Drill wobble – effect on femoral tunnel aperture during anterior cruciate ligament reconstruction

Abstract Background In anterior cruciate ligament reconstruction performed using cortical button fixation on the femur, we have observed a “wobble” effect that can occur when a cannulated femoral drill is used over a guide pin that is not securely fixed in bone. Our study assessed the effect of dril...

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Main Authors: Naser Alnusif, Adam Hart, Maher Baroudi, Robert Marien, Mark Burman, Paul A. Martineau
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:Journal of Experimental Orthopaedics
Subjects:
Online Access:https://doi.org/10.1186/s40634-016-0073-1
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author Naser Alnusif
Adam Hart
Maher Baroudi
Robert Marien
Mark Burman
Paul A. Martineau
author_facet Naser Alnusif
Adam Hart
Maher Baroudi
Robert Marien
Mark Burman
Paul A. Martineau
author_sort Naser Alnusif
collection DOAJ
description Abstract Background In anterior cruciate ligament reconstruction performed using cortical button fixation on the femur, we have observed a “wobble” effect that can occur when a cannulated femoral drill is used over a guide pin that is not securely fixed in bone. Our study assessed the effect of drill “wobble” on femoral tunnel aperture in sawbones. Methods Femoral tunnels were drilled in sawbones, which had been divided in two groups of 10 each, per drilling technique. The “wobble” technique group had the smaller cortical button drill passed before drilling the graft socket with the bigger diameter femoral drill. In contrast, in the “non‐wobble” technique group, the smaller cortical button drill was passed after drilling the graft socket. The aperture dimensions: antero‐posterior, proximo‐distal and oblique, as well as the length of each tunnel, were measured. Results While the average dimensions of the tunnels were similar between the two techniques, there was significantly more variation in the antero‐posterior measurements for the wobble technique as compared to the non‐wobble technique (mean 7.3 mm, SD 0.28 mm, and mean 7.3 mm, SD 0.11 mm, respectively; Brown‐Forsythe test, p 0.02). Conclusion We conclude that using the “socket first” “non‐wobble” technique is a single surgical technical step surgeons can employ to decrease variability in tunnel aperture and size.
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spelling doaj.art-f70a01f9c8924e0ca9bc2394b778a1462024-02-07T15:05:53ZengWileyJournal of Experimental Orthopaedics2197-11532016-01-0131n/an/a10.1186/s40634-016-0073-1Drill wobble – effect on femoral tunnel aperture during anterior cruciate ligament reconstructionNaser Alnusif0Adam Hart1Maher Baroudi2Robert Marien3Mark Burman4Paul A. Martineau5Division of Orthopaedic SurgeryMcGill University Health Centre1650 Cedar Avenue, A5‐175.1H3G 1A4MontrealQCCanadaDivision of Orthopaedic SurgeryMcGill University Health Centre1650 Cedar Avenue, A5‐175.1H3G 1A4MontrealQCCanadaDivision of Orthopaedic SurgeryMcGill University Health Centre1650 Cedar Avenue, A5‐175.1H3G 1A4MontrealQCCanadaDivision of Orthopaedic SurgeryMcGill University Health Centre1650 Cedar Avenue, A5‐175.1H3G 1A4MontrealQCCanadaDivision of Orthopaedic SurgeryMcGill University Health Centre1650 Cedar Avenue, A5‐175.1H3G 1A4MontrealQCCanadaDivision of Orthopaedic SurgeryMcGill University Health Centre1650 Cedar Avenue, A5‐175.1H3G 1A4MontrealQCCanadaAbstract Background In anterior cruciate ligament reconstruction performed using cortical button fixation on the femur, we have observed a “wobble” effect that can occur when a cannulated femoral drill is used over a guide pin that is not securely fixed in bone. Our study assessed the effect of drill “wobble” on femoral tunnel aperture in sawbones. Methods Femoral tunnels were drilled in sawbones, which had been divided in two groups of 10 each, per drilling technique. The “wobble” technique group had the smaller cortical button drill passed before drilling the graft socket with the bigger diameter femoral drill. In contrast, in the “non‐wobble” technique group, the smaller cortical button drill was passed after drilling the graft socket. The aperture dimensions: antero‐posterior, proximo‐distal and oblique, as well as the length of each tunnel, were measured. Results While the average dimensions of the tunnels were similar between the two techniques, there was significantly more variation in the antero‐posterior measurements for the wobble technique as compared to the non‐wobble technique (mean 7.3 mm, SD 0.28 mm, and mean 7.3 mm, SD 0.11 mm, respectively; Brown‐Forsythe test, p 0.02). Conclusion We conclude that using the “socket first” “non‐wobble” technique is a single surgical technical step surgeons can employ to decrease variability in tunnel aperture and size.https://doi.org/10.1186/s40634-016-0073-1Anterior cruciate ligamentFemoral tunnel placementWobble effectAnterior cruciate ligament reconstruction failure
spellingShingle Naser Alnusif
Adam Hart
Maher Baroudi
Robert Marien
Mark Burman
Paul A. Martineau
Drill wobble – effect on femoral tunnel aperture during anterior cruciate ligament reconstruction
Journal of Experimental Orthopaedics
Anterior cruciate ligament
Femoral tunnel placement
Wobble effect
Anterior cruciate ligament reconstruction failure
title Drill wobble – effect on femoral tunnel aperture during anterior cruciate ligament reconstruction
title_full Drill wobble – effect on femoral tunnel aperture during anterior cruciate ligament reconstruction
title_fullStr Drill wobble – effect on femoral tunnel aperture during anterior cruciate ligament reconstruction
title_full_unstemmed Drill wobble – effect on femoral tunnel aperture during anterior cruciate ligament reconstruction
title_short Drill wobble – effect on femoral tunnel aperture during anterior cruciate ligament reconstruction
title_sort drill wobble effect on femoral tunnel aperture during anterior cruciate ligament reconstruction
topic Anterior cruciate ligament
Femoral tunnel placement
Wobble effect
Anterior cruciate ligament reconstruction failure
url https://doi.org/10.1186/s40634-016-0073-1
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