The forces in a knee brace as a function of hinge design and placement
Customized knee braces for three normal subjects were instrumented to monitor the forces and moments across the hinges as the subjects performed various activities. The forces and moments were taken to rep resent a mismatch between actual knee motion and the motion the brace sought to impose. The di...
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| Veröffentlicht in: | The American journal of sports medicine 1989-07, Vol.17 (4), p.535-543 |
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| container_title | The American journal of sports medicine |
| container_volume | 17 |
| creator | Regalbuto, M.A. Rovick, J.S. Walker, P.S. |
| description | Customized knee braces for three normal subjects were instrumented to monitor the forces and moments across the hinges as
the subjects performed various activities. The forces and moments were taken to rep resent a mismatch between actual knee
motion and the motion the brace sought to impose. The different hinge designs studied were fixed axis, gear-on-gear, rack-
and-pinion, and natural 3-D; they showed only moder ate differences in forces. Much larger differences were seen if the hinges
were offset 12 mm from the ideal placement. Posterior placement resulted in the least force and anterior placement the highest.
The mismatch of knee motion to brace motion would probably lead to abnormal ligament lengths and ten sions and other internal
mechanical changes, as well as to pistoning and discomfort. The results of this study have implications on brace design, selection,
and place ment. |
| doi_str_mv | 10.1177/036354658901700415 |
| format | Article |
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the subjects performed various activities. The forces and moments were taken to rep resent a mismatch between actual knee
motion and the motion the brace sought to impose. The different hinge designs studied were fixed axis, gear-on-gear, rack-
and-pinion, and natural 3-D; they showed only moder ate differences in forces. Much larger differences were seen if the hinges
were offset 12 mm from the ideal placement. Posterior placement resulted in the least force and anterior placement the highest.
The mismatch of knee motion to brace motion would probably lead to abnormal ligament lengths and ten sions and other internal
mechanical changes, as well as to pistoning and discomfort. The results of this study have implications on brace design, selection,
and place ment.</description><identifier>ISSN: 0363-5465</identifier><identifier>EISSN: 1552-3365</identifier><identifier>DOI: 10.1177/036354658901700415</identifier><identifier>PMID: 2782538</identifier><language>eng</language><publisher>United States: American Orthopaedic Society for Sports Medicine</publisher><subject>Adult ; Braces - adverse effects ; Equipment Design ; Humans ; Knee Joint - physiology ; Middle Aged ; Movement ; Orthopedic braces ; Stress, Mechanical</subject><ispartof>The American journal of sports medicine, 1989-07, Vol.17 (4), p.535-543</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c466t-a5d4ecbde96ac2b18eed1087ed0682d13ed5e8ef94e69b30d21eb637cc4677383</citedby><cites>FETCH-LOGICAL-c466t-a5d4ecbde96ac2b18eed1087ed0682d13ed5e8ef94e69b30d21eb637cc4677383</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://journals.sagepub.com/doi/pdf/10.1177/036354658901700415$$EPDF$$P50$$Gsage$$H</linktopdf><linktohtml>$$Uhttps://journals.sagepub.com/doi/10.1177/036354658901700415$$EHTML$$P50$$Gsage$$H</linktohtml><link.rule.ids>314,780,784,21819,27924,27925,43621,43622</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/2782538$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Regalbuto, M.A.</creatorcontrib><creatorcontrib>Rovick, J.S.</creatorcontrib><creatorcontrib>Walker, P.S.</creatorcontrib><title>The forces in a knee brace as a function of hinge design and placement</title><title>The American journal of sports medicine</title><addtitle>Am J Sports Med</addtitle><description>Customized knee braces for three normal subjects were instrumented to monitor the forces and moments across the hinges as
the subjects performed various activities. The forces and moments were taken to rep resent a mismatch between actual knee
motion and the motion the brace sought to impose. The different hinge designs studied were fixed axis, gear-on-gear, rack-
and-pinion, and natural 3-D; they showed only moder ate differences in forces. Much larger differences were seen if the hinges
were offset 12 mm from the ideal placement. Posterior placement resulted in the least force and anterior placement the highest.
The mismatch of knee motion to brace motion would probably lead to abnormal ligament lengths and ten sions and other internal
mechanical changes, as well as to pistoning and discomfort. The results of this study have implications on brace design, selection,
and place ment.</description><subject>Adult</subject><subject>Braces - adverse effects</subject><subject>Equipment Design</subject><subject>Humans</subject><subject>Knee Joint - physiology</subject><subject>Middle Aged</subject><subject>Movement</subject><subject>Orthopedic braces</subject><subject>Stress, Mechanical</subject><issn>0363-5465</issn><issn>1552-3365</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1989</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkc1u1DAUhS0EKtPCCyAheQObKtSO479lNaKAVKmbsrYc-yaTwbGHOFHh7XGUERskurKs-53PPwehd5R8olTKG8IE443gShMqCWkof4F2lPO6Ykzwl2i3AtVKvEaXOR8JKZxQF-iilqrmTO3Q3eMBcJcmBxkPEVv8IwLgdrIOsM1l3y3RzUOKOHX4MMQesIc89AWNHp9C4UaI8xv0qrMhw9vzeoW-331-3H-t7h--fNvf3leuEWKuLPcNuNaDFtbVLVUAnhIlwROhak8ZeA4KOt2A0C0jvqbQCiZdiUvJFLtCHzfvaUo_F8izGYfsIAQbIS3ZSF1TyZl-FqwJkaSR7FmQKkk0U6vxegN7G8AM0aU4w6_ZpRCgB1OeuX8wt1ILIfSqrTfaTSnnCTpzmobRTr8NJWYtz_xbXgm9P99laUfwfyPntsr8ZptnW048pmWK5bP_b_ywJQ5Df3gaJjB5tCEUPzP2mKk0jeGMsz-QMKxB</recordid><startdate>19890701</startdate><enddate>19890701</enddate><creator>Regalbuto, M.A.</creator><creator>Rovick, J.S.</creator><creator>Walker, P.S.</creator><general>American Orthopaedic Society for Sports Medicine</general><general>SAGE Publications</general><general>Sage Publications, Inc</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>7TS</scope><scope>7X8</scope></search><sort><creationdate>19890701</creationdate><title>The forces in a knee brace as a function of hinge design and placement</title><author>Regalbuto, M.A. ; Rovick, J.S. ; Walker, P.S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c466t-a5d4ecbde96ac2b18eed1087ed0682d13ed5e8ef94e69b30d21eb637cc4677383</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1989</creationdate><topic>Adult</topic><topic>Braces - adverse effects</topic><topic>Equipment Design</topic><topic>Humans</topic><topic>Knee Joint - physiology</topic><topic>Middle Aged</topic><topic>Movement</topic><topic>Orthopedic braces</topic><topic>Stress, Mechanical</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Regalbuto, M.A.</creatorcontrib><creatorcontrib>Rovick, J.S.</creatorcontrib><creatorcontrib>Walker, P.S.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Physical Education Index</collection><collection>MEDLINE - Academic</collection><jtitle>The American journal of sports medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Regalbuto, M.A.</au><au>Rovick, J.S.</au><au>Walker, P.S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The forces in a knee brace as a function of hinge design and placement</atitle><jtitle>The American journal of sports medicine</jtitle><addtitle>Am J Sports Med</addtitle><date>1989-07-01</date><risdate>1989</risdate><volume>17</volume><issue>4</issue><spage>535</spage><epage>543</epage><pages>535-543</pages><issn>0363-5465</issn><eissn>1552-3365</eissn><abstract>Customized knee braces for three normal subjects were instrumented to monitor the forces and moments across the hinges as
the subjects performed various activities. The forces and moments were taken to rep resent a mismatch between actual knee
motion and the motion the brace sought to impose. The different hinge designs studied were fixed axis, gear-on-gear, rack-
and-pinion, and natural 3-D; they showed only moder ate differences in forces. Much larger differences were seen if the hinges
were offset 12 mm from the ideal placement. Posterior placement resulted in the least force and anterior placement the highest.
The mismatch of knee motion to brace motion would probably lead to abnormal ligament lengths and ten sions and other internal
mechanical changes, as well as to pistoning and discomfort. The results of this study have implications on brace design, selection,
and place ment.</abstract><cop>United States</cop><pub>American Orthopaedic Society for Sports Medicine</pub><pmid>2782538</pmid><doi>10.1177/036354658901700415</doi><tpages>9</tpages></addata></record> |
| fulltext | fulltext |
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| ispartof | The American journal of sports medicine, 1989-07, Vol.17 (4), p.535-543 |
| issn | 0363-5465 1552-3365 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_79217539 |
| source | Access via SAGE; MEDLINE; Alma/SFX Local Collection |
| subjects | Adult Braces - adverse effects Equipment Design Humans Knee Joint - physiology Middle Aged Movement Orthopedic braces Stress, Mechanical |
| title | The forces in a knee brace as a function of hinge design and placement |
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