The effects of low-intensity pulsed ultrasound on bioabsorbable self-reinforced poly l-lactide screws
The effects of low-intensity pulsed ultrasound on the mechanical and molecular properties of self-reinforced poly l-lactide (SR-PLLA) screws were studied in vitro. SR-PLLA screws of 4.5 mm diameter were exposed on low-intensity ultrasound for 1, 3, 6, 9, and 12 weeks. After exposure, the bending str...
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| Veröffentlicht in: | Biomaterials 2002-07, Vol.23 (13), p.2733-2736 |
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| container_title | Biomaterials |
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| creator | Handolin, Lauri Pohjonen, Timo Partio, Esa K. Arnala, Ilkka Törmälä, Pertti Rokkanen, Pentti |
| description | The effects of low-intensity pulsed ultrasound on the mechanical and molecular properties of self-reinforced poly
l-lactide (SR-PLLA) screws were studied in vitro. SR-PLLA screws of 4.5
mm diameter were exposed on low-intensity ultrasound for 1, 3, 6, 9, and 12 weeks. After exposure, the bending strength, shear strength, and molecular weight were investigated. There were no differences in the investigated properties between the ultrasound exposure and control groups. We found no evidence that low-intensity ultrasound has any effect on the mechanical or molecular properties of SR-PLLA screws in vitro. The present results suggest that biodegradable SR-PLLA fixation devices are compatible with low-intensity ultrasound in vitro. |
| doi_str_mv | 10.1016/S0142-9612(02)00006-6 |
| format | Article |
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l-lactide (SR-PLLA) screws were studied in vitro. SR-PLLA screws of 4.5
mm diameter were exposed on low-intensity ultrasound for 1, 3, 6, 9, and 12 weeks. After exposure, the bending strength, shear strength, and molecular weight were investigated. There were no differences in the investigated properties between the ultrasound exposure and control groups. We found no evidence that low-intensity ultrasound has any effect on the mechanical or molecular properties of SR-PLLA screws in vitro. The present results suggest that biodegradable SR-PLLA fixation devices are compatible with low-intensity ultrasound in vitro.</description><identifier>ISSN: 0142-9612</identifier><identifier>EISSN: 1878-5905</identifier><identifier>DOI: 10.1016/S0142-9612(02)00006-6</identifier><identifier>PMID: 12059023</identifier><language>eng</language><publisher>Netherlands: Elsevier Ltd</publisher><subject>Absorbable Implants ; Absorption ; Bioabsorbable SR-PLLA implant ; Biocompatible Materials - chemistry ; Bone Screws ; Lactic Acid - analogs & derivatives ; Lactic Acid - chemistry ; Low-intensity ultrasound ; Mechanical properties ; Molecular properties ; Molecular Weight ; Polyesters - chemistry ; Polymers - chemistry ; Stress, Mechanical ; Time Factors ; Ultrasonics</subject><ispartof>Biomaterials, 2002-07, Vol.23 (13), p.2733-2736</ispartof><rights>2002 Elsevier Science Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c458t-7c3b7844308502f1d41cd6229bd61581115f1a0ec979233a50ff46c576731a863</citedby><cites>FETCH-LOGICAL-c458t-7c3b7844308502f1d41cd6229bd61581115f1a0ec979233a50ff46c576731a863</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S0142-9612(02)00006-6$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/12059023$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Handolin, Lauri</creatorcontrib><creatorcontrib>Pohjonen, Timo</creatorcontrib><creatorcontrib>Partio, Esa K.</creatorcontrib><creatorcontrib>Arnala, Ilkka</creatorcontrib><creatorcontrib>Törmälä, Pertti</creatorcontrib><creatorcontrib>Rokkanen, Pentti</creatorcontrib><title>The effects of low-intensity pulsed ultrasound on bioabsorbable self-reinforced poly l-lactide screws</title><title>Biomaterials</title><addtitle>Biomaterials</addtitle><description>The effects of low-intensity pulsed ultrasound on the mechanical and molecular properties of self-reinforced poly
l-lactide (SR-PLLA) screws were studied in vitro. SR-PLLA screws of 4.5
mm diameter were exposed on low-intensity ultrasound for 1, 3, 6, 9, and 12 weeks. After exposure, the bending strength, shear strength, and molecular weight were investigated. There were no differences in the investigated properties between the ultrasound exposure and control groups. We found no evidence that low-intensity ultrasound has any effect on the mechanical or molecular properties of SR-PLLA screws in vitro. The present results suggest that biodegradable SR-PLLA fixation devices are compatible with low-intensity ultrasound in vitro.</description><subject>Absorbable Implants</subject><subject>Absorption</subject><subject>Bioabsorbable SR-PLLA implant</subject><subject>Biocompatible Materials - chemistry</subject><subject>Bone Screws</subject><subject>Lactic Acid - analogs & derivatives</subject><subject>Lactic Acid - chemistry</subject><subject>Low-intensity ultrasound</subject><subject>Mechanical properties</subject><subject>Molecular properties</subject><subject>Molecular Weight</subject><subject>Polyesters - chemistry</subject><subject>Polymers - chemistry</subject><subject>Stress, Mechanical</subject><subject>Time Factors</subject><subject>Ultrasonics</subject><issn>0142-9612</issn><issn>1878-5905</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkV9rFDEUxYNY7Lb6EZQ8SX1Izc1M_syTSKlVKPhgfQ6ZzA1GspM1mbHstzfrLvrYS-ByyS_nhnMIeQ38Gjio99849IINCsQVF-94K8XUM7IBow2TA5fPyeYfck4uav3J28x78YKcg-ANEd2G4MMPpBgC-qXSHGjKjyzOC841Lnu6W1PFia5pKa7mdZ5onukYsxtrLqMbE9KKKbCCcQ65-MbuctrTxJLzS5zatS_4WF-Ss-Ca1KtTvyTfP90-3Hxm91_vvtx8vGe-l2Zh2nejNn3fcSO5CDD14CclxDBOCqQBABnAcfSDHkTXOclD6JWXWukOnFHdJXl71N2V_GvFuthtrB5TcjPmtVoNBnjH9ZOg0FoOBoYGyiPoS661YLC7Ereu7C1wewjC_g3CHly2vJ1DEPbwkzenBeu4xen_q5PzDfhwBLD58TtisdVHnJuFsbQw7JTjEyv-ABvQl5A</recordid><startdate>20020701</startdate><enddate>20020701</enddate><creator>Handolin, Lauri</creator><creator>Pohjonen, Timo</creator><creator>Partio, Esa K.</creator><creator>Arnala, Ilkka</creator><creator>Törmälä, Pertti</creator><creator>Rokkanen, Pentti</creator><general>Elsevier Ltd</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>7SR</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope><scope>7X8</scope></search><sort><creationdate>20020701</creationdate><title>The effects of low-intensity pulsed ultrasound on bioabsorbable self-reinforced poly l-lactide screws</title><author>Handolin, Lauri ; Pohjonen, Timo ; Partio, Esa K. ; Arnala, Ilkka ; Törmälä, Pertti ; Rokkanen, Pentti</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c458t-7c3b7844308502f1d41cd6229bd61581115f1a0ec979233a50ff46c576731a863</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Absorbable Implants</topic><topic>Absorption</topic><topic>Bioabsorbable SR-PLLA implant</topic><topic>Biocompatible Materials - chemistry</topic><topic>Bone Screws</topic><topic>Lactic Acid - analogs & derivatives</topic><topic>Lactic Acid - chemistry</topic><topic>Low-intensity ultrasound</topic><topic>Mechanical properties</topic><topic>Molecular properties</topic><topic>Molecular Weight</topic><topic>Polyesters - chemistry</topic><topic>Polymers - chemistry</topic><topic>Stress, Mechanical</topic><topic>Time Factors</topic><topic>Ultrasonics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Handolin, Lauri</creatorcontrib><creatorcontrib>Pohjonen, Timo</creatorcontrib><creatorcontrib>Partio, Esa K.</creatorcontrib><creatorcontrib>Arnala, Ilkka</creatorcontrib><creatorcontrib>Törmälä, Pertti</creatorcontrib><creatorcontrib>Rokkanen, Pentti</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>MEDLINE - Academic</collection><jtitle>Biomaterials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Handolin, Lauri</au><au>Pohjonen, Timo</au><au>Partio, Esa K.</au><au>Arnala, Ilkka</au><au>Törmälä, Pertti</au><au>Rokkanen, Pentti</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The effects of low-intensity pulsed ultrasound on bioabsorbable self-reinforced poly l-lactide screws</atitle><jtitle>Biomaterials</jtitle><addtitle>Biomaterials</addtitle><date>2002-07-01</date><risdate>2002</risdate><volume>23</volume><issue>13</issue><spage>2733</spage><epage>2736</epage><pages>2733-2736</pages><issn>0142-9612</issn><eissn>1878-5905</eissn><abstract>The effects of low-intensity pulsed ultrasound on the mechanical and molecular properties of self-reinforced poly
l-lactide (SR-PLLA) screws were studied in vitro. SR-PLLA screws of 4.5
mm diameter were exposed on low-intensity ultrasound for 1, 3, 6, 9, and 12 weeks. After exposure, the bending strength, shear strength, and molecular weight were investigated. There were no differences in the investigated properties between the ultrasound exposure and control groups. We found no evidence that low-intensity ultrasound has any effect on the mechanical or molecular properties of SR-PLLA screws in vitro. The present results suggest that biodegradable SR-PLLA fixation devices are compatible with low-intensity ultrasound in vitro.</abstract><cop>Netherlands</cop><pub>Elsevier Ltd</pub><pmid>12059023</pmid><doi>10.1016/S0142-9612(02)00006-6</doi><tpages>4</tpages></addata></record> |
| fulltext | fulltext |
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| ispartof | Biomaterials, 2002-07, Vol.23 (13), p.2733-2736 |
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| language | eng |
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| source | MEDLINE; Access via ScienceDirect (Elsevier) |
| subjects | Absorbable Implants Absorption Bioabsorbable SR-PLLA implant Biocompatible Materials - chemistry Bone Screws Lactic Acid - analogs & derivatives Lactic Acid - chemistry Low-intensity ultrasound Mechanical properties Molecular properties Molecular Weight Polyesters - chemistry Polymers - chemistry Stress, Mechanical Time Factors Ultrasonics |
| title | The effects of low-intensity pulsed ultrasound on bioabsorbable self-reinforced poly l-lactide screws |
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