Excursion of bone-patella tendon-bone grafts during the flexioneextension movement in anterior cruciate ligament reconstruction: Comparison between isometric and anatomic reconstruction techniques

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Excursion of bone-patella tendon-bone grafts during the flexioneextension movement in anterior cruciate ligament reconstruction: Comparison between isometric and anatomic reconstruction techniques

Yasuhiro Take [et al.] - Nama Orang;

Background/objective: The purpose of this study was to elucidate the biomechanical differences between anterior cruciate ligament (ACL) grafts reconstructed by isometric and anatomic reconstruction techniques, based on their length changes.
Methods: One hundred and thirty-three knees with primary ACL reconstruction using the bone-patellar tendon-bone (BTB) graft were retrospectively identified. Twenty-two knees and 111 knees underwent isometric round tunnel (IRT) ACL reconstruction and anatomic rectangular tunnel (ART) ACL reconstruction, respectively.
Results: After femoral-side fixation of the graft in the surgery, the length change of the graft from 120 flexion to full extension was measured by using an isometric positioner at the tibial side. Both reconstructive techniques showed little length change from 120 to ~20 of flexion, followed by elongation of the graft, until full extension. The amount of length change of the grafts was 1.0 ± 0.7 mm with the IRT technique, and 3.4 ± 0.9 mm with the ART technique. These findings were significantly different, based on the ManneWhitney U test ( p < 0.001).
Conclusion: The native ACL has an intrinsic length change of 3e6 mm, and therefore the ART technique may more closely replicate the biomechanical function of the native ACL.

Keywords: anterior cruciate ligament reconstruction; biomechanics; isometric; length change

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Judul Seri: Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology
No. Panggil: -
Penerbit: : Asia Pacific Knee., 2015
Deskripsi Fisik: Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology 2 (2015) 85e89
Bahasa: English
ISBN/ISSN: -
Klasifikasi: -
Tipe Isi: -
Tipe Media: -
Tipe Pembawa: -
Edisi: -
Subjek: Sport And Kesehatan
Info Detail Spesifik: -
Pernyataan Tanggungjawab: Wati/Agus

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FULL TEXT:Excursion of bone-patella tendon-bone grafts during the flexioneextension movement in anterior cruciate ligament reconstruction: Comparison between isometric and anatomic reconstruction techniques

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