Fixation strengths of patellar tendon-bone grafts

Matthews, Leslie S.; Lawrence, Steven J.; Yahiro, Martin A.; Sinclair, Mark R.

doi:10.1016/s0749-8063(05)80348-2

Cited by 85 publications

(51 citation statements)

References 8 publications

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“…3 The Ligament Plate® (Solco Biomedical, Seoul, Korea) Fig. 2 The implants are from left to right: EndoButton®, TransFix®, BioScrew®, and Ligament Plate® ful early rehabilitation, fixation strength of the graft is the most important factor [3,6,18].…”

Section: Discussionmentioning

confidence: 99%

Comparative biomechanical study of the Ligament Plate® and other fixation devices in ACL reconstruction

Sim

Kwak

Yang

et al. 2008

International Orthopaedics (SICOT)

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The objective of this study was to evaluate and compare the biomechanical properties of the Ligament Plate® with other femoral fixation devices. The Ligament Plate® and three different femoral fixation devices were used in fixation of 60 porcine femora and harvested porcine tendons. For each fixation device, a porcine graft-tendon complex was used for the simple load-to-failure test and the load-to-failure test after a cyclic loading test, and the maximal failure load was measured. The amount of graft elongation and failure pattern after the cyclic loading test and load-to-failure test were evaluated. In the BioScrew® group, the mean maximal failure load in the load-to-failure test and load-to-failure test after a cyclic loading test was significantly lower and significant graft elongation was noted. There were no significant differences between the other groups. The Ligament Plate® provided adequate initial fixation power suitable for early rehabilitation.

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Section: Discussionmentioning

confidence: 99%

Comparative biomechanical study of the Ligament Plate® and other fixation devices in ACL reconstruction

Sim

Kwak

Yang

et al. 2008

International Orthopaedics (SICOT)

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“…Nowadays, the interference screw fi xation is one the most popular method in ACL reconstruction, and there are several biomechanical studies proving its effi ciency and good mechanical properties 25,26,27,28,29,30,31 .…”

Section: Original Articlesmentioning

confidence: 99%

“…As well as the strength of the graft material used for the replacement, the fi xation is also of great concern with regard to the primary stability of the knee 27,30 . Several studies have found that during maximum tensile strength tests the failure occurs more often at the graft fi xation site than within the ligamentous tissue itself 2,3,4,5 .…”

Section: Original Articlesmentioning

confidence: 99%

Testing of prototype interference screw for ACL reconstruction in porcine femurs

Kovács¹,

Nagy²,

Oroszlány³

et al. 2011

Biomech Hung

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Multiple techniques for the reconstruction of anterior cruciate ligament (ACL) are available, most of which use implant made from metallic or bioabsorbable materials. Currently one of the most widely used fi xation methods for anterior cruciate ligament reconstruction with bone tendonbone graft is the interference screw. The aim of our work was to test custom design screw geometry, whether it is appropriate for ACL reconstruction. New screw was designed geometry for the work, so that screws with the same geometry could be produced for later work, from different materials. In this study injection molded biodegradable interference screws were tested on porcine femurs, with bone-patellar tendon-bone (BPTB) graft fi xation. The average failure load and the stiffness (772 ± 225 N and 109 ± 33.9 N/mm respectively) of the fi xation was higher than literature average, although within standard deviation. Test results showed that the designed screw geometry is adequate for BPTB graft fi xation.

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“…While the patellar-bone tendon-bone (PBTB) graft has been reported to be the most suitable ACL-substitute [3,5,6,8,12], hamstring-tendon or quadriceps tendon (QT) have been shown to be sufficient alternatives [ 1, 2,4,7,13,25]. Biomechanical testing has revealed that graft materials show higher initial strength than the intact ACL, so that the weakest link appears to be not the graft itself, but rather its femoral or tibial fixation [ 16,221. While interference screw-fixation is a widely accepted procedure for graft-anchorage [ 14,161, femoral press-fit fixation technique of PBTB grafts, developed by Hertel [lo], has proven to be a sufficient alternative in graft fixation.…”

Section: Introductionmentioning

confidence: 99%

Histomorphology and microradiography of quadriceps tendon–patellar bone grafts in press‐fit anterior cruciate ligament reconstruction

Dargel¹,

Schmidt-Wiethoff²,

Schmidt³

et al. 2005

Journal Orthopaedic Research

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The press-fit fixation technique has become an alternative fixation method in anterior cruciate ligament (ACL) reconstruction. While the stability of press-fit fixated grafts reported in the literature predominantly had been analysed by biomechanical testing, this study investigated the specific histomorphologic and microradiographic features important for graft stability, using human quadriceps tendon-patellar bone (QTPB) grafts. Six QTPB grafts with cylindrical bone plugs were obtained from frozen fresh human cadaver knees and fixed to porcine, bovine, or human femora in a press-fit technique. The specimens were plastinated, dissected into 1.5 mm slices, studied microradiographically and stained for histologic evaluation. The specimens showed an osseous inclusion of the graft within the femoral tunnel, which was most evident on the cancellous side. Histologic analysis revealed a trabecular interdigitation with a penetration of patellar and femoral trabecular structures, contributing to primary stability of the press-fit fixation. Graft inclusion was most obvious in bovine and least in human femora, assumably because of varying bone quality. The circular bone-to-bone contact in press-fit fixation technique should contribute to both rapid and stable graft healing.

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Fixation strengths of patellar tendon-bone grafts

Cited by 85 publications

References 8 publications

Comparative biomechanical study of the Ligament Plate® and other fixation devices in ACL reconstruction

Comparative biomechanical study of the Ligament Plate® and other fixation devices in ACL reconstruction

Testing of prototype interference screw for ACL reconstruction in porcine femurs

Histomorphology and microradiography of quadriceps tendon–patellar bone grafts in press‐fit anterior cruciate ligament reconstruction

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