Avoiding tunnel collisions between fibular collateral ligament and ACL posterolateral bundle reconstruction

Michele D'Arienzo, Lawrence Camarda, Giovanni Palermo Patera, Leone Filosto, Robert F. Laprade, Giovanni Palermo Patera

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15 Citazioni (Scopus)


PURPOSE:The purpose of this study was to evaluate the risk of tunnel collisions of the fibular collateral ligament (FCL) and posterolateral bundle anterior cruciate ligament (PLB-ACL) tunnels during a combined FCL and double-dundle (DB) ACL reconstruction.METHODS:Thirty-six 4th-generation synthetic femurs (Sawbones, Pacific Research Laboratories, Vashon, WA) were utilized, and two different femur sizes were used. A FCL tunnel and a PLB-ACL tunnel were reamed on each femur. The tunnels of synthetic specimens that did not have a collision were filled with an epoxy resin augmented with BaSO(4) and radiographic evaluation, and Multidetector CT exams of the specimens were performed.RESULTS:The rate of tunnel collision when the FCL tunnel was reamed to a depth of 30 mm was 75 and 69.4% for the 25 mm depth. There was a significantly increased risk of tunnel collision when the FCL tunnel was reamed proximally with coronal angulations of 20° and 40°. No collisions were noted when the FCL tunnel was reamed parallel to the distal condylar line and with axial angulations of 20° and 40°.CONCLUSION:This study provides new insight into tunnel positioning during a combined FCL and DB-ACL reconstruction. The results show that a concomitant FCL injury do not represent a contraindication to perform a DB-ACL reconstruction as long as the FCL tunnel is reamed with no proximal angulation and is directed anteriorly with an axial angulation between 20° and 40°.
Lingua originaleEnglish
pagine (da-a)598-603
Numero di pagine6
RivistaKnee Surgery, Sports Traumatology, Arthroscopy
Stato di pubblicazionePublished - 2011


All Science Journal Classification (ASJC) codes

  • Surgery
  • Orthopedics and Sports Medicine

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