Stability Outcomes following Computer-Assisted ACL Reconstruction

Abstract EN

Purpose.

The purpose of this study was to determine whether intraoperative prereconstruction stability measurements and/or patient characteristics were associated with final knee stability after computer-assisted ACL reconstruction.

Methods.

This was a retrospective review of all patients who underwent computer-assisted single-bundle ACL reconstruction by a single surgeon.

Prereconstruction intraoperative stability measurements were correlated with patient characteristics and postreconstruction stability measurements.

143 patients were included (87 male and 56 female).

Average age was 29.8 years (SD ± 11.8).

Results.

Females were found to have significantly more pre- and postreconstruction internal rotation than males (P < 0.001 and P = 0.001, resp.).

Patients with additional intra-articular injuries demonstrated more prereconstruction anterior instability than patients with isolated ACL tears (P < 0.001).

After reconstruction, these patients also had higher residual anterior translation (P = 0.01).

Among all patients with ACL reconstructions, the percent of correction of anterior translation was found to be significantly higher than the percent of correction for internal or external rotation (P < 0.001).

Conclusion.

Anterior translation was corrected the most using a single-bundle ACL reconstruction.

Females had higher pre- and postoperative internal rotation.

Patients with additional injuries had greater original anterior translation and less operative correction of anterior translation compared to patients with isolated ACL tears.