Changes in tibial bone density measured from standard radiographs in cemented and uncemented total knee replacements after ten years' follow-up
Stress shielding resulting in diminished bone density following total knee replacement (TKR) may increase the risk of migration and loosening of the prosthesis. This retrospective study was designed to quantify the effects of the method of fixation on peri-prosthetic tibial bone density beneath ceme...
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| Veröffentlicht in: | The bone & joint journal 2013-07, Vol.95-B (7), p.911-916 |
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| creator | Small, S R Ritter, M A Merchun, J G Davis, K E Rogge, R D |
| description | Stress shielding resulting in diminished bone density following total knee replacement (TKR) may increase the risk of migration and loosening of the prosthesis. This retrospective study was designed to quantify the effects of the method of fixation on peri-prosthetic tibial bone density beneath cemented and uncemented tibial components of similar design and with similar long-term survival rates. Standard radiographs taken between two months and 15 years post-operatively were digitised from a matched group of TKRs using cemented (n = 67) and uncemented (n = 67) AGC tibial prostheses. Digital radiograph densitometry was used to quantify changes in bone density over time. Age, length of follow-up, gender, body mass index and alignment each significantly influenced the long-term pattern of peri-prosthetic bone density. Similar long-term changes in density irrespective of the method of fixation correlated well with the high rate of survival of this TKR at 20 years, and suggest that cemented and uncemented fixation are both equally viable. |
| doi_str_mv | 10.1302/0301-620x.95b7.30537 |
| format | Article |
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This retrospective study was designed to quantify the effects of the method of fixation on peri-prosthetic tibial bone density beneath cemented and uncemented tibial components of similar design and with similar long-term survival rates. Standard radiographs taken between two months and 15 years post-operatively were digitised from a matched group of TKRs using cemented (n = 67) and uncemented (n = 67) AGC tibial prostheses. Digital radiograph densitometry was used to quantify changes in bone density over time. Age, length of follow-up, gender, body mass index and alignment each significantly influenced the long-term pattern of peri-prosthetic bone density. 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This retrospective study was designed to quantify the effects of the method of fixation on peri-prosthetic tibial bone density beneath cemented and uncemented tibial components of similar design and with similar long-term survival rates. Standard radiographs taken between two months and 15 years post-operatively were digitised from a matched group of TKRs using cemented (n = 67) and uncemented (n = 67) AGC tibial prostheses. Digital radiograph densitometry was used to quantify changes in bone density over time. Age, length of follow-up, gender, body mass index and alignment each significantly influenced the long-term pattern of peri-prosthetic bone density. Similar long-term changes in density irrespective of the method of fixation correlated well with the high rate of survival of this TKR at 20 years, and suggest that cemented and uncemented fixation are both equally viable.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Arthroplasty, Replacement, Knee - adverse effects</subject><subject>Arthroplasty, Replacement, Knee - methods</subject><subject>Bone Cements - adverse effects</subject><subject>Bone Density</subject><subject>Cementation - adverse effects</subject><subject>Cementation - methods</subject><subject>Female</subject><subject>Follow-Up Studies</subject><subject>Humans</subject><subject>Knee Joint - diagnostic imaging</subject><subject>Knee Joint - surgery</subject><subject>Knee Prosthesis</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Prosthesis Design - adverse effects</subject><subject>Prosthesis Failure</subject><subject>Radiography</subject><subject>Retrospective Studies</subject><subject>Survival Rate</subject><subject>Tibia - diagnostic imaging</subject><subject>Treatment Outcome</subject><subject>Young Adult</subject><issn>2049-4394</issn><issn>2049-4408</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo9UctO3TAQtVArQJQ_QMg7usmtHdtJvIQr-pCQuikSO2sSjyFtYgfbEb1f0V-u4QKzmdc5Z6Q5hJxxtuGC1V-YYLxqavZ3o1XfbgRToj0gxzWTupKSdR_eaqHlETlN6Tcr0THOJT8kR7XouKxlfUz-bR_A32Oio6d57EeYaB88Uos-jXlHZ4S0RrTUxTDTlMFbiJZGsGO4j7A8vDAHnNHngipruvr3NodcBP94RBpxmWC_SBRcxkgzerpDiOmCujBN4alal0_ko4Mp4elrPiG3X69_bb9XNz-__dhe3lSDaEWuFHayVlIwhyg7Ndh-EIAIVjql65Y3PWqwVqNruZRoheJOWnBaqqYMGnFCPu91lxgeV0zZzGMacJrAY1iT4eVDTDddowtU7qFDDClFdGaJ4wxxZzgzz26YZzdMcePOaHXVmhc3Cu389cLaz2jfSW-_F_8B8SuIhw</recordid><startdate>20130701</startdate><enddate>20130701</enddate><creator>Small, S R</creator><creator>Ritter, M A</creator><creator>Merchun, J G</creator><creator>Davis, K E</creator><creator>Rogge, R D</creator><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>7X8</scope></search><sort><creationdate>20130701</creationdate><title>Changes in tibial bone density measured from standard radiographs in cemented and uncemented total knee replacements after ten years' follow-up</title><author>Small, S R ; Ritter, M A ; Merchun, J G ; Davis, K E ; Rogge, R D</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c373t-5e8425430fee485cdbc3aeead4f592716be9add9ef7144ed351f4daf945614463</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>Arthroplasty, Replacement, Knee - adverse effects</topic><topic>Arthroplasty, Replacement, Knee - methods</topic><topic>Bone Cements - adverse effects</topic><topic>Bone Density</topic><topic>Cementation - adverse effects</topic><topic>Cementation - methods</topic><topic>Female</topic><topic>Follow-Up Studies</topic><topic>Humans</topic><topic>Knee Joint - diagnostic imaging</topic><topic>Knee Joint - surgery</topic><topic>Knee Prosthesis</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Prosthesis Design - adverse effects</topic><topic>Prosthesis Failure</topic><topic>Radiography</topic><topic>Retrospective Studies</topic><topic>Survival Rate</topic><topic>Tibia - diagnostic imaging</topic><topic>Treatment Outcome</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Small, S R</creatorcontrib><creatorcontrib>Ritter, M A</creatorcontrib><creatorcontrib>Merchun, J G</creatorcontrib><creatorcontrib>Davis, K E</creatorcontrib><creatorcontrib>Rogge, R D</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>The bone & joint journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Small, S R</au><au>Ritter, M A</au><au>Merchun, J G</au><au>Davis, K E</au><au>Rogge, R D</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Changes in tibial bone density measured from standard radiographs in cemented and uncemented total knee replacements after ten years' follow-up</atitle><jtitle>The bone & joint journal</jtitle><addtitle>Bone Joint J</addtitle><date>2013-07-01</date><risdate>2013</risdate><volume>95-B</volume><issue>7</issue><spage>911</spage><epage>916</epage><pages>911-916</pages><issn>2049-4394</issn><eissn>2049-4408</eissn><abstract>Stress shielding resulting in diminished bone density following total knee replacement (TKR) may increase the risk of migration and loosening of the prosthesis. This retrospective study was designed to quantify the effects of the method of fixation on peri-prosthetic tibial bone density beneath cemented and uncemented tibial components of similar design and with similar long-term survival rates. Standard radiographs taken between two months and 15 years post-operatively were digitised from a matched group of TKRs using cemented (n = 67) and uncemented (n = 67) AGC tibial prostheses. Digital radiograph densitometry was used to quantify changes in bone density over time. Age, length of follow-up, gender, body mass index and alignment each significantly influenced the long-term pattern of peri-prosthetic bone density. Similar long-term changes in density irrespective of the method of fixation correlated well with the high rate of survival of this TKR at 20 years, and suggest that cemented and uncemented fixation are both equally viable.</abstract><cop>England</cop><pmid>23814242</pmid><doi>10.1302/0301-620x.95b7.30537</doi><tpages>6</tpages></addata></record> |
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| identifier | ISSN: 2049-4394 |
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| source | MEDLINE; Journals@Ovid Complete; Alma/SFX Local Collection |
| subjects | Adolescent Adult Aged Aged, 80 and over Arthroplasty, Replacement, Knee - adverse effects Arthroplasty, Replacement, Knee - methods Bone Cements - adverse effects Bone Density Cementation - adverse effects Cementation - methods Female Follow-Up Studies Humans Knee Joint - diagnostic imaging Knee Joint - surgery Knee Prosthesis Male Middle Aged Prosthesis Design - adverse effects Prosthesis Failure Radiography Retrospective Studies Survival Rate Tibia - diagnostic imaging Treatment Outcome Young Adult |
| title | Changes in tibial bone density measured from standard radiographs in cemented and uncemented total knee replacements after ten years' follow-up |
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