Radiographic findings in revision anterior cruciate ligament reconstructions from the Mars cohort

MARS Group, David R Pearson

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

The Multicenter ACL (anterior cruciate ligament) Revision Study (MARS) group was developed to investigate revision ACL reconstruction outcomes. An important part of this is obtaining and reviewing radiographic studies. The goal for this radiographic analysis is to establish radiographic findings for a large revision ACL cohort to allow comparison with future studies. The study was designed as a cohort study. Various established radiographic parameters were measured by three readers. These included sagittal and coronal femoral and tibial tunnel position, joint space narrowing, and leg alignment. Inter- and intraobserver comparisons were performed. Femoral sagittal position demonstrated 42% were more than 40% anterior to the posterior cortex. On the sagittal tibia tunnel position, 49% demonstrated some impingement on full-extension lateral radiographs. Limb alignment averaged 43% medial to the medial edge of the tibial plateau. On the Rosenberg view (45-degree flexion view), the minimum joint space in the medial compartment averaged 106% of the opposite knee, but it ranged down to a minimum of 4.6%. Lateral compartment narrowing at its minimum on the Rosenberg view averaged 91.2% of the opposite knee, but it ranged down to a minimum of 0.0%. On the coronal view, verticality as measured by the angle from the center of the tibial tunnel aperture to the center of the femoral tunnel aperture measured 15.8 degree ± 6.9% from vertical. This study represents the radiographic findings in the largest revision ACL reconstruction series ever assembled. Findings were generally consistent with those previously demonstrated in the literature.

Original languageEnglish (US)
Pages (from-to)239-47
Number of pages9
JournalThe journal of knee surgery
Volume26
Issue number4
DOIs
StatePublished - Aug 2013

Bibliographical note

Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Keywords

  • Anterior Cruciate Ligament Reconstruction
  • Cohort Studies
  • Femur/diagnostic imaging
  • Humans
  • Knee Joint/diagnostic imaging
  • Longitudinal Studies
  • Radiography
  • Reoperation
  • Tibia/diagnostic imaging

PubMed: MeSH publication types

  • Journal Article
  • Multicenter Study

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