389/fsurg.2021.637268 kostenfrei https://doaj.org/article/bc9083661d874d3cbef316f70f058306 kostenfrei https://www.frontiersin.org/articles/10.3389/fsurg.2021.637268/full kostenfrei https://doaj.org/toc/2296-875X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_2446 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2021
allfieldsGer	10.3389/fsurg.2021.637268 doi (DE-627)DOAJ062414178 (DE-599)DOAJbc9083661d874d3cbef316f70f058306 DE-627 ger DE-627 rakwb eng RD1-811 Remigiusz M. Grzeskowiak verfasserin aut Temporal Changes in Reverse Torque of Locking-Head Screws Used in the Locking Plate in Segmental Tibial Defect in Goat Model 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The objective of this study was to evaluate changes in peak reverse torque (PRT) of the locking head screws that occur over time. A locking plate construct, consisting of an 8-hole locking plate and 8 locking screws, was used to stabilize a tibia segmental bone defect in a goat model. PRT was measured after periods of 3, 6, 9, and 12 months of ambulation. PRT for each screw was determined during plate removal. Statistical analysis revealed that after 6 months of loading, locking screws placed in position no. 4 had significantly less PRT as compared with screws placed in position no. 5 (p < 0.05). There were no statistically significant differences in PRT between groups as a factor of time (p > 0.05). Intracortical fractures occurred during the placement of 151 out of 664 screws (22.7%) and were significantly more common in the screw positions closest to the osteotomy (positions 4 and 5, p < 0.05). Periosteal and endosteal bone reactions and locking screw backout occurred significantly more often in the proximal bone segments (p < 0.05). Screw backout significantly, negatively influenced the PRT of the screws placed in positions no. 3, 4, and 5 (p < 0.05). The locking plate-screw constructs provided stable fixation of 2.5-cm segmental tibia defects in a goat animal model for up to 12 months. animal models segmental bone defect bone healing locking screws orthopedics biomechanics Surgery Rebecca E. Rifkin verfasserin aut Elizabeth G. Croy verfasserin aut Richard C. Steiner verfasserin aut Reza Seddighi verfasserin aut Pierre-Yves Mulon verfasserin aut Henry S. Adair verfasserin aut David E. Anderson verfasserin aut In Frontiers in Surgery Frontiers Media S.A., 2014 8(2021) (DE-627)788288954 (DE-600)2773823-1 2296875X nnns volume:8 year:2021 https://doi.org/10.3389/fsurg.2021.637268 kostenfrei https://doaj.org/article/bc9083661d874d3cbef316f70f058306 kostenfrei https://www.frontiersin.org/articles/10.3389/fsurg.2021.637268/full kostenfrei https://doaj.org/toc/2296-875X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_2446 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2021
allfieldsSound	10.3389/fsurg.2021.637268 doi (DE-627)DOAJ062414178 (DE-599)DOAJbc9083661d874d3cbef316f70f058306 DE-627 ger DE-627 rakwb eng RD1-811 Remigiusz M. Grzeskowiak verfasserin aut Temporal Changes in Reverse Torque of Locking-Head Screws Used in the Locking Plate in Segmental Tibial Defect in Goat Model 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The objective of this study was to evaluate changes in peak reverse torque (PRT) of the locking head screws that occur over time. A locking plate construct, consisting of an 8-hole locking plate and 8 locking screws, was used to stabilize a tibia segmental bone defect in a goat model. PRT was measured after periods of 3, 6, 9, and 12 months of ambulation. PRT for each screw was determined during plate removal. Statistical analysis revealed that after 6 months of loading, locking screws placed in position no. 4 had significantly less PRT as compared with screws placed in position no. 5 (p < 0.05). There were no statistically significant differences in PRT between groups as a factor of time (p > 0.05). Intracortical fractures occurred during the placement of 151 out of 664 screws (22.7%) and were significantly more common in the screw positions closest to the osteotomy (positions 4 and 5, p < 0.05). Periosteal and endosteal bone reactions and locking screw backout occurred significantly more often in the proximal bone segments (p < 0.05). Screw backout significantly, negatively influenced the PRT of the screws placed in positions no. 3, 4, and 5 (p < 0.05). The locking plate-screw constructs provided stable fixation of 2.5-cm segmental tibia defects in a goat animal model for up to 12 months. animal models segmental bone defect bone healing locking screws orthopedics biomechanics Surgery Rebecca E. Rifkin verfasserin aut Elizabeth G. Croy verfasserin aut Richard C. Steiner verfasserin aut Reza Seddighi verfasserin aut Pierre-Yves Mulon verfasserin aut Henry S. Adair verfasserin aut David E. Anderson verfasserin aut In Frontiers in Surgery Frontiers Media S.A., 2014 8(2021) (DE-627)788288954 (DE-600)2773823-1 2296875X nnns volume:8 year:2021 https://doi.org/10.3389/fsurg.2021.637268 kostenfrei https://doaj.org/article/bc9083661d874d3cbef316f70f058306 kostenfrei https://www.frontiersin.org/articles/10.3389/fsurg.2021.637268/full kostenfrei https://doaj.org/toc/2296-875X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_2446 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2021
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authorswithroles_txt_mv	Remigiusz M. Grzeskowiak @@aut@@ Rebecca E. Rifkin @@aut@@ Elizabeth G. Croy @@aut@@ Richard C. Steiner @@aut@@ Reza Seddighi @@aut@@ Pierre-Yves Mulon @@aut@@ Henry S. Adair @@aut@@ David E. Anderson @@aut@@
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callnumber-first	R - Medicine
author	Remigiusz M. Grzeskowiak
spellingShingle	Remigiusz M. Grzeskowiak misc RD1-811 misc animal models misc segmental bone defect misc bone healing misc locking screws misc orthopedics misc biomechanics misc Surgery Temporal Changes in Reverse Torque of Locking-Head Screws Used in the Locking Plate in Segmental Tibial Defect in Goat Model
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topic_title	RD1-811 Temporal Changes in Reverse Torque of Locking-Head Screws Used in the Locking Plate in Segmental Tibial Defect in Goat Model animal models segmental bone defect bone healing locking screws orthopedics biomechanics
topic	misc RD1-811 misc animal models misc segmental bone defect misc bone healing misc locking screws misc orthopedics misc biomechanics misc Surgery
topic_unstemmed	misc RD1-811 misc animal models misc segmental bone defect misc bone healing misc locking screws misc orthopedics misc biomechanics misc Surgery
topic_browse	misc RD1-811 misc animal models misc segmental bone defect misc bone healing misc locking screws misc orthopedics misc biomechanics misc Surgery
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title	Temporal Changes in Reverse Torque of Locking-Head Screws Used in the Locking Plate in Segmental Tibial Defect in Goat Model
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title_full	Temporal Changes in Reverse Torque of Locking-Head Screws Used in the Locking Plate in Segmental Tibial Defect in Goat Model
author_sort	Remigiusz M. Grzeskowiak
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author_browse	Remigiusz M. Grzeskowiak Rebecca E. Rifkin Elizabeth G. Croy Richard C. Steiner Reza Seddighi Pierre-Yves Mulon Henry S. Adair David E. Anderson
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author-letter	Remigiusz M. Grzeskowiak
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title_sort	temporal changes in reverse torque of locking-head screws used in the locking plate in segmental tibial defect in goat model
callnumber	RD1-811
title_auth	Temporal Changes in Reverse Torque of Locking-Head Screws Used in the Locking Plate in Segmental Tibial Defect in Goat Model
abstract	The objective of this study was to evaluate changes in peak reverse torque (PRT) of the locking head screws that occur over time. A locking plate construct, consisting of an 8-hole locking plate and 8 locking screws, was used to stabilize a tibia segmental bone defect in a goat model. PRT was measured after periods of 3, 6, 9, and 12 months of ambulation. PRT for each screw was determined during plate removal. Statistical analysis revealed that after 6 months of loading, locking screws placed in position no. 4 had significantly less PRT as compared with screws placed in position no. 5 (p < 0.05). There were no statistically significant differences in PRT between groups as a factor of time (p > 0.05). Intracortical fractures occurred during the placement of 151 out of 664 screws (22.7%) and were significantly more common in the screw positions closest to the osteotomy (positions 4 and 5, p < 0.05). Periosteal and endosteal bone reactions and locking screw backout occurred significantly more often in the proximal bone segments (p < 0.05). Screw backout significantly, negatively influenced the PRT of the screws placed in positions no. 3, 4, and 5 (p < 0.05). The locking plate-screw constructs provided stable fixation of 2.5-cm segmental tibia defects in a goat animal model for up to 12 months.
abstractGer	The objective of this study was to evaluate changes in peak reverse torque (PRT) of the locking head screws that occur over time. A locking plate construct, consisting of an 8-hole locking plate and 8 locking screws, was used to stabilize a tibia segmental bone defect in a goat model. PRT was measured after periods of 3, 6, 9, and 12 months of ambulation. PRT for each screw was determined during plate removal. Statistical analysis revealed that after 6 months of loading, locking screws placed in position no. 4 had significantly less PRT as compared with screws placed in position no. 5 (p < 0.05). There were no statistically significant differences in PRT between groups as a factor of time (p > 0.05). Intracortical fractures occurred during the placement of 151 out of 664 screws (22.7%) and were significantly more common in the screw positions closest to the osteotomy (positions 4 and 5, p < 0.05). Periosteal and endosteal bone reactions and locking screw backout occurred significantly more often in the proximal bone segments (p < 0.05). Screw backout significantly, negatively influenced the PRT of the screws placed in positions no. 3, 4, and 5 (p < 0.05). The locking plate-screw constructs provided stable fixation of 2.5-cm segmental tibia defects in a goat animal model for up to 12 months.
abstract_unstemmed	The objective of this study was to evaluate changes in peak reverse torque (PRT) of the locking head screws that occur over time. A locking plate construct, consisting of an 8-hole locking plate and 8 locking screws, was used to stabilize a tibia segmental bone defect in a goat model. PRT was measured after periods of 3, 6, 9, and 12 months of ambulation. PRT for each screw was determined during plate removal. Statistical analysis revealed that after 6 months of loading, locking screws placed in position no. 4 had significantly less PRT as compared with screws placed in position no. 5 (p < 0.05). There were no statistically significant differences in PRT between groups as a factor of time (p > 0.05). Intracortical fractures occurred during the placement of 151 out of 664 screws (22.7%) and were significantly more common in the screw positions closest to the osteotomy (positions 4 and 5, p < 0.05). Periosteal and endosteal bone reactions and locking screw backout occurred significantly more often in the proximal bone segments (p < 0.05). Screw backout significantly, negatively influenced the PRT of the screws placed in positions no. 3, 4, and 5 (p < 0.05). The locking plate-screw constructs provided stable fixation of 2.5-cm segmental tibia defects in a goat animal model for up to 12 months.
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title_short	Temporal Changes in Reverse Torque of Locking-Head Screws Used in the Locking Plate in Segmental Tibial Defect in Goat Model
url	https://doi.org/10.3389/fsurg.2021.637268 https://doaj.org/article/bc9083661d874d3cbef316f70f058306 https://www.frontiersin.org/articles/10.3389/fsurg.2021.637268/full https://doaj.org/toc/2296-875X
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author2	Rebecca E. Rifkin Elizabeth G. Croy Richard C. Steiner Reza Seddighi Pierre-Yves Mulon Henry S. Adair David E. Anderson
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up_date	2024-07-04T01:34:16.699Z
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Grzeskowiak</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Temporal Changes in Reverse Torque of Locking-Head Screws Used in the Locking Plate in Segmental Tibial Defect in Goat Model</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2021</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">The objective of this study was to evaluate changes in peak reverse torque (PRT) of the locking head screws that occur over time. 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Temporal Changes in Reverse Torque of Locking-Head Screws Used in the Locking Plate in Segmental Tibial Defect in Goat Model

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