Patellar tendon defect during the first year after anterior cruciate ligament reconstruction: Appearance on serial magnetic resonance imaging

Bernicker, J. P.; Haddad, John L.; Lintner, David M.; Diliberti, Thomas; Bocell, James R.

doi:10.1016/s0749-8063(98)70014-3

Cited by 50 publications

(37 citation statements)

References 13 publications

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“…Many research papers have demonstrated the regeneration of the tissues, in the area that provides these autografts [9][10][11][12][13][14][15][16][17].…”

mentioning

confidence: 99%

Anterior Cruciate Ligament Mechanoreceptors Regeneration Following Reconstruction Using Autografts

Angoules¹

2013

J Sports Med Doping Stud 2013

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“…Many research papers have demonstrated the regeneration of the tissues, in the area that provides these autografts [9][10][11][12][13][14][15][16][17].…”

mentioning

confidence: 99%

Anterior Cruciate Ligament Mechanoreceptors Regeneration Following Reconstruction Using Autografts

Angoules¹

2013

J Sports Med Doping Stud 2013

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“…Em nosso estudo a ativação das plaquetas para formação do gel foi feita utilizando trombina autóloga, obtida do plasma do próprio paciente. (37) , histopatologia (42) e ressonância magnética (35,36,(38)(39)(40)(41)(42) . Consideramos, a partir desses estudos, a ressonância magnética como um método de imagem apropriado para comparar a regeneração do ligamento da patela nos casos em que adicionamos o PRP com um grupo controle, em que nada foi acrescentado.…”

Section: Discussionunclassified

“…Os trabalhos existentes mostram que há a presença de um processo natural de regeneração do ligamento da patela após a retirada de enxerto, sem a adição de PRP ou fatores de crescimento (35,36,(38)(39)(40)(41)(42) . Os estudos com ressonância magnética seriada mostram que aos seis meses de pós-operatório a largura desse defeito, inicialmente de 10 mm, situa-se entre 6 mm (38) e 9 mm (39) , em média.…”

Section: Discussionunclassified

“…Os estudos com ressonância magnética seriada mostram que aos seis meses de pós-operatório a largura desse defeito, inicialmente de 10 mm, situa-se entre 6 mm (38) e 9 mm (39) , em média. Essa regeneração progride até cerca de 24 meses, atingindo um platô após esse período.…”

Section: Discussionunclassified

“…Os ensaios clínicos empregando o PRP em tendões e ligamentos, como roturas do tendão calcâneo (15) , tendinopatia patelar (16,17) e do calcâneo (18) , epicondilite do cotovelo (14) , e lesões do ligamento cruzado anterior (LCA) (20,21) (35)(36)(37) , com estudos por ressonância magnética seriada (38)(39)(40)(41) e até mesmo histológicos (42,43) . Observa-se uma redução progressiva do defeito, que persiste por vários anos (40,41) .…”

Section: Introductionunclassified

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Efeito do plasma rico em plaquetas na regeneração do terço central do ligamento da patela: estudo prospectivo randomizado

Almeida¹

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Effects of patellar position and defect healing on in vitro stifle joint kinematics following removal of the central one‐third of the patellar tendon in an ovine model

Bertollo

Bell

et al. 2010

Journal Orthopaedic Research

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Harvest of the central one-third of the patella tendon (PT) is routinely performed for anterior cruciate ligament reconstruction (ACLR). Patella infera may ensue. In this study we unilaterally resected the central one-third of the PT in 20 sheep, without reconstructing or defunctionalizing the native ACL, and examined the effects at 3, 6, 12, and 24 weeks postoperatively on PT length, histological appearance of the donor defect and in vitro stifle joint kinematics. Mean length increases ( p > 0.263) in the operated tendons of 0.3%, 2.8%, 0.5%, and 2.4% were observed at 3, 6, 12, and 24 weeks. A significant proximal shift of the patella correlated well with a mean 2.358 retardation of patellar flexion (r ¼ 0.440, p ¼ 0.001). A mean net 4.98 decrease in medial patellar tilt was also observed ( p < 0.001), but was not coupled with changes in tibial rotation. Donor defect tissue showed a distinct progression of healing with time, remodeling from dense scar tissue at 3 weeks to bundles of well-organized collagen enveloped by vascularized loose connective tissue at 24 weeks but was not associated with the restoration of kinematics. These results suggest that resection of the central one-third of the PT and leaving the defect open in the ovine stifle joint may be associated with increased PT length and changes in patellar kinematics which do not recover 6 months postoperatively. The lack of patella infera may render this animal model unsuitable for the interpretation of joint kinematics following PT resection for human ACLR. ß

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Patellar tendon defect during the first year after anterior cruciate ligament reconstruction: Appearance on serial magnetic resonance imaging

Cited by 50 publications

References 13 publications

Anterior Cruciate Ligament Mechanoreceptors Regeneration Following Reconstruction Using Autografts

Anterior Cruciate Ligament Mechanoreceptors Regeneration Following Reconstruction Using Autografts

Efeito do plasma rico em plaquetas na regeneração do terço central do ligamento da patela: estudo prospectivo randomizado

Effects of patellar position and defect healing on in vitro stifle joint kinematics following removal of the central one‐third of the patellar tendon in an ovine model

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