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Neither Residual Anterior Knee Laxity Up to 6 mm nor a Pivot Glide Predict Patient-Reported Outcome Scores or Subsequent Knee Surgery Between 2 and 6 Years After ACL Reconstruction.

Publication ,  Journal Article
Magnussen, RA; Reinke, EK; Huston, LJ; MOON Knee Group, ; Briskin, I; Cox, CL; Dunn, WR; Flanigan, DC; Jones, MH; Kaeding, CC; Matava, MJ ...
Published in: The American journal of sports medicine
August 2021

A primary goal of anterior cruciate ligament reconstruction (ACLR) is to reduce pathologically increased anterior and rotational laxity of the knee, but the effects of residual laxity on patient-reported outcomes (PROs) after ACLR remain unclear.Increased residual laxity at 2 years postoperatively is predictive of a higher risk of subsequent ipsilateral knee surgery and decreases in PRO scores from 2 to 6 years after surgery.Cohort study; Level of evidence, 2.From a prospective multicenter cohort, 433 patients aged <36 years were identified at a minimum 2 years after primary ACLR. These patients underwent a KT-1000 arthrometer assessment and pivot-shift test and completed PRO assessments with the Knee injury and Osteoarthritis Outcome Score and International Knee Documentation Committee (IKDC) scores. Patients completed the same PROs at 6 years postoperatively, and any subsequent ipsilateral knee procedures during this period were recorded. Subsequent surgery risk and change in PROs from 2 to 6 years postoperatively were compared based on residual side-to-side KT-1000 arthrometer differences (<-1 mm, -1 to 2 mm, 2 to 6 mm, and >6 mm) in laxity at 2 years postoperatively. Multiple linear regression models were built to determine the relationship between 2-year postoperative knee laxity and 2- to 6-year change in PROs while controlling for age, sex, body mass index, smoking status, meniscal and cartilage status, and graft type.A total of 381 patients (87.9%) were available for follow-up 6 years postoperatively. There were no significant differences in risk of subsequent knee surgery based on residual knee laxity. Patients with a difference >6 mm in side-to-side anterior laxity at 2 years postoperatively were noted to have a larger decrease in PROs from 2 to 6 years postoperatively (P < .05). No significant differences in any PROs were noted among patients with a difference <6 mm in side-to-side anterior laxity or those with pivot glide (IKDC B) versus no pivot shift (IKDC A).The presence of a residual side-to-side KT-1000 arthrometer difference <6 mm or pivot glide at 2 years after ACLR is not associated with an increased risk of subsequent ipsilateral knee surgery or decreased PROs up to 6 years after ACLR. Conversely, patients exhibiting a difference >6 mm in side-to-side anterior laxity were noted to have significantly decreased PROs at 6 years after ACLR.

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Published In

The American journal of sports medicine

DOI

EISSN

1552-3365

ISSN

0363-5465

Publication Date

August 2021

Volume

49

Issue

10

Start / End Page

2631 / 2637

Related Subject Headings

  • Treatment Outcome
  • Prospective Studies
  • Patient Reported Outcome Measures
  • Orthopedics
  • Knee Joint
  • Humans
  • Cohort Studies
  • Anterior Cruciate Ligament Injuries
  • 4207 Sports science and exercise
  • 4201 Allied health and rehabilitation science
 

Citation

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Magnussen, R. A., Reinke, E. K., Huston, L. J., MOON Knee Group, ., Briskin, I., Cox, C. L., … Spindler, K. P. (2021). Neither Residual Anterior Knee Laxity Up to 6 mm nor a Pivot Glide Predict Patient-Reported Outcome Scores or Subsequent Knee Surgery Between 2 and 6 Years After ACL Reconstruction. The American Journal of Sports Medicine, 49(10), 2631–2637. https://doi.org/10.1177/03635465211025003
Magnussen, Robert A., Emily K. Reinke, Laura J. Huston, Laura J. MOON Knee Group, Isaac Briskin, Charles L. Cox, Warren R. Dunn, et al. “Neither Residual Anterior Knee Laxity Up to 6 mm nor a Pivot Glide Predict Patient-Reported Outcome Scores or Subsequent Knee Surgery Between 2 and 6 Years After ACL Reconstruction.The American Journal of Sports Medicine 49, no. 10 (August 2021): 2631–37. https://doi.org/10.1177/03635465211025003.
Magnussen RA, Reinke EK, Huston LJ, MOON Knee Group, Briskin I, Cox CL, et al. Neither Residual Anterior Knee Laxity Up to 6 mm nor a Pivot Glide Predict Patient-Reported Outcome Scores or Subsequent Knee Surgery Between 2 and 6 Years After ACL Reconstruction. The American journal of sports medicine. 2021 Aug;49(10):2631–7.
Magnussen, Robert A., et al. “Neither Residual Anterior Knee Laxity Up to 6 mm nor a Pivot Glide Predict Patient-Reported Outcome Scores or Subsequent Knee Surgery Between 2 and 6 Years After ACL Reconstruction.The American Journal of Sports Medicine, vol. 49, no. 10, Aug. 2021, pp. 2631–37. Epmc, doi:10.1177/03635465211025003.
Magnussen RA, Reinke EK, Huston LJ, MOON Knee Group, Briskin I, Cox CL, Dunn WR, Flanigan DC, Jones MH, Kaeding CC, Matava MJ, Parker RD, Smith MV, Wright RW, Spindler KP. Neither Residual Anterior Knee Laxity Up to 6 mm nor a Pivot Glide Predict Patient-Reported Outcome Scores or Subsequent Knee Surgery Between 2 and 6 Years After ACL Reconstruction. The American journal of sports medicine. 2021 Aug;49(10):2631–2637.
Journal cover image

Published In

The American journal of sports medicine

DOI

EISSN

1552-3365

ISSN

0363-5465

Publication Date

August 2021

Volume

49

Issue

10

Start / End Page

2631 / 2637

Related Subject Headings

  • Treatment Outcome
  • Prospective Studies
  • Patient Reported Outcome Measures
  • Orthopedics
  • Knee Joint
  • Humans
  • Cohort Studies
  • Anterior Cruciate Ligament Injuries
  • 4207 Sports science and exercise
  • 4201 Allied health and rehabilitation science