Abstract:
OBJECTIVES:Small animal models of fracture repair primarily investigate indirect fracture healing via external callus formation. We present the first described rat model of direct fracture healing. METHODS:A rat tibial osteotomy was created and fixed with compression plating similar to that used in patients. The procedure was evaluated in 15 cadaver rats and then in vivo in ten Sprague-Dawley rats. Controls had osteotomies stabilised with a uniaxial external fixator that used the same surgical approach and relied on the same number and diameter of screw holes in bone. RESULTS:Fracture healing occurred without evidence of external callus on plain radiographs. At six weeks after fracture fixation, the mean stress at failure in a four-point bending test was 24.65 N/mm(2) (sd 6.15). Histology revealed 'cutting-cones' traversing the fracture site. In controls where a uniaxial external fixator was used, bone healing occurred via external callus formation. CONCLUSIONS:A simple, reproducible model of direct fracture healing in rat tibia that mimics clinical practice has been developed for use in future studies of direct fracture healing.
journal_name
Bone Joint Resjournal_title
Bone & joint researchauthors
Savaridas T,Wallace RJ,Muir AY,Salter DM,Simpson AHdoi
10.1302/2046-3758.111.2000087subject
Has Abstractpub_date
2012-11-01 00:00:00pages
289-96issue
11issn
2046-3758pii
2000087journal_volume
1pub_type
杂志文章abstract:OBJECTIVES:The number of surgical procedures performed each year to treat femoroacetabular impingement (FAI) continues to rise. Although there is evidence that surgery can improve symptoms in the short-term, there is no evidence that it slows the development of osteoarthritis (OA). We performed a feasibility study to d...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.22.2000137
更新日期:2013-02-01 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.56.2000469
更新日期:2016-06-01 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.45.2000292
更新日期:2015-05-01 00:00:00
abstract::Chondrocyte hypertrophy represents a crucial turning point during endochondral bone development. This process is tightly regulated by various factors, constituting a regulatory network that maintains normal bone development. Histone deacetylase 4 (HDAC4) is the most well-characterized member of the HDAC class IIa fami...
journal_title:Bone & joint research
pub_type: 杂志文章,评审
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更新日期:2020-05-16 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.812.BJR-2019-0114.R1
更新日期:2020-01-08 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.58.2000626
更新日期:2016-08-01 00:00:00
abstract:Objectives:We studied subchondral intraosseous pressure (IOP) in an animal model during loading, and with vascular occlusion. We explored bone compartmentalization by saline injection. Materials and Methods:Needles were placed in the femoral condyle and proximal tibia of five anaesthetized rabbits and connected to pre...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.78.BJR-2017-0343.R2
更新日期:2018-09-15 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.87.BJR-2018-0271.R1
更新日期:2019-08-02 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.911.BJR-2020-0112.R1
更新日期:2020-11-01 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
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更新日期:2019-11-02 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.18.2000095
更新日期:2012-08-01 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.29.2000176
更新日期:2013-09-02 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.610.BJR-2017-0094.R1
更新日期:2017-10-01 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
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更新日期:2021-01-01 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.29.2000196
更新日期:2013-09-10 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.211.2000206
更新日期:2013-11-27 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.54.2000578
更新日期:2016-04-01 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.73.BJR-2017-0193.R1
更新日期:2018-05-05 00:00:00
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journal_title:Bone & joint research
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更新日期:2013-10-02 00:00:00
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pub_type: 杂志文章
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更新日期:2014-04-02 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.33.2000250
更新日期:2014-03-19 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
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更新日期:2016-11-01 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.33.2000226
更新日期:2014-03-10 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.29.2000179
更新日期:2013-09-18 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.54.2000628
更新日期:2016-04-01 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.82.BJR-2018-0174.R2
更新日期:2019-03-02 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.14.2000019
更新日期:2012-04-01 00:00:00
abstract:Aims:To evaluate graft healing of decellularized porcine superflexor tendon (pSFT) xenograft in an ovine anterior cruciate ligament (ACL) reconstruction model using two femoral fixation devices. Also, to determine if pSFT allows functional recovery of gait as compared with the preoperative measurements. Methods:A tota...
journal_title:Bone & joint research
pub_type: 杂志文章
doi:10.1302/2046-3758.96.BJR-2020-0030.R2
更新日期:2020-07-23 00:00:00
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journal_title:Bone & joint research
pub_type: 杂志文章
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更新日期:2019-12-03 00:00:00