The Degree of Knee Extension Does Not Affect Postoperative Stability or Subsequent Graft Tear Rate After Anterior Cruciate Ligament Reconstruction With Patellar Tendon Autograft

The American Journal of Sports Medicine
Rodney W BennerTinker Gray

Abstract

There is concern that high degrees of hyperextension may lead to an increase in graft laxity or graft failure after anterior cruciate ligament (ACL) reconstruction. Patients with a high degree of hyperextension will have a higher rate of graft tear/failure and lower subjective scores after surgery compared with patients with less knee extension. Cohort study, Level of evidence, 2. Of 2329 patients who underwent ACL reconstruction with patellar tendon autograft between 1998 and 2008, there were 625 patients who met the inclusion criteria of having primary ACL surgery, no bilateral ACL injuries, no existing osteoarthritis, and having either ≥6° of knee hyperextension before and after surgery (group A: n = 318; mean hyperextension, 8° ± 2° [range, 6°-15°]) or ≤3° of knee hyperextension before and after surgery (group B: n = 307; mean hyperextension, 0° ± 3° [range, 3° hyperextension to -4° short of 0° neutral]). KT-1000 arthrometer manual maximum difference between knees, range of motion measurements, and subjective follow-up with International Knee Documentation Committee (IKDC) and Cincinnati Knee Ratings Scale (CKRS) surveys were used to evaluate results. Subsequent graft tear related to specific injury within 5 years of surger...Continue Reading

References

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Citations

Jul 18, 2017·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Kanto NagaiWilliam Anderst
Jul 6, 2018·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·David SundemoAnders Stålman
Nov 5, 2019·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Antonio KlasanDavid Anthony Parker
Mar 3, 2017·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Tomohiro TomiharaNagakazu Shimada
Feb 24, 2021·Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association·Nathan M KrebsFrank R Noyes

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