Femoral Tunnel Widening after Quadrupled Hamstring Anterior Cruciate Ligament Reconstruction

Purpose. To evaluate the extent of femoral tunnel widening after quadrupled hamstring anterior cruciate ligament reconstruction using femoral cross pin fixation in contrast to bioabsorbable screw fixation augmented with Endopearl. Methods. 16 patients underwent cross pin femoral fixation and the nex...

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Main Authors: Philip Cheung, Wai-Lam Chan, Chi-Hung Yen, Sze-Chung Cheng, Siu-Bon Woo, Tsz-Kau Wong, Wing-Cheung Wong
Format: Article
Language:English
Published: SAGE Publishing 2010-08-01
Series:Journal of Orthopaedic Surgery
Online Access:https://doi.org/10.1177/230949901001800213
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author Philip Cheung
Wai-Lam Chan
Chi-Hung Yen
Sze-Chung Cheng
Siu-Bon Woo
Tsz-Kau Wong
Wing-Cheung Wong
author_facet Philip Cheung
Wai-Lam Chan
Chi-Hung Yen
Sze-Chung Cheng
Siu-Bon Woo
Tsz-Kau Wong
Wing-Cheung Wong
author_sort Philip Cheung
collection DOAJ
description Purpose. To evaluate the extent of femoral tunnel widening after quadrupled hamstring anterior cruciate ligament reconstruction using femoral cross pin fixation in contrast to bioabsorbable screw fixation augmented with Endopearl. Methods. 16 patients underwent cross pin femoral fixation and the next 15 underwent bioabsorbable screw fixation augmented with Endopearl. The patients were evaluated radiographically for femoral tunnel widening. Standard posteroanterior radiographs of the knee in full extension were taken at postoperative year 2 and 5. The tunnel width was measured at the opening, the widest and the most proximal parts of the femoral tunnel. Results. In the femoral cross pin and bioabsorbable screw fixations, the mean femoral tunnel sizes were 7.6 and 8.0 mm, respectively. The overall mean tunnel widening at all measured sites were 2.7 and 1.8 mm at the 2-year follow-up and were 2.5 and 1.8 mm at the 5-year follow-up, respectively. The femoral tunnel widening was greater in the cross pin than the bioabsorbable screw group, but only the difference in the most proximal part was significant (p=0.01 at year 2 and p<0.001 at year 5). Conclusion. Femoral tunnel widening was greater in femoral cross pin fixation, probably related to the windshield-wiper and bungee-cord effects. It usually occurred in the first 2 years after the operation and remained static thereafter.
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spelling doaj.art-4f82190136844b0ca06afff7d0468c8a2022-12-21T18:10:15ZengSAGE PublishingJournal of Orthopaedic Surgery2309-49902010-08-011810.1177/230949901001800213Femoral Tunnel Widening after Quadrupled Hamstring Anterior Cruciate Ligament ReconstructionPhilip CheungWai-Lam ChanChi-Hung YenSze-Chung ChengSiu-Bon WooTsz-Kau WongWing-Cheung WongPurpose. To evaluate the extent of femoral tunnel widening after quadrupled hamstring anterior cruciate ligament reconstruction using femoral cross pin fixation in contrast to bioabsorbable screw fixation augmented with Endopearl. Methods. 16 patients underwent cross pin femoral fixation and the next 15 underwent bioabsorbable screw fixation augmented with Endopearl. The patients were evaluated radiographically for femoral tunnel widening. Standard posteroanterior radiographs of the knee in full extension were taken at postoperative year 2 and 5. The tunnel width was measured at the opening, the widest and the most proximal parts of the femoral tunnel. Results. In the femoral cross pin and bioabsorbable screw fixations, the mean femoral tunnel sizes were 7.6 and 8.0 mm, respectively. The overall mean tunnel widening at all measured sites were 2.7 and 1.8 mm at the 2-year follow-up and were 2.5 and 1.8 mm at the 5-year follow-up, respectively. The femoral tunnel widening was greater in the cross pin than the bioabsorbable screw group, but only the difference in the most proximal part was significant (p=0.01 at year 2 and p<0.001 at year 5). Conclusion. Femoral tunnel widening was greater in femoral cross pin fixation, probably related to the windshield-wiper and bungee-cord effects. It usually occurred in the first 2 years after the operation and remained static thereafter.https://doi.org/10.1177/230949901001800213
spellingShingle Philip Cheung
Wai-Lam Chan
Chi-Hung Yen
Sze-Chung Cheng
Siu-Bon Woo
Tsz-Kau Wong
Wing-Cheung Wong
Femoral Tunnel Widening after Quadrupled Hamstring Anterior Cruciate Ligament Reconstruction
Journal of Orthopaedic Surgery
title Femoral Tunnel Widening after Quadrupled Hamstring Anterior Cruciate Ligament Reconstruction
title_full Femoral Tunnel Widening after Quadrupled Hamstring Anterior Cruciate Ligament Reconstruction
title_fullStr Femoral Tunnel Widening after Quadrupled Hamstring Anterior Cruciate Ligament Reconstruction
title_full_unstemmed Femoral Tunnel Widening after Quadrupled Hamstring Anterior Cruciate Ligament Reconstruction
title_short Femoral Tunnel Widening after Quadrupled Hamstring Anterior Cruciate Ligament Reconstruction
title_sort femoral tunnel widening after quadrupled hamstring anterior cruciate ligament reconstruction
url https://doi.org/10.1177/230949901001800213
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