Mechanical testing of a device for subcutaneous internal anterior pelvic ring fixation versus external pelvic ring fixation
Although useful in the emergency treatment of pelvic ring injuries, external fixation is associated with pin tract infections, the patient's limited mobility and a restricted surgical accessibility to the lower abdomen. In this study, the mechanical stability of a subcutaneous internal anterior...
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| Veröffentlicht in: | BMC musculoskeletal disorders 2014-03, Vol.15 (1), p.111-111, Article 111 |
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| creator | Osterhoff, Georg Tiziani, Simon Ferguson, Stephen J Spreiter, Gregor Scheyerer, Max J Spinas, Gian-Leza Wanner, Guido A Simmen, Hans-Peter Werner, Clément M L |
| description | Although useful in the emergency treatment of pelvic ring injuries, external fixation is associated with pin tract infections, the patient's limited mobility and a restricted surgical accessibility to the lower abdomen. In this study, the mechanical stability of a subcutaneous internal anterior fixation (SIAF) system is investigated.
A standard external fixation and a SIAF system were tested on pairs of Polyoxymethylene testing cylinders using a universal testing machine. Each specimen was subjected to a total of 2000 consecutive cyclic loadings at 1 Hz with sinusoidal lateral compression/distraction (+/-50 N) and torque (+/- 0.5 Nm) loading alternating every 200 cycles. Translational and rotational stiffness were determined at 100, 300, 500, 700 and 900 cycles.
There was no significant difference in translational stiffness between the SIAF and the standard external fixation when compared at 500 (p = .089), 700 (p = .081), and 900 (p = .266) cycles. Rotational stiffness observed for the SIAF was about 50 percent higher than the standard external fixation at 300 (p = .005), 500 (p = .020), and 900 (p = .005) cycles. No loosening or failure of the rod-pin/rod-screw interfaces was seen.
In comparison with the standard external fixation system, the tested device for subcutaneous internal anterior fixation (SIAF) in vitro has similar translational and superior rotational stiffness. |
| doi_str_mv | 10.1186/1471-2474-15-111 |
| format | Article |
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A standard external fixation and a SIAF system were tested on pairs of Polyoxymethylene testing cylinders using a universal testing machine. Each specimen was subjected to a total of 2000 consecutive cyclic loadings at 1 Hz with sinusoidal lateral compression/distraction (+/-50 N) and torque (+/- 0.5 Nm) loading alternating every 200 cycles. Translational and rotational stiffness were determined at 100, 300, 500, 700 and 900 cycles.
There was no significant difference in translational stiffness between the SIAF and the standard external fixation when compared at 500 (p = .089), 700 (p = .081), and 900 (p = .266) cycles. Rotational stiffness observed for the SIAF was about 50 percent higher than the standard external fixation at 300 (p = .005), 500 (p = .020), and 900 (p = .005) cycles. No loosening or failure of the rod-pin/rod-screw interfaces was seen.
In comparison with the standard external fixation system, the tested device for subcutaneous internal anterior fixation (SIAF) in vitro has similar translational and superior rotational stiffness.</description><identifier>ISSN: 1471-2474</identifier><identifier>EISSN: 1471-2474</identifier><identifier>DOI: 10.1186/1471-2474-15-111</identifier><identifier>PMID: 24684828</identifier><language>eng</language><publisher>England: BioMed Central Ltd</publisher><subject>Abdomen ; Analysis ; Biomechanics ; Bone Nails ; Bone Screws ; Compressive Strength ; Emergency medicine ; Formaldehyde ; Fractures ; Health aspects ; Humans ; In Vitro Techniques ; Internal fixation in fractures ; Internal Fixators ; Materials Testing ; Models, Anatomic ; Musculoskeletal diseases ; Patient Positioning - adverse effects ; Patients ; Pelvic Bones - injuries ; Pelvic Bones - surgery ; Pelvis ; Pliability ; Stress, Mechanical ; Surgery ; Torsion, Mechanical ; Trauma ; Weight-Bearing</subject><ispartof>BMC musculoskeletal disorders, 2014-03, Vol.15 (1), p.111-111, Article 111</ispartof><rights>COPYRIGHT 2014 BioMed Central Ltd.</rights><rights>2014 Osterhoff et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.</rights><rights>Copyright © 2014 Osterhoff et al.; licensee BioMed Central Ltd. 2014 Osterhoff et al.; licensee BioMed Central Ltd.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c491t-bda220ec567a668b2de8eb64bc5f07c68dee29d4efce77a45e19bca89e2a179b3</citedby><cites>FETCH-LOGICAL-c491t-bda220ec567a668b2de8eb64bc5f07c68dee29d4efce77a45e19bca89e2a179b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3994226/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3994226/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,27901,27902,53766,53768</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24684828$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Osterhoff, Georg</creatorcontrib><creatorcontrib>Tiziani, Simon</creatorcontrib><creatorcontrib>Ferguson, Stephen J</creatorcontrib><creatorcontrib>Spreiter, Gregor</creatorcontrib><creatorcontrib>Scheyerer, Max J</creatorcontrib><creatorcontrib>Spinas, Gian-Leza</creatorcontrib><creatorcontrib>Wanner, Guido A</creatorcontrib><creatorcontrib>Simmen, Hans-Peter</creatorcontrib><creatorcontrib>Werner, Clément M L</creatorcontrib><title>Mechanical testing of a device for subcutaneous internal anterior pelvic ring fixation versus external pelvic ring fixation</title><title>BMC musculoskeletal disorders</title><addtitle>BMC Musculoskelet Disord</addtitle><description>Although useful in the emergency treatment of pelvic ring injuries, external fixation is associated with pin tract infections, the patient's limited mobility and a restricted surgical accessibility to the lower abdomen. In this study, the mechanical stability of a subcutaneous internal anterior fixation (SIAF) system is investigated.
A standard external fixation and a SIAF system were tested on pairs of Polyoxymethylene testing cylinders using a universal testing machine. Each specimen was subjected to a total of 2000 consecutive cyclic loadings at 1 Hz with sinusoidal lateral compression/distraction (+/-50 N) and torque (+/- 0.5 Nm) loading alternating every 200 cycles. Translational and rotational stiffness were determined at 100, 300, 500, 700 and 900 cycles.
There was no significant difference in translational stiffness between the SIAF and the standard external fixation when compared at 500 (p = .089), 700 (p = .081), and 900 (p = .266) cycles. Rotational stiffness observed for the SIAF was about 50 percent higher than the standard external fixation at 300 (p = .005), 500 (p = .020), and 900 (p = .005) cycles. No loosening or failure of the rod-pin/rod-screw interfaces was seen.
In comparison with the standard external fixation system, the tested device for subcutaneous internal anterior fixation (SIAF) in vitro has similar translational and superior rotational stiffness.</description><subject>Abdomen</subject><subject>Analysis</subject><subject>Biomechanics</subject><subject>Bone Nails</subject><subject>Bone Screws</subject><subject>Compressive Strength</subject><subject>Emergency medicine</subject><subject>Formaldehyde</subject><subject>Fractures</subject><subject>Health aspects</subject><subject>Humans</subject><subject>In Vitro Techniques</subject><subject>Internal fixation in fractures</subject><subject>Internal Fixators</subject><subject>Materials Testing</subject><subject>Models, Anatomic</subject><subject>Musculoskeletal diseases</subject><subject>Patient Positioning - adverse effects</subject><subject>Patients</subject><subject>Pelvic Bones - injuries</subject><subject>Pelvic Bones - surgery</subject><subject>Pelvis</subject><subject>Pliability</subject><subject>Stress, Mechanical</subject><subject>Surgery</subject><subject>Torsion, Mechanical</subject><subject>Trauma</subject><subject>Weight-Bearing</subject><issn>1471-2474</issn><issn>1471-2474</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNptkstr3DAQxkVpadK0956KoJdenFoP63EphNAXpOSSnIUsjzYKXmkr2UtC__nK7GablKCDhpnf9400DELvSXtKiBKfCZekoVzyhnQNIeQFOj6kXj6Kj9CbUm7blkjF9Gt0RLlQXFF1jP78AndjY3B2xBOUKcQVTh5bPMA2OMA-ZVzm3s2TjZDmgkOcIMdK2yUItbyBsaI4L1If7uwUUsRbyKXScLenn4PeolfejgXe7e8TdP3t69X5j-bi8vvP87OLxnFNpqYfLKUtuE5IK4Tq6QAKesF71_lWOqEGAKoHDt6BlJZ3QHTvrNJALZG6Zyfoy853M_drGBzEKdvRbHJY23xvkg3maSWGG7NKW8O05pSKavBpb5DT77lOyaxDcTCOu5kY0hHWciGErOjH_9DbNC8TWCgmmRadYv-olR3BhOhT7esWU3PWMd1pWhtX6vQZqp4B1sGlCD7U_BNBuxO4nErJ4A9_JK1ZFsYsG2GWjaivqRlSJR8ez-YgeNgQ9hepHr42</recordid><startdate>20140331</startdate><enddate>20140331</enddate><creator>Osterhoff, Georg</creator><creator>Tiziani, Simon</creator><creator>Ferguson, Stephen J</creator><creator>Spreiter, Gregor</creator><creator>Scheyerer, Max J</creator><creator>Spinas, Gian-Leza</creator><creator>Wanner, Guido A</creator><creator>Simmen, Hans-Peter</creator><creator>Werner, Clément M L</creator><general>BioMed Central Ltd</general><general>BioMed Central</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QP</scope><scope>7RV</scope><scope>7TK</scope><scope>7TS</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>K9.</scope><scope>KB0</scope><scope>M0S</scope><scope>M1P</scope><scope>NAPCQ</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20140331</creationdate><title>Mechanical testing of a device for subcutaneous internal anterior pelvic ring fixation versus external pelvic ring fixation</title><author>Osterhoff, Georg ; Tiziani, Simon ; Ferguson, Stephen J ; Spreiter, Gregor ; Scheyerer, Max J ; Spinas, Gian-Leza ; Wanner, Guido A ; Simmen, Hans-Peter ; Werner, Clément M L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c491t-bda220ec567a668b2de8eb64bc5f07c68dee29d4efce77a45e19bca89e2a179b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Abdomen</topic><topic>Analysis</topic><topic>Biomechanics</topic><topic>Bone Nails</topic><topic>Bone Screws</topic><topic>Compressive Strength</topic><topic>Emergency medicine</topic><topic>Formaldehyde</topic><topic>Fractures</topic><topic>Health aspects</topic><topic>Humans</topic><topic>In Vitro Techniques</topic><topic>Internal fixation in fractures</topic><topic>Internal Fixators</topic><topic>Materials Testing</topic><topic>Models, Anatomic</topic><topic>Musculoskeletal diseases</topic><topic>Patient Positioning - adverse effects</topic><topic>Patients</topic><topic>Pelvic Bones - injuries</topic><topic>Pelvic Bones - surgery</topic><topic>Pelvis</topic><topic>Pliability</topic><topic>Stress, Mechanical</topic><topic>Surgery</topic><topic>Torsion, Mechanical</topic><topic>Trauma</topic><topic>Weight-Bearing</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Osterhoff, Georg</creatorcontrib><creatorcontrib>Tiziani, Simon</creatorcontrib><creatorcontrib>Ferguson, Stephen J</creatorcontrib><creatorcontrib>Spreiter, Gregor</creatorcontrib><creatorcontrib>Scheyerer, Max J</creatorcontrib><creatorcontrib>Spinas, Gian-Leza</creatorcontrib><creatorcontrib>Wanner, Guido A</creatorcontrib><creatorcontrib>Simmen, Hans-Peter</creatorcontrib><creatorcontrib>Werner, Clément M L</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>Nursing & Allied Health Database</collection><collection>Neurosciences Abstracts</collection><collection>Physical Education Index</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Database (Alumni Edition)</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Nursing & Allied Health Premium</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>BMC musculoskeletal disorders</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Osterhoff, Georg</au><au>Tiziani, Simon</au><au>Ferguson, Stephen J</au><au>Spreiter, Gregor</au><au>Scheyerer, Max J</au><au>Spinas, Gian-Leza</au><au>Wanner, Guido A</au><au>Simmen, Hans-Peter</au><au>Werner, Clément M L</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mechanical testing of a device for subcutaneous internal anterior pelvic ring fixation versus external pelvic ring fixation</atitle><jtitle>BMC musculoskeletal disorders</jtitle><addtitle>BMC Musculoskelet Disord</addtitle><date>2014-03-31</date><risdate>2014</risdate><volume>15</volume><issue>1</issue><spage>111</spage><epage>111</epage><pages>111-111</pages><artnum>111</artnum><issn>1471-2474</issn><eissn>1471-2474</eissn><abstract>Although useful in the emergency treatment of pelvic ring injuries, external fixation is associated with pin tract infections, the patient's limited mobility and a restricted surgical accessibility to the lower abdomen. In this study, the mechanical stability of a subcutaneous internal anterior fixation (SIAF) system is investigated.
A standard external fixation and a SIAF system were tested on pairs of Polyoxymethylene testing cylinders using a universal testing machine. Each specimen was subjected to a total of 2000 consecutive cyclic loadings at 1 Hz with sinusoidal lateral compression/distraction (+/-50 N) and torque (+/- 0.5 Nm) loading alternating every 200 cycles. Translational and rotational stiffness were determined at 100, 300, 500, 700 and 900 cycles.
There was no significant difference in translational stiffness between the SIAF and the standard external fixation when compared at 500 (p = .089), 700 (p = .081), and 900 (p = .266) cycles. Rotational stiffness observed for the SIAF was about 50 percent higher than the standard external fixation at 300 (p = .005), 500 (p = .020), and 900 (p = .005) cycles. No loosening or failure of the rod-pin/rod-screw interfaces was seen.
In comparison with the standard external fixation system, the tested device for subcutaneous internal anterior fixation (SIAF) in vitro has similar translational and superior rotational stiffness.</abstract><cop>England</cop><pub>BioMed Central Ltd</pub><pmid>24684828</pmid><doi>10.1186/1471-2474-15-111</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| source | MEDLINE; DOAJ Directory of Open Access Journals; EZB-FREE-00999 freely available EZB journals; PubMed Central; SpringerLink Journals - AutoHoldings; PubMed Central Open Access; Springer Nature OA Free Journals |
| subjects | Abdomen Analysis Biomechanics Bone Nails Bone Screws Compressive Strength Emergency medicine Formaldehyde Fractures Health aspects Humans In Vitro Techniques Internal fixation in fractures Internal Fixators Materials Testing Models, Anatomic Musculoskeletal diseases Patient Positioning - adverse effects Patients Pelvic Bones - injuries Pelvic Bones - surgery Pelvis Pliability Stress, Mechanical Surgery Torsion, Mechanical Trauma Weight-Bearing |
| title | Mechanical testing of a device for subcutaneous internal anterior pelvic ring fixation versus external pelvic ring fixation |
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