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International Orthopaedics

, Volume 39, Issue 8, pp 1611–1614 | Cite as

Quantification of tibial bone loss in antegrade versus retrograde tunnel placement for anterior cruciate ligament reconstruction

  • Michael Osti
  • Alessa Krawinkel
  • Thomas Hoffelner
  • Karl Peter Benedetto
Original Paper

Abstract

Purpose

Tibial bone destruction during primary graft tunnel placement and tibial bone loss following tunnel enlargement represent major challenges in revision reconstruction of the anterior cruciate ligament (ACL). Initial all-inside ACL reconstruction facilitates the preparation of tibial bone sockets rather than full tunnels that potentially preserve tibial bone stock. The purpose of this study was to comparatively assess length, diameter and volume of tibial graft tunnels following all-inside and conventional ACL reconstruction.

Methods

Postoperative computed tomography (CT) scans of 59 patients were assessed following ACL reconstruction. In 35 patients we used conventional antegrade tibial tunnel drilling and in 24 all-inside retrograde tibial bone sockets. Imaging analysis included total, minimal and maximal tunnel length and tunnel diameter. Tunnel volumes were calculated corresponding to these parameters.

Results

Statistically significant group differences (p < 0.01) could be detected for tibial tunnel volume, length and diameter between conventional antegrade and all-inside retrograde tibial bone tunnels and sockets, respectively.

Conclusions

Compared with conventional techniques, all-inside retrograde drilling of tibial bone sockets is effective in preserving significant bone stock, which might be beneficial for revision reconstruction in cases of eventual primary graft failure.

Keywords

ACL  Reconstruction Antegrade Drilling All-inside Bone socket Tibial bone loss 

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Copyright information

© SICOT aisbl 2015

Authors and Affiliations

  • Michael Osti
    • 1
  • Alessa Krawinkel
    • 1
  • Thomas Hoffelner
    • 2
  • Karl Peter Benedetto
    • 1
  1. 1.Department for Trauma Surgery and Sports TraumatologyAcademic Hospital FeldkirchFeldkirchAustria
  2. 2.Department for Trauma Surgery and Sports TraumatologyParacelsus Medical University SalzburgSalzburgAustria

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